[c-nsp] IPv6 on MSFC2

Richard Gallagher rgallagh at cisco.com
Thu Feb 8 18:25:01 EST 2007


Chuck, try ipc-con <slo#t> <cpu# 0|1>

Rich

Church, Chuck wrote:
> Thanks Oli.  From what I've read, the Enhanced FlexWAN can do about
> 640,000 PPS per slot.  I guess the non-enhanced version is about half
> that.  Assuming memory isn't an issue on the FlexWAN, are these PPS
> numbers accurate for IPv6 also, or just IPv4?  Also, how the heck does
> one console into the flexwan to check CPU?  I've tried a variety of
> remote, session, and attach commands.  Session slot slot# processor
> proc# seems to try, but I'm not sure of the processor number.  Tried
> both 0 and 1, both time out as it tries to connect to a loopback
> address.  It's a Sup2 in hybrid mode, CatOS 6.4, IOS 12.1E on MSFC.
> 
> Thanks again,
> 
> Chuck
> 
> -----Original Message-----
> From: Oliver Boehmer (oboehmer) [mailto:oboehmer at cisco.com] 
> Sent: Thursday, February 08, 2007 12:44 PM
> To: Church, Chuck; nsp
> Subject: RE: [c-nsp] IPv6 on MSFC2
> 
> Church, Chuck <> wrote on Thursday, February 08, 2007 6:23 PM:
> 
>> Anyone,
>>
>>     I understand that IPv6 is done in software on the MSFC2 on a Sup2.
>> I've read that the forwarding performance is about 500,000 pps for
>> software-switched CEF packets on this MSFC, and about 20,000 for
>> process switched.  Anyone have an idea if IPv6 is done in CEF on this
>> module? If so, does that 500,000 pps number seem realistic?  Assuming
>> no features like NAT, QoS, ACLs, etc.  We've got several hundred of
>> these in place for WAN connectivity, everything from DS-3 to OC-3 in
>> FlexWANs, and some OSMs doing POS OC-12.  Almost all are just one WAN
>> link, with ethernet connectivity down from there.  I'm thinking that
>> the Sup2 will probably work for speeds up to OC-3, but want to make
>> sure. 
> 
> I've seen tests with ~200kpps on Sup2, but then your MSFC CPU will be at
> 90+%, so not really something I'd do in production ;-)
> 
> Filling an OC3 with some IMIX packet distribution should work, however,
> not sure about the Flexwan as this also needs to be checked here.
> 
> 	oli
> 
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