BGP multi-homing query - two BGP sessions from one ISP to separate iBGP connected 7206 routers
I've inherited the support of two internet-facing 7206VXR routers used as the BGP tier / Internet ingress-egress point of my organisation. We have three ISP services split between two data centres and an iBGP peering between the two 7206s. Each ISP has two BGP sessions - one to the 7206 that their circuit is connected to and another to the 7206 in our other data centre. What I'm trying to understand is why they have been configured this way and what benefits (if any) it gives over just having a single eBGP session between each ISP and the local 7206 and the iBGP session between the two 7206s (which are both within our one AS)?
I've attached a high-level diagram that shows what I'm trying to explain!
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.