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 TS3
om: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Scott Mace
Sent: Sunday, October 05, 2008 11:33 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] GPS, NTP, and Cisco routers...
This runs on the aux port, and the sup720 doesn't have an aux port...
The Oscillator on a 25xx is a Saronix 3.864Mhz oscillator chip. Also see this
This is from one of Cisco's configuration guides - my documentation
unfortunately was covered by a Cisco NDA I am looking for a public
document which describes serial interrupt handling.But when you
think about it
This runs on the aux port, and the sup720 doesn't have an aux port...
There are always obscure features that slip into the production releases
that aren't tested and they just forget to exclude them during builds.
TAC will probably have no clue about this...
You could try the cisco-nsp mailling lis
Actually you might get pretty good results if you have a 6509 as any
activity on the serial port triggers a CPU interrupt which is why on a
overloaded 6509 the first thing to try is "no logging console" to get
the cpu down from 100% - usually in the context of DDoS and the
control plane is slammed
It looks like the feature set varies significantly with the router
model, and by IOS feature set. The router I have here is an eBay
special, an old 2514. It's probably 10 years old, though I think
Cisco continued to make them until about 2003. It's only configured
with 8mb flash, so it
Looks like Trimble and Cisco got together on a PPS implementation for
the 7200, starting with 12.0T trainwreck:
http://www.cisco.com/en/US/docs/ios/12_1t/12_1t1/feature/guide/dtrimble.html
Since I don't have any 7200s any longer (thank goodness), I checked
and it seems that the 6500s support this
What do you need to know about NTP on IOS? - I've been working with
Cisco gear longer than I care to admit and have a bunch of CC*
certifications but that's not relevant here
Generally IOS devices actually speak SNTP - Not sure whether they can
use an external reference clock I don't think so BUT
On Fri, Oct 03, 2008 at 06:46:17PM -0400, [EMAIL PROTECTED] wrote:
> From: Robert Vassar <[EMAIL PROTECTED]>
> Subject: [time-nuts] GPS, NTP, and Cisco routers...
>
> I've been fiddling around with an old Cisco router here at the house
> to brush up. We have an IPv6
I've been fiddling around with an old Cisco router here at the house
to brush up. We have an IPv6 project going at work, and our WAN
provider provides no native transit, so I'm looking at doing some
tunneling. Anyhow... I discovered IOS 12.1 and above have native NTP
capability. I don
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