PLANET XGS3-24040 - Manual (Page 549)

Chapter 61 ULPP Configuration
61-7
Switch(ulpp-group-2)#protect vlan-reference-instance 2
Switch(ulpp-group-2)#exit
Switch(Config)#interface ethernet 1/1
Switch(config-If-Ethernet1/1)#switchport mode trunk
Switch(config-If-Ethernet1/1)#ulpp group 1 master
Switch(config-If-Ethernet1/1)#ulpp group 2 slave
Switch(config-If-Ethernet1/1)#exit
Switch(Config)#interface Ethernet 1/2
Switch(config-If-Ethernet1/2)#switchport mode trunk
Switch(config-If-Ethernet1/2)# ulpp group 1 slave
Switch(config-If-Ethernet1/2)# ulpp group 2 master
Switch(config-If-Ethernet1/2)#exit
SwitchB configuration task list:
Switch(Config)#interface ethernet 1/1
Switch(config-If-Ethernet1/1)#switchport mode trunk
Switch(config-If-Ethernet1/1)# ulpp flush enable mac
Switch(config-If-Ethernet1/1)# ulpp flush enable arp
SwitchC configuration task list:
Switch(Config)#interface ethernet 1/2
Switch(config-If-Ethernet1/2)# switchport mode trunk
Switch(config-If-Ethernet1/2)# ulpp flush enable mac
Switch(config-If-Ethernet1/2)# ulpp flush enable arp
61.4 ULPP Troubleshooting
 At present, configuration of more than 2 multi-uplinks is allowed, but it may cause loopback, so is
not recommended.
 With the normal configuration, if the broadcast storm happen or the communication along the ring is
broken, please enable the debug of ULPP, copy the debug information of 3 minutes and the
configuration information, send them to our technical service center.