VRRP
7750 SR OS Router Configuration Guide Page 185
The following example illustrates a LAG priority event and it’s interaction with the hold set timer
in changing the in-use priority.
The following state and timer settings are used for the LAG events displayed in Table 6:
• User-defined thresholds: 2 ports down 4 ports down 6 ports down
• LAG configured ports: 8 ports
• Hold set timer (hold-set): 5 seconds
Table 6: LAG Events
Time LAG Port State Parameter State Comments
0 All ports down Event State Set - 8 ports down
Event Threshold 6 ports down
Hold Set Timer 5 seconds Set to hold-set parameter
1 One port up Event State Set - 8 ports down Cannot change until Hold Set Timer expires
Event Threshold 6 ports down
Hold Set Timer 5 seconds Event does not affect timer
2 All ports up Event State Set - 8 ports down Still waiting for Hold Set Timer expires
Event Threshold 6 ports down
Hold Set Timer 3 seconds
5 All ports up Event State Cleared - All ports up
Event Threshold None Event cleared
Hold Set Timer Expired
100 Five ports down Event State Set - 5 ports down
Event Threshold 4 ports down
Hold Set Timer Expired Set to hold-set parameter
102 Three ports down Event State Set - 5 ports down
Event Threshold 4 ports down
Hold Set Timer 3 seconds
103 All ports up Event State Set - 5 ports down
Event Threshold 4 ports down
Hold Set Timer 2 second
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