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BFD for layer 2 network

BFD for layer 2 network

Created: Dec 27, 2019 11:52:36Latest reply: Dec 27, 2019 11:54:02 122 1 0 0

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Hello guys,

we are facing a problem about the monitoring the layer 2 link. I know that BFD could help to device to detect the link failure rapidly. But the BFD detects the link based on the IP address, what we need is the similar feature to monitor the layer 2 link.

For example, in the network below, it's a totally layer 2 network, we want to detect the link between sw3 and sw4.

topology

Do you guys have any suggestions? Thanks.

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chenhui Admin Created Dec 27, 2019 11:54:02

@user_3534491 hello,

actually, BFD could detect the layer 2 link. It's called multicast BFD.

Please refer the command below,

#

bfd t1 bind peer-ip default-ip interface Eth-Trunk1

discriminator local 100

discriminator remote 200

process-interface-status

commit

#

With these configuration, BFD will send detect packets to multicast address(224.0.0.107～224.0.0.250).

x
convention：

All Answers

chenhui Admin Created Dec 27, 2019 11:54:02

@user_3534491 hello,

actually, BFD could detect the layer 2 link. It's called multicast BFD.

Please refer the command below,

#

bfd t1 bind peer-ip default-ip interface Eth-Trunk1

discriminator local 100

discriminator remote 200

process-interface-status

commit

#

With these configuration, BFD will send detect packets to multicast address(224.0.0.107～224.0.0.250).

x
convention：

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