XGS-5240-Series User Manual

Configuration Guide of XGS-5240-Series
63-6
Fig 4-3 ULPP typical example1
The above topology is the typical application environment of ULPP protocol.
SwitchA has two uplinks, they are SwitchB and SwitchC. When any protocols are n
ot enabled, this topology forms a ring. For avoiding the loopback, SwitchA can configur
e ULPP protocol, the master port and the slave port of ULPP group. When both maste
r port and slave port are up, the slave port will be set as standby state and will not fo
rward the data packets. When the master port is down, the slave port will be set as fo
rwarding state and switch to the uplink. SwitchB and SwitchC can enable the command
that receives the flush packets, it is used to associate with ULPP protocol running of
SwitchA to switch the uplink immediately and reduce the switch delay.
When configuring ULPP protocol of SwitchA, first, create a ULPP group and config
ure the protection VLAN of this group as vlan10, then configure interface Ethernet 1/0/1
as the master port, interface Ethernet 1/0/2 as the slave port, the control VLAN as 10.
SwitchB and SwitchC configure the flush packets that receive ULPP.
SwitchA configuration task list:
Switch(Config)#vlan 10
Switch(Config-vlan10)#switchport interface ethernet 1/0/1; 1/0/2
Switch(Config-vlan10)#exit
Switch(Config)#spanning-tree mst configuration
Switch(Config-Mstp-Region)#instance 1 vlan 10
Switch(Config-Mstp-Region)#exit
Switch(Config)#ulpp group 1
Switch(ulpp-group-1)#protect vlan-reference-instance 1
Switch(ulpp-group-1)#control vlan 10
SwitchB E1/0/1
SwitchD
SwitchA
E1/0/2 SwitchC
E1/0/2 E1/0/1