Friday, February 8, 2013

back studying, and NTP randomness...

Ok, Ok...

I've been procrastinating.

I am deep into studying for Route again. I have until the middle of next month to retain my CCNA, with the stretch goal of completing the CCNP entirely by June.

So here's the study setup.



even so, It's easy to get distracted...

Playing with NTP on my EIGRP frame relay setup.

If you set an NTP server, here is the output for "Debug NTP packet" when you change the clock to the wrong time on an NTP client.


Router#sh clock
.10:00:35.891 UTC Thu Nov 10 2011
Router#
.Nov 10 10:00:47.475: NTP: xmit packet to 172.16.124.1:
.Nov 10 10:00:47.475:  leap 3, mode 3, version 3, stratum 0, ppoll 64
.Nov 10 10:00:47.479:  rtdel 0D59 (52.139), rtdsp 49D05179 (18896318.253), refid AC107C01 (172.16.124.1)
.Nov 10 10:00:47.479:  ref D2661F3E.E6C4CC9F (10:00:30.901 UTC Thu Nov 10 2011)
.Nov 10 10:00:47.483:  org 00000000.00000000 (00:00:00.000 UTC Mon Jan 1 1900)
.Nov 10 10:00:47.483:  rec 00000000.00000000 (00:00:00.000 UTC Mon Jan 1 1900)
.Nov 10 10:00:47.483:  xmt D2661F4F.79D52E1F (10:00:47.475 UTC Thu Nov 10 2011)
.Nov 10 10:00:47.527: NTP: rcv packet from 172.16.124.1 to 172.16.124.3 on Serial0/0.1:
Router#
.Nov 10 10:00:47.531:  leap 0, mode 4, version 3, stratum 8, ppoll 64
.Nov 10 10:00:47.531:  rtdel 0000 (0.000), rtdsp 0002 (0.031), refid 7F7F0701 (127.127.7.1)
.Nov 10 10:00:47.535:  ref D26CD582.60415C36 (12:11:46.375 UTC Tue Nov 15 2011)
.Nov 10 10:00:47.535:  org D2661F4F.79D52E1F (10:00:47.475 UTC Thu Nov 10 2011)
.Nov 10 10:00:47.539:  rec D26CD5BF.6D9CAF45 (12:12:47.428 UTC Tue Nov 15 2011)
.Nov 10 10:00:47.539:  xmt D26CD5BF.6D9D2EC7 (12:12:47.428 UTC Tue Nov 15 2011)
.Nov 10 10:00:47.543:  inp D2661F4F.8730D15A (10:00:47.528 UTC Thu Nov 10 2011)
.Nov 15 12:12:47.474: NTP: peer stratum change
.Nov 15 12:12:47.474: NTP: clock reset
Router#sh clock
.12:13:10.461 UTC Tue Nov 15 2011

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