How to confirm NTP server is working on GSS

gaojianwen · ‎11-10-2006

Hi all,

I couldn't find any command to check the GSS is making use of NTP to get the correct time from NTP server. Can anyone please advise how i can check.

Thanks.

Jianwen

skumar1969 · ‎11-12-2006

There are 2 ways to confirm this working. I hope you would have tried the first option. Second option would help more precise.

1/ To view if NTP is enabled for the GSS device, enter:

localhost.localdomain# show ntp

Ntp is enabled

ntp-server 172.16.1.2

ntp-server 172.16.1.3

2/ Use the "tcpdump interface" command to display a record at the CLI of all TCP traffic transmitted from and received by an Ethernet interface. GSS traffic information continuously displays on screen until you press Ctrl-C to cancel the operation.

thanks

gaojianwen · ‎11-22-2006

Hi,

Does the following messages show that it's working? Thanks.

#tcpdump interface any protocol any host

tcpdump: WARNING: Promiscuous mode not supported on the "any" device

tcpdump: listening on any

17:41:46.160704 x.x.x.x.ntp > y.y.y.y.ntp: v4 client strat 0 poll 6 prec -17 (DF) [tos 0x10]

17:41:46.435812 y.y.y.y.ntp > x.x.x.x.ntp: v4 server strat 5 poll 6 prec -17 (DF)

2 packets received by filter

0 packets dropped by kernel