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Cisco Bug: CSCuo76163 - hsrp/vrrp process crash observed when the process is shutting down

Last Modified

Jul 20, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

5.1.1.BASE 5.1.2.BASE

Description (partial)

The HSRP or VRRP process can occasionally crash when the process is being shutdown, or a virtual interface which the process is configured to use is shutdown or its configuration is changed.

The router must be running IOS-XR 5.1.1, IOS-XR 5.1.2 or IOS-XR 5.2.2, and have HSRP or VRRP configured to use virtual interfaces, for example BVI interfaces.   

Process crashes may occur when the HSRP groups or VRRP sessions on these virtual interface return to the "Init" state after they have been in the "Active/Standby" states for HSRP, or "Master/Backup" states for VRRP.

Returning to "Init" state will happen when the underlying virtual interface is shutdown, the interface's IP address is changed, or the FHRP VIP is changed.
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