Cisco Bug: CSCup42943 - DMAC 0000.0000.0000 loops endlessly between fabricpath peers
Last Modified
Nov 27, 2020
Products (8)
- CiscoPro Workgroup EtherSwitch Software
- Cisco Nexus 7000 10-Slot Switch
- Cisco Nexus 7000 4-Slot Switch
- Cisco Nexus 7700 6-Slot Switch
- Cisco Nexus 7700 18-Slot Switch
- Cisco Nexus 7000 18-Slot Switch
- Cisco Nexus 7000 9-Slot Switch
- Cisco Nexus 7700 10-Slot Switch
Known Affected Releases
6.2(6) 6.2(8)S2
Description (partial)
Symptom: In a mixed VDC M2/F2E running fabricpath, a frame with DMAC 0000.0000.0000 is looping endlessly between the fabricpath peers. A mac flap can be seen between the GPC and peer SW.ID This could increase the bandwidth utilizaiton on the link. Conditions: Issue seems to be seen in a M2/F2E chassis running fabricpath. This bug applies to 6.2(6) and 6.2(8) only.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Status
- Severity
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases