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Dell SmartFabric OS10 User Guide Release 10.5.3

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Example - PTP and SyncE enabled on same Ethernet ports

In this example, SyncE and PTP are enabled on Switch A and Switch B. PTP boundary clock is enabled on the switches. On Switch A, Ethernet interface 1/1/1 is a PTP-enabled port that is connected to the clock source, SRC-2 (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 ports, 1/1/1, 1/1/2, and 1/1/3.

Switch A gets synchronized to the best available input clock source, SRC-2, 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 (SRC-2) 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 1/1/1
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 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. Configure PTP boundary clock on the switch. 
    SwitchA(config)# ptp clock boundary hybrid profile system-default
SwitchA(config)# interface ethernet 1/1/1
SwitchA(conf-if-eth1/1/1)# ptp enable 
SwitchA(conf-if-eth1/1/1)# ptp transport layer2
SwitchA(conf-if-eth1/1/1)# ptp role slave
SwitchA(conf-if-eth1/1/2)# exit
SwitchA(config)# interface ethernet 1/1/2
SwitchA(conf-if-eth1/1/2)# ptp enable 
SwitchA(conf-if-eth1/1/2)# ptp transport layer2
SwitchA(conf-if-eth1/1/2)# ptp role slave
  7. 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     : -
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   -
  8. View the PTP information. 
    switchA# show ptp
PTP Clock                     : Boundary (Hybrid)
Clock Identity                : 11:11:11:ff:ff:11:11:01
Grandmaster Clock Identity    : 00:11:00:ff:fe:00:00:01
Clock Mode                    : One-step
Clock Quality
   Class                      : 248
   Accuracy                   : <=25s
   Offset Log Scaled Variance : 0
Domain                        : 0
Priorityl                     : 128
Priority2                     : 128
Profile                       : System-default
Steps Removed                 : 1
Mean Path Delay(ns)           : 110
Offset From Master(ns)        : -7
Number of Ports               : 2
-------------------------------------------------------
Interface     State        Port Identity
-------------------------------------------------------
Ethl/1/1      Slave        20:04:0f:ff:ff:0d:5b:56:2
Ethl/1/3      Master       20:04:0f:ff:ff:0d:5b:56:1
-------------------------------------------------------
Number of slave ports  :1 
Number of master ports :1
  9. Verify the PTP state and lock status. 
    switchA# show ptp servo
Servo State : Locked
Lock Status : Phase-locked

Switch B configuration

  1. Enable SyncE on the switch. 
    SwitchB: configure terminal
SwitchB(config)# sync-e enable
  2. Enable SyncE mode of QL operation. 
    SwitchB(config)# sync-e mode ql-enabled
  3. Configure the SSM network option ( default is option-1 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-eth1/1/2)# sync-e enable
  5. Enable 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-only
  6. Configure PTP boundary clock on the switch. 
    SwitchB(config)# ptp clock boundary hybrid profile system-default
SwitchB(config)# interface ethernet 1/1/1
SwitchB(conf-if-eth1/1/1)# ptp enable 
SwitchB(conf-if-eth1/1/1)# ptp transport layer2
SwitchB(conf-if-eth1/1/1)# ptp role slave
  7. View the SyncE information. 
    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 ms
Wait-To-Restore Time              : 300 secs
SyncE Interfaces
----------------------------------------------------------------
Interface    Priority  QL      Signal    State      Status
                               State
----------------------------------------------------------------
Ethl/1/1     128       QL-PRC  Up        Available  Primary
----------------------------------------------------------------
  8. View the PTP information. 
    switchB# show ptp
PTP Clock                     : Boundary (Hybrid)
Clock Identity                : 22:22:22:ff:ff:22:22:01
Grandmaster Clock Identity    : 00:11:00:ff:fe:00:00:01
Clock Mode                    : One-step
Clock Quality
   Class                      : 248
   Accuracy                   : <=25ns 
   Offset Log Scaled Variance : 0
Domain                        : 0
Priorityl                     : 128
Priority2                     : 128
Profile                       : System-default
Steps Removed                 : 1
Mean Path Delay(ns)           : 176
Offset From Master(ns)        : -8
Number of Ports               : 1
------------------------------------------------------
Interface     State        Port Identity
------------------------------------------------------
Ethl/1/1      Slave        20:04:0f:ff:ff:0d:5b:56:2
------------------------------------------------------
Number of slave ports  :1 
Number of master ports :0
  9. Verify the PTP state and lock status. 
    switchA# show ptp servo
Servo State : Locked
Lock Status : Phase-locked

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