Tweaking BFD for IS-IS

General questions
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1

Hi. I’m trying to enable BFD for IS-IS. Based on the docs here, it looks like I can only activate BFD for IS-IS on the interface but can’t change the interval etc unlike BGP.

I’ve looked at other vendor documentation e.g. Junos, looks like the interval for IS-IS can be tweaked. Any idea how to achieve this with VyOS?

Thank you.

2

Any idea on this guys?

3

I guess BFD for IS-IS is not highly supported in VyOS then.

4

These parameters are configurable, you can configure them globally or you can create a profile and attach it to the interfaces associated with the ISIS process:

 set protocols bfd profile TEST
Possible completions:
   echo-mode            Enables the echo transmission mode
 > interval             Configure timer intervals
   minimum-ttl          Expect packets with at least this TTL
   passive              Do not attempt to start sessions
   shutdown             Disable this peer

set protocols isis interface eth0 bfd profile XXXX
1 Like
5

I’m using VyOS 1.3.3. There doesn’t seems option for BFD profile.

# set protocols bfd
Possible completions:
+> peer         Configures a new BFD peer to listen and talk to

I also looked at the latest documentation, no BFD profile mentioned for VyOS 1.5.

I’ll test out 1.5 rolling release and check whether that option is there.

6

BFD profile works on 1.5 rolling. Thanks for pointing that out. By the way, is there any way to enable multipath on IS-IS?

7

ECMP is enabled by default in ISIS, but the path must be the same with different next-hops.

1 Like
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