...
| Блок кода |
|---|
0/ME5100revX:R17-246# show bfd neighbors ipv4 10.0.0.42
Wed Jul 19 14:57:16 2023
Neighbor Address: 10.0.0.42
Local address: 10.0.0.41
Session state is up
Diagnostic: no-diagnostic
Interface: te0/0/5.954
Applied session profile:
LocalDiscriminator: 1
RemoteDiscriminator: 4
Registered protocols: rsvp ospf isis <============ Протоколы, использующие в работе статус BFD сессии
MinTxInt: 100 ms, MinRxInt: 100 ms, Multiplier: 3
Received MinTxInt: 10 ms, Received Multiplier: 4
Actual TxInt: 100 ms
Actual Detection Interval: 400 ms
Peer path is single-hop <============ Сценарий BFD сессии
BFD is hardware
Uptime: 01d05h23m
Elapsed time since the last change: 01w05d15h
Last received packet:
Version: 1
Diagnostic: no-diagnostic
State bit: up
Multiplier: 4
Length: 24
My Discriminator: 4
Your Discriminator: 1
Desired Min Tx Interval: 10 ms
Required Min Rx Interval: 10 ms
Required Min Echo Rx Interval: 0 ms
Flags:
Poll: 0
Final: 0
Control Plane Independent: 1
Authentication Present: 0
Demand: 0
Multipoint: 0
|
В примере выше показана single-hop сессия, ниже пример multi-hop сессии
| Блок кода |
|---|
ME5100revX:R17-246# show bfd neighbors ipv4 10.0.0.2
Wed Jul 19 15:59:43 2023
Neighbor Address: 10.0.0.2
Local address: 10.0.0.1
Session state is up
Diagnostic: no-diagnostic
Interface: te0/0/5.954
Applied session profile:
LocalDiscriminator: 5
RemoteDiscriminator: 5
Registered protocols: bgp <============ Протоколы, использующие в работе статус BFD сессии
MinTxInt: 300 ms, MinRxInt: 300 ms, Multiplier: 3
Received MinTxInt: 300 ms, Received Multiplier: 3
Actual TxInt: 300 ms
Actual Detection Interval: 900 ms
Peer path is multi-hop <============ Сценарий BFD сессии
BFD is hardware
Uptime: 01d06h25m
Elapsed time since the last change: 01w05d15h
Last received packet:
Version: 1
Diagnostic: no-diagnostic
State bit: up
Multiplier: 3
Length: 24
My Discriminator: 5
Your Discriminator: 5
Desired Min Tx Interval: 300 ms
Required Min Rx Interval: 300 ms
Required Min Echo Rx Interval: 0 ms
Flags:
Poll: 0
Final: 0
Control Plane Independent: 1
Authentication Present: 0
Demand: 0
Multipoint: 0
|
Дефолтные занчения множителя и таймеров отправки и приёма пакетов для single-hop сессий:
multiplier 3
rx-interval 100
tx-interval 100
для multi-hop сессий:
multiplier 3
rx-interval 300
tx-interval 300
Значения можно изменить глобально для всех сессий:
| Блок кода |
|---|
bfd
multi-hop multiplier 5
multi-hop rx-interval 200
multi-hop tx-interval 200
multiplier 2
rx-interval 50
tx-interval 50
exit |
Так же можно провести настройку каждой отдельной сессии:
| Блок кода |
|---|
bfd
session example
address-family ipv4 local-address 10.0.0.33
address-family ipv4 neighbor 10.0.0.34
multiplier 7
rx-interval 150
tx-interval 150
exit
exit |