August 2000
Intermediate to advanced
528 pages
12h 44m
English
Content preview from Internet Routing Architectures, Second Edition
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Frequently Asked Questions
Q— Does BGP send periodic updates like RIP?
A— No. BGP exchanges routing information once, when the BGP session is being established. After that, only network changes are exchanged between BGP peers.
Q— Does the BGP session become "established" after all the routing updates have been exchanged between BGP neighbors?
A— No. It is the other way around. No routing exchange can take effect until both BGP neighbors agree on all parameters and the session becomes established.
Q— Is the Network Layer Reachability Information (NLRI) the actual BGP routing update?
A— No. The NLRI is one of the elements that is carried in a BGP UPDATE message. Other elements are the attributes and the unreachable networks.
Q— You talk about ...
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