[c-nsp] full duplex mismatch speed - dynamips

[Alessandro Braga]

Jeff,

probably your configurations dont are correct or the autonegotiation
dont work properly, try put the shut and no shut commands on envolved
interfaces.

i dont remember of the any case this.


Rgs,

AB

2010/8/17 Jeferson Guardia <jefersonf at gmail.com>:
>  Guys,
>
> Thanks for all replies, googling it I came across a link at groupstudy from
> someone experiencing the same problem before when labbing up CCIE
> topologies.
>
> http://www.groupstudy.com/archives/ccielab/200701/msg01450.html
>
> I think it is a dynamips 'bug/weird behavior' , the way of getting rid of
> this issue is only disabling CDP, if anyone knows another way out, please
> let me know.
>
> rgs,
>
> 2010/8/17 Alessandro Braga <sandro.unix at gmail.com>
>>
>> Jeff,
>>
>> use the 'show interface FastEthernet0/0' command on this router (R3)
>> and see a problem:
>>
>> 'duplex mismatch discovered on FastEthernet0/0 ''(not full duplex)''
>> <- this interface not operate in fullduplex mode.'
>>
>> Att,
>> AB
>>
>> 2010/8/17 Alessandro Braga <sandro.unix at gmail.com>:
>> > Verify duplex and speed configurations on interface, the rule is:
>> > autoXauto, forcedXforced. If problem not solve, disable cdp.
>> >
>> > Att,
>> > AB
>> >
>> >
>> >
>> > 2010/8/17 Jeferson Guardia <jefersonf at gmail.com>:
>> >>  Guys,
>> >>
>> >> Anyone knows how to solve this on dynamips? (router with lan switch
>> >> connection) - I thought that setting
>> >> speed auto would solve it.
>> >>
>> >> R3#
>> >> *Mar  1 00:12:08.323: %SYS-5-CONFIG_I: Configured from console by
>> >> console
>> >> *Mar  1 00:12:10.027: %LINK-3-UPDOWN: Interface FastEthernet0/0,
>> >> changed
>> >> state t
>> >> o up
>> >> *Mar  1 00:12:11.027: %LINEPROTO-5-UPDOWN: Line protocol on Interface
>> >> FastEthern
>> >> et0/0, changed state to up
>> >> *Mar  1 00:12:23.527: %CDP-4-DUPLEX_MISMATCH: duplex mismatch
>> >> discovered on
>> >> Fast
>> >> Ethernet0/0 (not full duplex), with Router FastEthernet1/3 (full
>> >> duplex).
>> >> *Mar  1 00:12:24.079: %CDP-4-DUPLEX_MISMATCH: duplex mismatch
>> >> discovered on
>> >> Fast
>> >> Ethernet0/0 (not full duplex), with Router FastEthernet1/3 (full
>> >> duplex).
>> >> *Mar  1 00:12:26.295: %CDP-4-DUPLEX_MISMATCH: duplex mismatch
>> >> discovered on
>> >> Fast
>> >> Ethernet0/0 (not full duplex), with Router FastEthernet1/3 (full
>> >> duplex).
>> >> *Mar  1 00:13:10.571: %CDP-4-DUPLEX_MISMATCH: duplex mismatch
>> >> discovered on
>> >> Fast
>> >> Ethernet0/0 (not full duplex), with Router FastEthernet1/3 (full
>> >> duplex).
>> >> R3#
>> >> R3#
>> >> *Mar  1 00:13:59.455: %CDP-4-DUPLEX_MISMATCH: duplex mismatch
>> >> discovered on
>> >> Fast
>> >> Ethernet0/0 (not full duplex), with Router FastEthernet1/3 (full
>> >> duplex).
>> >>
>> >>
>> >> Rgs,
>> >> _______________________________________________
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>> >>
>> >
>
>