Installation and User Manual
EtherHaul
1200™
Page 112
EH-INST-02, Issue 4.0
DNU (Do Not use, ql 15) is returned to the source in order to prevent timing
loops.
Figure
7-19 Typical SyncE Scenario
– Holdover Due to Line Failure
The configuration for this scenario is:
Local EtherHaul 1200
Default>show ref-clock
ref-clock host prio : 255
ref-clock host status : active
ref-clock host ql-actual : 11
ref-clock host ql-config : 11
ref-clock host ql-mode : disable
ref-clock host ssm-cvid : none
ref-clock eth2 prio : 200
ref-clock eth2 status : down
ref-clock eth2 ql-actual : 15
ref-clock eth2 ql-config : 2
ref-clock eth2 ql-mode : disable
ref-clock eth2 ssm-cvid : none
Remote EtherHaul 1200
Default>show ref-clock
ref-clock host prio : 255
ref-clock host status : backup-1
ref-clock host ql-actual : 11
ref-clock host ql-config : 11
ref-clock host ql-mode : disable
ref-clock host ssm-cvid : none
ref-clock eth0 prio : 100
ref-clock eth0 status : active
