Installation and User Manual
EtherHaul
1200™
Page 116
EH-INST-02, Issue 4.0
7.5.3
ERP Administrative Commands
The EtherHaul 1200 provides two commands for blocking a particular ring port:
Forced Switch (FS)
– Can be used even if there is an existing condition.
Multiple FS commands are supported per ring. FS commands can be used to
enable immediate maintenance operations.
Manual Switch (MS)
– Not effective if there is an existing FS or SF condition.
Also, MS commands are overridden by new FS and SF conditions. New MS
commands are ignored.
Additionally, a Clear command can be used to cancel an existing FS or MS command on
the ring port. The Clear command can also be used at an RPL owner node to trigger
reversion.
The following examples illustrate how to use the administrative commands to control
manual switching to the backup and block a particular ring port.
Left_Slave> set ring 3 action
cw-ms | acw-ms | cw-fs | acw-fs | clear
Left_Slave> set ring 3 action
Right_Master>set ring 3 action acw-fs
Set done: ring 3
Right_Master>show log
Aug 4 21:09:39 sw cad: local Forced switch at 200 CW unblocked
ACW blocked
Right_Master>show ring all state
ring 3 state : fs
Right_Master>
Right_Master>set ring 3 action clear
Set done: ring 3
Right_Master>show log
Aug 4 21:09:39 sw cad: local Forced switch at 200 CW unblocked
ACW blocked
Aug 4 21:10:46 sw cad: ERP 200is ready Role acw-rpl
Right_Master>
Right_Master>set ring 3 action acw-ms
Set done: ring 3
Right_Master>show log
Aug 4 21:43:18 sw cad: local Manual switch at 200 CW unblocked
ACW blocked
