Rockwell Automation Publication 1783-UM007G-EN-P - February 2017 201
Configure Switch Features Chapter 7
Figure 5 - Forward Mode
Sync Interval
(Not available on
Stratix 8000/8300 switches)
Type the time interval, specified as the logarithmic mean in seconds, for sending synchronization messages.
Valid values:
• -1—half second
• 0—1 second
• 1— 2 seconds
Default: 0 (1 second)
Sync Fault Limit
(Not available on
Stratix 8000/8300 switches)
Type the maximum clock offset before PTP attempts to reacquire synchronization.
Valid values: 50…500000000 nanoseconds
Default: 50000 nanoseconds
IMPORTANT: We recommend against setting the sync limit below the default (50000 nanoseconds). Use values below 50000 nanoseconds only in
networks with a very high-precision grandmaster clock. These networks have a critical need to keep very sensitive devices synchronized.
Vlan Id
(Not available on
Stratix 8000/8300 switches)
Stratix To configure PTP on a VLAN of a trunk port, type the VLAN ID. Only PTP packets in the VLAN you specify are processed. PTP packets from
other VLANs are dropped. You can only enable PTP on one VLAN on a trunk port.
Valid values: 1…4094
The default is the native VLAN of the trunk port.
Table 34 - End to End Transparent Mode Fields (continued)
Field Description
Table 35 - Forward Mode Fields
Field Description
Device Time Source Displays the time source used by the switch.
Device Clock Time Displays the time on the switch, obtained from the time source.
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