Re: [c-nsp] NTP Config

2007-07-12 Thread Hitesh Vinzoda
hey Guyz, Thanks for your suggestions... but we are going pretty deep inside. i dont want to sync my 6509 to sync with any public time sources. i want 1 out of 4 6509 to act as NTP master and want redundancy in the core for NTP and want my 350 LAN devices to be able to update the time from NTP

Re: [c-nsp] NTP Config

2007-07-12 Thread Stephen Wilcox
Hi Hitesh On Thu, Jul 12, 2007 at 09:25:07PM +0530, Hitesh Vinzoda wrote: hey Guyz, Thanks for your suggestions... but we are going pretty deep inside. i dont want to sync my 6509 to sync with any public time sources. I think the point was that unless you setup proper external syncing your

Re: [c-nsp] NTP Config

2007-07-12 Thread Tony Li
On Jul 12, 2007, at 9:18 AM, Stephen Wilcox wrote: You can do this with the configs suggested - if you sync to an external time source your clocks will be accurate and if you dont they will be wrong. Agreed. The time resulting from such a configuration is generally less accurate than

[c-nsp] NTP Config

2007-07-11 Thread Hitesh Vinzoda
I have got 4 6509 cisco in mesh for the core and i want to enable NTP on those to act as a master. i went thru the config, the only option there is configntp master stratum 8 ( 8 is the default value ) does only this command will enable the device to act as a NTP server and suggestions are

Re: [c-nsp] NTP Config

2007-07-11 Thread Sridhar Ayengar
Justin Shore wrote: 1) Always use authentication between your local peers. Ideally you would also take advantage of NIST's offer of authenticated NTP (or make arrangements with another provider with whom you peer). This isn't a big deal if all of the devices are behind a firewall. You can

Re: [c-nsp] NTP Config

2007-07-11 Thread Tony Li
I tend to use tick and tock (.usno.navy.mil) for my stratum-2 servers. There are others which allow public access, but why not just go to the horse's mouth? The horse can pretty far away. If you're topologically distant, then access to tick and tock might have substantial amounts of