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The following is the sample output on IRF 1:
%Jan
1 05:19:10:176 2019 H3C STM/3/STM_LINK_STATUS_DOWN: IRF port 2 is down.
%Jan 1 05:19:10:184 2019 H3C IFNET/3/PHY_UPDOWN: HundredGigE1/0/27 link status is down.
%Jan 1 05:19:10:184 2019 H3C IFNET/3/PHY_UPDOWN: HundredGigE1/0/28 link status is down.
%Jan
1 05:19:10:176 2019 H3C STM/3/STM_LINK_STATUS_DOWN: IRF port 1 is down.
%Jan 1 05:19:10:184 2019 H3C IFNET/3/PHY_UPDOWN: HundredGigE2/0/25 link status is down.
%Jan 1 05:19:10:184 2019 H3C IFNET/3/PHY_UPDOWN: HundredGigE2/0/26 link status is down.
%Jan 1 05:19:10:186 2019 H3C DEV/3/BOARD_REMOVED: Board is removed from Slot 3, type is
MAIN_BOARD_TYPE_54QT.
%Jan 1 05:19:10:186 2019 H3C DEV/3/BOARD_REMOVED: Board is removed from Slot 4, type is
MAIN_BOARD_TYPE_54QT.
The following is the sample output from IRF 2:
%Jan 1 05:53:20:784 2019 H3C HA/5/HA_STANDBY_TO_MASTER: Standby board in slot 3 changes
to master.
%Jan 1 05:53:20:831 2019 H3C DEV/3/BOARD_REMOVED: Board is removed from Slot 1, type is
MAIN_BOARD_TYPE_56HF.
%Jan 1 05:53:20:831 2019 H3C DEV/3/BOARD_REMOVED: Board is removed from Slot 2, type is
MAIN_BOARD_TYPE_56HF.
%Jan 1 05:53:20:860 2019 H3C DEV/1/MAD_DETECT: Multi-active devices detected, please fix
it.
%Jan
1 05:53:20:886 2019 H3C IFNET/3/PHY_UPDOWN: M-GigabitEthernet0/0/0 link status is
down.
%Jan
1 05:53:20:887 2019 H3C IFNET/5/LINK_UPDOWN: Line protocol on the interface
M-GigabitEthernet0/0/0 is down.
%Jan 1 05:53:20:912 2019 H3C IFNET/3/PHY_UPDOWN: HundredGigE3/0/29 link status is down.
%Jan
1 05:53:20:914 2019 H3C IFNET/5/LINK_UPDOWN: Line protocol on the interface
HundredGigE3/0/29 is down.
%Jan 1 05:53:20:912 2019 H3C IFNET/3/PHY_UPDOWN: HundredGigE3/0/30 link status is down.
%Jan
1 05:53:20:914 2019 H3C IFNET/5/LINK_UPDOWN: Line protocol on the interface
HundredGigE3/0/30 is down.
%Jan 1 05:53:20:912 2019 H3C IFNET/3/PHY_UPDOWN: HundredGigE4/0/29 link status is down.
%Jan
1 05:53:20:914 2019 H3C IFNET/5/LINK_UPDOWN: Line protocol on the interface
HundredGigE4/0/29 is down.
%Jan 1 05:53:20:912 2019 H3C IFNET/3/PHY_UPDOWN: HundredGigE4/0/30 link status is down.
%Jan
1 05:53:20:914 2019 H3C IFNET/5/LINK_UPDOWN: Line protocol on the interface
HundredGigE4/0/30 is down.
The output shows that initially IRF 2 took over the master role because it falsely identified that IRF 1
has failed. LACP MAD shut down the service interfaces on IRF 2 after it detected an MAD conflict.
# If IRF 1 fails, use the mad restore command on IRF 2 to recover the member devices and bring
up all service interfaces that have been shut down by LACP MAD.
NOTE:
You can log in to IRF 2 through the console port on Device C or Device D. If you have excluded a
service interface from the MAD shutdown action, you can Telnet to IRF 2 through the service
interface.
<Sysname> system-view
[Sysname] mad restore
This command will restore the device from multi-active conflict state. Continue? [Y/N]:y
Restoring from multi-active conflict state, please wait...
15
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