6 Apr
2020
6 Apr
'20
6:40 a.m.
On 6/Apr/20 12:31, Saku Ytti wrote:
So FRR should have an addition of LSP-MTU which should default to 1492B to avoid interoperability issues when it must generate large LSP PDU.
A couple of weeks ago, my Google-fu led to me some kind of "lsp-mtu" command for FRR. I tried it everywhere but it wasn't supported.
So better not make config where FRR needs to inject larger LSP PDU, might be more excitement than what people would like. Someone can test what happens when you redistribute more prefixes than can fit in 1492B LSP PDU and if those LSPs propagate to Ciscos and Juniper, blackhole or crash the network.
On these servers, I'm pushing only 2 routes into the IS-IS domain. Mark.