When the LACP interface is configured, the master VAP is used to send the LACP packets. If the LACP is shared between multiple VAP groups, the LACP master VAP is the master VAP of the VAP group with the lowest VAP group ID.
To find the VAP group ID run the following command from the CPM prompt:#/usr/bin/psql -U guest running-config -c "SELECT vfpgroupid, vfpgroupname FROM vfpGroupTable"
[[email protected] admin]# /usr/bin/psql -U guest running-config -c "SELECT vfpgroupid, vfpgroupname FROM vfpGroupTable"
vfpgroupid | vfpgroupname
1 | fw
2 | fw2
(4 rows)The VAP-group id appears in the left hand column
To find the master VAP run the following command:# show ap-vap-mapping
Module Slot Status VAP IP Address VAP Group Index Master (true/false)
AP3 5 Active 188.8.131.52 fw 1 false
AP4 6 Active 184.108.40.206 fw2 1 false
AP5 7 Active 220.127.116.11 fw 2 true
AP9 11 Active 18.104.22.168 fw2 2 true
In this case fw
is the VAP group with lowest ID and fw_2(AP5)
is the LACP master VAP.
is reloaded, then AP3
will become the master VAP for the VAP group fw
and for the LACP interface. In this scenario, the priority delta of the group interface MLT1
will not decrease and the failover will not occur.
If the VAP group fw
is reloaded, then the priority delta of the group interface MLT1
will decrement by 20 in both failover groups until the LACP master VAP is available. This might cause an unexpected failover. # reload vap-group fw
# show vrrp detail-status
Execute "show vrrp detail-status-help" to see help for this command.
FG_ID Status Priority Delta Type Component
2 Master 234/254 0 vr inside/10/0/0
2 Master 234/254 -20 mg MLT1
3 Master 234/254 0 vr inside/11/0/0
3 Master 234/254 -20 mg MLT1