hey! somebody gets it! Thanks Priscilla:
It always bothers me that full-duplex is refereed to as 200 meg. The
server folks always think that all their performance issues will go away
when they go to "full-duplex". Sure, no collision, but considering the
unbalanced nature of client/server traffic it doesn't make that big of a
throughput difference.
I'm surprised that my T1's are not referred to as 3 mbps links. They are
full-duplex too :->
DaveC
Oppenheimer wrote:
>
> At 12:23 AM 4/26/01, md. nazri wrote:
> >if it's true..that's a good indicator for hardware health checkup.....
> >another Q, if we set the FE to be full-duplex, does it mean we get 100meg
> >for tx and 100meg for rx, so total 200meg for a connection...?
>
> Each of the two stations on a point-to-point FE full-duplex link get
> dedicated 100 Mbps bandwidth for transmitting. One station's transmit
> medium is the other's receive medium. Some people call this 200 Mbps. In
> actuality most traffic types don't take advantage of this.
>
> >----- Original Message -----
> >From: "Priscilla Oppenheimer"
> >To:
> >Sent: Thursday, April 26, 2001 9:07 AM
> >Subject: Re: FastEthernet is up, Line protocol down [7:1828]
> >
> >
> > > I don't think it's just Fast Ethernet. I've seen "Slow" Ethernet report
> > > that the interface is up, down when nothing was attached. It seems to
> just
> > > be an indication that the interface passed a hardware check.
> > >
> > > Priscilla
> > >
> > > At 08:21 PM 4/25/01, md. nazri wrote:
> > > >thanks for the answer...
> > > >i understand that LP will down if no connection attach, but why FE
still
> >up,
> > > >does it up forever until we shut it down? Does it apply the same to
> > > >Ethernet..?
> > > >----- Original Message -----
> > > >From: "Vincent Chong"
> > > >To:
> > > >Sent: Wednesday, April 25, 2001 3:48 PM
> > > >Subject: Re: FastEthernet is up, Line protocol down [7:1828]
> > > >
> > > >
> > > > > 1) I guess you enable the fastethernet port in the running
> > > > > configuration. You have to
> > > > > shutdown the port, so the port will administrative shut down
and
> >line
> > > > > protocol down.
> > > > >
> > > > > 2) Line protocol will up if there is any phyiscal connection
> >attached
> > > >to
> > > > > Fastethernet.
> > > > > Becasue the port in your router will detect keepalive signal,
> when
> >it
> > > > > detected, it will
> > > > > up. You can type no keepalive under interface configuration,
> >the
> > > > > ethernet interface
> > > > > will keep up even no physical connection. You have to enable
the
> > > > > interface, of courese.
> > > > >
> > > > > Hope this help
> > > > > Vincent Chong
> > > > >
> > > > >
> > > > >
> > > > > ""md. nazri"" hi all,
> > > > > > got one question regarding FastEthernet on Cisco 2620..
> > > > > > why the status showed FastEthernet is up, Line protocol down
> >although
> > > >the
> > > > > > cable was pulled out from the port...in what cases the port will
> > > >down..any
> > > > > > help appreciated
> > > > > >
> > > > > > tq
> > > > > > FAQ, list archives, and subscription info:
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> > >
> > >
> > > ________________________
> > >
> > > Priscilla Oppenheimer
> > > http://www.priscilla.com
> > > FAQ, list archives, and subscription info:
> >http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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> >http://www.groupstudy.com/list/cisco.html
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>
> ________________________
>
> Priscilla Oppenheimer
> http://www.priscilla.com
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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