05-14-2008 08:32 PM
Dear expert,
I had a scenario as following
A--611MB---E Ethernet link to customer-Primary
B--611mb---F Ethernet link to customer-Primary
C--611MB---G Ethernet link to customer-Backup
D--611MB---H Ethernet link to customer-Backup
here A,B,C,D are provider end and E,F,G,H are customer end
Means I had four link to customer. His total requirement is 1222mb Internet link
A,B are primary link with BGP on loopback IP and C,D are backup link with BGP on loopback IP.
In this setup if link A---E goes down traffic will not shift to backup link and customer will get only 611mb (out of his requirement of 1222mb)
We want to create a scenario in which say A---E or C---g goes down he could have 1222mb out of four links
Is it possible with BGP and how?
rEGARDS
mAHESH
05-15-2008 01:52 AM
Hi,
I suppose that A/B are routers on ISP-1, and C/D are routers on ISP-2. So, on the Customer side you can use the GLBP protocol:
http://www.cisco.com/en/US/docs/ios/ipapp/configuration/guide/ipapp_glbp.html
and on ISPs side something like OER (that now is called Performance Routing). More infos:
http://www.cisco.com/en/US/products/ps8787/products_ios_protocol_option_home.html
HTH
Regards
Andrea
05-15-2008 02:11 AM
No A,B are two different link on routerX with same providerA
and C,D are two different link on routerY with same providerA
Regards
05-15-2008 04:26 AM
05-21-2008 10:33 AM
Mahesh,
Probably you can do this by using BGP... manipulation of BGP attributes and advertisement of your routes... but I am not sure what you are looking for in your network... definitely BGP will add some complexity in network... but it seams to be the proper solution... let me know if you need further help...
regards
Devang Patel
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