advertisements more specific than IGP
I have a BGP multi-homed invironment that I am having problems balancing
inbound traffic, besides prepends which don't seem to be helping anymore, I
have heard that announcing my networks more specifically could also influence
inbound traffic. My question
To: cisco-nsp@puck.nether.net
Subject: [c-nsp] BGP advertisements more specific than IGP
I have a BGP multi-homed invironment that I am having problems balancing
inbound traffic, besides prepends which don't seem to be helping anymore,
I have heard that announcing my networks more specifically could also
...@puck.nether.net
[mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of James Urwiller
Sent: Thursday, February 28, 2013 8:12 PM
To: cisco-nsp@puck.nether.net
Subject: [c-nsp] BGP advertisements more specific than IGP
I have a BGP multi-homed invironment that I am having problems
balancing inbound traffic
Message-
From: cisco-nsp-boun...@puck.nether.net
[mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of James Urwiller
Sent: Thursday, February 28, 2013 8:12 PM
To: cisco-nsp@puck.nether.net
Subject: [c-nsp] BGP advertisements more specific than IGP
I have a BGP multi-homed invironment that I
Hi,
On Fri, Mar 01, 2013 at 05:27:15PM +, James Urwiller wrote:
Community strings don't effect inbound traffic, right?
They do, if your upstreams support that (hey, upstream, please make
*this* route local-pref 70, and do 3x prepend on *that* route to DECIX).
Is there really no good way
I have a BGP multi-homed invironment that I am having problems balancing
inbound traffic, besides prepends which don't seem to be helping anymore, I
have heard that announcing my networks more specifically could also influence
inbound traffic. My question is, for example… If I have a /23 that
You will need to have the two /24s in your IGP for BGP to announce them.
Advertising your 2x 24s on the one link, and the 1x 23 on the other link
would cause all the traffic to pass via your 2x /24 link - more specific.
Have you tried just announcing the same /23 to both providers? How bad is
the
So more specifics are sort of a sledge hammer approach. If you announce more
specifics over one link, assuming a prefix that long is widely readvertised,
you'll reroute all the traffic not just have a small effect. (more specifics
always win) (also it's bad form to not announce unified
advertisements more specific than IGP
To: cisco-nsp@puck.nether.net cisco-nsp@puck.nether.net
Date: Thursday, February 28, 2013, 7:11 PM
I have a BGP multi-homed invironment
that I am having problems balancing inbound traffic, besides
prepends which don't seem to be helping anymore, I have
heard
On Feb 28, 2013, at 9:11 PM, James Urwiller wrote:
I have a BGP multi-homed invironment that I am having problems balancing
inbound traffic, besides prepends which don't seem to be helping anymore, I
have heard that announcing my networks more specifically could also influence
inbound
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