Technical data

34 FastIron Ethernet Switch Administration Guide

53-1002637-02

Network Time Protocol Version 4 (NTPv4)

NOTE

This command is not effective, if the NTP server is disabled.

Brocade(config)#int m1

Brocade(config-if-mgmt-1)#ip address 10.20.99.173/24

Brocade(config-if-mgmt-1)#ntp

Brocade(config-ntp)#ntp-interface m1

Brocade(config-ntp -mgmt-1)# broadcast destination 10.20.99.0 key 2

Syntax: [no] broadcast destination ip-address [key key-id] [version num]

The ip-address parameter is the IPv4 subnet address of the device to send NTP broadcast

messages to.

The key key-id option defines the authentication key. By default, no authentication key is

configured.

The version num option defines the Network Time Protocol (NTP) version number. If this option is

not specified, then the default value is 4.

Displaying NTP status

Use the show ntp status command to display the NTP status.

Brocade#show ntp status

Clock is synchronized, stratum 4, reference clock is 10.20.99.174

precision is 2**-16

reference time is D281713A.80000000 (03:21:29.3653007907 GMT+00 Thu Dec 01 2011)

clock offset is -2.3307 msec, root delay is 24.6646 msec

root dispersion is 130.3376 msec, peer dispersion is 84.3335 msec

system poll interval is 64, last clock update was 26 sec ago

NTP server mode is enabled, NTP client mode is enabled

NTP master mode is disabled, NTP master stratum is 8

NTP is not in panic mode

Table 6 show ntp status command output descriptions

TABLE 6 NTP status command output descriptions

Field Description

synchronized Indicates the system clock is synchronized to

NTP server or peer.

stratum Indicates the stratum number that this system

is operating. Range 2..15.

reference IPv4 address or first 32 bits of the MD5 hash of

the IPv6 address of the peer to which clock is

synchronized.

precision Precision of the clock of this system in Hz.

reference time Reference time stamp.

clock offset Offset of clock (in milliseconds) to synchro-

nized peer.

root delay Total delay (in milliseconds) along path to root

clock.

root dispersion Dispersion of root path.