Switch2 is the root bridge. Bridge ID MAC ADDR and Designated Root are
identical, and cost is 0. Switch1's configuration is incorrect. Recheck
your VLAN and STP configurations.
HTH,
Evan
-----Original Message-----
From: Giggsy [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 02, 2001 7:59 AM
To: [EMAIL PROTECTED]
Subject: Spanning Tree and Root Bridge Question
Hi
Pls refer to my Switch1 Spanning Tree display. Is this my Root Bridge?
How come the MAC for Switch1 is 00-00-00-00-00-00?
Any problem with this switch? it is so different from Switch2 (pls refer to
the below)
Switch1 (enable) sh spantree
VLAN 1
Spanning tree enabled
Spanning tree type ieee
Designated Root 00-00-00-00-00-00
Designated Root Priority 0
Designated Root Cost 0
Designated Root Port 1/0
Root Max Age 0 sec Hello Time 0 sec Forward Delay 0 sec
Bridge ID MAC ADDR 00-00-00-00-00-00
Bridge ID Priority 32768
Bridge Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Port Vlan Port-State Cost Priority Portfast
Channel_id
------------------------ ---- ------------- ----- -------- ---------- ------
----
Switch1 (enable)
========================================================
Switch2> (enable) sh spantree
VLAN 1
Spanning tree enabled
Spanning tree type ieee
Designated Root 00-02-fc-10-40-00
Designated Root Priority 32768
Designated Root Cost 0
Designated Root Port 1/0
Root Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Bridge ID MAC ADDR 00-02-fc-10-40-00
Bridge ID Priority 32768
Bridge Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Port Vlan Port-State Cost Priority Fast-Start Group-Method
--------- ---- ------------- ----- -------- ---------- ------------
2/1 1 forwarding 19 32 disabled
2/9 1 not-connected 100 32 disabled
2/10 1 not-connected 100 32 disabled
2/11 1 not-connected 100 32 disabled
2/12 1 not-connected 100 32 disabled
2/13 1 not-connected 100 32 disabled
2/14 1 not-connected 100 32 disabled
2/15 1 not-connected 100 32 disabled
2/16 1 not-connected 100 32 disabled
Switch2> (enable)
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