clock and flapping

[WEERAKOO69BA]

Dear all,

My router's clock is...

FirstFloor_SW1#sh clock
12:03:49.649 MCT Tue Mar 15 2011

#show logging..

Mar 15 07:54:00:

Two different times. Can you help me pls.

My second question is

To avoide the flapping in my access switch,i have given the command as " ip dhcp exclude addres 192.168.80.80 192.168.80.81" in the dhcp server( in this case dhcp server=core1).But I have noticed still the flappling is there on 80 and 81 ips.So I issuesd the command as clear ip dhcp binding 192.168.80.80 and 81.But i got the message as--"% Adddress 192.168.80.80 is not in the database.".And also flopping is still there..Problem did not solve.What kindof solution you can recommand me ??

[johnlloyd_13]

hi,

for clocking, kindly try these commands and test again.

Router(config)#service timestamps debug datetime localtime show-timezone year
Router(config)#service timestamps log datetime localtime show-timezone year

Router(config)#clock timezone

as for the host flapping issue, probably the 192.168.80.80 and .81 IPs are statically assigned so it won't be cleared. kindly trace it on your LAN if there's any duplicate.

[WEERAKOO69BA]

Hi first of al let me to thank.

I have fixed the time stamp problem.But flapping is still there.What i did,I found the staticaly assigned port for 80 which is giving frequent flapping (ge0/20) and shutdown just to see duplicate ip.Then I pinged 2,3 times for ip 80(for the time being forgetabout ip 81.its bit stable).But it didn't ping .That means there is no duplicate ip isn't it?Then I reset the port.But the result is same.Do i have to manually check for duplicat ip??

Thanks

[johnlloyd_13]

Hi,

Kindly advise on which device you've set IPs .80 and .81. Could you post the config of your access switch? Try to perform clear arp on the device giving you the error and test again.

Sent from Cisco Technical Support iPhone App

[WEERAKOO69BA]

Dear gents,

Thanks lot for dedicated you valuable time on behalf of me.And also thx you very much for the quick responses on time.I have solved the problem.For that I have to observe certain ,certain thing.The problem was very funny and would like to mention here for your knowledge.

*****there was no dulicate ip.

      Ip was withing the range of  "exclude  DHCP "

       no prot problem,no cable prob

       Problem was this pc goes  to sleep mode after some times.Once the user go away from the pc more than 10 min,this happens.So I removed the sleep mode .Till now working fine.

Thanks every body.