Friday, June 1, 2012

The Catalyst 6500 'spanning-tree extend system-id' Command and Creating Extended-range VLANs

Below shows the error messages seen on 12.2(33)SXI releases:
C6500#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
C6500(config)#vlan ?
  WORD        ISL VLAN IDs 1-4094
  access-log  Configure VACL logging
  access-map  Create vlan access-map or enter vlan access-map command mode
  accounting  VLAN accounting configuration
  creation    Switch port access VLAN creation mode
  dot1q       dot1q parameters
  filter      Apply a VLAN Map
  group       Create a vlan group
  internal    internal VLAN
  mapping     Set a VLAN mapping on this device
  port        Set VLAN port related functionality on this device

C6500(config)#vlan 4094
C6500(config-vlan)#name Test_VLAN
C6500(config-vlan)#exit
% Applying VLAN changes may take few minutes.  Please wait...

% Failed to create VLANs 4094
Spanning-tree extend system-id need to be enabled.

C6500(config)#
00:10:52: %SW_VLAN-SP-4-VLAN_CREATE_FAIL: Failed to create VLANs 4094: spanning-tree extend system-id need to be enabled
C6500(config)#
C6500(config)#spanning-tree extend system-id
C6500(config)#
00:12:55: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan. The Bridge IDs of all active STP instances have been updated, which might change the spanning tree topology
00:12:55: %SPANTREE-SP-5-EXTENDED_SYSID: Extended SysId enabled for type vlan. The Bridge IDs of all active STP instances have been updated, which might change the spanning tree topology
C6500(config)# 
C6500(config)#vlan 4094
C6500(config-vlan)#name Test_VLAN
C6500(config-vlan)#exit
% Applying VLAN changes may take few minutes.  Please wait...

C6500(config)#do sh vlan

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active
1002 fddi-default                     act/unsup
1003 token-ring-default               act/unsup
1004 fddinet-default                  act/unsup
1005 trnet-default                    act/unsup
4094 Test_VLAN                        active

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1    enet  100001     1500  -      -      -        -    -        0      0
1002 fddi  101002     1500  -      -      -        -    -        0      0
1003 tr    101003     1500  -      -      -        -    -        0      0
1004 fdnet 101004     1500  -      -      -        ieee -        0      0
1005 trnet 101005     1500  -      -      -        ibm  -        0      0
4094 enet  104094     1500  -      -      -        -    -        0      0

Remote SPAN VLANs
------------------------------------------------------------------------------


Primary Secondary Type              Ports
------- --------- ----------------- ------------------------------------------

C6500(config)#
C6500(config)#no spanning-tree extend system-id
% Command "no spanning-tree extend system-id " was not accepted.
  extended system-id feature remains enabled due to extended VLAN existence.
C6500(config)#
C6500(config)#no vlan 4094
% Applying VLAN changes may take few minutes.  Please wait...

C6500(config)#
C6500(config)#no spanning-tree extend system-id
C6500(config)#
00:14:49: %SPANTREE-5-EXTENDED_SYSID: Extended SysId disabled for type vlan. The Bridge IDs of all active STP instances have been updated, which might change the spanning tree topology
00:14:49: %SPANTREE-SP-5-EXTENDED_SYSID: Extended SysId disabled for type vlan. The Bridge IDs of all active STP instances have been updated, which
might change the spanning tree topology
C6500(config)#



Below shows the different error messages seen on 12.2(33)SXH releases:
C6500(config)#vlan 4094
C6500(config-vlan)#exit
% Applying VLAN changes may take few minutes.  Please wait...
%Failed to commit extended VLAN(s) changes.

C6500(config)#
00:05:51: %SW_VLAN-SP-4-VLAN_CREATE_FAIL: Failed to create VLANs 4094: spanning-tree extend system-id need to be enabled
C6500(config)#

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