RE: [j-nsp] AW: [j-nsp] BGP with equal static routes

From: Stephen Gill (gillsr@yahoo.com)
Date: Mon Sep 03 2001 - 22:35:17 EDT

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Sure,
You may attempt the standard per-packet load balancing command which
actually performs flow based load balancing on an IP2 ASIC.

[edit policy-options]
policy-statement load-balancing {
        then {
                load-balance per-packet;
        }
}

Then, apply the above policy thusly:

[edit routing-options]
/* Export the policy that turns on flow based load balancing */
forwarding-table {
export load-balancing;
}

Note that a random next-hop will be chosen to place in the FIB (assuming
equal metrics) unless the above load-balancing has been configured.
Hopefully this addresses your concern(s).

-- steve

-----Original Message-----
From: Strahler, Carsten [mailto:Carsten.Strahler@lambdanet.net]
Sent: Monday, September 03, 2001 2:16 AM
To: 'sean capshaw'
Cc: juniper-nsp@puck.nether.net; jared@puck.nether.net
Subject: [j-nsp] AW: [j-nsp] BGP with equal static routes

Hi,

thanks for your help, but on the website is mentioned that multipath doesn't
work with eBGP multihop.
Any other idea ?

----------------------------------------------------------------
Carsten Strahler

Core Network Planning IP

Lambdanet Communications GmbH
Guenther-Wagner-Allee 13
D-30177 Hannover (Germany)

Phone +49 (0)511 / 84 88 - 12 86
Fax +49 (0)511 / 84 88 - 12 69
mailto:carsten.strahler@lambdanet.net

News & Facts finden Sie auf unserer Website: www.lambdanet.de
-----------------------------------------------------------

-----Ursprungliche Nachricht-----
Von: sean capshaw [mailto:capshaw@juniper.net]
Gesendet: Freitag, 31. August 2001 22:55
An: Strahler, Carsten
Cc: juniper-nsp@puck.nether.net; jared@puck.nether.net
Betreff: Re: [j-nsp] BGP with equal static routes

Hello,

Junos has supported EBGP multipath since 4.3 so the workaround you are
describing is not necessary.

Please have a look at:

http://www.juniper.net/techpubs/software/junos50/swconfig50-routing/html/bgp
-config30.html#1015717

Thanks
Sean

On Fri, 31 Aug 2001, Strahler, Carsten wrote:

> Hi,
>
> one question. We'd like to connect a customer via two E1 to our M20s. To
the
> customer we run Multihop-BGP.
> What will happen if we define two equal static routes to the BGP-Nexthop ?
> Will each customer-prefix be routed over only one E1? Or do we have a
> per-packet or per-destination distribution?
> We want to avoid using Multilink-PPP because of the additional PIC needed.
>
>
>
> ----------------------------------------------------------------
> Carsten Strahler
>
> Core Network Planning IP
>
> Lambdanet Communications GmbH
> Guenther-Wagner-Allee 13
> D-30177 Hannover (Germany)
>
> Phone +49 (0)511 / 84 88 - 12 86
> Fax +49 (0)511 / 84 88 - 12 69
> mailto:carsten.strahler@lambdanet.net
>
> News & Facts finden Sie auf unserer Website: www.lambdanet.net
> -----------------------------------------------------------
>
>

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