2912 Cat5K
|---------trunk--------|
|---------trunk--------|
I'll bet it has to do with your trunk configuration. See the long clip below. it's a 2912 and a cat5K but should be close enough. Without the links being trunks(which require the administrative VLAN which also carries the STP), it works fine. VLAN 100 is on ports SW2 0/1 and C1 3/1. VLAN 200 is one ports SW2 0/2 and C1 3/2. With vlans created and spanning tree enabled, the links come up fine. Keep in mind, no VTP which requires a trunk and admintrative VLAN.
Even with trunks enabled, as long as I have different native VLANs, it comes up as it should.
The difference is I can not do 802.1Q on my cat5K.
MikeS
Console> (enable) sho trunk
* - indicates vtp domain mismatch
Port Mode Encapsulation Status Native vlan
-------- ----------- ------------- ------------ -----------
3/1 on isl trunking 100
3/2 on isl trunking 200
Port Vlans allowed on trunk
-------- ---------------------------------------------------------------------
3/1 2-199,201-1005
3/2 2-99,101-1005
Port Vlans allowed and active in management domain
-------- ---------------------------------------------------------------------
3/1 100
3/2 200
Port Vlans in spanning tree forwarding state and not pruned
-------- ---------------------------------------------------------------------
3/1 100
Console> (enable) sho spantree 3/1
Port Vlan Port-State Cost Priority Portfast Channel_id
------------------------ ---- ------------- ----- -------- ---------- ----------
3/1 100 forwarding 19 32 disabled 0
Switch#sho span inter fa0/1
Interface Fa0/1 (port 13) in Spanning tree 100 is FORWARDING
Port path cost 19, Port priority 128
Designated root has priority 32768, address 00d0.58b6.8981
Designated bridge has priority 32768, address 00d0.58b6.8981
Designated port is 13, path cost 0
Timers: message age 0, forward delay 0, hold 0
BPDU: sent 197, received 717
Switch#
Switch#sho span inter fa0/2
Interface Fa0/2 (port 14) in Spanning tree 200 is FORWARDING
Port path cost 19, Port priority 128
Designated root has priority 32768, address 00d0.58b6.8982
Designated bridge has priority 32768, address 00d0.58b6.8982
Designated port is 14, path cost 0
Timers: message age 0, forward delay 0, hold 0
BPDU: sent 187, received 748
Switch#
------------ CAT 5K config --------------
!
# ***** NON-DEFAULT CONFIGURATION *****
!
!
#time: Thu Jun 20 2002, 15:51:35
!
#version 5.5(13a)
!
!
#test
set test diaglevel complete
!
#frame distribution method
set port channel all distribution mac both
!
#vtp
set vtp domain test
set vlan 1 name default type ethernet mtu 1500 said 100001 state active
set vlan 100 name VLAN0100 type ethernet mtu 1500 said 100100 state active
set vlan 200 name VLAN0200 type ethernet mtu 1500 said 100200 state active
set vlan 1002 name fddi-default type fddi mtu 1500 said 101002 state active
set vlan 1004 name fddinet-default type fddinet mtu 1500 said 101004 state activ
e stp ieee
set vlan 1005 name trnet-default type trbrf mtu 1500 said 101005 state active st
p ibm
set vlan 1003 name token-ring-default type trcrf mtu 1500 said 101003 state acti
ve mode srb aremaxhop 7 stemaxhop 7 backupcrf off
!
#ip
set interface sc0 1 192.168.100.100/255.255.255.0 192.168.100.255
!
#spantree
#vlan <VlanId>
set spantree portcost 1003 80
!
# default port status is enable
!
!
#module 1 : 2-port 100BaseTX Supervisor
!
#module 2 : 12-port 10/100BaseTX Ethernet
!
#module 3 : 12-port 10/100BaseTX Ethernet
set vlan 100 3/1
set vlan 200 3/2
clear trunk 3/1 1,200
set trunk 3/1 on isl 2-199,201-1005; clears VLAN 1 & 200 from trunk
clear trunk 3/2 1,100
set trunk 3/2 on isl 2-99,101-1005; clears VLAN 1 & 100 from trunk
!
#module 4 empty
!
#module 5 empty
end
Console> (enable) Find me at
"Take advantage of the enemy's unreadiness, make your way by unexpected routes, and attack unguarded spots."
Sun Tzu
