Re: BGP mesh

[Rose Olsen]

When an IBGP speaker receives an update from another bgp speaker within its own AS, the receiving BGP speaker will not distribute that update to other BGP speakers with the AS. However, it will distribute the updates to EBGP speakers outside of its AS. In other words, if routers A,B and C are in an AS. Router A connects to router B and router C connects to A, but there is no connection between routers B and C. When router C sends an update to router A, that update does not get passed on to router B, but it will get distributed to external ASs.  This is why IBGP needs to be fully meshed. If you have a large IBGP network, a full mesh may not be feasible. Router reflectors can be used in this instance. Router reflectors are similar to having a designated router in OSPF.   I believe this is the way it works. Can someone else confirm this. "Frank Wells"<[EMAIL PROTECTED]> wrote in message ... Would someone be so kind as to explain why BGP speakers within a common AS need to be fully meshed please. I am reading some Cisco documentation that is attached to this message. The paragraphs in red are what is not quite clear to me. Thanks a lot. ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com