ML1000 RPR load balancing and multicast problem

[manueltrifin]

Hello,

We have SDH network consisting in a STM16 ring with 7 ONS15454 MSPP nodes, sw version 9.0.1. In each node we have a ML1000-2 card connected in a RPR configuration through VC4-8C(8x155Mbs) circuits.

My questions:

Q1 We had expected the ring to balance itself but instead 90% of the traffic is going anti-clockwise which is the direction of the POS-0.

Q2 We are not able to transmit Multicast packets and we sometimes have problems with udp losses. Could this be due to a bad configuration of the ML-1000? Should we investigate higher in the core switches(6500’s)?

Thanks

[scnoyes]

Manuel,

I just published a document on load balancing on the ML card.  (ML Load Balancing after 5.doc).

Check the document section in the Optical Forum.

Also check the on-line configuration guide.

http://www.cisco.com/en/US/docs/optical/15000r9_0/ethernet/454/guide/45490a_mlcardovw.html

As for question #2.  o may find some answers on multicast in the load balancing document or configuration guide.  If not, I suggest opening a TAC case so they can verify your ML configuration.

Hope this Helps,

Steve Noyes

CSE Cisco TAC