LACP Frames / Level3 Transport

Mark Tinka mark.tinka at
Tue May 24 06:58:13 UTC 2016

On 24/May/16 08:51, Jared Mauch wrote:

> I’ve seen optical transport gear be non-transparent in a few situations when 
> using OTU2 vs OTU2e, but they turned out to be a bug.

I've seen this as well, including in an SDH transport, where OSPF
packets were being eaten (something Multicast-related).

>   If a L2 platform is
> being used to front-end a router, you could be seeing slow protocols like
> CDP/LLDP/LACP being consumed by that switch.  If you configure LLDP does it
> pass end-to-end?

That's what I was thinking at first when I read the OP's post. If the
circuit is being transported over MPLS or being fronted by an Ethernet
switch, Level(3) would have to tunnel Layer 2 protocols in order to
support your LACP frames across the pw.


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