From: Michael Zuo (mzuo@ixiacom.com)
Date: Sun Jan 28 2007 - 02:27:17 ART
As Brian Dennis pointed out, this was caused by VTP pruning in a 4
switch setup where SW1 is VTP transparent and SW2 is VTP server....
-----Original Message-----
From: Standley, Jeffrey [mailto:jeffrey.standley@shawgrp.com]
Sent: Saturday, January 27, 2007 6:17 PM
To: Michael Zuo; ccielab@groupstudy.com
Subject: Re: questions about vlan pruning
Please provide the following outputs:
Sh int status
Sh run int fa0/05
Sh int fa0/05 sw
Jeff Standley
Telecommunications Manager
The Shaw Group, Inc.
4171 Essen Ln
Baton Rouge, LA 70809
225.987.6209
----- Original Message -----
From: nobody@groupstudy.com <nobody@groupstudy.com>
To: ccielab groupstudy <ccielab@groupstudy.com>
Sent: Sat Jan 27 19:54:31 2007
Subject: questions about vlan pruning
Hi Group,
I have dumb questioin: please see the output below, CAT2 has a port in
vlan 30, how come under "show int trun", vlan 30 does not show up in the
"Vlans in spanning tree forwarding state and not pruned
" list?
thanks
CAT2(config)#do sh vlan
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
1 default active Fa0/2, Fa0/4, Fa0/6,
Fa0/7
Fa0/8, Fa0/9, Fa0/10,
Fa0/11
Fa0/12, Fa0/15, Fa0/16,
Fa0/17
Fa0/18, Fa0/19, Fa0/20,
Fa0/21
Fa0/24, Gi0/1, Gi0/2
10 NET-10 active
20 NET-20 active Fa0/3
30 NET-30 active Fa0/5
40 NET-40 active Fa0/1
101 VLAN0101 active
102 VLAN0102 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1
Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------
------
1 enet 100001 1500 - - - - - 0
0
10 enet 100010 1500 - - - - - 0
0
CAT2(config)#do sh int trun
Port Mode Encapsulation Status Native vlan
Fa0/13 on isl trunking 1
Fa0/14 on 802.1q trunking 1
Fa0/22 desirable 802.1q trunking 1
Fa0/23 desirable 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/13 10
Fa0/14 1,20,30,40
Fa0/22 1-4094
Fa0/23 1-4094
Port Vlans allowed and active in management domain
Fa0/13 10
Fa0/14 1,20,30,40
Fa0/22 1,10,20,30,40,101-102
Fa0/23 1,10,20,30,40,101-102
Port Vlans in spanning tree forwarding state and not pruned
Fa0/13 10
Fa0/14 1
Fa0/22 1
Port Vlans in spanning tree forwarding state and not pruned
Fa0/23 1
CAT2(config)#
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