6-11
Cisco ME 3800X and 3600X Switch Software Configuration Guide
OL-23400-01
Chapter 6 Configuring Synchronous Ethernet
Monitoring SyncE
Use the no versions of the commands to disable the REP workaround segment selection or return to the
default settings.
This example configures the REP workaround and sets the clock input ports:
Switch (config)#
rep administrative vlan 2
Switch (config)#
network-clock-select output 2 SYNCE 0
Switch (config)#
interface tengigabitethernet 0/1
Switch (config-if)#
switchport mode trunk
Switch (config-if)#
rep segment 2
Switch (config-if)#
exit
Switch (config)#
ql-enabled rep-segment 3
Switch (config)#
network-clock-select 1 SYNCE 0
Switch (config)#
network-clock-select 2 SYNCE 1
Switch (config)#
interface tengigabitethernet 0/2
Switch (config-if)#
switchport mode trunk
Switch (config-if)#
rep segment 2
Switch (config-if)#
exit
Switch (config)#
network-clock-select mode revert
Switch (config)#
network-clock-select wait-to-restore-timeout 300
Switch (config)#
network-clock-select hold-off-timeout 300
Switch (config)#
end
Monitoring SyncE
Use these privileged EXEC commands to view SyncE configuration on a switch:
•
show controller BITS
Switch#
show controller BITS
Applique type is T1
Line Coding is B8ZS(Rx), B8ZS(Tx)
Framing is ESF(Rx), ESF(Tx)
Line Build Out is 0-133ft
No alarms detected.
•
show network-clocks
Switch#
show network-clocks
Network Clock Configuration
Input Clock BITS: valid
Input Clock SYNCE Te0/1: valid
Input Clock SYNCE Te0/2 : valid
System Clock Lock Status (T0DPLL) : Locked
Output Clock Generated from T4 DPLL
T4 DPLL Lock Status : Locked
System Clock Selected Ref: Te0/2
T4 DPLL Selected Ref: Te0/1
System Clock (T0 DPLL) Info:
Priority Source Type
---------------------------------------------------------------
01 Te0/2 SYNCE
Step 9
show network-clocks
Verify the configuration.
Step 10
copy running-config startup config
(Optional) Save your entries in the switch startup
configuration file.
Command
Purpose
