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LACP Blocking/unblocking fills log

psycho.chicken
Regular Advisor

LACP Blocking/unblocking fills log

Why is my log getting filled with certain ports saying there on-line offline, lacp blocking and lacp unblocking...

I have made them edge-ports...

Have current firmware...

mstp is enabled...

-------------

I 03/27/07 13:56:41 ports: port 23 is Blocked by STP
I 03/27/07 13:56:41 ports: port 23 is now on-line
I 03/27/07 15:39:40 ports: port 23 is now off-line
I 03/27/07 15:39:42 ports: port 23 is Blocked by LACP
I 03/27/07 15:39:43 ports: port 23 is now off-line
I 03/27/07 15:39:43 ports: port 23 is Blocked by LACP
I 03/27/07 15:39:43 ports: port 23 is Blocked by STP
I 03/27/07 15:39:43 ports: port 23 is now on-line
I 03/27/07 15:44:58 ports: port 2 is now off-line
I 03/27/07 15:45:00 ports: port 2 is Blocked by LACP
I 03/27/07 15:45:00 ports: port 2 is now off-line
I 03/27/07 15:45:00 ports: port 2 is Blocked by LACP
I 03/27/07 15:45:00 ports: port 2 is Blocked by STP
I 03/27/07 15:45:00 ports: port 2 is now on-line
I 03/27/07 15:47:26 ports: port 2 is now off-line
I 03/27/07 15:47:29 ports: port 2 is Blocked by LACP
I 03/27/07 15:47:29 ports: port 2 is now off-line
I 03/27/07 15:47:29 ports: port 2 is Blocked by LACP
I 03/27/07 15:47:29 ports: port 2 is Blocked by STP
I 03/27/07 15:47:29 ports: port 2 is now on-line
I 03/27/07 15:48:44 ports: port 2 is now off-line
I 03/27/07 15:48:46 ports: port 2 is Blocked by LACP
I 03/27/07 15:48:47 ports: port 2 is now off-line
I 03/27/07 15:48:47 ports: port 2 is Blocked by LACP
I 03/27/07 15:48:47 ports: port 2 is Blocked by STP
I 03/27/07 15:48:47 ports: port 2 is now on-line
I 03/27/07 16:50:24 ports: port 47 is now off-line
I 03/27/07 16:50:26 ports: port 47 is Blocked by LACP
I 03/27/07 16:50:27 ports: port 47 is now off-line
I 03/27/07 16:50:27 ports: port 47 is Blocked by LACP
I 03/27/07 16:50:27 ports: port 47 is Blocked by STP
I 03/27/07 16:50:27 ports: port 47 is now on-line
I 03/27/07 16:52:46 ports: port 47 is now off-line
I 03/27/07 16:52:49 ports: port 47 is Blocked by LACP
I 03/27/07 16:52:50 ports: port 47 is now off-line
I 03/27/07 16:52:50 ports: port 47 is Blocked by LACP
I 03/27/07 16:52:50 ports: port 47 is Blocked by STP


-----------------

Nothing is being plugged or unplugged...

I have one switch where i have set -
spanning-tree 1-48 edge-port
(49 is uplink)
2 REPLIES
Mohieddin Kharnoub
Honored Contributor

Re: LACP Blocking/unblocking fills log

Hi

You have unstable STP topology, check the output of this command : show span, see the fields: Topology Change Count.

Enable PBDU-Filtering on User's Ports.
Switch(config)Vlan 1 span [ports]bpdu-filter

Good Luck !!!
Science for Everyone
psycho.chicken
Regular Advisor

Re: LACP Blocking/unblocking fills log

I just read a post about

no interface "port #" lacp

will this stop the lacp on those ports as i have no desire for lacp on 1-48

I will read up on bpdu-filter
Does edge-port do the same thing?