Thanks for the input, Igor. We specifically have issues with path-mtu-discovery being broken in IPv6 due to the XMR not responding with icmp unreachables with IPv6. This is a known issue according to Brocade and is fixed in later releases.
We also recently had a very odd failure on two of four XMR's running the same code within a couple of hours of each other, thousands of miles apart. I unfortunately wasn't able to get enough information about what caused the failure when it was happening, but the XMR's RP seemed to stay alive yet line cards stopped forwarding traffic and some routing protocols were flapping causing churn. For the most part, the IGP and iBGP sessions stayed established which was really weird. No access to the devices were possible via any means including connecting from an adjacent device. A hard reboot brought them back online again. It's odd we saw that issues on two of them within hours of each other but no others were affected. This also happened early on January 1st which is a little weird. NSF support (or whatever Brocade calls it) on IS-IS is a new feature in 5.1 that I'd like to have support for. It would complement my Cisco's already supporting this for quite some time now and make an RP failover much less noticeable. Vinny Abello Network Engineer Dell | Physician Services office +1 973 940 6125 mobile +1 973 868 0610 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Igor Ybema Sent: Monday, January 17, 2011 4:02 PM To: [email protected] Subject: Re: [f-nsp] XMR Software Upgrade Path from 4.0.1a Hi, We at Oxilion, dutch based hosting provider, are running 4.0.0a for about 2 years now without any problems. Basic functions like OSPF, BGP, IPv4/IPv6 dualstack etc. No need to upgrade to 5.1 here yet. regards, Igor _______________________________________________ foundry-nsp mailing list [email protected] http://puck.nether.net/mailman/listinfo/foundry-nsp
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