[j-nsp] Jumbo frames / mismatch MTU

[Saku Ytti]

Hey,



> Juniper counts layer 2 the header as well for MTU, unlike most of the
> vendors.
> Juniper side MTU has to be set 14 bytes bigger and your OSPF and LDP
> should come up
> Good luck!!
>

Not sure this is the reason. Considering he is stating his network is all
JNPR, and considering modern CSCO and NOK count MTU the same way as JNPR
(doesn't make it any less wrong, ofc).

I don't think there is enough information to answer OP, but one possibility
is that he runs VLAN tagging on the QFX core, and the frames sent by edge
to core are too large to allow for additional 4B.


-- 
  ++ytti