Configuration Example For Mpls Vpn Time Synchronization In Symmetric Peers Mode - HP MSR Series Configuration Manual

Configuration procedure
Before you perform the following configuration, be sure you have completed MPLS VPN-related
configurations and make sure of the reachability between CE 1 and PE 1, between PE 1 and PE 2, and
between PE 2 and CE 3. For information about configuring MPLS VPN, see MPLS Configuration Guide.
1. Set the IP address for each interface as shown in
2. Configure CE 1:
# Specify the local clock as the reference source, with the stratum level 1.
<CE1> system-view
[CE1] ntp-service refclock-master 1
3. Configure PE 2:
# Specify CE 1 as the NTP server for VPN 1.
<PE2> system-view
[PE2] ntp-service unicast-server 10.1.1.1
# Display the NTP session information and status information on PE 2 a certain period of time later.
The information should show that PE 2 has been synchronized to CE 1, with the stratum level 2.
[PE2] display ntp-service status
Clock status: synchronized
Clock stratum: 2
Reference clock ID: 10.1.1.1
Nominal frequency: 63.9100 Hz
Actual frequency: 63.9100 Hz
Clock precision: 2^7
Clock offset: 0.0000 ms
Root delay: 47.00 ms
Root dispersion: 0.18 ms
Peer dispersion: 34.29 ms
Reference time: 02:36:23.119 UTC Jan 1 2001(BDFA6BA7.1E76C8B4)
[PE2] display ntp-service sessions
source
**************************************************************************
[12345]10.1.1.1
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
Total associations :
[PE2]
server 127.0.0.1,stratum 2, offset -0.013500, synch distance 0.03154
server 10.1.1.1,stratum 1, offset -0.506500, synch distance 0.03429
refid 127.127.1.0
Configuration example for MPLS VPN time synchronization in
symmetric peers mode
Network requirements
As shown in
belong to VPN 1. To synchronize the time between PE 1 and CE 1 in VPN 1, configure CE 1's local clock
as a reference source, with the stratum level 1, configure CE 1 to operate in symmetric peers mode, and
specify VPN 1 as the target VPN.
reference
LOCL
1
display ntp-service trace
Figure 23, two VPNs are present on PE 1 and PE 2: VPN 1 and VPN 2. CE 1 and CE 3
Figure 23. (Details not shown.)
stra reach poll now offset
1 7 64 15
52
delay disper
0.0 47.0 7.8