1. Using a loopback interface to define neighbours is common with IBGP but
not with eBGP . Normally the loopback interface is used to make sure the IP
address of the neighbour stays up and is independent of hardware functioning
properly. In the case of eBGP , peer routers are frequently connected and
loopback doesn't apply.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
ll_z
Sent: Friday, September 01, 2000 3:36 PM
To: [EMAIL PROTECTED]
Subject: some confusing about BGP
Hi guys:
I study the BGP bible (internet routing Architectures), but can not
understand some things.
1. Why need loopback interface ?
2. the figure of Page 131 figure 5-4.
Since the RTC got the route 192.213.1.0/24 from RTA through IBGP, why the
traffic from ISP2 to 192.213.1.0/24 was directed to next hop RTB not RTA?
why RTC do a recussive lookup in its IP routing table , but can not find
192.213.1.0/24?
thanks
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