«

Help! I'm trying to setup a trunk between 2 x 2950 switches so that I can
access all vlans from both switches. Devices patched into vlan1 can see each
other no problem but I can't seem to get any other vlans working over the
trunk. I'm testing by pinging the devices patched into the appropriate vlans
on the other switch - there's no routing involved. Configs of both switches
are below - any help would be greatly appreciated!

Cheers,
John

SWITCH1#show running-config
Building configuration...

Current configuration : 3339 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log datetime
no service password-encryption
service sequence-numbers
!
hostname SWITCH1
!
enable secret 5 -------------------
enable password -------------------
!
ip subnet-zero
no ip finger
!
!
no spanning-tree vlan 2
no spanning-tree vlan 3
no spanning-tree vlan 4
no spanning-tree vlan 5
no spanning-tree vlan 6
!
!
interface FastEthernet0/1
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/2
switchport access vlan 5
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/3
switchport mode access
!
interface FastEthernet0/4
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/5
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/6
switchport mode access
!
interface FastEthernet0/7
switchport mode access
!
interface FastEthernet0/8
switchport mode access
!
interface FastEthernet0/9
switchport access vlan 3
switchport mode access
duplex full
speed 10
!
interface FastEthernet0/10
switchport access vlan 3
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/11
switchport access vlan 3
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/12
switchport access vlan 3
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/13
switchport access vlan 3
switchport mode access
duplex full
speed 10
!
interface FastEthernet0/14
switchport access vlan 2
switchport mode access
duplex full
speed 10
!
interface FastEthernet0/15
switchport access vlan 2
switchport mode access
duplex full
speed 10
!
interface FastEthernet0/16
switchport access vlan 2
switchport mode access
duplex full
speed 10
!
interface FastEthernet0/17
switchport access vlan 2
switchport mode access
duplex full
speed 10
!
interface FastEthernet0/18
switchport access vlan 5
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/19
switchport access vlan 5
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/20
switchport mode trunk
switchport nonegotiate
duplex full
speed 10
!
interface FastEthernet0/21
switchport access vlan 3
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/22
switchport access vlan 3
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/23
switchport access vlan 4
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/24
switchport access vlan 6
switchport mode access
!
interface Vlan1
ip address 192.168.1.3 255.255.255.0
no ip route-cache
!
ip http server
!
line con 0
transport input none
line vty 0 4
password ----------
login
line vty 5 15
password M----------
login
!
end



SWITCH1#show interface trunk

Port Mode Encapsulation Status Native vlan
Fa0/20 on 802.1q trunking 1

Port Vlans allowed on trunk
Fa0/20 1-1005

Port Vlans allowed and active in management domain
Fa0/20 1-5,99

Port Vlans in spanning tree forwarding state and not pruned
Fa0/20 1-5,99


----------------------------------------------------------------------------------------

SWITCH2#show running-config
Building configuration...

Current configuration : 1346 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname SWITCH2
!
enable secret 5 -------------------
enable password -------------------
!
ip subnet-zero
!
!
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
no spanning-tree vlan 2-6
!
!
!
!
interface FastEthernet0/1
switchport mode trunk
switchport nonegotiate
speed 10
duplex full
spanning-tree bpduguard disable
!
interface FastEthernet0/2
switchport mode access
speed 100
duplex full
!
interface FastEthernet0/3
switchport mode access
speed 100
duplex full
!
interface FastEthernet0/4
switchport access vlan 2
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/5
switchport access vlan 2
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/6
switchport access vlan 3
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/7
switchport access vlan 3
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/8
switchport access vlan 4
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/9
switchport access vlan 4
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/10
switchport access vlan 5
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/11
switchport access vlan 5
switchport mode access
duplex full
speed 100
!
interface FastEthernet0/12
speed 100
duplex full
!
interface Vlan1
ip address 192.168.1.2 255.255.255.0
no ip route-cache
!
ip http server
!
line con 0
line vty 0 4
password ----------
login
line vty 5 15
password ----------
login
!
!
end



SWITCH2#show interface trunk

Port Mode Encapsulation Status Native vlan
Fa0/1 on 802.1q trunking 1

Port Vlans allowed on trunk
Fa0/1 1-4094

Port Vlans allowed and active in management domain
Fa0/1 1-5,99

Port Vlans in spanning tree forwarding state and not pruned

"John Tressle" <> wrote in message
news:cgdQh.20693$_ k...
> Help! I'm trying to setup a trunk between 2 x 2950 switches so that I can
> access all vlans from both switches. Devices patched into vlan1 can see
> each other no problem but I can't seem to get any other vlans working over
> the trunk. I'm testing by pinging the devices patched into the appropriate
> vlans on the other switch - there's no routing involved. Configs of both
> switches are below - any help would be greatly appreciated!
>
> Cheers,
> John
>
> SWITCH1#show running-config
> Building configuration...
>
> Current configuration : 3339 bytes
> !
> version 12.1
> no service pad
> service timestamps debug uptime
> service timestamps log datetime
> no service password-encryption
> service sequence-numbers
> !
> hostname SWITCH1
> !
> enable secret 5 -------------------
> enable password -------------------
> !
> ip subnet-zero
> no ip finger
> !
> !
> no spanning-tree vlan 2
> no spanning-tree vlan 3
> no spanning-tree vlan 4
> no spanning-tree vlan 5
> no spanning-tree vlan 6
> !
> !
> interface FastEthernet0/1
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/2
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/3
> switchport mode access
> !
> interface FastEthernet0/4
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/6
> switchport mode access
> !
> interface FastEthernet0/7
> switchport mode access
> !
> interface FastEthernet0/8
> switchport mode access
> !
> interface FastEthernet0/9
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/10
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/11
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/12
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/13
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/14
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/15
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/16
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/17
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/18
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/19
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/20
> switchport mode trunk
> switchport nonegotiate
> duplex full
> speed 10
> !
> interface FastEthernet0/21
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/22
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/23
> switchport access vlan 4
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/24
> switchport access vlan 6
> switchport mode access
> !
> interface Vlan1
> ip address 192.168.1.3 255.255.255.0
> no ip route-cache
> !
> ip http server
> !
> line con 0
> transport input none
> line vty 0 4
> password ----------
> login
> line vty 5 15
> password M----------
> login
> !
> end
>
>
>
> SWITCH1#show interface trunk
>
> Port Mode Encapsulation Status Native vlan
> Fa0/20 on 802.1q trunking 1
>
> Port Vlans allowed on trunk
> Fa0/20 1-1005
>
> Port Vlans allowed and active in management domain
> Fa0/20 1-5,99
>
> Port Vlans in spanning tree forwarding state and not pruned
> Fa0/20 1-5,99
>
>
> ----------------------------------------------------------------------------------------
>
> SWITCH2#show running-config
> Building configuration...
>
> Current configuration : 1346 bytes
> !
> version 12.1
> no service pad
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname SWITCH2
> !
> enable secret 5 -------------------
> enable password -------------------
> !
> ip subnet-zero
> !
> !
> !
> spanning-tree mode pvst
> no spanning-tree optimize bpdu transmission
> spanning-tree extend system-id
> no spanning-tree vlan 2-6
> !
> !
> !
> !
> interface FastEthernet0/1
> switchport mode trunk
> switchport nonegotiate
> speed 10
> duplex full
> spanning-tree bpduguard disable
> !
> interface FastEthernet0/2
> switchport mode access
> speed 100
> duplex full
> !
> interface FastEthernet0/3
> switchport mode access
> speed 100
> duplex full
> !
> interface FastEthernet0/4
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/5
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/6
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/7
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/8
> switchport access vlan 4
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/9
> switchport access vlan 4
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/10
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/11
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/12
> speed 100
> duplex full
> !
> interface Vlan1
> ip address 192.168.1.2 255.255.255.0
> no ip route-cache
> !
> ip http server
> !
> line con 0
> line vty 0 4
> password ----------
> login
> line vty 5 15
> password ----------
> login
> !
> !
> end
>
>
>
> SWITCH2#show interface trunk
>
> Port Mode Encapsulation Status Native vlan
> Fa0/1 on 802.1q trunking 1
>
> Port Vlans allowed on trunk
> Fa0/1 1-4094
>
> Port Vlans allowed and active in management domain
> Fa0/1 1-5,99
>
> Port Vlans in spanning tree forwarding state and not pruned

Have you actually created the other vlans on the switches?

On Apr 2, 3:59 pm, "John Tressle" <john.tres...@nospam.com> wrote:
> Help! I'm trying to setup a trunk between 2 x 2950 switches so that I can
> access all vlans from both switches. Devices patched into vlan1 can see each
> other no problem but I can't seem to get any other vlans working over the
> trunk. I'm testing by pinging the devices patched into the appropriate vlans
> on the other switch - there's no routing involved. Configs of both switches
> are below - any help would be greatly appreciated!
>
> Cheers,
> John
>
> SWITCH1#show running-config
> Building configuration...
>
> Current configuration : 3339 bytes
> !
> version 12.1
> no service pad
> service timestamps debug uptime
> service timestamps log datetime
> no service password-encryption
> service sequence-numbers
> !
> hostname SWITCH1
> !
> enable secret 5 -------------------
> enable password -------------------
> !
> ip subnet-zero
> no ip finger
> !
> !
> no spanning-tree vlan 2
> no spanning-tree vlan 3
> no spanning-tree vlan 4
> no spanning-tree vlan 5
> no spanning-tree vlan 6
> !
> !
> interface FastEthernet0/1
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/2
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/3
> switchport mode access
> !
> interface FastEthernet0/4
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/6
> switchport mode access
> !
> interface FastEthernet0/7
> switchport mode access
> !
> interface FastEthernet0/8
> switchport mode access
> !
> interface FastEthernet0/9
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/10
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/11
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/12
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/13
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/14
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/15
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/16
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/17
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 10
> !
> interface FastEthernet0/18
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/19
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/20
> switchport mode trunk
> switchport nonegotiate
> duplex full
> speed 10
> !
> interface FastEthernet0/21
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/22
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/23
> switchport access vlan 4
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/24
> switchport access vlan 6
> switchport mode access
> !
> interface Vlan1
> ip address 192.168.1.3 255.255.255.0
> no ip route-cache
> !
> ip http server
> !
> line con 0
> transport input none
> line vty 0 4
> password ----------
> login
> line vty 5 15
> password M----------
> login
> !
> end
>
> SWITCH1#show interface trunk
>
> Port Mode Encapsulation Status Native vlan
> Fa0/20 on 802.1q trunking 1
>
> Port Vlans allowed on trunk
> Fa0/20 1-1005
>
> Port Vlans allowed and active in management domain
> Fa0/20 1-5,99
>
> Port Vlans in spanning tree forwarding state and not pruned
> Fa0/20 1-5,99
>
> ----------------------------------------------------------------------------------------
>
> SWITCH2#show running-config
> Building configuration...
>
> Current configuration : 1346 bytes
> !
> version 12.1
> no service pad
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname SWITCH2
> !
> enable secret 5 -------------------
> enable password -------------------
> !
> ip subnet-zero
> !
> !
> !
> spanning-tree mode pvst
> no spanning-tree optimize bpdu transmission
> spanning-tree extend system-id
> no spanning-tree vlan 2-6
> !
> !
> !
> !
> interface FastEthernet0/1
> switchport mode trunk
> switchport nonegotiate
> speed 10
> duplex full
> spanning-tree bpduguard disable
> !
> interface FastEthernet0/2
> switchport mode access
> speed 100
> duplex full
> !
> interface FastEthernet0/3
> switchport mode access
> speed 100
> duplex full
> !
> interface FastEthernet0/4
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/5
> switchport access vlan 2
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/6
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/7
> switchport access vlan 3
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/8
> switchport access vlan 4
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/9
> switchport access vlan 4
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/10
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/11
> switchport access vlan 5
> switchport mode access
> duplex full
> speed 100
> !
> interface FastEthernet0/12
> speed 100
> duplex full
> !
> interface Vlan1
> ip address 192.168.1.2 255.255.255.0
> no ip route-cache
> !
> ip http server
> !
> line con 0
> line vty 0 4
> password ----------
> login
> line vty 5 15
> password ----------
> login
> !
> !
> end
>
> SWITCH2#show interface trunk
>
> Port Mode Encapsulation Status Native vlan
> Fa0/1 on 802.1q trunking 1
>
> Port Vlans allowed on trunk
> Fa0/1 1-4094
>
> Port Vlans allowed and active in management domain
> Fa0/1 1-5,99
>
> Port Vlans in spanning tree forwarding state and not pruned

You need to run VTP. Second, you need to make sure that the VLANs are
showing as up/up in show ip int brief. This will require either an
interface that is up in those VLANs, or a configured layer 3 interface.

>
> You need to run VTP. Second, you need to make sure that the VLANs are
> showing as up/up in show ip int brief. This will require either an
> interface that is up in those VLANs, or a configured layer 3 interface.
>

I deleted all VLANS on switch2, configured switch1 as a VTP server and
switch2 as a VTP client - both in the same VTP domain. I can see the VLANS
have been transferred to switch2 and if I plug 2 devices into the same VLAN
on switch2 (e.g. vlan2) they can ping each other. They still can't ping a
device plugged into vlan2 on switch1 however. Devices patched into vlan1
only can ping each other across the link.

Is there anything else I'm missing here? - I'm at my wits end!

Many thanks,
John

On Apr 3, 2:20 pm, "John Tressle" <john.tres...@nospam.com> wrote:
> > You need to run VTP. Second, you need to make sure that the VLANs are
> > showing as up/up in show ip int brief. This will require either an
> > interface that is up in those VLANs, or a configured layer 3 interface.
>
> I deleted all VLANS on switch2, configured switch1 as a VTP server and
> switch2 as a VTP client - both in the same VTP domain. I can see the VLANS
> have been transferred to switch2 and if I plug 2 devices into the same VLAN
> on switch2 (e.g. vlan2) they can ping each other. They still can't ping a
> device plugged into vlan2 on switch1 however. Devices patched into vlan1
> only can ping each other across the link.
>
> Is there anything else I'm missing here? - I'm at my wits end!
>
> Many thanks,
> John

paste configs again please. Along with show ip int brief, show int
trunk, show spanning-tree vlan 1 and show spanning-tree vlan 2 on the
switches.

What ip range is vlan 1 vs. 2?

"John Tressle" <> wrote in message
news:wVwQh.29891$ k...
> >
>> You need to run VTP. Second, you need to make sure that the VLANs are
>> showing as up/up in show ip int brief. This will require either an
>> interface that is up in those VLANs, or a configured layer 3 interface.
>>
>
> I deleted all VLANS on switch2, configured switch1 as a VTP server and
> switch2 as a VTP client - both in the same VTP domain. I can see the VLANS
> have been transferred to switch2 and if I plug 2 devices into the same
> VLAN on switch2 (e.g. vlan2) they can ping each other. They still can't
> ping a device plugged into vlan2 on switch1 however. Devices patched into
> vlan1 only can ping each other across the link.
>
> Is there anything else I'm missing here? - I'm at my wits end!
>
> Many thanks,
> John

what are you using to route the vlans? The 2950 is only a layer 2 switch,
the vlans will never be able to talk to eachother without a layer 3 device.

Brian V wrote:
>
> what are you using to route the vlans? The 2950 is only a layer 2 switch,
> the vlans will never be able to talk to eachother without a layer 3 device.
>
>

You should be able to create vlans on 2 switches and communicate as long
as the 2 devices are in the same vlan. you do not need a layer 3 device
unless you are routing to a different vlan.

"John Tressle" <> wrote in message
news:wVwQh.29891$ k...
> >
>> You need to run VTP. Second, you need to make sure that the VLANs are
>> showing as up/up in show ip int brief. This will require either an
>> interface that is up in those VLANs, or a configured layer 3 interface.
>>
>
> I deleted all VLANS on switch2, configured switch1 as a VTP server and
> switch2 as a VTP client - both in the same VTP domain. I can see the VLANS
> have been transferred to switch2 and if I plug 2 devices into the same
> VLAN on switch2 (e.g. vlan2) they can ping each other. They still can't
> ping a device plugged into vlan2 on switch1 however. Devices patched into
> vlan1 only can ping each other across the link.
>
> Is there anything else I'm missing here? - I'm at my wits end!
>
> Many thanks,
> John

There's no specific requirement to run vtp at all. We run a network of
6500's, 3750's, 3560's and 2950's and do not use vtp. I'd steer away from
the default values ie. instead of assuming "switchport trunk allowed vlan
all" is active, actually configure what vlans you want trunked ...
"switchport trunk allowed vlan <vlan list>".

I'm curious as to why you have disabled spanning tree. If you're concerned
about delays with ports becoming active just configure "spanning-tree
portfast" on access ports. With spanning-tree enabled you'll be able to see
the layer-2 topology using "show spanning-tree vlan <vlan id>".

BernieM

Hi John,

why do you use 10Mbps for the trunk?
I'm not shure whether 802.1q is running on 10Mbps.

If it doesn't help:
send an overview, something like
PC - fa0/1 - switchA - fa0/20 - fa0/1 - switchB - fa0/24 PC
send also a "show cdp neigh"
and of course the config (if you've allredy changed something)

lw

>
> why do you use 10Mbps for the trunk?
> I'm not shure whether 802.1q is running on 10Mbps.
>
> If it doesn't help:
> send an overview, something like
> PC - fa0/1 - switchA - fa0/20 - fa0/1 - switchB - fa0/24 PC
> send also a "show cdp neigh"
> and of course the config (if you've allredy changed something)
>
> lw

Thanks for your help with this so far - it's really appreciated. The trunk
ports are currently set to 10Mb because the link between the 2 switches is
actually a leased line which is presented as 10Mb on both ends - should this
make a difference?

The connection is not routed - up until this point we've been using the
connection specifically for vlan1 traffic with devices on the same subnet
(192.168.1.0/24) connected on both ends without a problem. We're
implementing the trunk because we now need devices on the 2nd switch on
other vlans (again no routing involved - devices within vlans on both
switches are configured in the same subnet). To confirm - since implementing
the trunk, devices on vlan1 can ping each other over the trunk - but no
devices in other vlans will see each other. Spanning Tree is disabled
because we had problems connecting our Internet connection (VLAN2 on switch
1) and were recommended to disable by the provider.

I've attached show interface trunk, the current vlans, show cdp neighbor and
show ip interface brief:

Thanks again for your assistance,
John



SWITCH1#show interface trunk

Port Mode Encapsulation Status Native vlan
Fa0/20 on 802.1q trunking 1

Port Vlans allowed on trunk
Fa0/20 1-1005

Port Vlans allowed and active in management domain
Fa0/20 1-6,99

Port Vlans in spanning tree forwarding state and not pruned
Fa0/20 1,6




SWITCH1#show cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater

Device ID Local Intrfce Holdtme Capability Platform Port ID
SWITCH2 Fas 0/20 125 S I WS-C2950-1Fas 0/1
SWITCH3 Fas 0/18 172 S I WS-C2950-2Fas 0/20


SWITCH1 (vlan)#show current
VLAN ISL Id: 1
Name: default
Media Type: Ethernet
VLAN 802.10 Id: 100001
State: Operational
MTU: 1500

VLAN ISL Id: 2
Name: VLAN0002
Media Type: Ethernet
VLAN 802.10 Id: 100002
State: Operational
MTU: 1500

VLAN ISL Id: 3
Name: VLAN0003
Media Type: Ethernet
VLAN 802.10 Id: 100003
State: Operational
MTU: 1500

VLAN ISL Id: 4
Name: VLAN0004
Media Type: Ethernet
VLAN 802.10 Id: 100004
State: Operational
MTU: 1500

VLAN ISL Id: 5
Name: VLAN0005
Media Type: Ethernet
VLAN 802.10 Id: 100005
State: Operational
MTU: 1500

VLAN ISL Id: 6
Name: VLAN0006
Media Type: Ethernet
VLAN 802.10 Id: 100006
State: Operational
MTU: 1500

VLAN ISL Id: 99
Name: Autotest_Lab
Media Type: Ethernet
VLAN 802.10 Id: 100099
State: Operational
MTU: 1500

VLAN ISL Id: 1002
Name: fddi-default
Media Type: FDDI
VLAN 802.10 Id: 101002
State: Operational
MTU: 1500
Ring Number: 0

VLAN ISL Id: 1003
Name: token-ring-default
Media Type: Token Ring
VLAN 802.10 Id: 101003
State: Operational
MTU: 1500
Ring Number: 0

VLAN ISL Id: 1004
Name: fddinet-default
Media Type: FDDI Net
VLAN 802.10 Id: 101004
State: Operational
MTU: 1500
Bridge Number: 1
STP Type: IEEE

VLAN ISL Id: 1005
Name: trnet-default
Media Type: Token Ring Net
VLAN 802.10 Id: 101005
State: Operational
MTU: 1500
STP Type: IBM


SWITCH1#show ip interface brief
Interface IP-Address OK? Method Status
Protocol
Vlan1 192.168.1.3 YES NVRAM up
up

FastEthernet0/1 unassigned YES unset up
up

FastEthernet0/2 unassigned YES unset up
up

FastEthernet0/3 unassigned YES unset up
up

FastEthernet0/4 unassigned YES unset up
up

FastEthernet0/5 unassigned YES unset up
up

FastEthernet0/6 unassigned YES unset up
down

FastEthernet0/7 unassigned YES unset up
up

FastEthernet0/8 unassigned YES unset up
up

FastEthernet0/9 unassigned YES unset up
up

FastEthernet0/10 unassigned YES unset up
up

FastEthernet0/11 unassigned YES unset up
up

FastEthernet0/12 unassigned YES unset up
up

FastEthernet0/13 unassigned YES unset up
up

FastEthernet0/14 unassigned YES unset up
up

FastEthernet0/15 unassigned YES unset up
up

FastEthernet0/16 unassigned YES unset up
up

FastEthernet0/17 unassigned YES unset up
up

FastEthernet0/18 unassigned YES unset up
up

FastEthernet0/19 unassigned YES unset up
up

FastEthernet0/20 unassigned YES unset up
up

FastEthernet0/21 unassigned YES unset up
down

FastEthernet0/22 unassigned YES unset up
down

FastEthernet0/23 unassigned YES unset up
down

FastEthernet0/24 unassigned YES unset up
down



SWITCH2#show interface trunk

Port Mode Encapsulation Status Native vlan
Fa0/1 on 802.1q trunking 1

Port Vlans allowed on trunk
Fa0/1 1-4094

Port Vlans allowed and active in management domain
Fa0/1 1-6,99

Port Vlans in spanning tree forwarding state and not pruned
Fa0/1 1-3,5-6



SWITCH2#show cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

Device ID Local Intrfce Holdtme Capability Platform Port ID
SWITCH1 Fas 0/1 155 S I WS-C2950-2Fas 0/20



SWITCH2(vlan)#show current
VLAN ISL Id: 1
Name: default
Media Type: Ethernet
VLAN 802.10 Id: 100001
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 2
Name: VLAN0002
Media Type: Ethernet
VLAN 802.10 Id: 100002
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 3
Name: VLAN0003
Media Type: Ethernet
VLAN 802.10 Id: 100003
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 4
Name: VLAN0004
Media Type: Ethernet
VLAN 802.10 Id: 100004
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 5
Name: VLAN0005
Media Type: Ethernet
VLAN 802.10 Id: 100005
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 6
Name: VLAN0006
Media Type: Ethernet
VLAN 802.10 Id: 100006
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 99
Name: Autotest_Lab
Media Type: Ethernet
VLAN 802.10 Id: 100099
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 1002
Name: fddi-default
Media Type: FDDI
VLAN 802.10 Id: 101002
State: Operational
MTU: 1500
Bridge Type: SRB
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 1003
Name: token-ring-default
Media Type: Token Ring
VLAN 802.10 Id: 101003
State: Operational
MTU: 1500
Bridge Type: SRB
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 1004
Name: fddinet-default
Media Type: FDDI Net
VLAN 802.10 Id: 101004
State: Operational
MTU: 1500
Bridge Number: 1
STP Type: IEEE
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

VLAN ISL Id: 1005
Name: trnet-default
Media Type: Token Ring Net
VLAN 802.10 Id: 101005
State: Operational
MTU: 1500
Bridge Number: 1
STP Type: IBM
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

SWITCH2#show ip int brief
Interface IP-Address OK? Method Status
Protocol
Vlan1 192.168.1.2 YES manual up
up

FastEthernet0/1 unassigned YES unset up
up

FastEthernet0/2 unassigned YES unset up
up

FastEthernet0/3 unassigned YES unset up
up

FastEthernet0/4 unassigned YES unset up
up

FastEthernet0/5 unassigned YES unset up
up

FastEthernet0/6 unassigned YES unset up
up

FastEthernet0/7 unassigned YES unset up
up

FastEthernet0/8 unassigned YES unset up
up

FastEthernet0/9 unassigned YES unset up
up

FastEthernet0/10 unassigned YES unset up
up

FastEthernet0/11 unassigned YES unset up
up

FastEthernet0/12 unassigned YES unset up
up