Need help please
For some reason that I can't figure out my cat1 switch doesn't seem to show
me an instance of spanning tree for vlan 240, any ideas why?
*Cat1-Rapid#show vlan brief *
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
1 default active Fa0/3, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/12,
Fa0/13
Gi0/1, Gi0/2
12 VLANB active Fa0/1, Fa0/2
40 VLANC active Fa0/4, Fa0/14, Fa0/15,
Fa0/16
Fa0/17, Fa0/18
100 VLANA active Fa0/11
200 VLANE active
*240 VLAN0240 active *
300 VLANF active
567 VLAND active Fa0/5
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
2200 VLAN2200 active
2300 VLAN2300 active
2567 VLAN2567 active
*Cat1-Rapid#show spanning-tree vlan 240*
Spanning tree instance(s) for vlan 240 does not exist.
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*f/023 & 24 to cat1......*
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Port 25 (FastEthernet0/23) of VLAN0240 is root forwarding
Port path cost 19, Port priority 128, Port Identifier 128.25.
Designated root has priority 24816, address 30e4.db1d.1c80
Designated bridge has priority 24816, address 30e4.db1d.1c80
Designated port id is 128.21, designated path cost 0
Timers: message age 15, forward delay 0, hold 0
Number of transitions to forwarding state: 17
Link type is point-to-point by default
BPDU: sent 277, received 836
Port 26 (FastEthernet0/24) of VLAN0240 is alternate blocking
Port path cost 19, Port priority 128, Port Identifier 128.26.
Designated root has priority 24816, address 30e4.db1d.1c80
Designated bridge has priority 24816, address 30e4.db1d.1c80
Designated port id is 128.21, designated path cost 0
Timers: message age 15, forward delay 0, hold 0
Number of transitions to forwarding state: 12
Link type is point-to-point by default
BPDU: sent 41, received 1069
*
*Cat2-Rapid#show vlan brief *
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
1 default active Fa0/2, Fa0/3, Fa0/4, Fa0/5
Fa0/10, Fa0/11, Gi0/1, Gi0/2
12 VLANB active
40 VLANC active Fa0/14, Fa0/15, Fa0/16,
Fa0/17
Fa0/18
100 VLANA active Fa0/1
200 VLANE active Fa0/8, Fa0/12
*240 VLAN0240 active *
300 VLANF active Fa0/9, Fa0/13
567 VLAND active Fa0/6, Fa0/7
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
2200 VLAN2200 active
2300 VLAN2300 active
2567 VLAN2567 active
*Cat2-Rapid#show spanning-tree vlan 240*
VLAN0240
Spanning tree enabled protocol rstp
Root ID Priority 24816
Address 30e4.db1d.1c80
Cost 19
Port 25 (FastEthernet0/23)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 33008 (priority 32768 sys-id-ext 240)
Address 0016.c8bc.1100
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Fa0/21 Altn BLK 19 128.23 P2p
Fa0/22 Altn BLK 19 128.24 P2p
Fa0/23 Root FWD 19 128.25 P2p
Fa0/24 Altn BLK 19 128.26 P2p
Po23 Altn BLK 100 128.232 P2p
*Cat3-Rapid#show vlan brief *
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
1 default active Gi1/0/1, Gi1/0/2, Gi1/0/3
Gi1/0/6, Gi1/0/7, Gi1/0/8
Gi1/0/9
12 VLAN0012 active
40 VLAN0040 active
100 VLAN0100 active
200 VLAN0200 active
*240 VLAN0240 active Gi1/0/4*
300 VLAN0300 active
567 VLAN0567 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
2200 VLAN2200 active
2300 VLAN2300 active
2567 VLAN2567 active
2600 VLAN2600 active
2601 VLAN2601 active
2602 VLAN2602 active
*Cat3-Rapid#show spanning-tree vlan 240*
VLAN0240
Spanning tree enabled protocol rstp
Root ID Priority 24816
Address 30e4.db1d.1c80
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 24816 (priority 24576 sys-id-ext 240)
Address 30e4.db1d.1c80
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Gi1/0/4 Desg FWD 19 128.4 P2p
*Gi1/0/21 Desg FWD 19 128.21 P2p **<<<<to cat1*
*Gi1/0/22 Back BLK 19 128.22 P2p **<<<<to cat1*
Gi1/0/23 Desg FWD 19 128.23 P2p
Gi1/0/24 Desg FWD 19 128.24 P2p
Po23 Desg FWD 100 128.688 P2p
*Cat4-Rapid#show vlan brief *
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
1 default active
12 VLAN0012 active
40 VLAN0040 active
100 VLAN0100 active
200 VLAN0200 active
*240 VLAN0240 active *
300 VLAN0300 active
500 VLAN0500 active Gi1/0/1, Gi1/0/2, Gi1/0/3
Gi1/0/4, Gi1/0/5
567 VLAN0567 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
1500 VLAN1500 active Gi1/0/1, Gi1/0/2, Gi1/0/3
Gi1/0/4, Gi1/0/5
2200 VLAN2200 active Gi1/0/8
2300 VLAN2300 active Gi1/0/9
2567 VLAN2567 active
2600 VLAN2600 active
2601 VLAN2601 active
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
2602 VLAN2602 active
*
*
*Cat4-Rapid#show spanning-tree vlan 240*
VLAN0240
Spanning tree enabled protocol rstp
Root ID Priority 24816
Address 30e4.db1d.1c80
Cost 19
Port 23 (GigabitEthernet1/0/23)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 28912 (priority 28672 sys-id-ext 240)
Address 30e4.db1a.0300
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Gi1/0/21 Desg FWD 19 128.21 P2p
Gi1/0/22 Desg FWD 19 128.22 P2p
Gi1/0/23 Root FWD 19 128.23 P2p
Gi1/0/24 Altn BLK 19 128.24 P2p
*Po14 Altn BLK 100 128.616 P2p <<<<to cat1*
cat 3 is root bridge for this vlan, but it seems cat1 is just passing the
bpdu's through its ports 23 & 24 to cat2 from above output and has not
instance of vlan 240 itself
vtp in transparent on all bridges
please help
Tony
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