[j-nsp] SCB-E

[Frank Blankman]

We've seen PR718485 get hit on a 960 with SCB-E some 16x10G MPC and 11.4R1, though no recurring hits after applying the workaround. Running a config close to Dave's.

Frank


On Feb 13, 2012, at 3:26 PM, David Temkin wrote:
> Not horrible, but similar results in a box with dual SCB-E and 2 16x10G MPCs:
> 
> $ time snmpbulkwalk -v2c -c # x.x.x.x ifHCInOctets > /dev/null
> 
> real    0m6.262s
> user    0m0.028s
> sys    0m0.018s
> 
> So, it's usable - and I haven't hit any other showstopper bugs thus far - but I'm running purely IP (two full tables + other associated peers).
> 
> -Dave
> 
> On 2/8/12 6:10 AM, david.roy at orange.com wrote:
>> Hi,
>> 
>> Same results on my side...
>> 
>> Just a precision to be sure that there is no mis-understanding : it's not triggered by SCB-E, it is a software issue... But currently we only have this release to play with SCB-E :-)
>> 
>> 
>> 
>> Regards
>> David
>> 
>> David Roy
>> IP/MPLS Support engineer - Orange France
>> Ph. +33 2 99 87 64 72 - Mob. +33 6 85 52 22 13
>> david.roy at orange.com
>> 
>> JNCIE-M&T/SP #703
>> JNCIP-ENT
>> 
>> -----Message d'origine-----
>> De : juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] De la part de Daniel Roesen
>> Envoyé : mercredi 8 février 2012 07:44
>> À : juniper-nsp at puck.nether.net
>> Objet : Re: [j-nsp] SCB-E
>> 
>> On Wed, Feb 08, 2012 at 01:23:11AM +0000, OBrien, Will wrote:
>>> Anyone running the SCB-E? I've got a stack of them with a set of fresh
>>> MX480s ready to roll out. I'm curious what code your running.
>> Given that there is only one public JUNOS release which supports SCB-E, there aren't many options: 11.4R1 - and that one has unusable SNMP due to new PFE statistics request delays introduced (feature, not bug of
>> course!):
>> 
>> foo at lab-MX960>  show snmp mib walk ifHCOutOctets | count
>> Count: 413 lines
>> 
>> $ time snmpbulkwalk -v2c -c removed x.x.x.x ifHCInOctets>  /dev/null
>> Timeout: No Response from x.x.x.x
>> 
>> real    0m26.380s
>> user    0m1.647s
>> sys     0m0.133s
>> 
>> PR/731833 - fix supposed to come in 11.4R3 slated for May.
>> 
>> So as far as things stand, SCB-E not deployable before mid 2012 earliest if (and that's a big "if" when looking at 10.4 experience) 11.4R3 is going to be usable.
>> 
>> Ah, and 11.4R1 floods your log with messages like:
>> 
>> mcsn[91713]: %DAEMON-6: krt_decode_nexthop: Try freeing: nh-handle: 0x0
>> nh-index: 1049083 fwdtype: 3
>> 
>> No idea wether that's service affecting - we haven't observed any impact due to that yet.
>> 
>> Best regards,
>> Daniel
>> 
>> --
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