[f-nsp] Netiron 5.6 feedbacks

[Youssef Bengelloun-Zahr]

Hi,

Interesting... Did TAC give you 56d GA release date ?

Y.



> Le 25 mai 2014 à 12:57, Wouter de Jong <wouter at widexs.nl> a écrit :
> 
> Hi,
> 
> (Apologies for not quoting, etc as I don't have the original email in my
> mailbox)
> 
> Too bad that 5.6 seems 'buggy' ... some of it's new features look nice, and
> I was planning to put it on a new box... 
> now I'm not so sure about that any longer...
> 
> 
> Also interesting that you seem to run 5.5d without problems, as we came
> across a bug in 5.5 with regards 
> to the IPv6 route cache - DEFECT000500944
> 
> Due to it's characteristics, my guess would be that we really can't be the
> only one that faced that problem ? :)
> 
> The issue is that after a link between 2 MLXe's fails and the IGP selects a
> different path ... it fails to update the IPv6 cache.
> However, it updates the RIB, etc correctly .... so IPv6 traffic transiting
> through the router appears to keep working without issue and
> everything _seems_ correctly (even from looking at CAM), only traffic
> originated from the router itself (eg. loopback) is still pointing 
> to the wrong interface, which for example affected IPv6 iBGP sessions in our
> case.
> 
> The provided method to resolve it is to manually clear the IPv6 cache by
> running "clear ipv6 cache"
> (Note that 'cache' is hidden in the outout from "clear ipv6 ?" ...
> DEFECT000503937)
> 
> 
> According to TAC, this issue occurs in both 5.5.x and 5.6.x ... and both
> with IS-IS and OSPF.
> In our case, this was on MLXe-4's with 4x10G X-blades, running IS-IS, with
> v5.5d and v5.5e 
> Fix should come in 5.6d .. not sure in what version 5.5 will be fixed.
> 
> 
> Just wondering if anyone else faced this as well ?
> 
> 
> Best regards,
> 
> Wouter
> 
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