UNK community value - what does it mean?

General questions
,
1

While peering with two label-unicast nodes VyOS shows strange BGP information in “show bgp ipv4 vpn” output like this:

*> 10.185.0.2/32    10.221.34.104                          0 39374 64525 ?
    UN=10.221.34.104 EC{39374:1781297 **UNK:0**, 5 **UNK:128**, 0 **UNK:128**, 1} label=117114 type=bgp, subtype=0
*                   10.221.34.104                          0 39374 64525 ?
    UN=10.221.34.104 EC{39374:1781297 **UNK:0**, 5 **UNK:128**, 0 **UNK:128**, 1} label=117114 type=bgp, subtype=0

what does UNK mean and how do i troubleshoot the issue (if it exists). I guess it means UNKnown, but i don’t understand what is unknown and for whom it is unknown)
Thank you for help.

2

I think it cannot convert values to community
If I’m not mistaken this part of code

1 Like
3

it could be as viacheslav said a wrong behavior when it try to converting the values, regarding the devices that you are establish the bgp peers using bgp-lable-unicast family , is it a VyOS ? or another vendor like junniper.

4

they are NSN, former ALU77xx as far as i know.