Supported Platforms
Related Documentation
- EX Series, QFabric System, QFX Series standalone switches
- show vrrp
- QFX Series
- Troubleshooting VRRP
failover-delay
Syntax
Hierarchy Level
Release Information
Statement introduced in Junos OS Release 11.3 for the QFX Series.
Description
If you configure multiple VRRP groups on an interface (using multiple VLANs), traffic for some of the groups might be briefly dropped if a failover occurs. This can happen because the new master must send gratuitous ARP replies for each VRRP group to update the ARP tables in the connected devices, and there is a short delay between each gratuitous ARP reply. Traffic sent by devices that have not yet received the gratuitous ARP reply is dropped (until the device receives the reply and learns the MAC address of the new master).
If you configure a failover delay, the new master delays sending gratuitous ARP replies for the period that you set. This allows the new master to send the ARP replies for all of the VRRP groups simultaneously.
Options
milliseconds—Specify the failover delay time, in milliseconds.
Range: 50 through 2000
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Related Documentation
- EX Series, QFabric System, QFX Series standalone switches
- show vrrp
- QFX Series
- Troubleshooting VRRP
Published: 2014-07-23
Supported Platforms
Related Documentation
- EX Series, QFabric System, QFX Series standalone switches
- show vrrp
- QFX Series
- Troubleshooting VRRP
