Users Guide

1. Enable SyncE on the switch.
SwitchB: configure terminal
SwitchB(config)# sync-e enable
2. Set the SyncE mode to QL-disabled.
SwitchB(config)# sync-e mode ql-disabled
3. Enable SyncE on the interfaces that are connected to the clock sources and interfaces transmitting to the neighboring
SyncE node.
SwitchB(config)# interface ethernet 1/1/1
SwitchB(conf-if-eth1/1/1)# sync-e enable
4. Verify the SyncE configuration.
SwitchB# show sync-e
QL Mode : QL-Disabled
Lock Status : Locked
Selected QL for Tx : -
Selection Process State : State 2A(QL-disabled and no active switch request)
Primary Reference Interface : Ethernet 1/1/1
Secondary Reference Interface : -
Selected Reference Clock Identity : -
Local Clock Identity : 8c:04:ba:ff:fe:b0:a5:40
SSM Network Option : Option 1
Hold-off Time : 300 ms
Wait-To-Restore Time : 300 s
SyncE Interfaces
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Interface Priority QL Signal State Status
State
------------------------------------------------------------
Ethl/1/1 128 - Up Available Primary
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Example - PTP and SyncE enabled on different Ethernet ports
In this example, SyncE and PTP are enabled on Switch A and Switch B. These switches are connected to input clock sources,
SRC1 (QL=SSU-A) and SRC2 (QL=PRC). On Switch A, Ethernet interface 1/1/1 is a PTP-enabled port that is connected to
the clock source, SRC 1 (PTP grandmaster). Ethernet interface 1/1/3 is a PTP master port to the neighboring boundary clock,
Switch B . SyncE and ESMC are enabled on Ethernet interfaces 1/1/2 and 1/1/3.
As ESMC is enabled, Switch A gets frequency-synchronized to the input clock source, SRC2, and this QL value is transmitted
from the Ethernet interface 1/1/3 to Switch B. Switch B also gets synchronized to the trail of clock source SRC2. The PTP
boundary clock is phase-locked with its grandmaster clock (SRC1) and gets the Time of the Day (ToD).
Switch A configuration
1. Enable SyncE on the switch.
SwitchA: configure terminal
SwitchA(config)# sync-e enable
2. Set the SyncE mode to QL-enabled.
SwitchA(config)# sync-e mode ql-enabled
3. Configure the synchronization network. The default value is 1, and it is a synchronization network that is designed for
Europe.
SwitchA(config)# sync-e ssm-network-option 1
4. Enable SyncE on the interfaces that are connected to the clock sources and interfaces transmitting to the neighboring
SyncE node.
SwitchA(config)# interface ethernet 1/1/2
SwitchA(conf-if-eth1/1/2)# sync-e enable
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System management