Just as a follow-up question: Can somebody tell me how many route entries there
are in edge and core routers nowadays?
Thanks,
-- long
On Thu, Mar 23, 2000 at 08:03:37PM +0100, [EMAIL PROTECTED] wrote:
> Hy David - It depends!
> If you're redistributing RIP into OSPF, and into BGP, fine.
> If not, I don't see what you're doing. You'll have one for every protocol.
> Assuming it is a Cisco router, the router will have a BGP table (build on
> BGP messages), a OSPF table with the redistributed RIP routes and the OSPF
> entries. Note that the router needs to be redistributing in order that OSPF
> understands RIP messages. Every routing protocol (RIP being vector, OSPF
> being link state) has it's own "language", way of exchanging information.
> This info is carried in the fields in the packets. An OSPF packet doesn't
> equal a RIP packet. Thus also the database will be different. Besides the
> algorithm is not the same.
> RIP defines 2 message types: Request and Response. "Uses a routing
> algorithm in which routers periodically send routing updates to all
> neighbours by broadcasting their entire route tables. Next hop information
> relevant for routing.
> OSPF has link state advertisements that it put's into the topology
> database. When database is synchronised with neighbour, only changes will
> be sent. Metric cost relevant for routing.
>
> I hope this helps
>
> Sincerly,
>
> Damjan
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