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HP Procurve 2920 and Cisco 2960 Spanning-tree issue

Weems
Occasional Visitor

HP Procurve 2920 and Cisco 2960 Spanning-tree issue

I am working with a pair of stacked HP Procurve 2920-48G and I am attempting to connect a Cisco 2960G switch to port 1/28 on the HP side from port 0/32 on the cisco side.

When I connect the switches, the ports link up and according to the logs

Cisco 2920

002261: Dec 14 13:57:11.802: %LINK-3-UPDOWN: Interface GigabitEthernet0/32, chan
ged state to down
002262: Dec 14 13:57:18.136: %LINK-3-UPDOWN: Interface GigabitEthernet0/32, chan
ged state to up 

 HP 2920

I 12/15/15 13:52:27 00435 ports: ST1-CMDR: port 1/28 is Blocked by STP
I 12/15/15 13:52:36 00077 ports: ST1-CMDR: port 1/28 is now off-line
I 12/15/15 13:52:47 00435 ports: ST1-CMDR: port 1/28 is Blocked by STP
I 12/15/15 13:53:21 00076 ports: ST1-CMDR: port 1/28 is now on-line
I 12/15/15 13:54:07 00077 ports: ST1-CMDR: port 1/28 is now off-line
I 12/15/15 13:54:32 00435 ports: ST1-CMDR: port 1/28 is Blocked by STP
I 12/15/15 13:55:06 00076 ports: ST1-CMDR: port 1/28 is now on-line
I 12/15/15 13:56:26 00077 ports: ST1-CMDR: port 1/28 is now off-line

I noticed that the Cisco port is configured is configured as shown below and the HP is configured with Spanning-tree on all ports. 

interface GigabitEthernet0/32
spanning-tree portfast disable

When I connect the two switches I am unable to pring from the cisco to the hp and vice-versa.

 

Any idea?

1 REPLY
16again
Respected Contributor

Re: HP Procurve 2920 and Cisco 2960 Spanning-tree issue

Hard to answer without configs.Make sure admin-edge bpdu guard port security is disabledon those ports