In RIP, IGRP, EIGRP, and OSPF the network statement specifics which
interfaces are to participate in routing. In BGP, that is accomplished
by the neighbor statement. The network statement specifies which routes
the router will originate.
For example, in EIGRP, if you have the statement "network 10.0.0.0",
any interface in that 10.0.0.0/8 network will participate in the routing
protocol by default. The same goes for RIP, EIGRP, and IGRP.
In OSPF, the statement is a little bit different but accomplishes
largely the same thing except it also specifies the area that an
interface (link) belongs in. This would look like:
router ospf 1
network 10.1.1.1 0.0.0.0 area 0.0.0.1
That network statement turns on OSPF routing on the interface that has
the IP address 10.1.1.1 and places it into area one.
Now, for BGP. BGP can originate routes learned by three methods:
1. Redistribution from another protocol
2. Routes learned from another BGP neighbor
3. Specific network statements
If you choose to use the network statement, the route you want to
advertise must exist in the routing table.
I hope this helps. It's may not be 100% accurate and, if so, someone
will correct me.
Regards,
John
>>> "Ray Smith" 8/30/01 9:56:32 AM >>>
Could some please break down to me in layman terms how the Network
statement
(eg., Network x.x.x.x) in BGP differs from that used in RIP, IGRP or
EIGRP?
I am not exactly clear on the differences on how they are used.
Ray
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