Thanks again Leigh,
So I guess the neighbors WILL receive their own advertised routes back from
Elvis, since it's multicasting its entire Route Table...
Have a great day,
Ole
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ole Drews Jensen
Systems Network Manager
CCNA, MCSE, MCP+I
RWR Enterprises, Inc.
[EMAIL PROTECTED]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
http://www.RouterChief.com
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-----Original Message-----
From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 09, 2001 1:58 PM
To: Ole Drews Jensen; [EMAIL PROTECTED]
Subject: RE: EIGRP: Adding a new router [7:15504]
EIGRP Update packets are used to communicate information about routes.
Updates are transmitted only when there is a change in the topology.
Updates contain only the changed information and are sent only to routers
that require the information.
Updates are multicast unless only one router requires the update
information--then the update is unicast. Updates are also unicast when a
neighbor is on a point-to-point link.
In the case of Elvis coming up, all routers require its routing information
so Elvis will multicast (and unicast to any point-to-point neighboring
routers).
-- Leigh Anne
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Ole Drews Jensen
Sent: Thursday, August 09, 2001 12:19 PM
To: [EMAIL PROTECTED]
Subject: EIGRP: Adding a new router [7:15504]
When adding a new router - Elvis - it is my understanding that the following
happens:
1)
Elvis sends multicast HELLO packets out all interfaces.
2)
Neighbors that receives the HELLO packets replies with their entire Route
Table, except routes learned from Elvis (however, they have not learned
anything from Elvis yet).
3)
Elvis ACKnowledges the replies.
4)
Elvis adds all the replying neighbors to its Neighbor Database, and all the
routing information to its Topology Database.
5)
After having calculated the best routes and put them in its own Route Table,
Elvis will send the full Route Table out to all the neighbors.
However, will it (A) send unicasts to each neighbor with all routes except
the ones it have learned from that neighbor, or will it (B) send a multicast
to 224.0.0.10 with all routes?
Thanks,
Ole
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ole Drews Jensen
Systems Network Manager
CCNA, MCSE, MCP+I
RWR Enterprises, Inc.
[EMAIL PROTECTED]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
http://www.RouterChief.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
NEED A JOB ???
http://www.oledrews.com/job
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=15516&t=15504
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