ntpdate: no server suitable for synchronization found

[root@myHost default]# ntpdate -d pool.ntp.org
15 Apr 11:21:18 ntpdate[6331]: ntpdate [email protected] Thu Feb 24 20:39:57 EST 2011 (1)
Looking for host pool.ntp.org and service ntp
host found : magma.woody.ch
transmit(157.161.57.1)
transmit(157.161.57.1)
t    ransmit(157.161.57.1)
transmit(157.161.57.1)
transmit(157.161.57.1)
157.161.57.1: Server dropped: no data
server 157.161.57.1, port 123
stratum 0, precision 0, leap 00, trust 000
refid [157.161.57.1], delay 0.00000, dispersion 64.00000
transmitted 4, in filter 4
reference time:    00000000.00000000  Thu, Feb  7 2036  6:28:16.000
originate timestamp: 00000000.00000000  Thu, Feb  7 2036  6:28:16.000
transmit timestamp:  d152a8b1.9ca2ec28  Fri, Apr 15 2011 11:21:21.611
filter delay:  0.00000  0.00000  0.00000  0.00000
         0.00000  0.00000  0.00000  0.00000
filter offset: 0.000000 0.000000 0.000000 0.000000
         0.000000 0.000000 0.000000 0.000000
delay 0.00000, dispersion 64.00000
offset 0.000000

15 Apr 11:21:22 ntpdate[6331]: no server suitable for synchronization found

can someone please help me to understand what above means?

The only server ntpdate found for update had a problem returning the date for your server. That can be some things:

• If it was only this time, on this server, it could be a temporary issue and you should try again (since you are using pool.ntp.org and that points to various different servers);
• If it happens with all the ntp servers you try, you can be behind a firewall that blocks ntp traffic or
• You can have a bug or a config issue.