Huawei AR530 Series Configuration Manual page 103

Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Device Management
[RouterD] interface gigabitethernet 1/0/0
[RouterD-GigabitEthernet1/0/0] ntp-service broadcast-client
[RouterD-GigabitEthernet1/0/0] quit
After the configuration is complete, RouterD synchronizes its clock to that of RouterC. For
details about the configuration of RouterF, which is similar to that of RouterC, see the
corresponding configuration file.
Step 4 Configure the NTP broadcast client RouterA on a network segment different from that of the
server.
# Enable NTP authentication.
[RouterA] ntp-service authentication enable
[RouterA] ntp-service authentication-keyid 16 authentication-mode hmac-sha256
Hello
[RouterA] ntp-service reliable authentication-keyid 16
# Configure RouterA as the NTP broadcast client that listens to the NTP broadcast packets from
interface GE1/0/0.
[RouterA] interface gigabitethernet 1/0/0
[RouterA-GigabitEthernet1/0/0] ntp-service broadcast-client
[RouterA-GigabitEthernet1/0/0] quit
Step 5 Verify the configuration.
After the preceding configuration is complete, RouterD can synchronize its clock to that of
RouterC, but RouterA cannot synchronize its clock to that of RouterC.
This is because RouterA is on a network segment different from that of RouterC, but RouterD
is on a network segment the same as that of RouterC.
# Check the NTP status of RouterD, and you can find that the clock status is "synchronized",
indicating that the synchronization is complete. The stratum of the clock is 4, which is one
stratum lower than that of the clock of RouterC.
[RouterD] display ntp-service status
clock status: synchronized
clock stratum: 4
reference clock ID: 10.3.1.31
nominal frequency: 60.0002 Hz
actual frequency: 60.0002 Hz
clock precision: 2^18
clock offset: 0.0000 ms
root delay: 0.00 ms
root dispersion: 0.42 ms
peer dispersion: 0.00 ms
reference time: 12:17:21.773 UTC Mar 7 2012(C7B7F851.C5EAF25B)
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Configuration Files
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Issue 01 (2014-11-30)
Configuration file of RouterA
#
sysname RouterA
#
interface GigabitEthernet1/0/0
undo portswitch
ip address 10.1.1.11 255.255.255.0
ntp-service broadcast-client
#
ntp-service authentication enable
ntp-service authentication-keyid 16 authentication-mode hmac-sha256 cipher %@%
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4 NTP Configuration
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