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IS-IS on FRR - Is Anyone Running It?

>From your original post:

> 2020/03/21 03:12:36 ISIS: isis_send_pdu_bcast: sock_buff size 8192 is less than output pdu size 9014 on circuit em0
> 2020/03/21 03:12:36 ISIS: [EC 67108865] ISIS-Adj (1): Send L2 IIH on em0 failed

Why is PDU 9014, if you don't have padding? I wonder what FRR even
does at >1500B, I don't see '8870' in source code, so I don't think it
supports the EthernetII hack.

I wonder did someone verify the fix, to see what it even does? To me
it looks like what it'll do, it'll use what ever ethernetII matches
byte-size of frame, which is decidedly, not correct and would not
interoperate after 'fix'.