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86 Nortel Networks L2/3 Ethernet Switch Module for IBM Eserver BladeCenter
Ensure that PVST is selected as Spanning Tree mode, enter:
conf t
spanning-tree mode pvst
Core1 should become the Root Bridge for VLAN 5 and 10 while being backup Root for VLAN
20 and 99:
spanning-tree vlan 1-10 root primary
spanning-tree vlan 11-4094 root secondary
end
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:
spanning-tree vlan 1-10 root secondary
spanning-tree vlan 11-4094 root primary
end
Reenable the ports
After verifying the correct cabling between all the devices, the ports can be re-enabled.
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 g0/1-2, g0/11-12
no shut
Verify the Spanning Tree status
As shown in Example 7-11, the port status and the VLAN assignment could be verified by
entering info/link and info/port on the GbESM.
Example 7-11 Verifying port status and VLAN assignment
>> GbESM_1 - Configuration# /i/link
------------------------------------------------------------------
Alias Port Speed Duplex Flow Ctrl Link
----- ---- ----- -------- --TX-----RX-- ------
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