Category BGP

eBGP Peering

eBGP Peering ——————- We can peer with a device in other Autonomous System using eBGP. The AD(administrative distance) for eBGP peers is 20. By default the time-to-live(TTL) is set to 1 for eBGP sessions. If a eBGP session is configured…

BGP Reachability

BGP Reachability ================= R1 | |      |       R2—FR CLOUD—R6 | | | R5 Here in the above scenario R1 and R2 both connected to R6 via Frame-relay cloud and OSPF area 0 is running between all of them, and…

BGP Filtering

BGP Filtering =========== One of the most important thing in BGP to prevent our own public AS to be used as transit AS for other BGP AS’s. There are several ways to accomplish this as we can also use BGP…

BGP Default Routing

BGP Default Route Origination ============================= We can originate default route to specific BGP neighbor through route bgp [AS No.] neighbor [ip address] default-originate Note:-By doing this the Default route is originated to the BGP peer along with the other routes…