R3166-R3206-HP High-End Firewalls System Management and Maintenance Configuration Guide-6PW101

As shown above, Firewall B has been synchronized to Firewall C, and the clock stratum level of Firewall

B is 2, while that of Firewall C is 1.

# View the NTP session information of Firewall B, which shows that an association has been set up

between Firewall B and Firewall C.

[FirewallB] display ntp-service sessions

source reference stra reach poll now offset delay disper

**************************************************************************

[245] 3.0.1.31 127.127.1.0 2 15 64 24 10535.0 19.6 14.5

[1234] 3.0.1.33 LOCL 1 14 64 27 -77.0 16.0 14.8

note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured

Total associations : 2

Configuring NTP broadcast mode

Network requirements

• Firewall C’s local clock is to be used as a reference source, with the stratum level of 2.

• Firewall C works in the broadcast server mode and sends out broadcast messages from GE 0/1.

• Firewall D and Firewall A work in the broadcast client mode and receive broadcast messages

through their respective GE 0/1.

Figure 44 Network diagram for NTP broadcast mode configuration

Configuration procedure

1. Configuration on Firewall C.

# Specify the local clock as the reference source, with the stratum level of 2.

<FirewallC> system-view

[FirewallC] ntp-service refclock-master 2

# Configure Firewall C to work in the broadcast server mode and send broadcast messages through GE

0/1.

[FirewallC] interface gigabitethernet 0/1

[FirewallC-GigabitEthernet0/1] ntp-service broadcast-server

2. Configuration on Firewall D.