VTP Pruning scenario

From: YourPal (dearprudence28@gmail.com)
Date: Tue Jan 08 2008 - 15:18:59 ARST

• Next message: Scott Vermillion: "RE: (my .net File).. dynamips Nightmare, HELP!!"
• Previous message: Darby Weaver: "Re: Failed first attempt"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]

Hi Group,

I have a VTP pruning scenario to clarify.

SW3 (Fa0/16) ---------- (Fa0/16) SW2 (Fa0/13) ---------- (Fa0/13) SW1

- All switches are in the same VTP domain and all are server mode.
- The links are 802.1Q trunks, passing all VLANs (default).
- VLAN 8 is created on SW1. VTP pruning is enabled on SW1.
- SW2 has SVI for VLAN 8. SW1 & SW3 do not have ports assigned to VLAN 8 and
do not have SVI for VLAN 8.
- SW1 is root bridge for VLAN 8.

Question:
Ensure that SW1 and SW3 receive unknown unicast, broadcast, or multicast
traffic for VLAN 8 over their trunk link to SW2.

My solution is to configure the following on SW2 only:

SW2:
interface Fa0/13
 switchport trunk pruning vlan 2-7,9-1001
interface Fa0/16
 switchport trunk pruning vlan 2-7,9-1001

This makes VLAN 8 not eligible for pruning on those two trunk links and
therefore SW1 & SW3 can "receive" those traffic mentioned in the task. I
hope I got the concept right.

But the solution guide has a different answer, as follows:

SW1:
interface Fa0/13
 switchport trunk pruning vlan 2-7,9-1001

SW3:
interface Fa0/16
 switchport trunk pruning vlan 2-7,9-1001

Any comment?

Thank you.

BR,
Emil

• Next message: Scott Vermillion: "RE: (my .net File).. dynamips Nightmare, HELP!!"
• Previous message: Darby Weaver: "Re: Failed first attempt"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]

This archive was generated by hypermail 2.1.4 : Fri Feb 01 2008 - 10:37:58 ARST