Basic System Configuration Guide System Management
Edition: 01 3HE 11010 AAAC TQZZA 247
6.4.6.8 PTP Boundary Clock for Time of Day/Phase Recovery
The following equipment supports PTP boundary clock capability for time of day/
phase recovery:
• all fixed platforms listed in Table 25
• all cards listed in Table 26
The 7705 SAR-8 can support up to six boundary clocks and the 7705 SAR-18 can
support up to eight boundary clocks. The fixed platforms can each support one
boundary clock. PTP boundary clocks that recover time of day/phase from a grand
master clock or another boundary clock can be used as a reference for the router
system time clock, providing high-accuracy OAM timestamping and measurements
for the following equipment:
• 7705 SAR-8
• 7705 SAR-18
• 7705 SAR-A
• 7705 SAR-Ax
• 7705 SAR-H
• 7705 SAR-Hc
• 7705 SAR-M
• 7705 SAR-W
• 7705 SAR-Wx
• 7705 SAR-X
Each PTP boundary clock for time of day/phase is configured for a specific slot where
the adapter card or port will perform the boundary clock function. On fixed platforms,
with the exception of the 7705 SAR-X, this slot is always 1/1. On the 7705 SAR-X,
this slot is always either 1/2 or 1/3. Each boundary clock is also associated with a
loopback or system address for the router.
6.4.6.9 PTP End-to-End Transparent Clock for Time of Day/Phase
Recovery
PTP end-to-end transparent clock for time of day/phase recovery is supported on the
following:
• the fixed platforms listed in Table 25
• 2-port 10GigE (Ethernet) module
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