Lenovo RackSwitch G8332, Command Reference Manual

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G8332 Command Reference for ENOS 8.4
Precision Time Protocol Configuration
Precision Time Protocol (PTP) allows high accuracy clock synchronization between
a networked master clock and compliant network hosts. The Lenovo RackSwitch
G8332 supports two PTP modes:
 Ordinary slave clock ‐ Synchronizes the Real Time Clock (RTC) with PTP master
clocks detected on the network.
 End ‐ to ‐ End transparent clock ‐ Allows PTP traffic to pass through without
affecting the RTC, while updating the correction fields for event packets.
Table 380.
Precision Time Protocol Configuration Options
Command Syntax and Usage
[no] ptp ordinary enable
Enables or disables PTP ordinary slave clock mode. In this mode, if a PTP
master clock is detected on the network, the RTC is synchronized with it. If no
master clock is detected, the RTC is not affected.
The default setting is
disabled
.
Note: Enabling PTP ordinary slave clock mode disables NTP settings and
system time clock manual settings.
Command mode: Global configuration
[no] ptp transparent enable
Enables or disables PTP End ‐ to ‐ End transparent clock mode. In this mode,
incoming PTP packets are forwarded based on routing rules currently in place
for the PTP domain’s multicast address (within the 224.0.1.129 ‐ 224.0.1.132
range). On egress, PTP packet timestamps are updated based on the time spent
between ingress and egress.
The default setting is
disabled
.
Command mode: Global configuration
ip ptp source ­ interface loopback
<1 ‐ 5>
Loopback interface used as source IP address for delay ‐ request packets sent
during synchronization with the master clock in ordinary slave mode.
By default, the interface with the lowest index from the master clock’s VLAN is
used.
Command mode: Global configuration
no ip ptp source ­ interface loopback
Sets source IP address for delay ‐ request packets sent during synchronization
with the master clock in ordinary slave mode to the interface with the lowest
index from the master clock’s VLAN.
Command mode : Global configuration
no ptp
Disables both PTP ordinary slave clock mode and PTP End ‐ to ‐ End transparent
clock mode.
Command mode: Global configuration