Nathan,
I didn't get to test this last night on the home system but I
checked it today on a junk server with a few routers and had no issues.
I'm running less than 20% utilization on my server without tuning or
anything. This server is an Ubuntu 10.04 LTS workstation.
RTR1(config)#
RTR1(config)#do sho ver | in IOS
Cisco IOS Software, 7200 Software (C7200-JK9O3S-M), Version 12.4(25),
RELEASE SOFTWARE (fc2)
RTR1(config)#
RTR1(config)#
RTR1(config)#do sho ip int br | ex un
Interface IP-Address OK? Method
Status Protocol
FastEthernet0/0 1.1.1.1 YES manual
up up
Loopback0 11.11.11.11 YES manual
up up
RTR1(config)#
RTR1(config)#
RTR1(config)#do sho run | in ntp
ntp master 1
ntp update-calendar
RTR1(config)#
RTR1(config)#do sho ntp asso
address ref clock st when poll reach delay
offset disp
*~127.127.7.1 .LOCL. 0 59 64 377 0.0
0.00 0.0
* master (synced), # master (unsynced), + selected, - candidate, ~
configured
RTR1(config)#
RTR1(config)#do sho ntp statu
Clock is synchronized, stratum 1, reference is .LOCL.
nominal freq is 250.0000 Hz, actual freq is 250.0000 Hz, precision is 2**18
reference time is D0320CD1.D9DE88F2 (13:23:29.851 UTC Wed Sep 8 2010)
clock offset is 0.0000 msec, root delay is 0.00 msec
root dispersion is 0.02 msec, peer dispersion is 0.02 msec
RTR1(config)#
RTR1(config)#do sho run | s ospf
router ospf 5
log-adjacency-changes
network 1.1.1.0 0.0.0.255 area 5
network 11.11.11.11 0.0.0.0 area 5
RTR1(config)#do sho ip ospf ne
Neighbor ID Pri State Dead Time Address Interface
22.22.22.22 1 FULL/DR 00:00:36 1.1.1.2
FastEthernet0/0
RTR1(config)#
----------------------------------------------------------------------------------------------------------------
RTR2(config)#
RTR2(config)#do sho ver | in IOS
Cisco IOS Software, 7200 Software (C7200-JK9O3S-M), Version 12.4(25),
RELEASE SOFTWARE (fc2)
RTR2(config)#
RTR2(config)#do sho ip int br | ex un
Interface IP-Address OK? Method
Status Protocol
FastEthernet1/0 1.1.1.2 YES manual
up up
Loopback0 22.22.22.22 YES manual
up up
RTR2(config)#
RTR2(config)#do sho run | in ntp
ntp clock-period 17179867
ntp server 1.1.1.1
RTR2(config)#
RTR2(config)#do sho ntp asso
address ref clock st when poll reach delay
offset disp
*~1.1.1.1 .LOCL. 1 57 64 377 5.4
-1.38 3.8
* master (synced), # master (unsynced), + selected, - candidate, ~
configured
RTR2(config)#
RTR2(config)#do sho ntp statu
Clock is synchronized, stratum 2, reference is 1.1.1.1
nominal freq is 250.0000 Hz, actual freq is 250.0000 Hz, precision is 2**18
reference time is D0320D11.1EC62020 (13:24:33.120 UTC Wed Sep 8 2010)
clock offset is -1.3847 msec, root delay is 5.43 msec
root dispersion is 5.17 msec, peer dispersion is 3.75 msec
RTR2(config)#
RTR2(config)#do sho run | s ospf
router ospf 5
log-adjacency-changes
network 1.1.1.0 0.0.0.255 area 5
network 22.22.22.22 0.0.0.0 area 5
RTR2(config)#
RTR2(config)#do sho ip ospf ne
Neighbor ID Pri State Dead Time Address Interface
11.11.11.11 1 FULL/BDR 00:00:35 1.1.1.1
FastEthernet1/0
RTR2(config)#
--Hammer--
On 9/7/2010 9:57 AM, Nathan Pease wrote:
> Thanks for looking at this for me. I just confirmed that it will also
> happen when running eigrp or no routing protocol at all.
>
> On Tue, Sep 7, 2010 at 7:28 AM, --Hammer-- <bhmccie_at_gmail.com
> <mailto:bhmccie_at_gmail.com>> wrote:
>
> I can't get to my Ubuntu setup today but I have a Debian setup at
> home and I will try it out this evening and get back with you.
>
> Debian server
> |
> .1q
> |
> breakout 3750
> |
> 4x 3560s
>
>
> --Hammer--
>
>
> On 9/7/2010 9:22 AM, Nathan Pease wrote:
>> Thanks Hammer! Are you running ntp master and ospf on the same
>> router? I have tried this on my server and my laptop in both
>> Windows and Ubuntu. I just
>> downloaded c7200-adventerprisek9-mz.150-1.M3.bin thinking that
>> going to 15.0 ios would help, but I get the same result every time.
>>
>> The only thing they all have in common is that I run ntp master
>> and have ospf adjacencies. I have tried this on a very simple
>> three router ospf network. Those were the only two protocols
>> running, but my ospf adjacencies begin flapping as soon as I do
>> ntp master on one of my routers.
>>
>> On Tue, Sep 7, 2010 at 6:44 AM, --Hammer-- <bhmccie_at_gmail.com
>> <mailto:bhmccie_at_gmail.com>> wrote:
>>
>> Running NTP labs on my Ubuntu install has no issues.
>>
>> --Hammer--
>>
>>
>>
>> On 9/6/2010 4:54 PM, Matthew George wrote:
>>
>> I think this may be just a Windows issue.
>>
>> -Matt George
>>
>> -----Original Message-----
>> From: nobody_at_groupstudy.com
>> <mailto:nobody_at_groupstudy.com>
>> [mailto:nobody_at_groupstudy.com
>> <mailto:nobody_at_groupstudy.com>] On Behalf Of
>> garry baker
>> Sent: Monday, September 06, 2010 5:25 PM
>> To: Nadeem Rafi
>> Cc: Cisco certification
>> Subject: Re: GNS3 ntp master crashing my PC
>>
>> running 3725 12.4(15)T12 on Ubuntu and do not see any
>> issues with this with
>> GNS3 0.6.1 and dynamips 0.2.8-RC2...
>>
>> thanks..
>> garry..
>>
>> --
>> Garry L. Baker
>>
>> "There is no 'patch' for stupidity." -
>> www.sqlsecurity.com <http://www.sqlsecurity.com>
>>
>>
>> On Mon, Sep 6, 2010 at 11:58 AM, Nadeem
>> Rafi<nrafia_at_gmail.com <mailto:nrafia_at_gmail.com>> wrote:
>>
>> never seen such issue on my GNS3/Dynamips.........
>>
>> On Mon, Sep 6, 2010 at 8:00 PM, Matthew
>> George<mgeorge_at_geores.net
>> <mailto:mgeorge_at_geores.net>> wrote:
>>
>> When writing the NTP labs for my website I
>> noticed the same issue.
>>
>> Anytime
>>
>> I
>> attempted to configure an NTP master on dynamips
>> the processor
>>
>> utilization
>>
>> maxes out and the router freezes up.
>>
>> When trying to change the idle pc value the only
>> one available was
>>
>> 0x000000
>>
>> [1000]
>>
>> The only way around this seems to be to use real
>> hardware or skip
>> the NTP labs.
>>
>> -Matt George
>>
>> -----Original Message-----
>> From: nobody_at_groupstudy.com
>> <mailto:nobody_at_groupstudy.com>
>> [mailto:nobody_at_groupstudy.com
>> <mailto:nobody_at_groupstudy.com>] On Behalf
>> Of Radioactive Frog
>> Sent: Monday, September 06, 2010 7:51 AM
>> To: Nathan Pease
>> Cc: ccielab_at_groupstudy.com
>> <mailto:ccielab_at_groupstudy.com>
>> Subject: Re: GNS3 ntp master crashing my PC
>>
>> Does your PC CPU utilization goes high when you
>> turn NTP master on?
>>
>>
>> On Mon, Sep 6, 2010 at 7:58 AM, Nathan Pease
>> <pease.nathan_at_gmail.com
>> <mailto:pease.nathan_at_gmail.com>>
>> wrote:
>>
>> Does anyone have issues when using GNS3 to do
>> ntp labs? As soon as
>> I put ntp master on a router in GNS3, it
>> starts freezing up and
>> loosing adjacencies.
>> I
>> have tried this on windows and Ubuntu as well
>> as several different
>> IOS versions and routers in GNS3. Has anyone
>> had this same experience?
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> __________________________________________________________________
>> ____ _ Subscription information may be found at:
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>>
>>
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>>
>> ____________________________________________________________________
>> ___ Subscription information may be found at:
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>>
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>>
>> ____________________________________________________________________
>> ___ Subscription information may be found at:
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>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> ______________________________________________________________________
>> _ Subscription information may be found at:
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>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
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>>
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>>
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Blogs and organic groups at http://www.ccie.net
Received on Wed Sep 08 2010 - 13:47:22 ART
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