You don't need the ntp master or the ntp source commands. Just the two clock commands that you have, the time-zone command under telephony service, and make sure you set the type command under the ephone (eg type 7965). Do a create cnf under telephony service and restart or reset the ephones.
DQ d...@cisco.com<mailto:d...@cisco.com> Sent from my iPhone On Aug 13, 2012, at 6:04 PM, "Ramy Abdelrahim" <ramyoth...@hotmail.com<mailto:ramyoth...@hotmail.com>> wrote: Dear All, Regarding the same subject, I tried to sync a gateway with its internal clock using ntp master only. The clock was synched but not as what's displayed on the IP phones at that site. I realized also that the stratum was higher than 10. My configuration was as follows: clock timezone EST -5 clock summer-time EDT recurring ntp master I don't know if there's a configuration missing here or not. Regard, Ramy > From: michael.se...@compucom.com<mailto:michael.se...@compucom.com> > To: daqui...@cisco.com<mailto:daqui...@cisco.com> > Date: Sun, 5 Aug 2012 13:32:39 -0400 > CC: ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com> > Subject: Re: [OSL | CCIE_Voice] ntp master- is it necessary > > Thanks Dan. I'm not trying to make it work yes it works fine without the > command, but instead I'm trying to replicate what Cisco might be looking for > on the lab. Frankly I don't know what they are looking for in these types of > scenarios but don't want to take the chance of losing points because they > think the command should be there. Just cause it works doesn't mean you will > get the points. > > Michael Sears > > -----Original Message----- > From: Dan Quinlan (daquinla) [mailto:daqui...@cisco.com] > Sent: Sunday, August 05, 2012 11:27 AM > To: Sears, Michael (msears) > Cc: ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com> > Subject: Re: [OSL | CCIE_Voice] ntp master- is it necessary > > Michael, all, > > You do NOT need the NTP master command on a router whenever that router is > synchronizing with an external source, even if other devices are to > synchronize with that router. Michael - in your config, you can remove the > NTP master command and everything will synchronize with the HQ router just > fine. Ntp master should really only be used when there is no external clock. > > DQ > d...@cisco.com<mailto:d...@cisco.com> &! gt; > Sent from my iPhone > > On Aug 5, 2012, at 12:38 PM, > "michael.se...@compucom.com<mailto:michael.se...@compucom.com>" > <michael.se...@compucom.com<mailto:michael.se...@compucom.com>> wrote: > > > The only situation in which I use the "ntp master" command is in a > > situation where for example HQ is providing clock for Servers and HQ clock > > is synchronizing with an external reliable source. > > > > In my lab I synchronize my PSTN with the Boulder Atomic Clock and > > synchronize my HQ router with the PSTN. HQ loopback provides clock for > > Servers, Switch, CUE and other branches. The following is what I use to > > accomplish this. Other than this scenario I do not use the "ntp master" > > command. > > > > ntp server 10.1.1.1 > > ntp source loopback0 > > ntp master > > > > Michael Sears > > > > > > -----Original Message----- > > From: > > ccie_voice-boun...@onlinestudylist.com<mailto:ccie_voice-boun...@onlinestudylist.com> > > [mailto:ccie_voice-boun...@onlinestudylist.com] On Behalf Of > > ccie_voice-requ...@onlinestudylist.com<mailto:ccie_voice-requ...@onlinestudylist.com> > > Sent: Sunday, August 05, 2012 10:00 AM > > To: ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com> > > Subject: CCIE_Voice Digest, Vol 78, Issue 14 > > > > Send CCIE_Voice mailing list submissions to > > ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com> > > > > To subscribe or unsubscribe via the World Wide Web, visit > > http://onlinestudylist.com/mailman/listinfo/ccie_voice > > or, via email, send a message with subject or body 'help' to > > ccie_voice-requ...@onlinestudylist.com<mailto:ccie_voice-requ...@onlinestudylist.com> > > > > You can reach the person managing the list at > > ccie_voice-ow...@onlinestudylist.com<mailto:ccie_voice-ow...@onlinestudylist.com> > > > > When replying, please edit your Subject line so it is more specific than > > "Re: Contents of CCIE_Voice digest..." > > > > > > Today's Topics: > > > > 1. Re: Switch QOS query (Justin McIntyre) > ! > 2.. Re: ntp master- is it necessary (Bruno Nonogaki) > > 3. Re: Switch QOS query (Bruno Nonogaki) > > 4. Re: ntp master- is it necessary (Justin McIntyre) > > > > > > ---------------------------------------------------------------------- > > > > Message: 1 > > Date: Sun, 5 Aug 2012 09:10:00 -0400 > > From: Justin McIntyre > > <justin.mcint...@blackbox.com<mailto:justin.mcint...@blackbox.com>> > > To: "ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com>" > > <ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com>> > > Subject: Re: [OSL | CCIE_Voice] Switch QOS query > > Message-ID: > > <0aed4c84-05d7-4f60-b91f-eeca67495...@blackbox.com<mailto:0aed4c84-05d7-4f60-b91f-eeca67495...@blackbox.com>> > > Content-Type: text/plain; charset="us-ascii" > > > > So I believe your on the right track with your QOS config but there are a > > few things that need to be modified. > > > > 1. I see an issue with your requirements. Have the priority-queue enabled > > but then also give queue 1 30% bandwidth. If priority-queue out is enabled > > then this over-rides the bandwidth command for that queue. I know you had > > some other questions as well specifically about how to drop certain traffic > > if a queue were 80% full. My suggestion to you would be to review Vik > > Mahlis QOS blog on the IPEXPERT website. Go to > > blog.ipexpert.com<http://blog.ipexpert.com> and select the voice blog on > > the left. Then look for the QOS section. I think this will clear up most of > > your questions and get you on your way. > > > > Thanks, > > > > Justin McIntyre > > > > This email and any files transmitted with it are confidential and are > > intended for the sole use of the individual to whom they are addressed. > > Black Box Corporation reserves the right to scan all e-mail traffic for > > restricted content and to monitor all e-mail in general. If you are not the > > intended recipient or you have received this email in error, any use, > > dissemination or forwarding of this email is strictly prohibited. If you > > have rece! ived this email in error, please notify the sender by replying > > to this email. > > > > > > ------------------------------ > > > > Message: 2 > > Date: Sun, 5 Aug 2012 10:14:44 -0300 > > From: Bruno Nonogaki <brun...@gmail.com<mailto:brun...@gmail.com>> > > To: Krishna <vinayak_...@yahoo.com<mailto:vinayak_...@yahoo.com>> > > Cc: Online Study > > <ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com>> > > Subject: Re: [OSL | CCIE_Voice] ntp master- is it necessary > > Message-ID: > > > > <CAP_RLdVVgHfN=fGytf6w7K5n5-nS6g3JnRiZfM5=tgsxozp...@mail.gmail.com<mailto:CAP_RLdVVgHfN=fGytf6w7K5n5-nS6g3JnRiZfM5=tgsxozp...@mail.gmail.com>> > > Content-Type: text/plain; charset="iso-8859-1" > > > > Hello Krishna, > > > > Yes, you are right. ntp master is not required. > > If you do ntp master, it may synchronize with its internal clock. > > > > It is a big mistake a lot of people do, including me before the OWLE > > Bootcamp, which I really recommend. > > > > Regards, > > > > Bruno > > > > > > On Sun, Aug 5, 2012 at 2:37 AM, Krishna > > <vinayak_...@yahoo.com<mailto:vinayak_...@yahoo.com>> wrote: > > > >> hi folks, > >> > >> i see some guys posts on ntp master command on the hq router ... i > >> was wondering why one would be needing ntp master command when it is > >> already being synchronized with external ntp server.... ntp master > >> will infact mess up the time if not configured correctly since ntp > >> master takes the stratum from the hardware(device) and be careful > >> when putting the command ntp master .. if it is required then it is > >> advised to keep the stratum number high compared to the extrenal ntp > >> server... > >> please correct me guys if i m wrong.... > >> > >> precisely, i felt that ntp master command is not required if that > >> dev! ice is synchronized with external ntp server.. any comments on my > >> advice is much appreciated... > >> > >> > >> thank you > >> krishna. > >> > >> _______________________________________________ > >> For more information regarding industry leading CCIE Lab training, > >> please visit www.ipexpert.com<http://www.ipexpert.com> > >> > >> Are you a CCNP or CCIE and looking for a job? Check out > >> www.PlatinumPlacement.com<http://www.PlatinumPlacement.com> > >> > > -------------- next part -------------- An HTML attachment was > > scrubbed... > > URL: > > </archives/ccie_voice/attachments/20120805/f5a0f2f7/attachment-0001.ht > > ml> > > > > ------------------------------ > > > > Message: 3 > > Date: Sun, 5 Aug 2012 10:21:30 -0300 > > From: Bruno Nonogaki <brun...@gmail.com<mailto:brun...@gmail.com>> > > To: Justin McIntyre > > <justin.mcint...@blackbox.com<mailto:justin.mcint...@blackbox.com>> > > Cc: "ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com>" > > <ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com>> > > Subject: Re: [OSL | CCIE_Voice] Switch QOS query > > Message-ID: > > > > <cap_rldxltmb2zgsretwit5xz5aiq7bxgwvooygfg1xvwugh...@mail.gmail.com<mailto:cap_rldxltmb2zgsretwit5xz5aiq7bxgwvooygfg1xvwugh...@mail.gmail.com>> > > Content-Type: text/plain; charset="iso-8859-1" > > > > Hi Vir, > > > > I agree with Justin regarding the issue with the requirements. > > > > And I also recommend you the Kevin Wallace's video: > > http://www.youtube.com/watch?v=IA4iOrn2eiU > > > > Regards, > > > > Bruno > > > > > > On Sun, Aug 5, 2012 at 10:10 AM, Justin McIntyre < > > justin.mcint...@blackbox.com<mailto:justin.mcint...@blackbox.com>> wrote: > > > >> So I believe your on the right track with your QOS config but there > >> are a few things that need to be modified. >! >> > >> 1. I see an issue with your requirements. Have the priority-queue > >> enabled but then also give queue 1 30% bandwidth. If priority-queue > >> out is enabled then this over-rides the bandwidth command for that > >> queue. I know you had some other questions as well specifically > >> about how to drop certain traffic if a queue were 80% full. My > >> suggestion to you would be to review Vik Mahlis QOS blog on the IPEXPERT > >> website. > >> Go to blog.ipexpert.com<http://blog.ipexpert.com> and select the voice > >> blog on the left. Then > >> look for the QOS section. I think this will clear up most of your > >> questions and get you on your way. > >> > >> Thanks, > >> > >> Justin McIntyre > >> > >> This email and any files transmitted with it are confidential and are > >> intended for the sole use of the individual to whom they are addressed. > >> Black Box Corporation reserves the right to scan all e-mail traffic > >> for restricted content and to monitor all e-mail in general. If you > >> are not the intended recipient or you have received this email in > >> error, any use, dissemination or forwarding of this email is strictly > >> prohibited. If you have received this email in error, please notify > >> the sender by replying to this email. > >> _______________________________________________ > >> For more information regarding industry leading CCIE Lab training, > >> please visit www.ipexpert.com<http://www.ipexpert.com> > >> > >> Are you a CCNP or CCIE and looking for a job? Check out > >> www.PlatinumPlacement.com<http://www.PlatinumPlacement.com> > >> > > -------------- next part -------------- An HTML attachment was > > scrubbed... > > URL: > > </archives/ccie_voice/attachments/20120805/9a62! 9423/attachment-0001.ht > > ml> > > > > ------------------------------ > > > > Message: 4 > > Date: Sun, 5 Aug 2012 09:21:54 -0400 > > From: Justin McIntyre > > <justin.mcint...@blackbox.com<mailto:justin.mcint...@blackbox.com>> > > To: "ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com>" > > <ccie_voice@onlinestudylist.com<mailto:ccie_voice@onlinestudylist.com>> > > Subject: Re: [OSL | CCIE_Voice] ntp master- is it necessary > > Message-ID: > > <f8c71ccc-5427-4073-a0cf-fb75be61c...@blackbox.com<mailto:f8c71ccc-5427-4073-a0cf-fb75be61c...@blackbox.com>> > > Content-Type: text/plain; charset="us-ascii" > > > > I believe you are correct Krishna. My thoughts on it are this. I think the > > NTP MASTER command is needed else it would not be part of the CLI. However, > > we must truly understand what the command does before we can decide if it > > is to be used or not. If a router is configured to sync to an external time > > source then if NTP master is used the stratum that is configured must be > > accounted for. At some point down the chain of NTP syncs the stratum will > > eventually reach a number high enough that the device on the end of the > > chain will prefer its internal clock as the stratum is better. So if the > > router is not synchronized to an external source but must act as a NTP > > source then this is when we want to use the NTP master command. Every > > situation/requirement is different and we need to ultimately understand the > > NTP Master command as to whether or not we need to use the command or not. > > > > Thanks, > > > > Justin McIntyre > > > > This email and any files transmitted with it are confidential and are > > intended for the sole use of the individual to whom they are addressed. > > Black Box Corporation reserves the right to scan all e-mail traffic for > > restricted content and to monitor all e-mail in general. If you are not the > > intended recipient or you have received this email in error, any use, > > dissemination or forwarding of this email is strictly prohibited. If you > > have received this emai! l in error, please notify the sender by replying > > to this email. > > > > > > ------------------------------ > > > > _______________________________________________ > > CCIE_Voice mailing list > > CCIE_Voice@onlinestudylist.com<mailto:CCIE_Voice@onlinestudylist.com> > > http://onlinestudylist.com/mailman/listinfo/ccie_voice > > > > > > End of CCIE_Voice Digest, Vol 78, Issue 14 > > ****************************************** > > > > > > > > > > _______________________________________________ > > For more information regarding industry leading CCIE Lab training, > > please visit www.ipexpert.com<http://www.ipexpert.com> > > > > Are you a CCNP or CCIE and looking for a job? Check out > > www.PlatinumPlacement.com<http://www.PlatinumPlacement.com> > > > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com<http://www.ipexpert.com> > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com<http://www.PlatinumPlacement.com>
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
