[j-nsp] SCB-E

Daniel Roesen dr at cluenet.de
Wed Feb 8 01:44:10 EST 2012

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

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,

CLUE-RIPE -- Jabber: dr at cluenet.de -- dr at IRCnet -- PGP: 0xA85C8AA0

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