[c-nsp] native ios vs hybrid

[nick.nauwelaerts at thomson.com]

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of 
> christian.macnevin at uk.bnpparibas.com
> Sent: Tuesday, October 04, 2005 05:53 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] native ios vs hybrid
> 
> My personal feeling with catalyst hardware is that it'sbetter 
> to go with 
> native IOS, because of things like netflow v9 and the ability
> to track conversations going on between hosts on the same vlan, and a 
> consistent interface. Some of the guys in my LAN team
> feel pretty differently, however. It seems they saw some issues where 
> sup1s and 2s experienced MSFC loss and they still
> believe that running hybrid mode is better, as it offers some kind of 
> operating systems resilience in case the MSFC fails.
> 
> Anyone else feel this way? Have any experience with the 
> current generation 
> of sup32s, 720s etc losing the MSFC and the
> whole show as a result? Anything else which justifies the 
> persistent use 
> of CatOS other than familiarity and the benefits of having
> slightly faster feature cycles?

Since the year or so we have our sup720s with native IOS in production
we had no issues with them and 1 reload because of an IOS software
upgrade (with another one planned). On the 5500 with RSMs they replaced
we had major issues with the RSM reloading & running at 100% CPU.
We run EIGRP on the 720s, some ACLs & policy based routing and QoS,
nothing special or exotic.

And ofcourse, some features and modules are still limited to CatOS or
IOS only (such as MPLS & DCEF), see:
http://www.cisco.com/en/US/products/hw/switches/ps708/products_white_pap
er09186a00800c8441.shtml


// nick