Dear Mark,
Thanks for the file. In fact the 7204 IOS was work for 10year+ when it
pair w/ TimesSource3600 PRS. a few month before the TS3600 was dead and I
replace it w/ TS3550.
So I was wondering, is there something difference in TOD between TS3600
TS3550.
Any suggestion?, I already replace 7204 and try a newer ISO (
from c7200-is-mz.122-11.T.bin to c7200-ipbasek9-mz.122-33.SRD8.bin)
Thanks
Bob Chan
On Mon, Dec 8, 2014 at 6:57 AM, Mark Allwright mark.allwri...@shaw.ca
wrote:
-Original Message- From: Mark Allwright
Sent: Sunday, December 07, 2014 3:47 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] GPS, NTP, and Cisco routers...
Hi Bob.
Here is a copy of the application note.
I stopped using Cisco routers as my primary NTP sources some time ago
(years). Did you try some other/older Cisco IOS versions on your 7204?
Regards.
Mark.
--
Mark Allwright, VE6NTP
-Original Message- From: Bob Chan
Sent: Friday, December 05, 2014 5:51 PM
To: time-nuts@febo.com ; mark.allwri...@bell.ca
Subject: [time-nuts] GPS, NTP, and Cisco routers...
Dear all,
Do any one still using Cisco 7200 as NTP master? and get ref clock from
Microsemi GPS TOD via Aux port
I used to have a TimeSource3600 to feed TOD to a Cisco7204VXR, but the
TS3600 was dead, and I TimeSource3550 was installed.
But I found the 7204 cannot get a reliable PPS from the TS3550.
In 7204, I use below command:
line aux 0
ntp refclock telecom-solutions pps cts stratum 0
no exec
transport input all
stopbits 1
line vty 0 4
exec-timeout 20 0
!
ntp access-group query-only 95
ntp access-group peer 96
ntp access-group serve 97
ntp access-group serve-only 98
ntp master
In TS3550, I set the TOD format to Cisco, and a TOD converter was
installed.
The 7204 can sync to GPS after a reboot. but after some time (form min. to
an hour) it will lost sync to GPS and said Bad Time or No PPS signal in
sh ntp asso detail and sh line aux wil indicate alot of noise
overrun
7204
sh ntp ass de
127.127.7.1 configured, our_master, sane, valid, stratum 7
ref ID 127.127.7.1, time D8212701.14C20B50 (12:28:49.081 HKT Thu Nov 27
2014)
our mode active, peer mode passive, our poll intvl 64, peer poll intvl 64
root delay 0.00 msec, root disp 0.00, reach 377, sync dist 0.015
delay 0.00 msec, offset 0. msec, dispersion 0.02
precision 2**18, version 3
org time D8212701.14C20B50 (12:28:49.081 HKT Thu Nov 27 2014)
rcv time D8212701.14C20B50 (12:28:49.081 HKT Thu Nov 27 2014)
xmt time D8212701.14C1C10F (12:28:49.081 HKT Thu Nov 27 2014)
filtdelay = 0.000.000.000.000.000.000.00
0.00
filtoffset =0.000.000.000.000.000.000.00
0.00
filterror = 0.020.991.972.943.924.905.87
6.85
Reference clock status: Running normally
Timecode:
--More-- 127.127.6.1 configured, insane, invalid, unsynced,
stratum 0
ref ID .GPS., time . (08:00:00.000 HKT Mon Jan 1 1900)
our mode active, peer mode unspec, our poll intvl 64, peer poll intvl 64
root delay 0.00 msec, root disp 0.00, reach 0, sync dist 103.516
delay 0.00 msec, offset 0. msec, dispersion 16000.00
precision 2**20, version 3
org time . (08:00:00.000 HKT Mon Jan 1 1900)
rcv time . (08:00:00.000 HKT Mon Jan 1 1900)
xmt time D8212733.14C1CF13 (12:29:39.081 HKT Thu Nov 27 2014)
filtdelay = 0.000.000.000.000.000.000.00
0.00
filtoffset =0.000.000.000.000.000.000.00
0.00
filterror = 16000.0 16000.0 16000.0 16000.0 16000.0 16000.0 16000.0
16000.0
Reference clock status: No PPS signal
Timecode: *,A,56989,14/11/27,04:29:47,+00.0,0,22N22.238,114E07.820,+0095
sh lin aux 0
Tty Typ Tx/RxA Modem Roty AccO AccI Uses Noise Overruns
Int
*1 AUX 9600/9600 -- --- 0 581 1/799854
-
Line 1, Location: , Type:
Length: 24 lines, Width: 80 columns
Baud rate (TX/RX) is 9600/9600, no parity, 1 stopbits, 8 databits
Status: Ready, Active, Modem Signals Polled
Capabilities: EXEC Suppressed, NTP Reference Clock, PPS Reference Clock
Modem state: Ready
Modem hardware state: CTS* noDSR DTR RTS
Special Chars: Escape Hold Stop Start Disconnect Activation
^^xnone - - none
Timeouts: Idle EXECIdle Session Modem Answer Session Dispatch
00:10:00nevernone not set
Idle Session Disconnect Warning
never
Login-sequence User Response
00:00:30
Autoselect Initial Wait
not set
Modem type is unknown.
Session limit is not set.
Time since activation: never
Editing is enabled.
History is enabled, history size is 10.
DNS resolution in show
