Re: [c-nsp] NTP on a 3750 2970

2012-06-13 Thread Joshua Morgan
I stand corrected then. I've only ever tried on a 3750G with IP Base, must have been doing something wrong! Sent from my iPhone On 12/06/2012, at 3:40, Peter Rathlev pe...@rathlev.dk wrote: On Tue, 2012-06-12 at 03:03 +1000, Joshua Morgan wrote: Last time I tried, 3750 does not. I don't

Re: [c-nsp] NTP on a 3750 2970

2012-06-12 Thread Kevin Graham
] On Behalf Of Aled Morris Sent: Monday, June 11, 2012 4:43 PM To: Peter Rathlev Cc: cisco-nsp@puck.nether.net Subject: Re: [c-nsp] NTP on a 3750 2970 On 11 June 2012 18:00, Peter Rathlev pe...@rathlev.dk wrote: You need ntp master command to enable others to sync with this switch

[c-nsp] NTP on a 3750 2970

2012-06-11 Thread Steve Bertrand
Hey all, I'm just wondering if the aforementioned switches will listen for NTP requests by default. We have a rigid Change Management policy, and unfortunately I have no spares for these units. I'm trying to come up with the appropriate config so that these units both sync time off the

Re: [c-nsp] NTP on a 3750 2970

2012-06-11 Thread Peter Rathlev
On Mon, 2012-06-11 at 10:46 -0600, Steve Bertrand wrote: Here's what I'm thinking should do the trick, but it is unclear to me if I need any interface specific or other global config changes to enable client's to sync time with the switches: conf t clock timezone MST -7 clock summer-time

Re: [c-nsp] NTP on a 3750 2970

2012-06-11 Thread Joshua Morgan
Last time I tried, 3750 does not. I don't think any Catalyst can do that. Sent from my iPhone On 12/06/2012, at 2:46, Steve Bertrand steve.bertr...@gmail.com wrote: Hey all, I'm just wondering if the aforementioned switches will listen for NTP requests by default. We have a rigid

Re: [c-nsp] NTP on a 3750 2970

2012-06-11 Thread Peter Rathlev
On Tue, 2012-06-12 at 03:03 +1000, Joshua Morgan wrote: Last time I tried, 3750 does not. I don't think any Catalyst can do that. We have previously used C6k/Sup720 running SFX for this. I just tested a 3560 running 12.2(58)SE1 IP Services and it works fine. I actually just tried a regular IP

Re: [c-nsp] NTP on a 3750 2970

2012-06-11 Thread Aled Morris
On 11 June 2012 18:00, Peter Rathlev pe...@rathlev.dk wrote: You need ntp master command to enable others to sync with this switch. Any IOS device that is in NTP sync will act as an NTP server. You only need to set ntp master if the switch has a free-running clock i.e. not synchronized to an

Re: [c-nsp] NTP on a 3750 2970

2012-06-11 Thread Peter Rathlev
On Mon, 2012-06-11 at 21:43 +0100, Aled Morris wrote: Any IOS device that is in NTP sync will act as an NTP server. Yeah, I discovered that when testing. It confuses me a little though. I don't know exactly how much CPU time serving clients take, but ntp access-group seems like a good idea.

Re: [c-nsp] NTP on a 3750 2970

2012-06-11 Thread Chuck Church
[mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Aled Morris Sent: Monday, June 11, 2012 4:43 PM To: Peter Rathlev Cc: cisco-nsp@puck.nether.net Subject: Re: [c-nsp] NTP on a 3750 2970 On 11 June 2012 18:00, Peter Rathlev pe...@rathlev.dk wrote: You need ntp master command to enable

Re: [c-nsp] NTP on a 3750 2970

2012-06-11 Thread Steve Bertrand
On 11/06/2012 10:46 AM, Steve Bertrand wrote: I'm just wondering if the aforementioned switches will listen for NTP requests by default. Thank you everyone for all of the on and off-list replies. I've got my answer and will be implementing tomorrow morning. This setup is only for one of