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Bookmark or Share- BGP Zero to Hero Part 7, BGP Communities - Cisco Learning NetworkWhy use BGP communities? 1-Customers can use it internally to mark a set of prefixes that share a common property then apply a common routing policy such as filtering or assigning a specific local preference etc. BGP Communities are useful to solve asymmetrical customer routing problems.
- BGP - Understanding Inbound Traffic Engineering - Cisco Learning NetworkUnderstanding of the BGP Best-Path selection process In order to show the various options that you have to try an manipulate how traffic enters your network I will be using the following topology. In this scenario we will be controlling the attributes associated with our public subnet 169.254.0.0/16.
- BGP Zero to Hero Part 1 , Establishing Peering’s - Cisco Learning Networkshow ip bgp
- BGP Zero to Hero Part 9, AS-Path Attribute ManipulationBGP as-override vs allow-as-in. BGP Loop Preventation mechansim. BGP uses the AS_PATH attribute for loop detection and avoidance. The AS_PATH attribute is a list of AS numbers that the update has traversed. BGP router adds it’s own AS number to the AS_PATH sequence (attribute) when it advertise the update to a neighbor in another AS.
- BGP Site of Origin (SoO) - Concepts & ConfigurationBGP SoO is a tag that is appended on BGP updates to allow a peer to mark a particular peer as belonging to a particular site. In certain MPLS L3 VPN configurations, the BGP AS-Path may not provide the granularity needed prevent a loop in the control-plane.
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