Many "MOVING MAC" messages being reported in nvOS.log on EMSA appliance.
Article ID: KB0093602
Updated On:
| Products | Versions |
|---|---|
| TIBCO Enterprise Message Service Appliance | - |
| Not Applicable | - |
Description
Description:
Sep12.21:53:40.nvOSd_bcast.c:523: nvOS_l2_entry_check_and_add: MOVING MAC = 0x0:1:d7:c2:bd:c4, IP = 172.16.1.104 from port 30 => 41
Symptoms:
The MOVING MAC issue will cause interruptions in the connectivity roughly every 30 seconds. Sometimes these “pauses” will be long enough to drop a connection. On occasion it just appears as intermittent delays in packet arrival.
Cause:
N/A
In the nvOS.log on an EMSA appliance, there are many "MOVING MAC" messages:
Sep12.21:53:40.nvOSd_bcast.c:523: nvOS_l2_entry_check_and_add: MOVING MAC = 0x0:1:d7:c2:bd:c4, IP = 172.16.1.104 from port 30 => 41
Symptoms:
The MOVING MAC issue will cause interruptions in the connectivity roughly every 30 seconds. Sometimes these “pauses” will be long enough to drop a connection. On occasion it just appears as intermittent delays in packet arrival.
Cause:
N/A
Issue/Introduction
Many "MOVING MAC" messages being reported in nvOS.log on EMSA appliance.
Resolution
The “MOVING MAC” indicates the uplink trunk is misconfigured. The network side switch has the far-end ports of the 41/42 uplink cables, both active at the same time which is incorrect. Either they are not “trunked together” or they are configured in an Active-Active mode, instead of the desire Active-Passive (fast) mode. A short term workaround to this problem is to disconnect one of the cables from the appliance. This will avoid the potential performance problems related to the uplink trunk being misconfigured.
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