Alcatel-Lucent 7210 SAS M Configuration Manual page 356

PTP Commands
Syntax [no] shutdown
Context configure>system>ptp>peer
This command disables or enables a specific PTP peer. Shutting down a peer sends cancel unicast
negotiation messages on any established unicast sessions. When shutdown, all received packets from
the peer are ignored.
If the clock-type is ordinary slave or boundary, and PTP is no shutdown, the last enabled peer cannot
be shutdown. This prevents the user from having PTP enabled without any peer configured &
enabled
Default no shutdown
Page 356
Guide
7210 SAS M, T, X, R6 Basic System Configuration