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Protected Ports Multi Switch Interaction

 
 
Philip
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      03-29-2007
Can client machine D communicate with client machine A or B?

My aim is for all client machines to communicate with the server on
switch 1 - but no clients on the VLAN to be able to talk between
themselves (ie: no peer to peer communication).

I understand the use of protected ports on a single switch, but I
don't fully understand how they interact when on multiple switches
linked via a trunk link and on the same VLAN.

If some clients will still be able to communicate with each other,
what would be the best approach to preventing this?

Scenario:

Switch 1

Port 1: Unprotected Port. Connects to server. VLAN 2
Port 2: Unprotected Port. Trunk link to switch 2

Switch 2

Port 1: Unprotected Port. Trunk link to switch 1
Port 2: Unprotected Port. Trunk link to switch 3
Port 3: Protected Port. VLAN 2. Client machine A.
Port 4. Protected Port. VLAN 2. Client machine B.

Switch 3

Port 1: Unprotected Port. Trunk link to switch 2.
Port 2: Protected Port. VLAN 2. Client machine C.
Port 3: Protected Port. VLAN 2. Client machine D.

Theres actually about 80 Cisco switches involved, and all switches
host a variety of other VLAN's which must remain unaffected by any
changes.

Many Thanks,

Philip

 
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