From: cisco efiko (ciscoefiko@googlemail.com)
Date: Mon Jun 11 2007 - 17:32:27 ART
Brian,
Can you go over the solution again please. I'll try and lab it.
Regards,
Efiko.
On 6/8/07, Brian Dennis <bdennis@internetworkexpert.com> wrote:
>
> Victor,
> This is the problem he is referring to:
>
> http://www.groupstudy.com/archives/ccielab/200701/msg01364.html
>
> It doesn't relate to VTP pruning on a switch that is in VTP transparent
> mode. The problem is in regards to a switch in transparent mode between a
> server and client with VTP pruning enabled.
>
> --
>
> Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
>
>
> On 6/8/07 3:02 PM, "Victor Cappuccio" <victor@ccbootcamp.com> wrote:
>
> > Hi Michael,
> >
> > Can you elaborate a little bit more please this?
> > I have configured the following
> >
> >
> > Sw2#show vtp status
> > VTP Version : 2
> > Configuration Revision : 0
> > Maximum VLANs supported locally : 1005
> > Number of existing VLANs : 6
> > VTP Operating Mode : Transparent
> > VTP Domain Name : cisco
> > VTP Pruning Mode : Disabled
> > VTP V2 Mode : Disabled
> > VTP Traps Generation : Disabled
> > MD5 digest : 0xBE 0xF6 0xE5 0xB3 0x96 0x2C 0x86
> 0xEB
> > Configuration last modified by 10.10.8.8 at 3-3-93 05:27:43
> > Sw2#
> > rack5>7
> > [Resuming connection 7 to sw1 ... ]
> >
> > Sw1(config)#do show vtp status
> > VTP Version : 2
> > Configuration Revision : 0
> > Maximum VLANs supported locally : 1005
> > Number of existing VLANs : 14
> > VTP Operating Mode : Server
> > VTP Domain Name : cisco
> > VTP Pruning Mode : Disabled
> > VTP V2 Mode : Disabled
> > VTP Traps Generation : Disabled
> > MD5 digest : 0x26 0x18 0xF2 0x00 0xB5 0x36 0xA4
> 0x7A
> > Configuration last modified by 10.10.34.7 at 3-1-93 22:16:15
> > Local updater ID is 10.10.34.2 on interface Vl200 (lowest numbered VLAN
> > interface found)
> > Sw1(config)#vtp prun
> > Pruning switched on
> > Sw1(config)#do show vtp status
> > VTP Version : 2
> > Configuration Revision : 1
> > Maximum VLANs supported locally : 1005
> > Number of existing VLANs : 14
> > VTP Operating Mode : Server
> > VTP Domain Name : cisco
> > VTP Pruning Mode : Enabled
> > VTP V2 Mode : Disabled
> > VTP Traps Generation : Disabled
> > MD5 digest : 0xF4 0xF8 0x17 0x2E 0xCA 0x4D 0x80
> 0x9B
> > Configuration last modified by 10.10.34.2 at 3-2-93 16:01:24
> > Local updater ID is 10.10.34.2 on interface Vl200 (lowest numbered VLAN
> > interface found)
> >
> > So I enabled pruning and lets see what the sw2 has
> >
> > Sw1(config)#
> > rack5>8
> > [Resuming connection 8 to sw2 ... ]
> >
> > 3d21h: VTP LOG RUNTIME: Relaying packet received on trunk Fa0/19 - in
> > TRANSPARENT MODE (nc = false)
> >
> > 3d21h: VTP LOG RUNTIME: Relaying packet received on trunk Fa0/19 -
> > Sw2#do sho
> > 3d21h: VTP LOG RUNTIME: Relaying packet received on trunk Fa0/20 - in
> > TRANSPARENT MODE (nc = false)
> >
> > 3d21h: VTP LOG RUNTIME: Relaying packet received on trunk Fa0/19 - in
> > TRANSPARENT MODE (nc = false)
> >
> > Sw2#show vtp stat
> > VTP Version : 2
> > Configuration Revision : 0
> > Maximum VLANs supported locally : 1005
> > Number of existing VLANs : 6
> > VTP Operating Mode : Transparent
> > VTP Domain Name : cisco
> > VTP Pruning Mode : Disabled
> > VTP V2 Mode : Disabled
> > VTP Traps Generation : Disabled
> > MD5 digest : 0xBE 0xF6 0xE5 0xB3 0x96 0x2C 0x86
> 0xEB
> > Configuration last modified by 10.10.8.8 at 3-3-93 05:27:43
> > Sw2
> >
> >
> > VTP Prunning is disabled yet!
> >
> > By
> >
> http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.1/11/configurati
> > on/guide/vtp.html#wp1020402
> >
> > Transparent VTP transparent network devices do not participate in VTP. A
> VTP
> > transparent network device does not advertise its VLAN configuration and
> does
> > not synchronize its VLAN configuration based on received advertisements.
> > However, in VTP version 2, transparent network devices do forward VTP
> > advertisements that they receive on their trunking LAN interfaces.
> >
> > anyways if
> >
> > Sw2(config)#vtp mode client
> > Setting device to VTP CLIENT mode.
> > Sw2(config)#
> > 3d21h: VTP LOG RUNTIME: Transmit vtp request, domain cisco, start value
> 0
> >
> > 3d21h: VTP LOG RUNTIME: Transmit vtp request, domain cisco, start value
> 0
> >
> > 3d21h: VTP LOG RUNTIME: Summary packet received, domain = cisco, rev =
> 1,
> > followers = 1, length 77, trunk Fa0/20
> >
> > 3d21h:
> > 3d21h: summary: 01 01 01 05 63 69 73 63 6F 00 00 00 00 00 00 00
> > ....cisco.......
> > 3d21h: summary: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > ................
> > 3d21h: summary: 00 00 00 00 00 00 00 01 0A 0A 22 02 39 33 30 3
> > Sw2(config)#3 ..........".9303
> > 3d21h: summary: 30 32 31 36 30 31 32 34 F4 F8 17 2E CA 4D 80 9B
> > 02160124tx..JM..
> > 3d21h: summary: 1C 17 F9 82 4A 36 7D 89 01 01 01 02 00
> > ..y.J6}......
> > 3d21h:
> > 3d21h: VTP LOG RUNTIME: Summary packet rev 1 greater than domain cisco
> rev 0
> >
> > 3d21h: VTP LOG RUNTIME: Domain cisco currently not in updating state
> >
> > 3d21h: VTP LOG RUNTIME: pdu len 77, #tlvs 1
> >
> > 3d21h: VTP LOG RUNTIME: Subset packet received, domain = cisco, rev = 1,
> seq =
> > 1, length = 384
> >
> > 3d21h:
> > 3d21h:
> > Sw2(config)# subset: 01 02 01 05 63 69 73 63 6F 00 00 00 00 00 00 00
> > ....cisco.......
> > 3d21h: subset: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > ................
> > 3d21h: subset: 00 00 00 00 00 00 00 01 14 00 01 07 00 01 05 DC
> > ...............\
> > 3d21h: subset: 00 01 86 A1 64 65 66 61 75 6C 74 00 14 00 01 08
> > ...!default.....
> > 3d21h: subset: 00 0C 05 DC 00 01 86 AC 56 4C 41 4E 30 30 31 32
> > ...\...,VLAN0012
> > 3d21h: subset: 14 00 01 08 00 0D 05 DC 00 01 86 AD 56 4C 41 4E
> > .......\...-VLAN
> > 3d21h: subset: 30 3
> > Sw2(config)#0 31 33 14 00 01 08 00 1E 05 DC 00 01 86 BE
> 0013.......\...>
> > 3d21h: subset: 56 4C 41 4E 5F 42 42 31 14 00 01 08 00 28 05 DC
> > VLAN_BB1.....(.\
> > 3d21h: subset: 00 01 86 C8 56 4C 41 4E 5F 42 42 32 14 00 01 07
> > ...HVLAN_BB2....
> > 3d21h: subset: 00 37 05 DC 00 01 86 D7 56 4C 41 4E 5F 35 35 00
> > .7.\...WVLAN_55.
> > 3d21h: subset: 14 00 01 08 00 3C 05 DC 00 01 86 DC 56 4C 41 4E
> > .....<.\...\VLAN
> > 3d21h: subset: 5F 42 42 33 14 00 01 06 00 64 05 DC 00 01 87 04
> > _BB3.....d.\....
> > 3d21h: subset: 56 4C 41 4E 5F 42
> > Sw2(config)# 00 00 14 00 01 06 00 C8 05 DC VLAN_B.......H.\
> > 3d21h: subset: 00 01 87 68 56 4C 41 4E 5F 43 00 00 14 00 01 08
> > ...hVLAN_C......
> > 3d21h: subset: 00 C9 05 DC 00 01 87 69 56 4C 41 4E 30 32 30 31
> > .I.\...iVLAN0201
> > 3d21h: subset: 20 00 02 0C 03 EA 05 DC 00 01 8A 8A 66 64 64 69
> > ....j.\....fddi
> > 3d21h: subset: 2D 64 65 66 61 75 6C 74 01 01 00 00 04 01 00 00
> > -default........
> > 3d21h: subset: 28 00 03 12 03 EB 05 DC 00 01 8A 8B 74 6F 6B 65
> > (....k.\....toke
> > 3d21h: subset: 6E 2D 72 69 6E 67 2D 64 65 66
> > Sw2(config)#61 75 6C 74 00 00 n-ring-default..
> > 3d21h: subset: 01 01 00 00 04 01 00 00 24 00 04 0F 03 EC 05 DC
> > ........$....l.\
> > 3d21h: subset: 00 01 8A 8C 66 64 64 69 6E 65 74 2D 64 65 66 61
> > ....fddinet-defa
> > 3d21h: subset: 75 6C 74 00 02 01 00 00 03 01 00 01 24 00 05 0D
> > ult.........$...
> > 3d21h: subset: 03 ED 05 DC 00 01 8A 8D 74 72 6E 65 74 2D 64 65
> > .m.\....trnet-de
> > 3d21h: subset: 66 61 75 6C 74 00 00 00 02 01 00 00 03 01 00 02
> > fault...........
> > 3d21h:
> > 3d21h: VTP LOG RUNTIME: Transmit vtp summary, dom
> > Sw2(config)#ain cisco, rev 1, followers 1, tlv blk size 5 (inc #tlv
> field),
> > MD5 digest calculated = F4 F8 17 2E CA 4D 80 9B 1C 17 F9 82 4A 36 7D
> 89
> >
> > 3d21h: VTP LOG RUNTIME: Transmit vtp summary, domain cisco, rev 1,
> followers
> > 1, tlv blk size 5 (inc #tlv field),
> > MD5 digest calculated = F4 F8 17 2E CA 4D 80 9B 1C 17 F9 82 4A 36 7D
> 89
> >
> > 3d21h: VTP LOG RUNTIME: Transmit vtp request, domain cisco, start value
> 0
> >
> > 3d21h: VTP LOG RUNTIME: Summary packet received, domain = cisco, rev =
> 1,
> > followers = 1, length 77,
> > Sw2(config)#do show trunk Fa0/19
> >
> > 3d21h:
> > 3d21h: summary: 01 01 01 05 63 69 73 63 6F 00 00 00 00 00 00 00
> > ....cisco.......
> > 3d21h: summary: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > ................
> > 3d21h: summary: 00 00 00 00 00 00 00 01 0A 0A 22 02 39 33 30 33
> > ..........".9303
> > 3d21h: summary: 30 32 31 36 30 31 32 34 F4 F8 17 2E CA 4D 80 9B
> > 02160124tx..JM..
> > 3d21h: summary: 1C 17 F9 82 4A 36 7D 89 01 01 01 02 00
> > ..y.J6}......
> > 3d21h:
> > 3d21h: VTP LOG RUNTIME: Summary packet rev 1 equal to do
> > Sw2(config)#do show main cisco rev 1
> >
> > 3d21h: VTP LOG RUNTIME: Subset packet received, domain = cisco, rev = 1,
> seq =
> > 1, length = 384
> >
> > 3d21h:
> > 3d21h: subset: 01 02 01 05 63 69 73 63 6F 00 00 00 00 00 00 00
> > ....cisco.......
> > 3d21h: subset: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > ................
> > 3d21h: subset: 00 00 00 00 00 00 00 01 14 00 01 07 00 01 05 DC
> > ...............\
> > 3d21h: subset: 00 01 86 A1 64 65 66 61 75 6C 74 00 14 00 01 08
> > ...!default.....
> > 3d21h: subset: 00 0C 05 DC 00 01 86 AC 56 4C 41 4E 3
> > Sw2(config)#do show 0 30 31 32 ...\...,VLAN0012
> > 3d21h: subset: 14 00 01 08 00 0D 05 DC 00 01 86 AD 56 4C 41 4E
> > .......\...-VLAN
> > 3d21h: subset: 30 30 31 33 14 00 01 08 00 1E 05 DC 00 01 86 BE
> > 0013.......\...>
> > 3d21h: subset: 56 4C 41 4E 5F 42 42 31 14 00 01 08 00 28 05 DC
> > VLAN_BB1.....(.\
> > 3d21h: subset: 00 01 86 C8 56 4C 41 4E 5F 42 42 32 14 00 01 07
> > ...HVLAN_BB2....
> > 3d21h: subset: 00 37 05 DC 00 01 86 D7 56 4C 41 4E 5F 35 35 00
> > .7.\...WVLAN_55.
> > 3d21h: subset: 14 00 01 08 00 3C 05 DC 00 01 86 DC 56 4C 41 4E
> > Sw2(config)#do show vtp .....<.\...\VLAN
> > 3d21h: subset: 5F 42 42 33 14 00 01 06 00 64 05 DC 00 01 87 04
> > _BB3.....d.\....
> > 3d21h: subset: 56 4C 41 4E 5F 42 00 00 14 00 01 06 00 C8 05 DC
> > VLAN_B.......H.\
> > 3d21h: subset: 00 01 87 68 56 4C 41 4E 5F 43 00 00 14 00 01 08
> > ...hVLAN_C......
> > 3d21h: subset: 00 C9 05 DC 00 01 87 69 56 4C 41 4E 30 32 30 31
> > .I.\...iVLAN0201
> > 3d21h: subset: 20 00 02 0C 03 EA 05 DC 00 01 8A 8A 66 64 64 69
> > ....j.\....fddi
> > 3d21h: subset: 2D 64 65 66 61 75 6C 74 01 01 00 00 04 01 00 00
> > -default.....
> > Sw2(config)#do show vtp ...
> > 3d21h: subset: 28 00 03 12 03 EB 05 DC 00 01 8A 8B 74 6F 6B 65
> > (....k.\....toke
> > 3d21h: subset: 6E 2D 72 69 6E 67 2D 64 65 66 61 75 6C 74 00 00
> > n-ring-default..
> > 3d21h: subset: 01 01 00 00 04 01 00 00 24 00 04 0F 03 EC 05 DC
> > ........$....l.\
> > 3d21h: subset: 00 01 8A 8C 66 64 64 69 6E 65 74 2D 64 65 66 61
> > ....fddinet-defa
> > 3d21h: subset: 75 6C 74 00 02 01 00 00 03 01 00 01 24 00 05 0D
> > ult.........$...
> > 3d21h: subset: 03 ED 05 DC 00 01 8A 8D 74 72 6E 65 74 2D 64 65
> > .m.\....trnet-de
> > 3d21h: s
> > Sw2(config)#do show vtp status
> > VTP Version : 2
> > Configuration Revision : 1
> > Maximum VLANs supported locally : 1005
> > Number of existing VLANs : 14
> > VTP Operating Mode : Client
> > VTP Domain Name : cisco
> > VTP Pruning Mode : Enabled
> > VTP V2 Mode : Disabled
> > VTP Traps Generation : Disabled
> > MD5 digest : 0xF4 0xF8 0x17 0x2E 0xCA 0x4D 0x80
> 0x9B
> > Configuration last modified by 10.10.34.2 at 3-2-93 16:01:24
> > Sw2(confubset: 66 61 75 6C 74 00 00 00 02 01 00 00 03 01 00 02
> > fault......ig)#.....
> > 3d21h:
> >
> > So in order to work in a network with vtp mode in transparent make no
> sense to
> > enable or disable vtp prunning..
> > it make more sence to enable it on a Server to client relationship
> >
> > Anyways the Switch in VTP in transparent mode, should be configured with
> the
> > necesary vlans.
> >
> > so for example
> > Sw2(config-if)#do show vtp status
> > VTP Version : 2
> > Configuration Revision : 0
> > Maximum VLANs supported locally : 1005
> > Number of existing VLANs : 17
> > VTP Operating Mode : Transparent
> > VTP Domain Name : cisco
> > VTP Pruning Mode : Enabled
> > VTP V2 Mode : Disabled
> > VTP Traps Generation : Disabled
> > MD5 digest : 0xAA 0xD5 0x77 0x45 0xCC 0x3A 0xF6 0x6
> >
> > Sw2(config-vlan)#do show int trunk
> >
> > Port Mode Encapsulation Status Native vlan
> > Fa0/19 on 802.1q trunking 1
> > Fa0/20 on 802.1q trunking 1
> >
> > Port Vlans allowed on trunk
> > Fa0/19 1-4094
> > Fa0/20 1-4094
> >
> > Port Vlans allowed and active in management domain
> > Fa0/19 1,12-13,30,40,55,60,100,200-201
> > Fa0/20 1,12-13,30,40,55,60,100,200-201
> >
> > Port Vlans in spanning tree forwarding state and not pruned
> > Fa0/19 1,12-13,30,40,55,60,100,200-201
> > Fa0/20 1,12-13,30,40,55,60,100,200-201
> >
> > Sw2(config-if)#sw mo a
> > Sw2(config-if)#sw a vlan 666
> > % Access VLAN does not exist. Creating vlan 666
> > Sw2(config-if)#do show int trunk
> >
> >
> > Vlan 666 will pass the trunk link if we do not explicitly tell the trunk
> to
> > remove the vlan in the interface configuration
> >
> > Sw2(config-if)#do show int trunk
> >
> > Port Mode Encapsulation Status Native vlan
> > Fa0/19 on 802.1q trunking 1
> > Fa0/20 on 802.1q trunking 1
> >
> > Port Vlans allowed on trunk
> > Fa0/19 1-4094
> > Fa0/20 1-4094
> >
> > Port Vlans allowed and active in management domain
> > Fa0/19 1,12-13,30,40,55,60,100,200-201,405,500,666
> > Fa0/20 1,12-13,30,40,55,60,100,200-201,405,500,666
> >
> > Port Vlans in spanning tree forwarding state and not pruned
> > Fa0/19 1,12-13,30,40,55,60,100,200-201,405,500,666
> > Fa0/20 1,12-13,30,40,55,60,100,200-201,405,500,666
> >
> > thanks,
> > Victor Cappuccio.-
> > - CCSI# 31452
> >
> > Network Learning Inc - A Cisco Sponsored Organization (SO) YES! We take
> > Cisco Learning credits!
> > victor@ccbootcamp.com
> > http://www.ccbootcamp.com (Cisco Training and Rental Racks)
> > http://www.ccbootcamp.com/groupstudy.html (groupstudy member discounts!)
> > Voice: 702-968-5100
> > FAX: 702-446-8012
> >
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com on behalf of Michael Zuo
> > Sent: Fri 6/8/2007 14:45
> > To: thomas.rader@freesurf.ch; ccielab@groupstudy.com
> > Subject: RE: STP lab gotchas
> >
> > This is one of the biggest gotcha's I've run into: Be aware of the
> > combination of VTP transparent mode and VTP pruning, which can prune
> > vlans on switches where you don't want them pruned ;)
> >
> > Michael Zuo
> > CCIE #17800
> > CCIE study notes for sale :)
> > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STRK%3AM
> > ESE%3AIT&viewitem=&item=130121212718&rd=1&rd=1
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > thomas.rader@freesurf.ch
> > Sent: Friday, June 08, 2007 2:17 AM
> > To: ccielab@groupstudy.com
> > Subject: STP lab gotchas
> >
> > Hello,
> >
> > I'm hearing more and more that with the 4 switch labs, candidates are
> > having issues with STP loops.
> >
> > Does anyone know of any STP gotchas that could give you issues in the
> > lab ?
> >
> >
> > Thanks, Thomas
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
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> >
> > _______________________________________________________________________
> > Subscription information may be found at:
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>
> _______________________________________________________________________
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