[c-nsp] Best practices for Cat6500

[Jiri Prochazka]

Hi,

my experience is the same with 7600,  Sup720, IOS 12.2(33r)SRB3, so I don't
think its some new feature.. maybe some config issue?

As soon as I edit something in (inbound/outbound) route map, this change is
applied to bgp neighbor(s) instantly.. quite boring, for example when I want
to add new route-map sequence with lowest id.

Everything falls into this sequence, which has nothing configured (so
default preferece, no communities, etc..)

When I'm in such situation, I create copy of actual route-map with
appropriate editations and then change route map of neighbor at all..

I can post any bgp related config you need.


Kind regards,

Jiri


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Phil Mayers
Sent: Monday, November 01, 2010 3:09 PM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Best practices for Cat6500

On 01/11/10 13:19, Robert Hass wrote:
> On Mon, Nov 1, 2010 at 12:59 PM, Phil Mayers<p.mayers at imperial.ac.uk>
wrote:
>
>>> 3) Automatic BGP refresh
>>>
>>> When I change something in route-map for inbound BGP prefixes I 
>>> noticed that Cat6500 automatically refresh inbound BGP router 
>>> (automatically doing something like clear ip bgp x.x.x.x in). Is is 
>>> new feature in SXI4a ?
>>
>> Really? Are you sure?
>
> Yes. I checked this again few minutes ago on two 6500s in LAB. First 
> one is running 12.2(33)SXH4 and second one is running 12.2(33)SXI4a. I 
> simply modified inbound route-map (applied on neighbor) - changed 
> local-preference on both switches. And switch running SXI4a 
> automatically refreshed (without clear ip bgp ... in) inbound routes 
> and applied changes done within route-map.

That seems like a bit of a dangerous "feature" to introduce with no warning,
if that's what's really happening; what if you have a complex multi-edit
sequence to go through when rebuilding a route-map?

I'm not seeing the behaviour - a quick test on an eBGP peer locally doesn't
do this on our SXI4a box. Can you show some BGP config?
_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/