Re: IEWB9 T1.7: Tunnelling for Etherchannel

From: Chee Chew Leong (cleong3@csc.com)
Date: Thu Mar 08 2007 - 10:20:02 ART


Dear GS,

I dont agree with the solution as well. All the 4 ports on SW1 are
configured with VLAN 100. I believe this would cause SW1 to see as there
are four different connection from a single customer (if SW1 as ISP).

Furthermore, the etherchannel on SW4 and SW3 is force to on. I believe the
ethechannel is not form between SW4 and SW3.

Any IE people could verify the solution and question?

Regads

"Luca Tosolini" <l.tosolini@chello.nl>
Sent by: nobody@groupstudy.com
02/18/2007 08:22 PM
Please respond to
"Luca Tosolini" <l.tosolini@chello.nl>

To
"Cisco certification" <ccielab@groupstudy.com>
cc

Subject
IEWB9 T1.7: Tunnelling for Etherchannel

Dear IE,

I don't agree with your solution to this task for 2 main reasons:

- SW1 'switchport mode dot1q-tunnel' this shouldn't be there because the
customer ports SW3 & SW4 14 & 15 are layer 3 ports and so not trunk

- 'l2protocol-tunnel cdp' what's the point of tunneling CDP in a non
point-to-point topology? These BPDU will be broadcasted out all ports in
Vlan 100 and the receiving devices will be very confused

Thanks,

Luca.



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