[c-nsp] Cisco 6509-V-E switch sup2t engine recommend IOS version

Tim Durack tdurack at gmail.com
Tue Dec 2 09:54:13 EST 2014

On Tue, Dec 2, 2014 at 9:35 AM, Phil Mayers <p.mayers at imperial.ac.uk> wrote:

> On 02/12/14 07:55, Xuhu NSP wrote:
>> Hi folks, we are starting to use this platform, any idea which IOS
>> version is quite stable? I checked in Cisco down website saying
>> suggested version is 15.0.1-sy7a.
> We've been running 15.1(2)SY2 on a box quite successfully. Only bug we've
> seen is a sup crash when altering CoPP policy, haven't been able to
> reproduce. Otherwise stable - features are OSPF/BGP, MPLS L3VPN with lots
> of local layer2, netflow, CoPP and multicast/MVPN.

I will second that. We had some random FIB programming bugs in 15.1(?)SY?,
but 15.1(2)SY2 has been behaving itself. Config: OSPF/LDP/BGP/MPLS/L3VPN,
lots of local SVI.


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