Hi, It won't help you i fear but i did see exactly the same defect on some other concurrent platform (cisco 3560G).
With the latest IOS software (15.x) a 3560G unit in L3 mode does correctly send RA and reply to RS, but the same unit in L2 mode between a router and a server fail to deliver RA/RS messages ... "Normal" IPv6 trafic correctly flow thru the 3560G in L2 however. Downgrading the L2 unit to a 12.xx release did solve the problem, and also did replacing the 3560G by a 2960G even in IOS 15. Looks like some packet handling code isn't correctly de-activated. Le 16/06/2014 07:23, John Neiberger a écrit : > This does seem to be specific to RA/RS. I haven't been involved in > troubleshooting over the weekend but the updates I read said that they took > some packet captures of RA messages from the Cisco 7600 that the switch > used to be connected to and compared them with captures taken from the > MX960. They found some differences and adjusted to the configuration to > make them the same, but that still did not resolve the problem. The issue > has been escalated with Juniper. Last I read, no one really has any idea > yet what is going on. They've got an action plan for tomorrow, so I'll know > more after a meeting in the morning. Sure seems awfully funky, though. JTAC > seems to be at a loss to explain what is happening. > > Thanks, > John > > > On Sun, Jun 15, 2014 at 5:22 AM, Phil Mayers <p.may...@imperial.ac.uk> > wrote: > >> On 14/06/14 22:24, John Neiberger wrote: >> >> The EX4550 is just layer two. There is no routing configured on it, so it >>> should just be passing the RAs from the router to the hosts on the second >>> switch, but that doesn't seem to be happening. >>> >> Is it RA/RS specific, or is forwarding to fe80::1 and related groups >> broken? >> >> >> Have any of you ever seen anything quite like this? >> On other platforms, I've seen IPv6 link-local multicast fail to flow as >> some tiny table, sized with IPv4 assumptions, overflowed. >> >> _______________________________________________ >> juniper-nsp mailing list juniper-nsp@puck.nether.net >> https://puck.nether.net/mailman/listinfo/juniper-nsp >> > _______________________________________________ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp