Well...
I've certainly found this "string" to be quite educational.
This is the way it should be, what the groupstudy was meant to be.
Even though it wasn't my inquiry I thank you all.
[EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>;
[EMAIL PROTECTED] <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Monday, July 03, 2000 4:33 PM
Subject: RE: Slow Speed in 2900 Switches, Pls Help!!
>Hey now...take a deep breath and pull back on the caps lock key a bit.
>Everyone is just doing their best to help.
>
>Good advice on starting from the simplest point. Back everything off to 10
>meg half/duplex, turn portfast on, set everything on one vlan, and etc.
>Then turn everything up...one thing at a time, from that point...if you
even
>need to. There is nothing wrong with doing full duplex over cat 5 cables
(I
>dunno where you get the two cable idea from for full-duplex connections but
>I have to agree that someone saying a full duplex connection runs at 200Mb
>has been working in marketing too long) but I usually use full-duplex only
>between switches and routers, everything else I like to leave set for auto
>(personal preference). Trunking (using more than one cable/nic between
>devices) is a beautiful thing but you only need to use that if you want
>redundancy or if the single ports are getting overloaded. Also, Cat5
>cabling is good to 100 meters...not 10. Check most any networking white
>paper for reference.
>
>Anyway, to answer Mr. Tong's questions:
>1) Hubs: It depends on which way you want to look at your speed question.
>All ports on the hub have access to the 10Mb half-duplex backplane. So
>every PC is contending for the 10 megs. I doubt you'd get about 6.5Mb out
>of it anyway...after that it's primarily just a collision domain. But all
>the machines together can't go beyond the 10Mb limit so in a way you could
>say that each PC has the capability of pushing 10 megs but only if none of
>the other machines are transmitting/receiving at that time.
>
>2) The switch: Each user would have the capability of hitting 100Mb but if
>you have a 100Mb backbone then no single user will really get that speed
(in
>fact, I'd intentionally leave the users at 10Mb half-duplex unless they
>REALLY need the speed increase). However, if two PC's on the same switch
>are talking to each other then they'll assumedly get the full amount of
>speed without slowing down any other computers.
>
>3) Speed and configuration issues: Feel free to post the interface stats
so
>we can see what is going on. Alternately just do what Stephen said and
>start with the most basic config possible and go from there. Cisco's web
>site has many sample configurations that may help you out.
>
>Hope this helps....I've found that it's usually one minor little command
>that got missed or set wrong. Once that is taken care of you just sit back
>and watch the data fly by.
>
>Daniel
>
>-----Original Message-----
>From: Stephen Skinner [mailto:[EMAIL PROTECTED]]
>Sent: Monday, July 03, 2000 2:42 PM
>To: [EMAIL PROTECTED]
>Cc: [EMAIL PROTECTED]
>Subject: Re: Slow Speed in 2900 Switches, Pls Help!!
>
>
>JEES.....you have been given a load of crap advise......!!!!!!
>
>FIRST lets start at the begininng .....you have 5 pc`s which are connected
>to your switch .....they , i take it are 100 meg cards ...make sure they
are
>
>in HALF DUPLEX....(send and recieve on the same cable) NOT... FULL DUPLEX
>(send and recieve on TWO different CABLES)
>(THE WAY YOU GET 20/200 MEG IS YOU TRUNK (2 THATS 2) CABLES TOGETHER USING
>TWO PORTS....... ANYONE TELLS YOU OTHER WISE IS A FOOL)in my experience you
>should make sure the pc cards are set to this ...
>
>SECOND...are you connecting to your main link at 100 meg.... if your using
>cat 5 cabling and the main router is more than 10 meters away IR-REGARDLES
>of what the switch says ...you wont be getting it...
>
>THIRD...FORGET about spanning tree, trunking and all that crap ...START at
>the beginning (I`M NO CCIE BUT I HAVE BEEN ROUND LONG ENOUGH TO KNOW THAT
>YOU DON`T THROW THE CAR AWAY WHEN A CAM BELT GOES)
>95% of your problems will be simple you just need to start at the
>begining.......all the info you have been given is from PAPER CCNP/A`S
>IF THEY KNEW WHAT THEY WERE TALKING ABOUT YOU WOULD HAVE IT FIXED BY
>NOW!!!!!
>
>
>mail me more if you want help
>
>steve (IEEE,ITAU commite`s CCNP MCSE PSS ACE SSA Co-contributor to
>Win200,RIP V2 CCSE JSE CLP )
>
>
>>From: "Chee Tong Sim" <[EMAIL PROTECTED]>
>>Reply-To: "Chee Tong Sim" <[EMAIL PROTECTED]>
>>To: [EMAIL PROTECTED]
>>Subject: Slow Speed in 2900 Switches, Pls Help!!
>>Date: Mon, 03 Jul 2000 05:51:36 GMT
>>
>>Dear friends,
>>
>>I have a few questions to ask:
>>
>>1) Our company Network are running at 100M speed. Now if I connect a 10M
>>speed 3com hub to one of the ports in cisco 2900 switches (100M speed) in
>>the company network, and I connect 5 pc to the 3com hub, so, the network
>>speed of PC is 10M divided by 5= 2M each or 10M each?
>>
>>2) As the users complain about the speed, my boss asked me to use the
brand
>>new 2900 switch (100M speed) to replace the 3com hub. So I connect 2900
>>switch to 2900 switch that in company network, and connect 5 Pcs to the
>>2900
>>switch, so the speed of PC should be 100M each or 100M devided by 5= 20M?
>>
>>3) But user still complain about the speed, I use the ftp function to
check
>>the speed and found the speed is only 150kb/sec= 0.15M only. I suspect
>>because the switches that I used is a brand new switch, I havent configure
>>VLAN and spanning tree protocol on the new switch to block to packet
>>broadcase, so the speed is slow. If this is the case, can I consult you,
>>how
>>to configure VLAN and spanning tree on the new switches? Can anyone teach
>>me? I ever seen the configuration file of a VLAN switches, but I don't
know
>>what command should I type to configure VLAN on 2900 switch. What is the
>>procedures? Please help.
>>
>>Thanks in advance.
>>
>>Regards,
>>Chee Tong
>>________________________________________________________________________
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