RE: CE Dampening

Well I guess it is a logic of when you typically are wanting to apply
dampening. Typically you are not wanting to dampen routes you are
advertising to someone that you believe to be good. You want to dampen
routes you are receiving from a neighbor before advertising to someone else.
As the VRF address families are only for receiving and sending to the given
CE it makes sense to control dampening at the VPNv4 address family instead
which is where you are going to be advertising the prefix's to other P/PE
routers.

Regards,
 
Tyson Scott - CCIE #13513 R&S, Security, and SP
Managing Partner / Sr. Instructor - IPexpert, Inc.
Mailto: tscott_at_ipexpert.com

-----Original Message-----
From: Muzammil Malick [mailto:malickmuz_at_gmail.com]
Sent: Thursday, September 02, 2010 11:18 AM
To: Tyson Scott
Cc: Cisco certification
Subject: Re: CE Dampening

Hi Tyson

Does this mean that dampening is enabled for all address families then?
Does enabling dampening on the vpnv4 address family only apply to
vpnv4 peerings or ipv4 peerings aswell?

On 2 September 2010 16:10, Tyson Scott <tscott_at_ipexpert.com> wrote:
> Dampening should be performed under the VPNv4 address family.
>
> Regards,
>
> Tyson Scott - CCIE #13513 R&S, Security, and SP
> Managing Partner / Sr. Instructor - IPexpert, Inc.
> Mailto: tscott_at_ipexpert.com
>
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Muzammil Malick
> Sent: Thursday, September 02, 2010 8:53 AM
> To: Cisco certification
> Subject: CE Dampening
>
> Hi Everyone
>
> I am trying to configure dampening on the peering to my CE under the
> address-family as follows
>
> router bgp 10
> address-family ipv4 unicast vrf RED
>
> But the command is not there, how would I dampen routes to specific peers?
>
>
> R1(config-router-af)#bgp ?
> redistribute-internal Allow redistribution of iBGP into IGPs (dangerous)
> router-id Router identifier configuration
> suppress-inactive Suppress routes that are not in the routing table
>
>
> Thanks
>
>
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Received on Thu Sep 02 2010 - 11:45:05 ART