Convince them to get troubleshooting tools when they don't even have
switches? *chuckles* Good luck.
--
Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+
List email: [EMAIL PROTECTED]
Homepage: http://jason.artoo.net/
""Chuck Larrieu"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hhmmmmm......
>
> Are these hubs daisy chained?
>
> Does the noticeable slowdown happen al the time, or can you isolate it to
> particular times of day?
>
> Do you have an internet connection?
>
> Do you have anyone using any kind of dial up to an external service of
some
> kind?
>
> Have people set up their own little Windows networking networks, in
addition
> to your network - file and print sharing stuff?
>
> Are people having to print a lot of things they weren't doing before?
>
> Story time:
>
> Back at the brokerage firm, there was an occasion where my help desk
started
> getting calls about the network being down. In general, this kind of
> complaint could be attributed to not being logged on to the network, and
> usually we would blow off the callers with the instruction to log on.
Well,
> upon thinking about the fact that people who were complaining were in many
> cases "good" users, and the fact that there were so many calls that
morning,
> I traced back one of the end user stations to a particular hub ( we had
hubs
> plugged into switches at the time ) and I was shocked to see the collision
> light solid red. I was able to use the HP stack manager software to
discover
> that a particular port was just saturating the hub with traffic. Tracking
> down that user, I learned that particular person was connected to a
> particular internet based service ( some kind of research database ) and
was
> downloading and updating a complex database file using a particular
> proprietary piece of software. The damn thing practically seized the
entire
> bandwidth of that hub, and so monopolized the traffic that other folks
were
> losing their connections to the Novell servers, I am guessing because of
> lack of keepalives.
>
> Once the problem was identified, I gave this particular user a dedicated
> switch port, and life was good after that.
>
> My point being that even though you have a very few users, all it takes is
> one bandwidth piggy, and your shared collision domain network is toast.
> Might want to convince the boss that investment in a Fluke meter or some
> kind of management software is a good thing.
>
> Chuck
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
John
> Brandis
> Sent: Tuesday, April 17, 2001 5:09 PM
> To: [EMAIL PROTECTED]
> Subject: Network Collisions [7:1006]
>
> G'day all where ever you may be.
>
> I have been watching my network here in my office and I have noticed that
> over
> the last week, that the network is slowing down. Due to financial
> constraints,
> we are using 10/100 16 port hubs (2) {just thought I would point that out}
I
> have noticed that the collision LED's are on a fair bit these days. I
> checked
> to see if the errors where due to cable problems or broken ports on the
hub,
> but this was not the case. I made sure all the PC's were using the same
> protocol and still I have an abnormal amount of collisions. I understand
> that
> I will have collisons but for a 11 user network that is centerd around a
> WIN2k
> Server/Exchange server I have about a 40% collision rate.
> Does any one have any idea's (besides the obvious of buying a switch) on
how
> I
> can troubleshoot this or fix the problem.......
>
> Thanks gang
>
> John Brandis
> Network Engineer
> GoWireless Communications
> 155 George Street Sydney
> +61 2 9251 5000
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=1022&t=1006
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
