From: sajid mavani (sajidmavani@gmail.com)
Date: Sat Jan 03 2009 - 07:31:08 ARST
Hi Jason,
Sorry for the late reply, I dont have a access to the switches as I was
doing a remote session online. As far as my knowledge goes I dont think
that bpdu-filter or spaning tree was disable.. I just had to do a layer 2
etherchanel between all the 4 switches .. as i enabled lacp on it .. I
started gettting that error message,
Kindly let me know in such cases if you get this kind of error messages,
what all trouuble shooting steps could be performed.
Thanks everyone for your guidance and jason sorry once again for replying
late,
Have a ncie day.
Regards
Sajid
On Fri, Jan 2, 2009 at 7:55 PM, Jason Madsen <madsen.jason@gmail.com> wrote:
> you don't have bpdu-filter or spanning-tree disable on any of your trunk
> links, do you?
>
>
>
>
> On Fri, Jan 2, 2009 at 7:17 AM, Jason Madsen <madsen.jason@gmail.com>wrote:
>
>> maybe you've created a spanning tree loop. do you have physical access to
>> the switch, or is a remote rack type situation?
>>
>>
>> On Thu, Jan 1, 2009 at 10:12 PM, sajid mavani <sajidmavani@gmail.com>wrote:
>>
>>> Hello Everyone,
>>>
>>>
>>> Please let me know what could I do to get this resolved..
>>>
>>>
>>> When I created a etherchanel between SW1 & SW2 .. I got the following
>>> error
>>> message listed below.. Please let me know how would i get this resolved,
>>> as
>>> I have got this similar type of messages on many occasions.
>>>
>>>
>>> {Configuration used
>>>
>>>
>>> SW1 & SW2
>>>
>>>
>>> conf t
>>>
>>>
>>> int range fas 0/19 - 20
>>>
>>> switchport trunk encapsulation dot1q
>>>
>>> switchport mode trunk
>>>
>>> chanel-group 1 mode active ( lacp) }
>>>
>>>
>>> Below is the error message i received.
>>>
>>> SW2#
>>>
>>> %SW_MATM-4-MACFLAP_NOTIF: Host *0030.8587.f331* in vlan 1 is flapping
>>> between port Fa0/7 and port Po1
>>>
>>> %SW_MATM-4-MACFLAP_NOTIF: Host 0030.8587.f331 in vlan 1 is flapping
>>> between
>>> port Fa0/7 and port Po1
>>>
>>> *
>>> *
>>>
>>> *####################################################################
>>> *
>>>
>>> *Trouble shooting the problem *
>>>
>>> * *
>>>
>>>
>>>
>>> *1) Below oput shows this for verification *
>>>
>>>
>>>
>>> SW2#sh mac address-table vlan 1
>>>
>>> Mac Address Table
>>>
>>> -------------------------------------------
>>>
>>>
>>>
>>> Vlan Mac Address Type Ports
>>>
>>> ---- ----------- -------- -----
>>>
>>>
>>>
>>> 1 001a.2fd4.3d17 DYNAMIC Po3
>>>
>>> *1 0030.8587.f331 DYNAMIC Po1*
>>>
>>> * 1 0030.8587.f332 DYNAMIC Po1*
>>>
>>>
>>>
>>>
>>> 2)
>>>
>>> * *
>>>
>>> *SW3#sh mac address-table address 0030.8587.f331 *
>>>
>>> * Mac Address Table*
>>>
>>> *-------------------------------------------*
>>>
>>> * *
>>>
>>> *Vlan Mac Address Type Ports*
>>>
>>> *---- ----------- -------- -----*
>>>
>>> 1 *0030 .8587.f331* DYNAMIC Po1
>>>
>>> Total Mac Addresses for this criterion: 1
>>>
>>>
>>> 3)
>>>
>>>
>>>
>>> SW2#clear mac address-table dynamic interface port-channel 1 vlan 1
>>>
>>>
>>> SW2 #clear mac address-table dynamic interface port-channel 1 vlan 1
>>>
>>>
>>>
>>>
>>>
>>> ............................................................................
>>>
>>>
>>>
>>> Still I am getting the same error message.
>>>
>>>
>>>
>>>
>>>
>>> I would be great full if anyone could let me know how to get this
>>> resolved.
>>>
>>>
>>>
>>> Regards
>>>
>>>
>>> Sajid
>>>
>>>
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