If I may suggestPlease pay particularly close attention to how you
address the devices that you intend to advertise. I often have customers who
purchase 2 T1s and want to acquire equal loads on both. The mistake is when
they advertise a www server that takes all of the traffic. Based on
source/destination cache, all traffic for that server comes across one link.
As Howard suggested, please take the time to draw this out. If you truly
want load sharing, redundancy, telco diversity, ISP/NSP diversity and
ISP/NSP POP diversity. It really is not as simple as buying multiple WAN
circuits. You can get as granular as making a request to get the telco DLRs
in an attempt to reduce possible single points of failure.
Chris
-Original Message-
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 24, 2001 10:30 AM
To: [EMAIL PROTECTED]
Subject: Re: Multihoming load balancing BGP [7:30011]
>Any ideas to load balance when multihoming ?
>
>Best Regards,
>Mohamed Saro
>
>
The first thing is defining exactly what you mean by load balancing
and multihoming, the expected return, and the investment you are
willing to make. These are complex topics: see
http://www.ietf.org/draft-ietf-berkowitz-multireq-02.txt
Some things you will need to know, assuming you are talking about
Internet connectivity, is how many external destinations will you
have? How many routable prefixes will you advertise? Do you need to
load share based on address or on traffic type?
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=30026&t=30011
--
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
