From: Victor Cappuccio (vcappuccio@ccbootcamp.com)
Date: Sat Aug 25 2007 - 18:25:04 ART
Hi NiTin
Did you create the vlan on Sw3?
Some Check verification first.
Sw1#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 1005
Number of existing VLANs : 5
VTP Operating Mode : Transparent
VTP Domain Name : NLI
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x1E 0x90 0x6E 0x81 0x75 0x68 0x39 0xC4
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
Sw2#show vtp status
VTP Version : 2
Configuration Revision : 2
Maximum VLANs supported locally : 1005
Number of existing VLANs : 6
VTP Operating Mode : Server
VTP Domain Name : NLI
VTP Pruning Mode : Enabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x8A 0x49 0x65 0xE6 0xA4 0xE2 0x4F 0x91
Configuration last modified by 0.0.0.0 at 3-1-93 00:07:28
Local updater ID is 0.0.0.0 (no valid interface found)
Lets enable some debugs
Sw1#deb sw-vlan vtp pruning
vtp pruning debugging is on
Sw1#deb sw-vlan vtp events
vtp events debugging is on
Sw1#deb sw-vlan vtp packets
vtp packets debugging is on
Sw2#deb sw-vlan vtp pruning
vtp pruning debugging is on
Sw2#deb sw-vlan vtp even
vtp events debugging is on
Sw2#deb sw-vlan vtp events
vtp events debugging is on
Sw2#deb sw-vlan vtp packets
vtp packets debugging is on
I create a Vlan in Sw2 (Server)
Sw2#show vlan id 6
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
6 TEST active Po12
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1
Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------
------
6 enet 100006 1500 - - - - - 0 0
Remote SPAN VLAN
----------------
Disabled
Primary Secondary Type Ports
------- --------- -----------------
------------------------------------------
In VTP transparent switches do not participate in VTP. A VTP transparent
switch does not advertise its VLAN configuration and does not synchronize its
VLAN configuration based on received advertisements. However, in VTP version
2, transparent switches do forward VTP advertisements that they receive out
their trunk ports.
Sw1#conf ter
Enter configuration commands, one per line. End with CNTL/Z.
Sw1(config)#vlan 6
Sw1(config-vlan)#exit
Sw1(config)#VTP PRUNING DEBUG: start to add vlan 6 at domain NLI
VTP PRUNING DEBUG: end of add vlan 0 (NLI) (no pruning)
Sw1(config)#do show int trunk
Port Mode Encapsulation Status Native vlan
Po12 on 802.1q trunking 1
Port Vlans allowed on trunk
Po12 1-4094
Port Vlans allowed and active in management domain
Po12 1,6
Port Vlans in spanning tree forwarding state and not pruned
Po12 1
Sw1(config)#no vlan 6
Sw1(config)#VTP PRUNING DEBUG: delete vlan 6 at domain NLI
Sw1(config)#do show int trunk
Port Mode Encapsulation Status Native vlan
Po12 on 802.1q trunking 1
Port Vlans allowed on trunk
Po12 1-4094
Port Vlans allowed and active in management domain
Po12 1
Port Vlans in spanning tree forwarding state and not pruned
Po12 1
Sw1(config)#
Sw1(config-vlan)#do show int trunk
Port Mode Encapsulation Status Native vlan
Po12 on 802.1q trunking 1
Port Vlans allowed on trunk
Po12 1-4094
Port Vlans allowed and active in management domain
Po12 1
Port Vlans in spanning tree forwarding state and not pruned
Po12 1
Sw1(config-vlan)#do show vlan id 6
VLAN id 6 not found in current VLAN database
Sw1(config-vlan)#vlan 6
VTP PRUNING DEBUG: start to add vlan 6 at domain NLI
VTP PRUNING DEBUG: end of add vlan 0 (NLI) (no pruning)
Sw1(config-vlan)#do show vlan id 6
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
6 VLAN0006 active Po12
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1
Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------
------
6 enet 100006 1500 - - - - - 0 0
Remote SPAN VLAN
----------------
Disabled
Primary Secondary Type Ports
------- --------- -----------------
------------------------------------------
Sw1(config-vlan)#do show int trunk
Port Mode Encapsulation Status Native vlan
Po12 on 802.1q trunking 1
Port Vlans allowed on trunk
Po12 1-4094
Port Vlans allowed and active in management domain
Po12 1,6
Port Vlans in spanning tree forwarding state and not pruned
Po12 1
Sw1(config-vlan)#VTP PRUNING INFO: chg trunk Po12 vlan 6 SPT st to 1 (no
pruning)
Sw1(config-vlan)#int vlan 6
Sw1(config-if)#6VTP PRUNING INFO: domain NLI vlan 6 chg local assoc to 1
00:12:32: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan6, changed state
to up
Sw1(config-if)#ip add 6.6.6.6 255.25
00:12:33: VTP LOG RUNTIME: Relaying packet received on trunk Po12 - in
TRANSPARENT MODE (nc = false)
Sw1(config-if)#ip add 6.6.6.6 255.255.255.0
VTP Transparent in V2 advertises the information lets configure a new switch
Sw1(config)#int range f0/7 - 8
Sw1(config-if-range)#sw tr en do
Sw1(config-if-range)#sw mo tr
Sw1(config-if-range)#sw no
Sw1(config-if-range)#channel-gr 14 mode on
Creating a port-channel interface Port-channel 14
Sw1(config-if-range)#no sh
Switch(config)#hostname Sw4
Sw4(config)#no logg con
Sw4(config)#int range f0/1 - 24
Sw4(config-if-range)#sh
Sw4(config-if-range)#int range f0/7 - 8
Sw4(config-if-range)#sw tr en do
Sw4(config-if-range)#sw mo tr
Sw4(config-if-range)#sw no
Sw4(config-if-range)#channel-gr 14 mode on
Creating a port-channel interface Port-channel 14
Sw4(config-if-range)#no sh
Sw4(config-if-range)#vtp domain NLI
Changing VTP domain name from NULL to NLI
% Command exited out of interface range and its sub-modes.
Not executing the command for second and later interfaces
Sw4(config)#vtp mode client
Setting device to VTP CLIENT mode.
Sw4(config)#do show int trunk
Port Mode Encapsulation Status Native vlan
Po14 on 802.1q trunking 1
Port Vlans allowed on trunk
Po14 1-4094
Port Vlans allowed and active in management domain
Po14 1
Port Vlans in spanning tree forwarding state and not pruned
Po14 none
Sw4(config)#
Sw4(config)#do show vlan id 6
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
6 TEST active Po14
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1
Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------
------
6 enet 100006 1500 - - - - - 0 0
Remote SPAN VLAN
----------------
Disabled
Primary Secondary Type Ports
------- --------- -----------------
------------------------------------------
thanks,
Victor Cappuccio.-
- CCSI# 31452
CCBOOTCAMP - A Cisco Sponsored Organization (SO)
vcappuccio@ccbootcamp.com
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-----Original Message-----
From: nobody@groupstudy.com on behalf of NITIN NITIN
Sent: Sat 25-Aug-07 12:29 PM
To: ccielab@groupstudy.com
Subject: VTP PRUNING--Basic Q
Hi ,
I have a issue with prunning enabled
SW3(TRANSPARENT) ---------SW4(SERVER)
SW3 has SVI 22
SW4 has SVI 22
per my understanding SW3 should not tell SW4 to not prune VLAN22 and ping
B/w two switches should drop for VLAN 22....
But ping is 100% , can u help me understanding why ??
Thanks and regards
---------------------------------
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This archive was generated by hypermail 2.1.4 : Sat Sep 01 2007 - 11:32:13 ART