This is true of switch ports but the original post was regarding 10BaseT
interfaces on Cisco routers. In the past, there were no Cisco 10BaseT
interfaces that supported full duplex. It appears that has changed on
the 2600/3600 series beginning with IOS 12.0(4)T. It still remains true
for other platforms as far as I can tell.
John
>>> "Brian" 6/14/01 3:29:28 PM >>>
Pete you are correct, 10 meg on a hub/repeater is not full duplex, 10
meg
switch ports can be full duplex, though are not necessarily that way.
Brian "Sonic" Whalen
Success = Preparation + Opportunity
On Thu, 14 Jun 2001, Peter I. Slow, CCNP wrote:
> I beg to differ.
> I can set an interface for ten megs and full dup.
> also.
> arent swith interfaces full duplez?
> what about 10 M interfaces?
> that one i am unsure about...
> Peter Slow, CCNP Voice Specialist
> Network Engineer
> Planetary Networks
> 535 West 34th Street
> New York, New York
> 10001
>
> cell: (516)782.1535
> desk: (646)792.2395
> mail: [EMAIL PROTECTED]
>
> ----- Original Message -----
> From: John Neiberger
> To:
> Sent: Thursday, June 14, 2001 1:39 PM
> Subject: Re: duplex [7:8553]
>
>
> > Oh, okay. I should have been more specific in my previous email.
> > Fastethernet can be full or half duplex. Ethernet can only be
half
> > duplex which is why it does not mention it in that output. That is
a
> > standard 10BaseT interface and can only do 10Mbs and half duplex.
> >
> > HTH,
> > John
> >
> > >>> "Vlade" 6/14/01 11:11:03 AM >>>
> > It is an ethernet. Here is the show int output:
> > I don't see anything indicating the duplex or half duplex.
> >
> > Cisco-4700#sh int eth1
> > Ethernet1 is up, line protocol is up
> > Hardware is Am79c970, address is 0060.471f.8b3b (bia
0060.471f.8b3b)
> > Description: To Internal Ethernet
> > Internet address is 63.109.136.65/28
> > MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load
> > 8/255
> > Encapsulation ARPA, loopback not set, keepalive set (10 sec)
> > ARP type: ARPA, ARP Timeout 04:00:00
> > Last input 00:00:00, output 00:00:00, output hang never
> > Last clearing of "show interface" counters 17w6d
> > Queueing strategy: fifo
> > Output queue 0/150, 0 drops; input queue 0/150, 619 drops
> > 5 minute input rate 125000 bits/sec, 69 packets/sec
> > 5 minute output rate 340000 bits/sec, 77 packets/sec
> > 622847166 packets input, 2416393310 bytes, 0 no buffer
> > Received 16924 broadcasts, 0 runts, 0 giants
> > 1 input errors, 1 CRC, 1 frame, 0 overrun, 0 ignored, 0 abort
> > 0 input packets with dribble condition detected
> > 734906950 packets output, 2580891812 bytes, 0 underruns
> > 47 output errors, 4136024 collisions, 0 interface resets
> > 0 babbles, 0 late collision, 7288239 deferred
> > 47 lost carrier, 0 no carrier
> > 0 output buffer failures, 0 output buffers swapped out
> > Cisco-4700#
> >
> > ""John Neiberger"" wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > What type of interface are you talking about?
> > >
> > > Serial interfaces are full duplex, ethernet are either half or
full
> > but
> > > the show interface output will indicate the current mode.
> > >
> > > >>> "Vlade" 6/14/01 10:35:02 AM >>>
> > > Is there a way to check if an interface on a router is running
at
> > full
> > > or
> > > half duplex? Show int shows the bandwidth but not the mode.
Thanks.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=8631&t=8553
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