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Ensure that PVST is selected as Spanning Tree mode, enter:
conf t
Core1 should become the Root Bridge for VLAN 5 and 10 while being backup Root for VLAN
20 and 99:
Vice versa for Core2, so that it will be elected as Root Bridge for VLAN 20 and 99, backing up the Root for VLAN 5 and 10:
Reenable the ports
After verifying the correct cabling between all the devices, the ports can be
Enabling the ports on GbESM_1 and GbESM_2
/oper/port EXT1/ena /oper/port EXT2/ena /oper/port EXT5/ena /oper/port EXT6/ena
Enabling the ports on Core1 and Core2
conf t
int range
Verify the Spanning Tree status
As shown in Example
Example 7-11 Verifying port status and VLAN assignment
>>GbESM_1 - Configuration# /i/link
Alias | Port Speed | Duplex | Flow Ctrl | Link |
-----
INT1 | 1 | 1000 | full | yes | yes | up |
INT2 | 2 | 1000 | full | yes | yes | up |
INT3 | 3 | 1000 | full | yes | yes | up |
INT4 | 4 | 1000 | full | yes | yes | up |
INT5 | 5 | 1000 | full | yes | yes | up |
INT6 | 6 | 1000 | full | yes | yes | up |
INT7 | 7 | 1000 | full | yes | yes | up |
INT8 | 8 | 1000 | full | yes | yes | down |
INT9 | 9 | 1000 | full | yes | yes | down |
INT10 | 10 | 1000 | full | yes | yes | down |
INT11 | 11 | 1000 | full | yes | yes | down |
INT12 | 12 | 1000 | full | yes | yes | down |
INT13 | 13 | 1000 | full | yes | yes | down |
INT14 | 14 | 1000 | full | yes | yes | down |
MGT1 | 15 | 100 | full | yes | yes | up |
MGT2 | 16 | 100 | full | yes | yes | disabled |
EXT1 | 17 | 1000 | full | no | no | up |
EXT2 | 18 | 1000 | full | no | no | up |
86Nortel Networks L2/3 Ethernet Switch Module for IBM Eserver BladeCenter