Cisco Bug: CSCuq88032 - HSRP standby in vPC will not program G flag if Priority is 0
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 7000 18-Slot Switch
- Cisco Nexus 7700 18-Slot Switch
- Cisco Nexus 7700 10-Slot Switch
- Cisco Nexus 7000 9-Slot Switch
Known Affected Releases
6.1(5) 6.2(8a) 7.1(0)ZD(1)
Description (partial)
Symptom: HSRP VMAC is not programmed with the G flag in the software MAC table on vPC peer who is HSRP standby: RTP-Agg2# sh hsrp brief *:IPv6 group #:group belongs to a bundle P indicates configured to preempt. | Interface Grp Prio P State Active addr Standby addr Group addr Vlan2 2 0 Standby 2.2.2.2 local 2.2.2.3 (conf) RTP-Agg2# sh mac ad ad 0000.0c07.ac02 Legend: * - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC age - seconds since last seen,+ - primary entry using vPC Peer-Link, (T) - True, (F) - False VLAN MAC Address Type age Secure NTFY Ports/SWID.SSID.LID ---------+-----------------+--------+---------+------+----+------------------ * 2 0000.0c07.ac02 static - F F vPC Peer-Link Conditions: This is condition is seen when the HSRP configuration includes a track object and the decrement value will set the priority to less than or equal to zero when the track object is in a down state: interface Vlan2 hsrp 2 priority 80 ip 2.2.2.3 track 10 decrement 80 <<<<<<< This decrement value is greater than or equal to the configured or default priority
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