FoxGate S63 series, Руководство по настройке, Страница: 523 / 565

ULSM Configuration
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3. Show and debug the relating information of ULSM
Command Explanation
Admin mode
show ulsm group [group-id]
Show the configuration information of
ULSM group.
debug ulsm event
no debug ulsm event
Show the event information of ULSM, the
no operation disables the shown
information.
63.3
ULSM Typical Example
Fig 63-2 ULSM typical example
The above topology is the typical application environment which is used by ULSM
and ULPP protocol.
ULSM is used to process the port state synchronization, its independent running is
useless, so it usually associates with ULPP protocol to use. In the topology, SwitchA
enables ULPP protocol, it is used to switch the uplink. SwitchB and SwitchC enable ULSM
protocol to monitor whether the uplink is down. If it is down, then ULSM will execute the
down operation for the downlink port to shutdown it, so ULPP protocol of Swtich A
executes the relative operation of the uplink switchover.
SwitchA configuration task list:
Switch(Config)#spanning-tree mst configuration
Switch(Config-Mstp-Region)#instance 1 vlan 1
Switch(Config-Mstp-Region)#exit
SwitchB E1/0/1
SwitchD
SwitchA
E1/0/2 SwitchC
E1/0/2 E1/0/1
E1/0/3 E1/0/4