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in/out | Default policy | Advertising methods | Filtering methods | Filtering policy application levels |
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Import | Route information reception is not limited | Network, Redistribute | Route-map — the last (implicit) rule denies anything that is not explicitly allowed by the previous rules. Prefix-list — the last (implicit) rule denies anything that is not explicitly allowed by the previous rules. | RIP process |
Export | Without separate advertising commands, the router/controller does not send routing information | Prefix-list — the last (implicit) rule allows anything that is not explicitly denied by the previous rules. Prefix-list — the last (implicit) rule allows anything that is not explicitly denied by the previous rules. |
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Static routing is a type of routing in which routes/controllers are defined explicitly during the router configuration without dynamic routing protocols.
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- <VRF> – VRF name, set by the string of up to 31 characters.
- <SUBNET> – destination address, can be specified in the following format:
- BBB.CCC.DDD – host IP address, where each part takes values of [0..255].
- BBB.CCC.DDD/NN – network IP address with prefix mask, where AAA-DDD take values of [0..255] and NN takes values of [1..32].
- <NEXTHOP> – gateway IP address, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255];
- <IF> – an IP interface name specified in the form described in Section Types and naming order of router interfaces;
- <TUN> – the name of the tunnel is specified as described in section Types and naming order of router tunnels;
- <RULE> – wan rule number, set in the range of [1..50];
- blackhole – when specifying the command, the packets to this subnet will be removed by the device without sending notifications to a sender;
- unreachable – when specifying the command, the packets to this subnet will be removed by the device, a sender will receive in response ICMP Destination unreachable (Host unreachable, code 1);
- prohibit – when specifying the command, the packets to this subnet will be removed by the device, a sender will receive in response ICMP Destination unreachable (Communication administratively prohibited, code 13);
- bfd – when specifying the given key, the removal of static route in case of next-hop unavailability is activated.
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- <VRF> – VRF name, set by the string of up to 31 characters.
- <SUBNET> – destination address, can be specified in the following formats:
- The addresses are defined as X:X:X:X::X where each part takes values in hexadecimal format [0..FFFF].
- <IPV6-ADDR/LEN> – IP address and mask of a subnet, defined as X:X:X:X::X/EE where each X part takes values in hexadecimal format [0..FFFF] and EE takes values of [1..128].
- <IPV6-ADDR> – client IPv6 address, defined as X:X:X:X::X where each part takes values in hexadecimal format [0..FFFF];
- resolve – when specifying the given parameter, gateway IPv6 address will be recursively calculated through the routing table. If the recursive calculation fails to find a gateway from a directly connected subnet, then this route will not be installed into the system;
- <IF> – an IP interface name specified in the form described in Section Types and naming order of router interfaces;
- blackhole – when specifying the command, the packets to this subnet will be removed by the device without sending notifications to a sender;
- unreachable – when specifying the command, the packets to this subnet will be removed by the device, a sender will receive in response ICMP Destination unreachable (Host unreachable, code 1);
- prohibit – when specifying the command, the packets to this subnet will be removed by the device, a sender will receive in response ICMP Destination unreachable (Communication administratively prohibited, code 13);
- <METRIC> – route metric, takes values of [0..255].
- bfd – when specifying the given key, the removal of static route in case of next-hop unavailability is activated.
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RIP is a distance-vector dynamic routing protocol that uses hop count as a routing metric. The maximum amount of hops allowed for RIP is 15. By default, each RIP router device transmits full routing table into the network every 30 seconds. RIP operates at 3rd level of TCP/IP stack via UDP port 520.
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Objective:
Configure RIP on the router device in order to exchange the routing information with neighboring routersdevices. The router/controller should advertise static routes and subnets 115.0.0.0/24, 14.0.0.0/24, 10.0.0.0/24. Routes should be advertised each 25 seconds.
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Step | Description | Command | Keys |
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1 | Configure OSFP precedence for the main routing table (optional). | esr(config)# ip protocols ospf preference <VALUE> | <VALUE> – protocol precedence, takes values in the range of [1..255]. Default value: 150. |
esr(config-vrf)# ip protocols ospf preference <VALUE> | |||
2 | Configure OSFP routing tables capacity (optional). | esr(config)# ip protocols ospf max-routes <VALUE> | <VALUE> – amount of OSPF routes in the routing table, takes values in the range of:
Default value for the global mode:
Default value for VRF: 0 |
esr(config)# ipv6 protocols ospf max-routes <VALUE> | |||
3 | Enable the output of OSPF neighbor state information (optional). | esr(config)# router ospf log-adjacency-changes | |
esr(config)# ipv6 router ospf log-adjacency-changes | |||
4 | Create IP subnets lists that will be used for further filtration of advertised and received IP routes (optional). | esr(config)# ip prefix-list <NAME> | <NAME> – name of a subnet list being configured, set by the string of up to 31 characters. |
esr(config)# ipv6 prefix-list <NAME> | |||
5 | Permit or deny the prefixes lists (optional). | esr(config-pl)# permit [ { object-group <OBJ-GROUP-NETWORK-NAME> | <ADDR/LEN> | <IPV6-ADDR/LEN> } ] [ { eq <LEN> | le <LEN> | ge <LEN> [ le <LEN> ] } ] | <OBJ-GROUP-NETWORK-NAME> – IPv4/IPv6 addresses profile name, set by the string of up to 31 characters; <ADDR> – IP address, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]; <LEN> – prefix length, takes values of [1..32] in prefix IP lists;
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esr(config-pl)# deny [ { object-group <OBJ-GROUP-NETWORK-NAME> | <ADDR/LEN > | <IPV6-ADDR/LEN> } ] [ { eq <LEN> | le <LEN> | ge <LEN> [ le <LEN> ] } ] | |||
6 | Add OSFP process to the system and switch to the OSFP process parameters configuration mode. | esr(config)# router ospf <ID> [vrf <VRF>] | <ID> – stand alone system number, takes values of [1..65535]. <VRF> – VRF instance name, set by the string of up to 31 characters, within which the routing protocol will operate. |
esr(config)# ipv6 router ospf <ID> [vrf <VRF>] | |||
7 | Set router identifier for the given OSFP process. | esr(config-ospf)# router-id <ID> | <ID> – router/controller identifier, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. <IF> – interface specified in form given in the Types and naming procedure of router interfaces section of CLI command reference guide. <TUN> – tunnel name specified in form given in the Types and naming procedure of router tunnels section. |
esr(config-ipv6-ospf)# router-id <ID> | |||
8 | Define OSFP process routes precedence. | esr(config-ospf)# preference <VALUE> | <VALUE> – OSFP process routes precedence, takes values in the range of [1..255]. |
esr(config-ipv6-ospf)# preference <VALUE> | |||
9 | Define maximum number of equivalent routes (optional). | esr(config-ospf)# maximum-path <PATHS> | <PATHS> – number of equivalent routes to the target, takes values of [1..32]. Default value: 16. |
esr(config-ipv6-ospf)# maximum-path <PATHS> | |||
10 | Enable compatibility with RFC 1583 (optional). | esr(config-ospf)# compatible rfc1583 | |
esr(config-ipv6-ospf)# compatible rfc1583 | |||
11 | Add subnets filtration in incoming or outgoing updates (optional). | esr(config-ospf)# prefix-list <PREFIX-LIST-NAME> { in | out } | <PREFIX-LIST-NAME> – name of a subnet list being configured, set by the string of up to 31 characters.
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esr(config-ipv6-ospf)# prefix-list <PREFIX-LIST-NAME> { in | out } | |||
12 | Enable advertising of routes received in an alternative way (optional). | esr(config-ospf)# redistribute static [ route-map <NAME> ] | <NAME> – name of the route map that will be used for advertised static routes filtration and modification, set by the string of up to 31 characters. |
esr(config-ipv6-ospf)# redistribute static [ route-map <NAME> ] | |||
esr(config-ospf)# redistribute connected [ route-map <NAME> ] | <NAME> – name of the route map that will be used for filtration and modification of advertised directly connected subnets, set by the string of up to 31 characters. | ||
esr(config-ipv6-ospf)# redistribute connected [ route-map <NAME> ] | |||
esr(config-ospf)# redistribute rip [ route-map <NAME> ] | <NAME> – name of the route map that will be used for advertised RIP routes filtration and modification, set by the string of up to 31 characters. | ||
esr(config-ospf)# redistribute bgp <AS> [ route-map <NAME> ] | <AS> – stand alone system number, takes values of [1..4294967295]. <NAME> – name of the route map that will be used for advertised BGP routes filtration and modification, set by the string of up to 31 characters. | ||
esr(config-ipv6-ospf)# redistribute bgp <AS> [ route-map <NAME> ] | |||
13 | Enable OSFP process. | esr(config-ospf)# enable | |
esr(config-ipv6-ospf)# enable | |||
14 | Create OSFP area and switch to the scope configuration mode. | esr(config-ospf)# area <AREA_ID> | <AREA_ID> – area identifier, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. |
esr(config-ipv6-ospf)# area <AREA_ID> | |||
15 | Enable subnets advertising (optional). | esr(config-ospf-area)# network <ADDR/LEN> | <ADDR/LEN> – subnet address, set in the following format: AAA.BBB.CCC.DDD/NN – network IP address with prefix mask, where AAA-DDD take values of [0..255] and EE takes values of [1..32]. |
esr(config-ipv6-ospf-area)# network <IPV6-ADDR/LEN> | <IPV6-ADDR/LEN> – IPv6 address and mask of a subnet, defined as X:X:X:X::X/EE where each X part takes values in hexadecimal format [0..FFFF] and EE takes values of [1..128]. | ||
16 | Specify the area type (optional). | esr(config-ospf-area)# area-type <TYPE> [ no-summary ] | <TYPE> – area type:
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esr(config-ipv6-ospf-area)# area-type <TYPE> [ no-summary ] | |||
17 | Enable the default route generation for NSSA area and its advertising as NSSA-LSA (optional). | esr(config-ospf-area)# default-information-originate | |
esr(config-ipv6-ospf-area)# default-information-originate | |||
18 | Enable the subnet summarization or hiding (optional). | esr(config-ospf-area)# summary-address <ADDR/LEN> { advertise | not-advertise } | <ADDR/LEN> – IP address and subnet mask, defined as AAA.BBB.CCC.DDD/EE where each part AAA-DDD takes values of [0..255] and EE takes values of [1..32];
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esr(config-ipv6-ospf-area)# summary-address <IPV6-ADDR/LEN> { advertise | not-advertise } | <IPV6-ADDR/LEN> – IPv6 address and mask of a subnet, defined as X:X:X:X::X/EE where each X part takes values in hexadecimal format [0..FFFF] and EE takes values of [1..128];
| ||
19 | Enable OSFP area. | esr(config-ospf-area)# enable | |
esr(config-ipv6-ospf-area)# enable | |||
20 | Establish a virtual connection between the main and remote areas having several areas between them (optional). | esr(config-ospf-area)# virtual-link <ID> | <ID> – identifier of the router/controller with which the virtual connection is established, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. |
esr(config-ipv6-ospf-area)# virtual-link <ID> | |||
21 | Set the time interval in seconds after which the router device re-sends a packet that has not received a delivery confirmation (for example, a DatabaseDescription packet or LinkStateRequest packets) (optional). | esr(config-ospf- vlink)# restransmit-interval <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 5 seconds. |
esr(config-ipv6-ospf- vlink)# restransmit-interval <TIME> | |||
22 | Set the time interval in seconds after which the router device sends the next hello packet (optional). | esr(config-ospf- vlink)# hello-interval <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 10 seconds. |
esr(config-ipv6-ospf- vlink)# hello-interval <TIME> | |||
23 | Set the time interval in seconds after which the neighbor is considered to be idle. This interval should be a multiple of the ‘hello interval’ value. | esr(config-ospf- vlink)# dead-interval <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 40 seconds. |
esr(config-ipv6-ospf- vlink)# dead-interval <TIME> | |||
24 | Set the time interval in seconds after which the router device selects DR in the network (optional). | esr(config-ospf- vlink)# wait-interval <TIME> | <TIME> – time in seconds, takes values of [1..65535]. |
esr(config-ipv6-ospf- vlink)# wait-interval <TIME> | |||
25 | Define authentication algorithm (optional). | esr(config-ospf- vlink)# authentication algorithm <ALGORITHM> | <ALGORITHM> – authentication algorithm:
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26 | Set the password for neighbor authentication (optional). | esr(config-ospf- vlink)# authentication key ascii-text { <CLEAR-TEXT> | encrypted <ENCRYPTED-TEXT> } | <CLEAR-TEXT> – password, set by the string of 8 to 16 characters. <ENCRYPTED-TEXT> – encrypted password of 8 to 16 bytes (from 16 to 32 characters) in hexadecimal format (0xYYYY ...) or (YYYY ...). |
27 | Specify the list of passwords for authentication via md5 hashing algorithm. | esr(config-ospf- vlink)# authentication key chain <KEYCHAIN> | <KEYCHAIN> – key list identifier, set by the string of up to 16 characters. |
28 | Enable virtual connection. | esr(config-ospf- vlink)# enable | |
29 | Switch to the interface/tunnel/network bridge configuration mode. | esr(config)# interface <IF-TYPE><IF-NUM> | <IF-TYPE> – interface type; <IF-NUM> – F/S/P – F frame (1), S – slot (0), P – port. |
esr(config)# tunnel <TUN-TYPE><TUN-NUM> | <TUN-TYPE> – tunnel type; <TUN-NUM> – tunnel number. | ||
esr(config)# bridge <BR-NUM> | <BR-NUM> – bridge number. | ||
30 | Define the interface / tunnel / network bridge inherence to a specific OSPF process. | esr(config-if-gi)# ip ospf instance <ID> | <ID> – process number, takes values of [1..65535]. |
esr(config-if-gi)# ipv6 ospf instance <ID> | |||
31 | Define the interface inherence to a specific OSPF process area. | esr(config-if-gi)# ip ospf area <AREA_ID> | <AREA_ID> – area identifier, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. |
esr(config-if-gi)# ipv6 ospf area <AREA_ID> | |||
32 | Enable the routing via OSFP on the interface. | esr(config-if-gi)# ip ospf | |
esr(config-if-gi)# ipv6 ospf | |||
33 | Enable the mode in which the OSPF process will ignore MTU interface value in incoming Database Description packets (optional). | esr(config-if-gi)# ip ospf mtu-ignore | |
esr(config-if-gi)# ipv6 ospf mtu-ignore | |||
34 | Specify OSFP authentication algorithm (optional). | esr(config-if-gi)# ip ospf authentication algorithm <ALGORITHM> | <ALGORITHM> – authentication algorithm:
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35 | Set the password for OSPF neighbor authentication when transmitting an unencrypted password (optional). | esr(config-if-gi)# ip ospf authentication key ascii-text { <CLEAR-TEXT> | encrypted <ENCRYPTED-TEXT> } | <CLEAR-TEXT> – password, set by the string of 8 to 16 characters; <ENCRYPTED-TEXT> – encrypted password of 8 to 16 bytes (from 16 to 32 characters) in hexadecimal format (0xYYYY ...) or (YYYY ...). |
36 | Specify the list of passwords for neighbor authentication via md5 hashing algorithm (optional). | esr(config-if-gi)# ip ospf authentication key-chain <KEYCHAIN> | <KEYCHAIN> – key list identifier, set by the string of up to 16 characters. |
37 | Set the time interval in seconds after which the router device selects DR in the network (optional). | esr(config-if-gi)# ip ospf wait-interval <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 40 seconds. |
esr(config-if-gi)# ipv6 ospf wait-interval <TIME> | |||
38 | Set the time interval in seconds after which the router device re-sends a packet that has not received a delivery confirmation (for example, a DatabaseDescription packet or LinkStateRequest packets. Optional). | esr(config-if-gi)# ip ospf restransmit-interval <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 5 seconds. |
esr(config-if-gi)# ipv6 ospf restransmit-interval <TIME> | |||
39 | Set the time interval in seconds after which the router device sends the next hello packet (optional). | esr(config-if-gi)# ip ospf hello-interval <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 10 seconds. |
esr(config-if-gi)# ipv6 ospf hello-interval <TIME> | |||
40 | Set the time interval in seconds after which the neighbor is considered to be idle (optional). This interval should be a multiple of the ‘hello interval’ value. | esr(config-if-gi)# ip dead-interval <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 40 seconds. |
esr(config-if-gi)# ipv6 dead-interval <TIME> | |||
41 | Set the time interval during which NBMA interface waits before sending a HELLO packet to a neighbor, even if the neighbor is inactive (optional). | esr(config-if-gi)# ip poll-interval <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 120 seconds. |
esr(config-if-gi)# ipv6 poll-interval <TIME> | |||
42 | Set static IP address of a neighbor to establish a relation in NMBA and P2MP (Point-to-MultiPoint) networks (optional). | esr(config-if-gi)# ip ospf neighbor <IP> [ eligible ] | <IP> – neighbor’s IP address, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. eligible – optional parameter, allows the device to take part in DR selection process in NMBA networks. The interface priority should be greater than zero. |
esr(config-if-gi)# ip ospf neighbor <IP> [ eligible ] | <IPV6-ADDR> – neighbor’s IPv6 address, defined as X:X:X:X::X where each part takes values in hexadecimal format [0..FFFF]; eligible – optional parameter, allows the device to take part in DR selection process in NMBA networks. The interface priority should be greater than zero. | ||
43 | Define the network type for OSPF neighborhood establishment (optional). | esr(config-if-gi)# ip ospf network <TYPE> | <TYPE> – network type:
Default value: broadcast. |
esr(config-if-gi)# ipv6 ospf network <TYPE> | |||
44 | Set the router device priority that is used for DR and BDR selection (optional). | esr(config-if-gi)# ip ospf priority <VALUE> | <VALUE> – interface priority, takes values of [1..65535]. Default value: 120. |
esr(config-if-gi)# ipv6 ospf priority <VALUE> | |||
45 | Set the metric size on the interface or tunnel (optional). | esr(config-if-gi)# ip ospf cost <VALUE> | <VALUE> – metric size, takes values of [0..32767]. Default value: 150. |
esr(config-if-gi)# ipv6 ospf cost <VALUE> | |||
46 | Enable BFD protocol for OSPF protocol. | esr(config-if-gi)# ip ospf bfd-enable | |
esr(config-if-gi)# ipv6 ospf bfd-enable |
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Configure OSPF protocol on the router device in order to exchange the routing information with neighboring routersdevices. The router device should be in 1.1.1.1 identifier area and announce routes received via RIP.
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esr(config-ospf)# enable esr(config-ospf)# exit |
neighboring routers Neighboring devices are connected to gi1/0/5 and gi1/0/15 interfaces. To establish the neighboring with other routersdevices, map them to OSPF process and the area. Next, enable OSPF routing for the interface.
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Change area type to stub. For each router R2 and R3 from 1.1.1.1 area, execute the following command in the configuration mode:
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Pre-configure OSPF protocol and IP addresses on interfaces according to the network structure shown in figure above.
For R1 routerdevice, proceed to 1.1.1.1 area configuration mode:
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esr(config-ospf-area)# virtual-link 0.0.0.3 esr(config-ospf-vlink)# enable |
For R3 router, proceed to 1.1.1.1 area configuration mode:
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BGP protocol is designed to exchange subnet reachability information among autonomous systems (AS), i.e. router device groups united under a single technical control that uses interdomain routing protocol for defining packet delivery routes to other AS. Transmitted information includes a list of AS that are accessible through this system. Selection of the optimal routes is based on effective rules for the network.
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Step | Description | Command | Keys |
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1 | Configure BGP precedence for the main routing table (optional). | esr(config)# ip protocols bgp preference <VALUE> | <VALUE> – protocol precedence, takes values in the range of [1..255]. Default value: BGP (170). |
2 | Configure the BGP routing table capacity (not required when using the global routing table). | esr(config)# ip protocols bgp max-routes <VALUE> | <VALUE> – amount of BGP routes in the routing table, takes values in the range of:
The default value for the global routing table:
Default value for VRF: 0. |
esr(config)# ipv6 protocols bgp max-routes <VALUE> | |||
esr(config-vrf)# ip protocols bgp max-routes <VALUE> | |||
esr(config-vrf)# ipv6 protocols bgp max-routes <VALUE> | |||
3 | Enable the output of BGP neighbor state information (optional). | esr(config)# router bgp log-neighbor-changes | |
esr(config)# ipv6 router bgp log-neighbor-changes | |||
4 | Enable ECMP and define the maximum amount of equal routes to a destination point. | esr(config)# router bgp maximum-paths <VALUE> | <VALUE> – amount of valid equal routes to the target, takes the values of [1..16]. |
5 | Select the filtering method for the information transmitted between routers (mandatory when configuring eBGP to announce subnets). | ||
If route-map-based filtering method is selected, create a list of rules that will be used to filter the advertised and received IP routes in the future. | esr(config)# route-map <NAME> | <NAME> – configured routing rule name, set by the string of up to 31 characters. | |
Create rule | (config-route-map)# rule <ORDER> | <ORDER> – rule number, takes values of [1..10000]. | |
Define the list of subnets affected by the rule. | esr(config-route-map-rule)#match ip address { <ADDR/LEN> | object-group <OBJ-GRP-NETNAME> } [ { eq <LEN> | le <LEN> | ge <LEN 1> [ le <LEN 2> ] } ] | <ADDR/LEN> – IP address and subnet mask, in the format of. AAA.BBB.CCC.DDD/EE – network IP address with prefix mask, where AAA-DDD take values of [0..255] and EE takes values of [1..32]; <IPV6-ADDR/LEN> – IPv6 address and subnet mask, in the format of: X:X:X:X::X/EE, where each X part takes values in hexadecimal format [0..FFFF] and EE takes values of [1..128]; <OBJ-GRP-NETNAME> – IP addresses profile name, set by the string of up to 31 characters*; <LEN>, <LEN 1>, <LEN 2> – prefix length, may take values [1..32] in prefix IP lists for IPv4 and [1..128] for IPv6; eq – when specifying the command, the prefix length mast match the specified one; le – when specifying the command, the prefix length mast be less than or match the specified one; ge – when specifying the command, the prefix length mast be more than or match the specified one; ge <LEN 1> le <LEN 2> – When specifying a command, the prefix length must be greater than or equal to <LEN> but less than or equal to <LEN1>. * When using object-group filtering, they must be created in advance. | |
esr(config-route-map-rule)#match ipv6 address { <IPV6-ADDR/LEN> | object-group <OBJ-GRP-NETNAME> } [ { eq <LEN> | le <LEN> | ge <LEN 1> [ le <LEN 2> ] } ] | |||
Permit or deny action for the specified subnets in the rule. | esr(config-route-map-rule)# action {deny | permit} | ||
If prefix-list-based filtering method is selected, create a list of IP networks that will be used to filter the advertised and received IP routes in the future. | esr(config)# ip prefix-list <NAME> | <NAME> – name of a subnet list being configured, set by the string of up to 31 characters. | |
esr(config)# ipv6 prefix-list <NAME> | |||
Permit or deny the prefixes lists. | esr(config-pl)# permit { <ADDR/LEN> | object-group <OBJ-GRP-NETNAME>} [ { eq <LEN> | le <LEN> | ge <LEN 1> [ le <LEN 2> ] } ] | <ADDR/LEN> – IP address and subnet mask, in the format of. AAA.BBB.CCC.DDD/EE – network IP address with prefix mask, where AAA-DDD take values of [0..255] and EE takes values of [1..32]; <IPV6-ADDR/LEN> – IPv6 address and subnet mask, in the format of: X:X:X:X::X/EE, where each X part takes values in hexadecimal format [0..FFFF] and EE takes values of [1..128]; <OBJ-GRP-NETNAME> – IP addresses profile name, set by the string of up to 31 characters*; <LEN>, <LEN 1>, <LEN 2> – prefix length, may take values [1..32] in prefix IP lists for IPv4 and [1..128] for IPv6; eq – when specifying the command, the prefix length mast match the specified one; le – when specifying the command, the prefix length mast be less than or match the specified one; ge – when specifying the command, the prefix length mast be more than or match the specified one; ge <LEN 1> le <LEN 2> – When specifying a command, the prefix length must be greater than or equal to <LEN> but less than or equal to <LEN1>. * When using object-group filtering, they must be created in advance. | |
esr(config-pl)# deny {<ADDR/LEN> | object-group <OBJ-GRP-NETNAME>} [ { eq <LEN> | le <LEN> | ge <LEN 1> [ le <LEN 2> ] } ] | |||
esr(config-ipv6-pl)# permit { <IPV6-ADDR/LEN> | object-group <OBJ-GRP-NETNAME>} [ { eq <LEN> | le <LEN> | ge <LEN 1> [ le <LEN 2> ] } ] | |||
esr(config-ipv6-pl)# deny {<IPV6-ADDR/LEN> | object-group <OBJ-GRP-NETNAME> } [ { eq <LEN> | le <LEN> | ge <LEN 1> [ le <LEN 2> ] } ] | |||
6 | Add BGP process to the system and switch to the BGP process parameters configuration mode. | esr(config)# router bgp <AS> | <AS> – stand alone system number, takes values of [1..4294967295]. |
7 | Set the router identifier. | esr(config-bgp)# router-id { <ID> | <IF> | <TUN> } | <ID> – router identifier, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. <IF> – interface specified in form given in the Types and naming procedure of router interfaces section of CLI command reference guide. <TUN> – tunnel name specified in form given in the Types and naming procedure of router tunnels section. |
8 | Set the Route-Reflector identifier of the cluster to which the router BGP process belongs (if necessary). | esr(config-bgp)# cluster-id <ID> | <ID> – Route-Reflector cluster identifier, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. |
9 | Enable generation and sending of a default route, if the default route is in the FIB routing table (optional). | esr(config-bgp)# default-information-originate | |
10 | Set the time interval after which the connection with the opposing party is checked (optional). | esr(config-bgp-af)# timers keepalive <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 60 seconds. |
11 | Set time interval after which the opposing party is considered to be unavailable (optional). | esr(config-bgp-af)# timers holdtime <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 180 seconds. |
12 | Set the time of minimum and maximum delay during which it is prohibited to establish a connection in order to prevent frequent disconnections (optional). | esr(config-bgp-af)# timers error-wait <TIME1> <TIME2> | <TIME1> – minimum delay time in seconds, takes values of [1..65535]. <TIME2> – maximum delay time in seconds, takes values of [1..65535]. |
13 | Define the global algorithm of neighbor authentication (if necessary). | esr(config-bgp)# authentication algorithm <ALGORITHM> | <ALGORITHM> – encryption algorithm:
Default value: encryption is not used. |
14 | Set a global password for authentication with neighbors (used in conjunction with 'authentication algorithm'). | esr(config-bgp)# authentication key ascii-text { <CLEAR-TEXT> | encrypted <ENCRYPTED-TEXT> } | <CLEAR-TEXT> – password, set by the string of 8 to 16 characters; <ENCRYPTED-TEXT> – encrypted password of 8 to 16 bytes (from 16 to 32 characters) in hexadecimal format (0xYYYY ...) or (YYYY ...). |
15 | Enable BGP process. | esr(config-bgp)# enable | |
16 | Define the type of configured routing information and switch to this configuration mode. | esr(config-bgp)# address-family { ipv4 | ipv6 } unicast | ipv 4 – IPv4 family; ipv 6 – IPv6 family; |
17 | Enable route advertising by BGP process obtained alternatively (if necessary). | esr(config-bgp-af)# redistribute static [ route-map <NAME> ] | <NAME> – name of the route map that will be used for advertised static routes filtration and modification, set by the string of up to 31 characters. |
esr(config-bgp-af)# redistribute connected [ route-map <NAME> ] | <NAME> – name of the route map that will be used for filtration and modification of advertised directly connected subnets, set by the string of up to 31 characters. | ||
esr(config-bgp-af)# redistribute rip [ route-map <NAME> ] | <NAME> – name of the route map that will be used for advertised RIP routes filtration and modification, set by the string of up to 31 characters. | ||
esr(config-bgp-af)# redistribute ospf <ID> <ROUTE-TYPE 1> [<ROUTE-TYPE 2>] [<ROUTE-TYPE 3>] [<ROUTE-TYPE 4>] [ route-map <NAME> ] | <ID> – process number, takes values of {1..65535}; <ROUTE-TYPE> – route type:
<NAME> – name of the route map that will be used for advertised OSFP routes filtration and modification, set by the string of up to 31 characters. | ||
esr(config-bgp-af)# redistribute bgp <AS> [ route-map <NAME> ] | <AS> – stand alone system number, takes values of [1..4294967295]. <NAME> – name of the route map that will be used for advertised BGP routes filtration and modification, set by the string of up to 31 characters. | ||
18 | Enable subnets advertising. | esr(config-bgp-af)# network <ADDR/LEN> | <ADDR/LEN> – subnet address, set in one of the following formats:
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19 | Exit global BGP process route information advertisement configuration mode. | esr(config-bgp-af)# exit | |
20 | Add BGP neighbor and switch to the BGP process parameters configuration mode. | esr(config-bgp)# neighbor <ADDR>|<IPV6-ADDR> | <ADDR> – neighbor’s IP address, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]; <IPV6-ADDR> – client IPv6 address, defined as X:X:X:X::X where each part takes values in hexadecimal format [0..FFFF]. |
21 | Specify neighbor description (optional). | esr(config-bgp-neighbor)# description <DESCRIPTION> | <DESCRIPTION> – neighbor description, set by the string of up to 255 characters. |
22 | Set the time interval after which the connection with the opposing party is checked (optional). | esr(config-bgp-neighbor)# timers keepalive <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 60 seconds. |
23 | Set time interval after which the opposing party is considered to be unavailable (optional). | esr(config-bgp- neighbor)# timers holdtime <TIME> | <TIME> – time in seconds, takes values of [1..65535]. Default value: 180 seconds. |
24 | Set the time of minimum and maximum delay during which it is prohibited to establish a connection in order to prevent frequent disconnections (optional). | esr(config-bgp-af)# timers error-wait <TIME1> <TIME2> | <TIME1> – minimum delay time in seconds, takes values of [1..65535]. <TIME2> – maximum delay time in seconds, takes values of [1..65535]. Default value: 60 and 300 seconds |
25 | Set the number of BGP neighbor stand alone system. | esr(config-bgp-neighbor)# remote-as <AS> | <AS> – stand alone system number, takes values of [1..4294967295]. |
26 | Allow connections to neighbors that are located not in directly connected subnets (optional). | esr(config-bgp-neighbor)# ebgp-multihop <NUM> | <NUM> – maximum amount of hops when installing EBGP (used for TTL). |
27 | Specify BGP neighbor as a Route-Reflector client (optional). | esr(config-bgp-neighbor)# route-reflector-client | |
28 | Set IP/IPv6 router address that will be used as source IP/IPv6 address in transmitted BGP route information updates (optional). | esr(config-bgp-neighbor)# update-source { <ADDR> | <IPV6-ADDR> } | <ADDR> – source IP address, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]; <IPV6-ADDR> – source IPv6 address, defined as X:X:X:X::X where each part takes values in hexadecimal format [0..FFFF]. <IF> – interface specified in form given in the Types and naming procedure of router interfaces section of CLI command reference guide. <TUN> – tunnel name specified in form given in the Types and naming procedure of router tunnels section. |
29 | Enable the mode in which the reception of routes in the BGP attribute, AS Path of which includes the numbers of process stand alone system, is allowed (optional). | esr(config-bgp-neighbor)# allow-local-as <NUMBER> | <NUMBER> – threshold amount of instances of autonomous system number in the AS Path attribute at which the route will be accepted, the range of acceptable values [1..10]. |
30 | Enable the BFD protocol on the configured BGP neighbor (optional, used in conjunction with the update-source parameter). | esr(config-bgp-neighbor)# bfd-enable | |
31 | Specify neighbor authentication algorithm (optional). | esr(config-bgp-neighbor)# authentication algorithm <ALGORITHM> | <ALGORITHM> – encryption algorithm: md5 – password is encrypted by md5 algorithm. |
32 | Set the password for neighbor authentication (optional). | esr(config-bgp-neighbor)# authentication key ascii-text { <CLEAR-TEXT> | encrypted <ENCRYPTED-TEXT> } | <CLEAR-TEXT> – password, set by the string of 8 to 16 characters; <ENCRYPTED-TEXT> – encrypted password of 8 to 16 bytes (from 16 to 32 characters) in hexadecimal format (0xYYYY ...) or (YYYY ...). |
33 | Make neighborhood active. | esr(config-bgp-neighbor)# enable | |
34 | Define the type of neighbor configured routing information and switch to this configuration mode. | esr(config-bgp-neighbor)# address-family { ipv4 | ipv6 | vpnv4 } unicast | ipv 4 – IPv4 family; ipv 6 – IPv6 family; vpnv4 – VPNv4 family. |
35 | If prefix list filtering mode is selected, add subnet filtering in incoming or outgoing updates ( Mandatory when configuring eBGP for subnet advertisement). | esr(config-bgp-neighbor-af)# prefix-list <PREFIX-LIST-NAME> { in | out } | <PREFIX-LIST-NAME> – name of a subnet list being configured, set by the string of up to 31 characters. in – incoming routes filtering; out – outgoing routes filtering. |
36 | Set the mode in which the default route is always sent to the BGP neighbor in the update along with other routes (optional, none for vpnv4). | esr(config-bgp-neighbor-af)# default-originate | |
37 | Set the mode in which all updates are sent to BGP neighbor with the IP address of a local router outgoing interface as the next-hop (optional, none for vpnv4). | esr(config-bgp-neighbor-af)# next-hop-self | |
38 | Define the precedence of the routes received from a neighbor (optional). | esr(config-bgp-neighbor-af)# preference <VALUE> | <VALUE> – neighbor routes precedence, takes values in the range of [1..255]. Default value: 170. |
39 | Set the mode in which private numbers of autonomous systems are removed from the AS Path routes BGP attribute before sending an update (in accordance with RFC 6996) (optional, none for vpnv4). | esr(config-bgp-neighbor-af)# remove-private-as [ { all | nearest | replace } ] | all – remove all private AS number from AS-path; nearest – replace the nearest private AS in the AS-path with a nearby public AS; replace – replace all private AS numbers with the number of the current BGP process. Default value: all. |
40 | Enable routing information exchange. | esr(config-bgp-neighbor-af)# enable |
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BFD (Bidirectional Forwarding Detection) is a protocol operating over other protocols and allowing to reduce the problem detection time to 50 msec. BFD is two-party protocol, it requires the configuration of both routers or controllers (both routers/controllers generate BFD packets and respond to each other).
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Step | Description | Command | Keys |
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1 | Create a route map for IP routes filtering and modification. | esr(config)# route-map <NAME> | <NAME> – router map name, set by the string of up to 31 characters. |
2 | Create a route map rule. | esr(config-route-map)# rule <ORDER> | <ORDER> – rule number, takes values of [1..10000]. |
3 | Specify the action that should be applied for routing information. | esr(config-route-map-rule)# action <ACT> | <ACT> – allocated action:
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4 | Set BGPAS-Path attribute value in the route for which the rule should work (optional). | esr(config-route-map-rule)# match as-path [begin | end | contain] <AS-PATH> | <AS-PATH> – list of stand alone system numbers, defined as AS,AS,AS, takes values of [1..4294967295]. Optional parameters:
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5 | Set BGPCommunity attribute value for which the rule should work (optional). | esr(config-route-map-rule)# match community <COMMUNITY-LIST> | <COMMUNITY-LIST> – community list, defined as AS:N,AS:N, takes values of [1..4294967295]. Up to 64 communities can be specified. |
6 | BGPExtendedCommunity attribute value for which the rule should work (optional). | esr(config-route-map-rule)# match extcommunity <EXTCOMMUNITY-LIST> | <EXTCOMMUNITY-LIST> – extcommunity list, defined as KIND:AS:N, KIND:AS:N, where KIND – extcommunity type:
N – extcommunity number, takes values of [1..65535]. |
7 | Set IP addresses profile including destination subnet values in the route (optional). | esr(config-route-map-rule)# match ip address object-group <OBJ-GROUP-NETWORK-NAME> | <OBJ-GROUP-NETWORK-NAME> – name of the IP addresses profile that includes destination subnets prefixes, set by the string of up to 31 characters. |
esr(config-route-map-rule)# match ipv6 address object-group <OBJ-GROUP-NETWORK-NAME> | |||
8 | Set IP addresses profile that includes BGPNext-Hop attribute value in the route for which the rule should work (optional). | esr(config-route-map-rule)# match ip next-hop object-group <OBJ-GROUP-NETWORK-NAME> | <OBJ-GROUP-NETWORK-NAME> – name of the IP addresses profile that includes destination subnets prefixes, set by the string of up to 31 characters. |
esr(config-route-map-rule)# match ipv6 next-hop object-group <OBJ-GROUP-NETWORK-NAME> | |||
9 | Set the profile that includes IP addresses of the router device having advertised the route for which the rule should work (optional). | esr(config-route-map-rule)# match ip route-source object-group <OBJ-GROUP-NETWORK-NAME> | <OBJ-GROUP-NETWORK-NAME> – name of the IP addresses profile that includes destination subnets prefixes, set by the string of up to 31 characters. |
esr(config-route-map-rule)# match ipv6 route-source object-group <OBJ-GROUP-NETWORK-NAME> | |||
10 | Specify ACL group for which the rule should work (optional). | esr(config-route-map-rule)# match access-group <NAME> | <NAME> – access control list name, set by the string of up to 31 characters. |
11 | Set BGP MED attribute value in the route for which the rule should work (optional). | esr(config-route-map-rule)# match metric bgp <METRIC> | <METRIC> – BGP MED attribute value, takes values in the range of [0..4294967295]. |
12 | Set OSPF Metric attribute value in the route for which the rule should work. | esr(config-route-map-rule)# match metric ospf <TYPE> <METRIC> | <TYPE> – OSPF Metric attribute type, takes values type-1 and type-2; <METRIC> – OSPF Metric attribute value, takes values in the range of [0..65535]. |
13 | Set RIP Metric attribute value in the route for which the rule should work. | esr(config-route-map-rule)# match metric rip <METRIC> | <METRIC> – RIP Metric attribute value, takes values in the range of [0..16]. |
14 | Set OSPF Tag attribute value in the route for which the rule should work. | esr(config-route-map-rule)# match tag ospf <TAG> | <TAG> – OSPF Tag attribute value, takes values in the range of [0..4294967295]. |
15 | Set RIP Tag attribute value in the route for which the rule should work. | esr(config-route-map-rule)# match tag rip <TAG> | <RIP> – RIP Tag attribute value, takes values in the range of [0..65535]. |
16 | Set BGP AS-Path attribute value that will be added to the beginning of AS-Path list (optional). | esr(config-route-map-rule)# action set as-path | <AS-PATH> – stand alone systems number list that will be added to the current value in the route. Set as AS, AS, AS, takes values of [1..4294967295]. <TCACK-ID> – vrrp-tracking identifier that provides the specified action execution. Changes in the range of [1..60]. |
17 | Set BGP Community attribute value that will be specified in the route (optional). | esr(config-route-map-rule)# action set community {COMMUNITY-LIST> | no-advertise | no-export } | <COMMUNITY-LIST> – community list, defined as AS:N,AS:N, where each part takes values of [1..65535].
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18 | Set BGP ExtCommunity attribute value that will be specified in the route (optional). | esr(config-route-map-rule)# action set extcommunity <EXTCOMMUNITY-LIST> | <EXTCOMMUNITY-LIST> – extcommunity list, defined as KIND:AS:N, KIND:AS:N, where KIND – extcommunity type:
N – extcommunity number, takes values of [1..65535]. |
19 | Specify BGP Next-Hop attribute that will be set in the route when advertising (optional). | esr(config-route-map-rule)# action set ip bgp-next-hop <ADDR> | <ADDR> – gateway IP address, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. |
esr(config-route-map-rule)# action set ipv6 bgp-next-hop <IPV6-ADDR> | <IPV6-ADDR> – gateway IPv6 address, defined as X:X:X:X::X where each part takes values in hexadecimal format [0..FFFF]. | ||
20 | Specify Next-Hop value that will be set in the route received by BGP (optional). | esr(config-route-map-rule)# action set ip next-hop {NEXTHOP> | blackhole | unreachable | prohibit} | <NEXTHOP> – gateway IP address, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255];
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esr(config-route-map-rule)# action set ipv6 next-hop <IPV6-NEXTHOP> | <IPV6-ADDR> – gateway IPv6 address, defined as X:X:X:X::X where each part takes values in hexadecimal format [0..FFFF]. | ||
21 | Specify BGP Local Preference attribute value that will be set in the route (optional). | esr(config-route-map-rule)# action set local-preference <PREFERENCE> | <PREFERENCE> – BGP Local Preference attribute value, takes values in the range of [0..255]. |
22 | Specify BGP Origin attribute value that will be set in the route (optional). | esr(config-route-map-rule)# action set origin <ORIGIN> | <ORIGIN> – BGP Origin attribute value:
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23 | Specify BGP MED value that will be set in the route (optional). | esr(config-route-map-rule)# action set metric bgp <METRIC> | <METRIC> – BGP MED attribute value, takes values in the range of [0..4294967295]. |
24 | Add filtration and modification of routes in incoming or outgoing directions. | esr(config-bgp-neighbor)# route-map <NAME><DIRECTION> | <NAME> – name of the route map having been configured; <DIRECTION> – direction:
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esr(config-ipv6-bgp-neighbor)# route-map <NAME><DIRECTION> |
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- Configure BGP with AS2500 on ESR router or WLC controller;
- Establish neighboring with AS20.
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Step | Description | Command | Keys |
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1 | Create an IS-IS process and switch to the parameters configuration mode of this process. | esr(config)# router isis <ID> [vrf <VRF>] | <ID> – process number, takes values of [1..65535]; <VRF> – VRF instance name, set by the string of up to 31 characters. |
2 | Set NET address. | esr(config-isis)# net {<NET>} | <NET> – NET address, format: ff[.ffff.ffff.ffff.ffff.ffff.ffff].ffff.ffff.ffff.00. |
3 | Enable IS-IS process. | esr(config-isis)# enable | |
4 | Set the authentication algorithm for the L2 layer (optional). | esr(config-isis)# authentication domain algorithm <ALGORITHM> | <ALGORITHM> – authentication algorithm:
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5 | Set the authentication password for the L2 layer (optional). | esr(config-isis)# authentication domain key ascii-text { <CLEAR-TEXT> | encrypted <ENCRYPTED-TEXT> } | <CLEAR-TEXT> – password, set by the string of 8 characters; <ENCRYPTED-TEXT> – encrypted password of 8 bytes (16 characters) in hexadecimal format (0xYYYY...) or (YYYY...). |
6 | Set a list of keys for authentication (optional). | esr(config-isis)# authentication domain key chain <KEYCHAIN> | <KEYCHAIN> – key list identifier, set by the string of up to 16 characters. |
7 | Select the authentication algorithm for the L1 layer (optional). | esr(config-isis)# authentication area algorithm <ALGORITHM> | <ALGORITHM> – authentication algorithm:
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8 | Set the authentication password for the L1 layer (optional). | esr(config-isis)# authentication area key ascii-text { <CLEAR-TEXT> | encrypted <ENCRYPTED-TEXT> } | <CLEAR-TEXT> – password, set by the string of 8 characters; <ENCRYPTED-TEXT> – encrypted password of 8 bytes (16 characters) in hexadecimal format (0xYYYY...) or (YYYY...). |
9 | Set a list of keys for authentication (optional). | esr(config-isis)# authentication area key chain <KEYCHAIN> | <KEYCHAIN> – key list identifier, set by the string of up to 16 characters. |
10 | Enable transmission of router/controller name to the LSP (optional). | esr(config-isis)# hostname dynamic | |
11 | Set the IS-IS process operating level (optional). | esr(config-isis)# is-type {<LEVEL>} | <LEVEL> – IS-IS protocol operation level:
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12 | Set the type of metric to be used in the IS-IS process (optional). | esr(config-isis)# metric-style { narrow | wide | transition } [<LEVEL>] | narrow — accepts and generates TLVs (on network reachability) of the old type; wide — accepts and generates TLVs (on network reachability) of the new type; transition — accepts and generates TLVs (on network reachability) of the new and old type; <LEVEL> – IS-IS protocol operation level:
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13 | Set the route priority for the specified IS-IS process (optional). | esr(config-isis)# preference {<VALUE>} | <VALUE> – may take values [1..255]. |
14 | Enable IS-IS operation with IPv4 and/or IPv6 addresses (optional). | esr(config-isis)# address-family { ipv4 | ipv6 } | ipv4 – IPv4 family; ipv6 – IPv6 family. |
15 | Set the update interval for own LSP (optional). | esr(config-isis)# lsp-refresh-interval { min | max } <TIME> [ <LEVEL> ] | min — minimum update/generation interval; max — maximum update/generation interval; <TIME> – time in seconds, takes values of [1..65535]; <LEVEL> – IS-IS protocol operation level:
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16 | Set the lifetime of own LSP (optional). | esr(config-isis)# max-lsp-lifetime <TIME> [<LEVEL>] | <TIME> – time in seconds, takes values of [1..65535]; <LEVEL> – IS-IS protocol operation level:
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17 | Set a timeout before the next SPF calculation (optional). | esr(config-isis)# spf-timeout <TIME> [<LEVEL>] | <TIME> – time in milliseconds, takes values of [1..10000]; <LEVEL> – IS-IS protocol operation level:
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18 | Enable advertising of routes received in an alternative way (optional). | esr(config-isis)# redistribute bgp <AS> [ route-map <NAME> ] [is-type <LEVEL>] | <AS> – stand alone system number, takes values of [1..4294967295]. <NAME> – name of the route map that will be used for advertised routes filtration and modification, set by the string of up to 31 characters; <LEVEL> – IS-IS protocol operation level:
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esr(config-isis)# redistribute ipv6 bgp <AS> [ route-map <NAME> ] [is-type <LEVEL>] | |||
esr(config-isis)# redistribute ospf <ID> <ROUTE-TYPE> [ route-map <NAME> ] [is-type <LEVEL>] | <ID> – process number, takes values of [1..65535]. <ROUTE-TYPE> – route type:
<NAME> – name of the route map that will be used for advertised OSFP routes filtration and modification, set by the string of up to 31 characters; <LEVEL> – IS-IS protocol operation level:
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esr(config-isis)# redistribute ipv6 ospf <ID> <ROUTE-TYPE> [ route-map <NAME> ] [is-type <LEVEL>] | |||
esr(config-isis)# redistribute isis <ID> <ROUTE-TYPE> [ route-map <NAME> ] [is-type <LEVEL>] | <ID> – process number, takes values of [1..65535]. <ROUTE-TYPE> – route type:
<NAME> – name of the route map that will be used for advertised IS-IS routes filtration and modification, set by the string of up to 31 characters; <LEVEL> – IS-IS protocol operation level:
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esr(config-isis)# redistribute rip [ route-map <NAME> ] [is-type <LEVEL>] | <NAME> – name of the route map that will be used for advertised RIP routes filtration and modification, set by the string of up to 31 characters; <LEVEL> – IS-IS protocol operation level:
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esr(config-isis)# redistribute static [ route-map <NAME> ] [is-type <LEVEL>] | <NAME> – name of the route map that will be used for advertised static routes filtration and modification, set by the string of up to 31 characters; <LEVEL> – IS-IS protocol operation level:
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esr(config-isis)# redistribute connected [ route-map <NAME> ] [is-type <LEVEL>] | <NAME> – name of the route map that will be used for advertised connected routes filtration and modification, set by the string of up to 31 characters; <LEVEL> – IS-IS protocol operation level:
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19 | Add subnets filtration in incoming or outgoing updates (optional). | esr(config-isis)# prefix-list { ipv6 <LIST_NAME> | <LIST_NAME> } {in|out} | <LIST-NAME> – name of a subnet list being configured, set by the string of up to 31 characters. in – incoming routes filtration; out – advertised routes filtration. |
20 | Add subnets filtration in incoming or outgoing updates (optional). | esr(config-isis)# route-map <NAME> {in|out} | <NAME> – name of the route map that will be used for advertised routes filtration and modification, set by the string of up to 31 characters. |
21 | Set a matching of interface to a specified IS-IS process. | esr(config-if-gi)# isis instance <ID> | <ID> – process number, takes values of [1..65535]. |
22 | Enable the IS-IS protocol on the interface. | esr(config-if-gi)# isis enable | |
23 | Enable the use of TLV#8 in hello packets (optional). | esr(config-if-gi)# isis hello-padding | |
24 | Set the priority when selecting DIS (optional). | esr(config-if-gi)# isis priority <VALUE> [<LEVEL>] | <VALUE> – number, may take values [0..127]; <LEVEL> – IS-IS protocol operation level:
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25 | Set the metric value for the interface (optional). | esr(config-if-gi)# isis metric <VALUE> [<LEVEL>] | <VALUE> – number, may take values [1..16777215]; <LEVEL> – IS-IS protocol operation level:
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26 | Set defines which routing layer on the interface the current IS-IS process will run on (optional). | esr(config-if-gi)# isis circuit-type {<LEVEL>} | <LEVEL> – IS-IS protocol operation level:
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27 | Set the interval for sending hello packets (optional). | esr(config-if-gi)# isis hello-interval <TIME> [<LEVEL>] | <TIME> – time in seconds, takes values of [1..65535]; <LEVEL> – IS-IS protocol operation level:
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28 | Set the multiplier for calculating and sending Hold Time (optional). | esr(config-if-gi)# isis hello-multiplier <VALUE> [<LEVEL>] | <VALUE> – number, may take values [3..1000]; <LEVEL> – IS-IS protocol operation level:
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29 | Set the interface to point-to-point IS-IS protocol mode (optional). | esr(config-if-gi)# isis network point-to-point | |
30 | Set the interval for generating and sending CSNP (optional). | esr(config-if-gi)# isis csnp-interval <TIME> [<LEVEL>] | <TIME> – time in seconds, takes values of [1..65535]; <LEVEL> – IS-IS protocol operation level:
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31 | Set the interval for generating and sending PSNP (optional). | esr(config-if-gi)# isis psnp-interval <TIME> [<LEVEL>] | <TIME> – time in seconds, takes values of [1..65535]; <LEVEL> – IS-IS protocol operation level:
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32 | Set the interval between LSP transmissions on the Broadcast network (optional). | esr(config-if-gi)# isis lsp-interval <TIME> [<LEVEL>] | <TIME> – time in milliseconds, takes values of [1-10000]; <LEVEL> – IS-IS protocol operation level:
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33 | Set the LSP re-distribution interval in the PtP network (optional). | esr(config-if-gi)# isis lsp-retransmit-interval <TIME> [<LEVEL>] | <TIME> – time in seconds, takes values of [1..65535]; <LEVEL> – IS-IS protocol operation level:
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34 | Set the authentication algorithm for the hello packets (optional). | esr(config-if-gi)# isis authentication algorithm <ALGORITHM> [<LEVEL>] | <ALGORITHM> – authentication algorithm:
<LEVEL> – IS-IS protocol operation level:
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35 | Set the password for hello packet authentication (optional). | esr(config-if-gi)# isis authentication key ascii-text { <CLEAR-TEXT> | encrypted <ENCRYPTED-TEXT> } [<LEVEL>] | <CLEAR-TEXT> – password, set by the string of 8 characters; <ENCRYPTED-TEXT> – encrypted password of 8 bytes (16 characters) in hexadecimal format (0xYYYY ...) or (YYYY ...); <LEVEL> – IS-IS protocol operation level:
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36 | Set the key list for hello packet authentication (optional). | esr(config-if-gi)# isis authentication key chain <KEYCHAIN> [<LEVEL>] | <KEYCHAIN> – key list identifier, set by the string of up to 16 characters; <LEVEL> – IS-IS protocol operation level:
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Configure the IS-IS protocol on routers devices to exchange routing information with neighbors. Router ESR1 will be L1-only, ESR2 will be L1/L2, ESR3 will be L2-only, which will also be in another area.
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Блок кода |
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ESR2# show isis neighbors IS-IS 2 IS-IS Level 1 Neighbors System ID Hostname Interface State Holdtime SNPA 1111.1111.1111 ESR1 gi1/0/2 Up 25 a8f9.4baa.1d42 IS-IS Level 2 Neighbors System ID Hostname Interface State Holdtime SNPA 3333.3333.3333 ESR3 gi1/0/1 Up 8 a8f9.4bab.813a |
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