04-18-2016 10:42 PM - edited 03-08-2019 05:24 AM
dears
i am receiving this messages daily
the same mac address is seen for 3 different IP addresses.
i think this is a cluster.
is this normal or a problem ?
2016 Apr 18 17:36:21 Nexus5K01 %FWM-2-STM_LEARNING_RE_ENABLE: Re enabling dynamic learning on all interfaces
2016 Apr 18 17:36:22 Nexus5K01 %FWM-2-STM_LOOP_DETECT: Loops detected in the network for mac 0010.e056.504e among ports Eth103/1/39 and Eth103/1/24 vlan 10 - Disabling dynamic learn notifications for 180 seconds
2016 Apr 18 17:39:22 Nexus5K01 %FWM-2-STM_LEARNING_RE_ENABLE: Re enabling dynamic learning on all interfaces
2016 Apr 18 17:39:22 Nexus5K01 %FWM-2-STM_LOOP_DETECT: Loops detected in the network for mac 0010.e056.504e among ports Eth103/1/24 and Eth103/1/39 vlan 10 - Disabling dynamic learn notifications for 180 seconds
2016 Apr 18 17:42:23 Nexus5K01 %FWM-2-STM_LEARNING_RE_ENABLE: Re enabling dynamic learning on all interfaces
2016 Apr 18 17:42:23 Nexus5K01 %FWM-2-STM_LOOP_DETECT: Loops detected in the network for mac 0010.e056.504e among ports Eth103/1/39 and Eth103/1/24 vlan 10 - Disabling dynamic learn notifications for 180 seconds
2016 Apr 18 17:45:23 Nexus5K01 %FWM-2-STM_LEARNING_RE_ENABLE: Re enabling dynamic learning on all interfaces
2016 Apr 18 17:45:23 Nexus5K01 %FWM-2-STM_LOOP_DETECT: Loops detected in the network for mac 0010.e056.504e among ports Eth103/1/24 and Eth103/1/39 vlan 10 - Disabling dynamic learn notifications for 180 seconds
2016 Apr 18 17:48:23 Nexus5K01 %FWM-2-STM_LEARNING_RE_ENABLE: Re enabling dynamic learning on all interfaces
2016 Apr 18 17:48:23 Nexus5K01 %FWM-2-STM_LOOP_DETECT: Loops detected in the network for mac 0010.e056.504e among ports Eth103/1/39 and Eth103/1/24 vlan 10 - Disabling dynamic learn notifications for 180 seconds
04-18-2016 10:58 PM
You should be concerned. I suggest spending some time understanding what is connected to e103/1/24 and e103/1/39 and why those devices are causing a loop in your network.
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