From: Ben Holko (ben.holko@datacom.com.au)
Date: Tue Jan 30 2007 - 05:33:32 ART
noted and thanks to all - it seems setting full-duplex on the router interfaces has fixed it
thanks again!
________________________________
From: nobody@groupstudy.com on behalf of Dwi C Taniel
Sent: Tue 1/30/2007 6:38 PM
To: ccielab@groupstudy.com
Subject: Re: Dynamips - duplex/speed mismatches, cannot correct ?
Hi John,
The duplex can be set for both ethernet and fast ethernet interface on
the router that attached to that switch.
The fast ethernet interface has speed settings enabled compared with
the ethernet counterparts.
I have set the duplex to match between the attached router and the switch.
However, the duplex could be able to be set only from the router side
to get rid of that annoying CDP messages of duplex mismatch.
Hope it helps,
DC
========
http://www.dwichandra.info <http://www.dwichandra.info/>
dc@dwichandra.info
--------
visit Transformers movie link at http://www.dwichandra.info/transformers
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On 01/30/2007, John Jones <acer0001@gmail.com> wrote:
> I ended up disabling CDP until I could figure out what's up. I tried to hard
> set speed/duplex and the same other options as you.
>
> John
>
>
> On 1/29/07, Ben Holko <ben.holko@datacom.com.au> wrote:
>>
>> Hello all again,
>>
>> Am going through IE on Dynamips, and cannot seem to correct the CDP
>> duplex mismatches that are detected.
>>
>> I have tried shutting the port on the sw, changing speed/duplex to 10
>> half, then un shut, but it always seems to go to 100mb full?
>>
>>
>>
>> Rack1SW1#
>> *Mar 1 01:55:49.071: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered
>> on FastEthernet1/3 (not hal
>> f duplex), with Rack1R3 Ethernet0/0 (half duplex).
>> *Mar 1 01:55:50.071: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered
>> on FastEthernet1/3 (not hal
>> f duplex), with Rack1R3 Ethernet0/0 (half duplex).
>> Rack1SW1#
>> *Mar 1 01:55:51.071: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered
>> on FastEthernet1/3 (not hal
>> f duplex), with Rack1R3 Ethernet0/0 (half duplex).
>> Rack1SW1#
>> *Mar 1 01:56:51.455: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered
>> on FastEthernet1/3 (not hal
>> f duplex), with Rack1R3 Ethernet0/0 (half duplex).
>> Rack1SW1#
>> *Mar 1 01:57:51.587: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered
>> on FastEthernet1/3 (not hal
>> f duplex), with Rack1R3 Ethernet0/0 (half duplex).
>> Rack1SW1#
>> Rack1SW1#
>> Rack1SW1#
>> Rack1SW1#show run int f1/3
>> Building configuration...
>>
>> Current configuration : 59 bytes
>> !
>> interface FastEthernet1/3
>> switchport access vlan 3
>> end
>>
>> Rack1SW1#show int f1/3
>> FastEthernet1/3 is up, line protocol is up
>> Hardware is Fast Ethernet, address is cc06.0cb8.f103 (bia
>> cc06.0cb8.f103)
>> MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
>> reliability 255/255, txload 1/255, rxload 1/255
>> Encapsulation ARPA, loopback not set
>> Keepalive set (10 sec)
>> Auto-duplex, Auto-speed
>> ARP type: ARPA, ARP Timeout 04:00:00
>> Last input 00:00:34, output never, output hang never
>> Last clearing of "show interface" counters never
>> Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
>> Queueing strategy: fifo
>> Output queue: 0/40 (size/max)
>> 5 minute input rate 0 bits/sec, 0 packets/sec
>> 5 minute output rate 0 bits/sec, 0 packets/sec
>> 0 packets input, 0 bytes, 0 no buffer
>> Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
>> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>> 0 input packets with dribble condition detected
>> 0 packets output, 0 bytes, 0 underruns
>> 0 output errors, 0 collisions, 2 interface resets
>> 0 babbles, 0 late collision, 0 deferred
>> 0 lost carrier, 0 no carrier
>>
>> Rack1SW1#conf t
>> Enter configuration commands, one per line. End with CNTL/Z.
>> Rack1SW1(config)#int f1/3
>> Rack1SW1(config-if)#shut
>> Rack1SW1(config-if)#speed 10
>> Rack1SW1(config-if)#dup half
>> Rack1SW1(config-if)#
>> *Mar 1 01:58:35.607: %LINK-5-CHANGED: Interface FastEthernet1/3,
>> changed state to administratively
>> down
>> *Mar 1 01:58:36.607: %LINEPROTO-5-UPDOWN: Line protocol on Interface
>> FastEthernet1/3, changed state
>> to down
>> Rack1SW1(config-if)#no shut
>> Rack1SW1(config-if)#^Z
>> Rack1SW1#show run int f1/
>> *Mar 1 01:58:39.315: %SYS-5-CONFIG_I: Configured from console by
>> console
>> Rack1SW1#show run int f1/3
>> Building configuration...
>>
>> Current configuration : 82 bytes
>> !
>> interface FastEthernet1/3
>> switchport access vlan 3
>> duplex half
>> speed 10
>> end
>>
>> Rack1SW1#
>> *Mar 1 01:58:40.431: %LINEPROTO-5-UPDOWN: Line protocol on Interface
>> FastEthernet1/3, changed state
>> to up
>> Rack1SW1#
>> Rack1SW1#
>> Rack1SW1#show int f1/3
>> FastEthernet1/3 is up, line protocol is up
>> Hardware is Fast Ethernet, address is cc06.0cb8.f103 (bia
>> cc06.0cb8.f103)
>> MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
>> reliability 255/255, txload 1/255, rxload 1/255
>> Encapsulation ARPA, loopback not set
>> Keepalive set (10 sec)
>> Full-duplex, 100Mb/s
>> ARP type: ARPA, ARP Timeout 04:00:00
>> Last input 00:00:52, output never, output hang never
>> Last clearing of "show interface" counters never
>> Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
>> Queueing strategy: fifo
>> Output queue: 0/40 (size/max)
>> 5 minute input rate 0 bits/sec, 0 packets/sec
>> 5 minute output rate 0 bits/sec, 0 packets/sec
>> 0 packets input, 0 bytes, 0 no buffer
>> Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
>> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>> 0 input packets with dribble condition detected
>> 0 packets output, 0 bytes, 0 underruns
>> 0 output errors, 0 collisions, 4 interface resets
>> 0 babbles, 0 late collision, 0 deferred
>> 0 lost carrier, 0 no carrier
>> 0 output buffer failures, 0 output buffers swapped out
>> Rack1SW1#
>> *Mar 1 01:57:51.587: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered
>> on FastEthernet1/3 (not hal
>> f duplex), with Rack1R3 Ethernet0/0 (half duplex).
>> *Mar 1 01:57:51.587: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered
>> on FastEthernet1/3 (not hal
>> f duplex), with Rack1R3 Ethernet0/0 (half duplex).
>>
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