[f-nsp] MPLS VLL Between Cisco and Brocade

[Eric Helm]

On 2/13/2012 8:27 PM, Bruno Barba Vilchis wrote:
> You need to verify the VC type on both sides (brocade, and Cisco), the VC type needs to be exactly the same,  because if don't match you never see traffic forwarding
> 
> The VC type depends if you are trying to transport traffic with VLAN tag or Untagged. VC type 5 or VC type 4
> 

Also make sure the service MTU matches on both sides. Brocade doesn't
seem to care what the remote MTU is, but I've seen other boxes (ALU)
fail to establish the service if the remote MTU doesn't match.

Also, there was a Bug in some CES/CER software with LDP signaled
VPLS/VLL that prevented interop with some 3rd party boxes.

DEFECT000366041: Fixed in 5.2b and later.

LDP session might keep flapping if peer sends LDP hello message without
transport address TLV. In configuration with third party router
connected via CES, the CES might disconnect the LDP session with error
hold timer expired even though the remote device was sending an LDP hello.

/Eric