BGP Attributes Explained || Weight || Local Preference || MED || AS Path || Origin Code || Next hop скачать в хорошем качестве

BGP Attributes Explained || Weight || Local Preference || MED || AS Path || Origin Code || Next hop

BGP Explained in Detail -    • Видео   BGP is the Exterior Gateway Protocol used to exchage the route information between different Autonomous System (AS). The BGP makes the routing decision based on the Network policies, Path or rule-sets configured by the network administrator. BGP Attributes: Interior Gateway Protocols (IGP) like EIGRP, OSPF, RIP will choose the best path based on the metrics; However, BGP have different ways of route selection that assigns various attributes to each path. This Attributes can be manipulated to control the path that is selected. Attributes are a piece of information attached in the BGP UPDATE message by the BGP Router to choose the best path. There are 4 categories of attributes: Well-known mandatory: Must be recognized by all BGP routers, present in all BGP updates, and passed on to other BGP routers. For example, AS path, origin, and next hop. Well-known discretionary: Must be recognized by all BGP routers and passed on to other BGP routers but need not be present in an update, for example, local preference. Optional transitive: Might or might not be recognized by a BGP router but is passed on to other BGP routers. If not recognized, it is marked as partial, for example, aggregator, community. Optional non-transitive: Might or might not be recognized by a BGP router and is not passed on to other routers, for example, Multi-Exit Discriminator (MED), originator ID.