Dell SmartFabric OS10 User Guide Release 10.5.3

Example - SyncE QL-enabled mode with ESMC and SSM

SyncE is configured in the QL-enabled mode and ESMC is enabled on Switch A and Switch B. In this example, Switch A is synchronized to the best input clock source, SRC2 because it has higher QL. This QL value is transmitted from Ethernet interface 1/1/3 to Switch B, which also gets synchronized to the trail of clock source, SRC2.

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 1/1/1
   SwitchA(conf-if-eth1/1/1)# sync-e enable
   SwitchA(conf-if-eth1/1/1)# exit
   SwitchA(config)# interface ethernet 1/1/2
   SwitchA(conf-if-eth1/1/2)# sync-e enable
   SwitchA(conf-if-eth1/1/2)# exit
   SwitchA(config)# interface ethernet 1/1/3
   SwitchA(conf-if-eth1/1/3)# sync-e enable

5. Enable the ESMC mode on the interfaces that are connected to the clock sources and interfaces transmitting ESMC to the neighboring SyncE nodes.

   SwitchA(config)# interface ethernet 1/1/1
   SwitchA(conf-if-eth1/1/1)# sync-e esmc rx-tx
   SwitchA(conf-if-eth1/1/1)# exit
   SwitchA(config)# interface ethernet 1/1/2
   SwitchA(conf-if-eth1/1/2)# sync-e esmc rx-only
   SwitchA(conf-if-eth1/1/2)# exit
   SwitchA(config)# interface ethernet 1/1/3
   SwitchA(conf-if-eth1/1/3)# sync-e esmc tx-only

6. Verify the SyncE configuration.

   SwitchA# show sync-e
   QL Mode                           : QL-Enabled
   Lock Status                       : Locked
   Selected QL for Tx                : QL-PRC
   Selection Process State           : State 1A(QL-enabled and no active switch request)
   Primary Reference Interface       : Ethernet 1/1/2
   Secondary Reference Interface     : Ethernet 1/1/1
   Selected Reference Clock Identity : 01:02:03:ff:fe:04:05:06
   Local Clock Identity              : 11:11:11:ff:fe:11:11:01
   SSM Network Option                : Option 1
   Hold-off Time                     : 300 ms
   Wait-To-Restore Time              : 300 secs
   SyncE Interfaces
   -------------------------------------------------------------------
   Interface    Priority   QL         Signal  State       Status
                                      State
   -------------------------------------------------------------------
   Ethl/1/1     128        QL-SSU-A   Up      Available   Secondary
   Ethl/1/2     128        QL-PRC     Up      Available   Primary
   Ethl/1/3     128        QL-DNU     Up      Available   -
   -------------------------------------------------------------------

Switch B configuration

1. Enable SyncE on the switch.

   SwitchB: configure terminal
   SwitchB(config)# sync-e enable

2. Set the SyncE mode to QL-enabled.

   SwitchB(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.

   SwitchB(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.

   SwitchB(config)# interface ethernet 1/1/1
   SwitchB(conf-if-eth1/1/1)# sync-e enable

5. Enable the ESMC mode on the interfaces that are connected to the clock sources and interfaces transmitting ESMC to the neighboring SyncE nodes.

   SwitchB(config)# interface ethernet 1/1/1
   SwitchB(conf-if-eth1/1/1)# sync-e esmc rx-tx

6. Verify the SyncE configuration.

   SwitchB# show sync-e
   QL Mode                           : QL-Enabled
   Lock Status                       : Locked
   Selected QL for Tx                : QL-PRC
   Selection Process State           : State 1A(QL-enabled and no active switch request)
   Primary Reference Interface       : Ethernet 1/1/1
   Secondary Reference Interface     : -
   Selected Reference Clock Identity : 11:11:11:ff:fe:11:11:01
   Local Clock Identity              : 22:22:22:ff:fe:22:22:01
   SSM Network Option                : Option 1
   Hold-off Time                     : 300 no
   Wait-To-Restore Time              : 300 secs
   SyncE Interfaces
   -----------------------------------------------------------------
   Interface   Priority   QL        Signal   State      Status        
                                    State                                               
   -----------------------------------------------------------------
   Ethl/1/1    128        QL-PRC    Up       Available  Primary
   -----------------------------------------------------------------