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Cisco Bug: CSCuj33023 - MTM-SLOT1-2-MULTICAST_SOURCE_MAC_LEARNT

Last Modified

Jun 17, 2020

Products (5)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases

6.1(3)

Description (partial)

Symptom:
The logging level provided in the following syslog message should be lowered to informational .

%MTM-SLOT2-2-MULTICAST_SOURCE_MAC_LEARNT: Inserted dynamically learnt multicast source mac xx:xx:xx:xx:xx:xx! Please execute from switch: clear mac address table dynamic multicast-entries

Conditions:
Frames with a broadcast or multicast source address flood bit set (first octet, last bit equalling 1)arriving on F2 linecard, will lead to the clipper ASIC mistakenly dynamically learn these source addresses.

Related Community Discussions

<key>CSCuj33023</key>%20-%20MTM-SLOT1-2-MULTICAST_SOURCE_MAC_LEARNT
I have multiple nexus 7ks, which were running 6.2(10) upgraded to 7.2(2)D1(2), but still seeing this problem. Anyone else?
Latest activity: Oct 21, 2017
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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