[j-nsp] load balancing between juniper routers for unequal cost path

[Hamid Ahmed]

Hi,
   
  Thanks for your inputs. However i need to know what do u mean by "turning off OSPF on those shortcuts " and also wht is ECMP?. I am running MPLS but not for the particular traffic that needs to be load balanced. So i need to do load balancing for unequal cost paths for a traffic in an IP cloud that is being advertised over OSPF. DO i still need to turn off OSPF?
  regards,
  Salman.

Chris Kawchuk <ckawchuk at juniper.net> wrote:
  Build 2 MPLS LSPs to the destination router, turn on OSPF on those
shortcuts, and use ECMP. JunOS will see them as 2 completely identical
paths to the end-device, and load-balance across them.

Enable ECMP load balancing:

routing-options {
forwarding-table {
export load-balancing-policy;
}
}

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

Note that "load-balancing per-packet" is a misnomer, and a holdover back
to the Internet Processor #1 on the original M40/M20. We actually do
per-flow load balancing when this is enabled; so as not to upset the
path/timings/order of things like VoIP RTP packets.

- Chris.

____________________________________
Chris Kawchuk (ckawchuk at juniper.net)
Systems Engineering, Service Providers
Juniper Networks Inc., Canada
local: +1 (403) 470-8174
toll-free: +1 (866) 470-8174


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Hamid Ahmed
Sent: Wednesday, November 07, 2007 9:25 AM
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] load balancing between juniper routers for unequal cost
path

Hi Everyone,

CAn anyone suggest me how to load balancing between juniper routers for
unequal cost paths.

BR//
HA

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