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Step | Description | Command | Keys |
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1 | In the context of MPLS parameters configuration, specify the interfaces involved in the MPLS switching process | esr(config-mpls)# forwarding interface { <IF> | <TUN> } | <IF> – an interface's 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;. |
2 | Specify the router-id for LDP (not necessary if transport-address is specified). | esr(config-ldp)# router-id <ID> | <ID> – router identifier, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. |
3 | In the context of the address family ipv4 settings, specify transport-address (not necessary if router-id is specified). | esr(config-ldp-af-ipv4)# transport-address <ADDR> | <ADDR> – defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. |
4 | In the context of the address family ipv4 settings, specify interfaces for enabling LDP process. | esr(config-ldp-af-ipv4)# interface { <IF> | <TUN> } | <IF> – an interface's 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. |
5 | Enable LDP process. | esr(config-ldp)# enable | |
6 | Enable explicit-null functionality (optional). | esr(config-ldp)# egress-label-type explicit-null | |
7 | In the LDP neighbor configuration mode, set the password with the password command (optional). | esr(config-ldp-neig)# password {<TEXT> | ENCRYPTED-TEXT>} | <CLEAR-TEXT> – password, sets by string of [8..16] characters; <ENCRYPTED-TEXT> – encrypted password of [8..16] bytes ([16..32] characters) in hexadecimal format (0xYYYY...) or (YYYY...). |
The following functionality is also available as part of the LDP configuration:
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Step | Description | Command | Keys |
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1 | Configure the LDP (see section LDP configuration). | ||
2 | Create pw-class in the system and switch to the pw-class configuration mode. | esr(config-l2vpn)# pw-class <WORD> | <WORD> — pw-class name [1..31] characters long. |
3 | Add a description for pw-class (optional). | esr(config-l2vpn-pw-class)# description <LINE> | <LINE> – description. Set by the string [1..255] characters long. |
4 | Set the MTU value for the pseudo-wire included in the pw-class (optional). | esr(config-l2vpn-pw-class)# encapsulation | <MTU> — MTU value, takes values in the range of [552..10000] Default value: 1500. |
5 | Disable status-tlv messaging (optional). | esr(config-l2vpn-pw-class)# encapsulation | Default value: status-tlv enable |
6 | Create p2p-class in the system and switch to the p2p-class configuration mode. | esr(config-l2vpn)# p2p <NAME> | <NAME> — name of the p2p service, set by the string of up to 31 characters. |
7 | Specify Attached Circuit interface. | esr(config-l2vpn-p2p)# interface | <IF> – an interface's 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. |
8 | Enable p2p tunnel. | esr(config-l2vpn-p2p)# enable | |
9 | Specify transport mode (optional). | esr(config-l2vpn-p2p)# transport-mode | <ethernet> — mode in which the 802.1Q tag is removed from the header when entering pseudo-wire; <vlan> — mode in which the 802.1Q tag can be saved when transmitted over pseudo-wire. Default value: ethernet. |
10 | Create a pseudo-wire and switch to its parameters configuration mode. | esr(config-l2vpn-p2p)# pw <PW_ID> <LSR_ID> | <PW_ID> — psewdowire identifier, specified in the range [1..4294967295]. <LSR_ID> — identifier of LSR to which pseudo-wire is built, specified as AAA.BBB.CCC.DDD, where each part takes values [0..255]. |
11 | Add a description for pseudo-wire (optional). | esr(config-l2vpn-pw)# description <LINE> | <LINE> – description. Set by the string [1..255] characters long. |
12 | Set pw-class for pseudo-wire. | esr(config-l2vpn-pw)# pw-class <WORD> | <WORD> — pw-class name [1..31] characters long. |
13 | Set the LSR address to which the pseudo-wire is set (optional if the neighbor address is the same as the LSR_ID). | esr(config-l2vpn-pw)# neighbor-address <ADDR> | <ADDR> – router IP address, defined as AAA.BBB.CCC.DDD where each part takes values of [0..255]. |
14 | Enable pseudo-wire. | esr(config-l2vpn-pw)# enable | |
If it is necessary to change the default settings for a targeted LDP session, see section Configuring session parameters in targeted-LDP. |
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Примечание |
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When configuring MTU on a tunnel, consider the following:
Approximate packet structure is given in figure below: |
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