ntp won't lock
in [Cisco]
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From: Steve on 5 Jan 2010 23:13 On Dec 4 2009, 10:39 am, Aaron Leonard <Aa...(a)Cisco.COM> wrote: > ~ > Due to a recent hardware revision in the 85x/87x routers, you'll > ~ > need to upgrade IOS to get [S]NTP to work right. > ~ > ~ I have upgraded the IOS and the issue is indeed resolved. Thanks again. > > Great, thanks for the confirmation. > > Aaron Rob, what version of IOS did you move to? I upgraded my 871W to 12.4. (24)T2 and I still have the NTP problem on this router.
From: Rob on 6 Jan 2010 03:42 Steve <steve(a)heyvan.com> wrote: > On Dec 4 2009, 10:39 am, Aaron Leonard <Aa...(a)Cisco.COM> wrote: >> ~ > Due to a recent hardware revision in the 85x/87x routers, you'll >> ~ > need to upgrade IOS to get [S]NTP to work right. >> ~ >> ~ I have upgraded the IOS and the issue is indeed resolved. Thanks again. >> >> Great, thanks for the confirmation. >> >> Aaron > > Rob, what version of IOS did you move to? I upgraded my 871W to 12.4. > (24)T2 and I still have the NTP problem on this router. 12.4(15)T11 This is a version in the same train that came with the router originally. Unfortunately it does not contain recent ADSL firmware so I separately downloaded and installed that (adsl_alc_20190_4.0.018.bin). This fixes problems I had with the ADSL line.
From: Aaron Leonard on 6 Jan 2010 16:46
On Tue, 5 Jan 2010 20:13:55 -0800 (PST), Steve <steve(a)heyvan.com> wrote: ~ On Dec 4 2009, 10:39�am, Aaron Leonard <Aa...(a)Cisco.COM> wrote: ~ > ~ > Due to a recent hardware revision in the 85x/87x routers, you'll ~ > ~ > need to upgrade IOS to get [S]NTP to work right. ~ > ~ ~ > ~ I have upgraded the IOS and the issue is indeed resolved. �Thanks again. ~ > ~ > Great, thanks for the confirmation. ~ > ~ > Aaron ~ ~ Rob, what version of IOS did you move to? I upgraded my 871W to 12.4. ~ (24)T2 and I still have the NTP problem on this router. There are really two aspects here: 1. The hardware change to the 85x/87x routers. This triggered clocking problems (regardless of IOS train), which were remedied in software by CSCta86311 in 15.0(1)M 12.4(24)T2 12.4(22)T3 12.4(20)T4 12.4(15)T10. (Since you have 12.4(24)T2, I guess this doesn't apply to you.) 2. The replacement in IOS of NTPv3 by NTPv4. This happened in 12.4(20)T. Our NTPv4 code at present is quite a bit more finicky than NTPv3. (See for example CSCsy39514 [NTP: Clock synchronization lost after a while], which is marked U at present, but which I doubt has vanished.) If it's an option for you, you could configure SNTP rather than NTP - SNTP is quite un-finicky. |