Getting %SW_MATM-4-MACFLAP_NOTIF in logs of Cisco switches
Hi,
We are having two layer 3 switches, The users during day time reports some voice quality issues. On checking on the switches i am getting the below logs.
Is there anything which i should need to be worry about.
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
There are no fixed interfaces and vlans. I am seeing intefaces and vlans randomly.
Please suggest what could be the possible cause and what should i need to be worry about.
We are having two layer 3 switches, The users during day time reports some voice quality issues. On checking on the switches i am getting the below logs.
Is there anything which i should need to be worry about.
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
12w2d: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.6f00.0124 in vlan 256 is flapping between port Gi0/2 and port Gi0/1
There are no fixed interfaces and vlans. I am seeing intefaces and vlans randomly.
Please suggest what could be the possible cause and what should i need to be worry about.
ASKER
The problem is that we are unable to trace that MAC.
We did observed that this MAC is getting learned from the firewall interfaces.
And we are not getting anything on the firewall.
One more thing. As there are two L3 switches running HSRP b/w them.
I observed one thing that the lets suppose its its Vlan X.
So Vlan X is active in A switch in HSRP. But its root bridge for Vlan x is switch B
Is this the correct design ?
Ideally the switch which is acting as a root bridge should not be the HSRP active switch.
We are still observing the voice issue but now there are now MAC-FLAP alert.
Please suggest what should i check now.
We did observed that this MAC is getting learned from the firewall interfaces.
And we are not getting anything on the firewall.
One more thing. As there are two L3 switches running HSRP b/w them.
I observed one thing that the lets suppose its its Vlan X.
So Vlan X is active in A switch in HSRP. But its root bridge for Vlan x is switch B
Is this the correct design ?
Ideally the switch which is acting as a root bridge should not be the HSRP active switch.
We are still observing the voice issue but now there are now MAC-FLAP alert.
Please suggest what should i check now.
please provide us the whole network structure plan, is there any other switches on the backbone?
ASKER
I have attached the Diagram of the network :-
L3-SW-A and L3-SW-B are having the Vlans configured and running HSRP b/w them.
L3-SW-A --> HSRP active for Vlan 3,4,5,6,7,8,9 , Root-Bridge for Vlan 10
L3-SW-B --> HSRP active for Vlan 10,11 --> Root-Bridge for Vlan 3,4,5,6,7,8,9,11
Voice Vlan 7
There is no QoS on L3 switches for Voice.
The problem is that we are having some kind of jitter in voice or kind of delays. The voice quality is sometime so worse.
Earlier i can see some MAC Flap alerts. But even those are also not there.
So please suggest where could be the issue.
Diagram.jpg
L3-SW-A and L3-SW-B are having the Vlans configured and running HSRP b/w them.
L3-SW-A --> HSRP active for Vlan 3,4,5,6,7,8,9 , Root-Bridge for Vlan 10
L3-SW-B --> HSRP active for Vlan 10,11 --> Root-Bridge for Vlan 3,4,5,6,7,8,9,11
Voice Vlan 7
There is no QoS on L3 switches for Voice.
The problem is that we are having some kind of jitter in voice or kind of delays. The voice quality is sometime so worse.
Earlier i can see some MAC Flap alerts. But even those are also not there.
So please suggest where could be the issue.
Diagram.jpg
ASKER
Hi Genius,
Please if you can help me ....
Please if you can help me ....
ASKER
Please if someone can help me on this.....
This thing which i said above for HSRP and Root-bridge is that correct.
Is that not the ideal sceanrio.
This thing which i said above for HSRP and Root-bridge is that correct.
Is that not the ideal sceanrio.
HI,
I advise to connect each access switch to booth aggregation switches.
Also the best is the root bridge is the HSRP active.
I advise to connect each access switch to booth aggregation switches.
Also the best is the root bridge is the HSRP active.
ASKER
Is it not good to configure the ip SLA jitter.
Why do you neeed SLA jitter?
ASKER
IP SLA Jiitter to observe the if there is any issue with the voice UDP protocol.
I mean just to observe the voice performace.
Thanks
I mean just to observe the voice performace.
Thanks
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
If the WIFI usersers roaming between APs it is normal, if the MAC address belongs to a wired PC there is a loop...