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External BGP (eBGP) Core Architecture
Hi all,
Can some body explain why transit routers can cause a loop if they do not run iBGP as discussed below?
"..All routers providing transit between multiple core routers in a region must also run iBGP to prevent routing loops, and they should have their iBGP sessions sourced from a loopback interface, with the loopback interface included in the regional IGP.."
Full article for "External BGP (eBGP) Core Architecture"
https://sites.google.com/a/brodieworld.com/internetworking/routing-protocols/bgp/enterprise-bgp-core-network-design/bgp-network-core-design-solutions/external-bgp-ebgp-core-architecture
Thanx in advance
Auge
Can some body explain why transit routers can cause a loop if they do not run iBGP as discussed below?
"..All routers providing transit between multiple core routers in a region must also run iBGP to prevent routing loops, and they should have their iBGP sessions sourced from a loopback interface, with the loopback interface included in the regional IGP.."
Full article for "External BGP (eBGP) Core Architecture"
https://sites.google.com/a/brodieworld.com/internetworking/routing-protocols/bgp/enterprise-bgp-core-network-design/bgp-network-core-design-solutions/external-bgp-ebgp-core-architecture
Thanx in advance
Auge