Cisco Bug: CSCup74458 - few seconds of packet loss on vpc secondary link bringup
Last Modified
Mar 30, 2018
Products (9)
- Cisco Nexus 6000 Series Switches
- Cisco Nexus 5596UP Switch
- Cisco Nexus 5548P Switch
- Cisco Nexus 6004 Switch
- Cisco Nexus 5672UP Switch
- Cisco Nexus 6001 Switch
- Cisco Nexus 5548UP Switch
- Cisco Nexus 56128P Switch
- Cisco Nexus 5596T Switch
Known Affected Releases
6.0(2)N2(3) 7.0(2)N1(1)
Description (partial)
Symptom: Few seconds of packet loss seen on VPC link bringup. Drops would correspond with PIF drop counter on fex uplink port N6K-2(config-if)# show platform fwm info pif ethernet 1/7/1 | grep drop Eth1/7/1 pd: tx stats: bytes 204948156412 frames 2328371667 discard 0 drop 0 Eth1/7/1 pd: rx stats: bytes 177822996614 frames 2388580485 discard 0 drop 1173850 <---HERE Conditions: VPC is being restored on a Nexus 5K/6K and traffic re-hashes to the newly brought up VPC. The delay is due to VLAN programming on the VPC trunk.
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Bug Details Include
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