System Management
254
Basic System Configuration Guide
3HE 11010 AAAC TQZZA Edition: 01
Because the synchronizationUncertain flag is newly agreed upon in standards, most
base station slave clocks do not look at this bit. Therefore, in order to ensure that the
downstream clocks are aware of the state of the network, the PTP clock (grand
master, boundary, slave) may optionally be configured to transmit Announce and
Sync messages only if the clock is in a “synchronization certain” state. This is done
using the no tx-while-sync-uncertain command.
6.4.6.14 PTP Statistics
The 7705 SAR provides the capability to collect statistics, state, and events data for
the PTP slave clock’s interaction with PTP peer clock 1 and PTP peer clock 2. This
data is collected separately for each peer clock and can be displayed using the show
system ptp clock ptp-port command. This data can be used to monitor the PTP
slave clock performance in relation to the peer clocks and to diagnose a problem or
analyze the performance of a packet switched network for the transport of
synchronization messages. The following data is collected:
PTP peer-1/PTP peer-2 statistics:
• number of signaling packets
• number of unicast request announce packets
• number of unicast request announce timeouts
• number of unicast request announce packets rejected
• number of unicast request synchronization packets
• number of unicast request synchronization timeouts
• number of unicast request synchronization packets rejected
• number of unicast request delay response packets
• number of unicast request delay response packets timeouts
• number of unicast request delay response packets rejected
• number of unicast grant announce packets
• number of unicast grant announce packets rejected
• number of unicast grant synchronization packets
• number of unicast grant synchronization packets rejected
• number of unicast grant delay response packets
• number of unicast grant delay response packets rejected
• number of unicast cancel announce packets
• number of unicast cancel synchronization packets
• number of unicast cancel delay response packets
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