From: ccie2be (ccie2be@nyc.rr.com)
Date: Sat Oct 30 2004 - 12:03:40 GMT-3
Hi guys,
I'd like to confirm something.
Regarding the routers used in the lab, even though these routers support both
trunking protocols, ISL and 802.1q, they don't support DTP (Dynamic Trunking
Protocol), correct?
Also, from what I can tell, routers don't suppport either of the EtherChannel
aggregation protocols, LACP or PagP, true?
Now, assuming the above statements are true, I'm wondering how the 3550 side
of the links connected to a router should be configured. If the router
doesn't support any of these negotiation protocols, I assume that on the 3550
side, I should make sure no negotiation is done. Is this assumption correct?
Also, what happens if I forget or misconfigure the 3550 side such that it
tries to negotiate with the router? Will there still be connectivity between
the 3550 and the router or will the link (etherchannel) never pass traffic?
I don't know how likely it is to see a layer 2 or 3 etherchannel between a
3550 and a router show up on the lab, but I figure I better know how this is
done in advance rather than trying to figure it out during the actual lab.
TIA, Tim
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