|
Home > Archive > alt.certification.cisco > July 2003 > Switch
You are viewing an archived Text-only version of the thread.
To view this thread in it's original format and/or if you want to reply to
this thread please [click here]
|
|
| David Lee 2003-07-24, 7:24 am |
| Anyone know if a dodgy switch could cause physical damage to PCs and Servers
that are connected to it?
Originally we had a single server in our rack, it was connected back to a
switch in a seperate rack via a 5 metre patch cable. It run like this,
fault free, since January. Recently we installed 5 new servers into our
rack. I put a switch into the rack to cater for the new servers, uplinking
it with one of the other switches. It wasn't a new swtich but one that had
been lying about (boxed up though) in one of our other offices.
One of the new servers started experiencing PCI Parity Errors (according to
the logs) and the manufacturer came out and changed the motherboard. A week
ago the original server (that'd been running stable for 8 month prior to
this) needed a motherboard change after experiencing exactly the same
problems.
I then discovered that the switch had two completely dead ports on it so
this arose my suspicions about the general 'health' of the device. I've
moved everything to an other switch now just in case. But has anyone else
ever experienced this sort of problem with a switch or is this just
circumstantial!?
dave
| |
|
| This sounds like somethings I've run into on military field assignments. Is
a lightening strike a possiblity? That is usually what nails us.
Ceyko
"David Lee" <dave@anystuff.f9.co.uk> wrote in message
news:3f1fbf97$0$14553$afc38c87
@news.easynet.co.uk...
> Anyone know if a dodgy switch could cause physical damage to PCs and
Servers
> that are connected to it?
>
> Originally we had a single server in our rack, it was connected back to a
> switch in a seperate rack via a 5 metre patch cable. It run like this,
> fault free, since January. Recently we installed 5 new servers into our
> rack. I put a switch into the rack to cater for the new servers,
uplinking
> it with one of the other switches. It wasn't a new swtich but one that
had
> been lying about (boxed up though) in one of our other offices.
>
> One of the new servers started experiencing PCI Parity Errors (according
to
> the logs) and the manufacturer came out and changed the motherboard. A
week
> ago the original server (that'd been running stable for 8 month prior to
> this) needed a motherboard change after experiencing exactly the same
> problems.
>
> I then discovered that the switch had two completely dead ports on it so
> this arose my suspicions about the general 'health' of the device. I've
> moved everything to an other switch now just in case. But has anyone else
> ever experienced this sort of problem with a switch or is this just
> circumstantial!?
>
> dave
>
>
x-- 100 Proof News - http://www.100ProofNews.com
x-- 3,500+ Binary NewsGroups, and over 90,000 other groups
x-- Access to over 800 Gigs/Day - $8.95/Month
x-- UNLIMITED DOWNLOAD
| |
| The Oracle 2003-07-24, 2:24 pm |
| Dave,
Unlikely I would have said. Indeed, Ethernet only runs at +-0.75 volts so
it hasn't even got the power to damage anything - other than a ac mains
short from the power supply across pins 123 and 6 !!. It's quite easy to
damage the switch - by plugging in live ISDN RJ45 cables !! I have seen
this done a time or two. Another problem I have seen is when power over LAN
switches have been used to connect devices using STP cable that are not
expecting inline power. Pop goes the NIC card. However, you would have
told us had this been the case.
Just a few ideas. Ain't really help Dave. Post back if you get an answer?
Steve
"David Lee" <dave@anystuff.f9.co.uk> wrote in message
news:3f1fbf97$0$14553$afc38c87
@news.easynet.co.uk...
> Anyone know if a dodgy switch could cause physical damage to PCs and
Servers
> that are connected to it?
>
> Originally we had a single server in our rack, it was connected back to a
> switch in a seperate rack via a 5 metre patch cable. It run like this,
> fault free, since January. Recently we installed 5 new servers into our
> rack. I put a switch into the rack to cater for the new servers,
uplinking
> it with one of the other switches. It wasn't a new swtich but one that
had
> been lying about (boxed up though) in one of our other offices.
>
> One of the new servers started experiencing PCI Parity Errors (according
to
> the logs) and the manufacturer came out and changed the motherboard. A
week
> ago the original server (that'd been running stable for 8 month prior to
> this) needed a motherboard change after experiencing exactly the same
> problems.
>
> I then discovered that the switch had two completely dead ports on it so
> this arose my suspicions about the general 'health' of the device. I've
> moved everything to an other switch now just in case. But has anyone else
> ever experienced this sort of problem with a switch or is this just
> circumstantial!?
>
> dave
>
>
|
|
|
|
|