The Journey of a Network Engineer

Jul 3 2011   2:39AM GMT

How to manipulate BGP Routes



Posted by: Sulaiman Syed
Tags:
Cisco
distribute-list
filter-list
Internet
PA
prefix-list
route
route-map
router

Border Gateway Protocol (BGP) is the back bone protocol that connects the internet. It falls under the External Gateway Protocols (EGP), interestingly it is the only routing protocols used in the external networks.

BGP is a robust protocol that can handle 100k routes, which are increasing. That as for IPv4 addresses, IPv6 addresses will have even more routes!

Manipulation of routes within the BGP cloud is one of the most challenging tasks a network engineer will be given. To manipulate the routes various Path Attributes (PAs) can be changed. They are done mainly by using:

Articles been posted on how to use the above mentioned ways. It is not easy, and required getting used to. Happy BGP routing!

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