From: Jason Madsen (madsen.jason@gmail.com)
Date: Fri Jan 02 2009 - 12:25:29 ARST
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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>>
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