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11 Cards in this Set
- Front
- Back
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Why we use BGP |
to create interdomain routing between AS
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what is an AS |
An AS is a collection of routers under single administration |
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how to exchange routes in same AS |
To exchange routes in same AS we need to use IGp protocol suchas igrp, eigrp or rip |
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how to exchange routes between routers in different AS |
to exchange routes between routers in differnet AS we need to use BGP |
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BGP uses which transport protocol and port number |
BGP uses tcp as a transport protocol and 179 as a port number |
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what are peer routers |
when two routers formed TCP connection between each other they are know as peer routers |
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two routers became peer routers now waht they exchange |
after bgp routers become peer routers , intiallly excahnge full ruting table and afterwards incremental updates
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when two routers become neigbour routers |
two routers become neighbour routers after they established tcp connection between each otehr |
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why tcp connection is essetails |
tcp connection essetail for two routers to excahnge routing updates |
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After establishing tcp connection , which message does routers send |
they send open message to excahnge values |
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which values are exchange with the open message |
the valuse are exchange with open message are AS number, bgp version , bgp router id and kepalive holdtime |
