On 07/19/2012 06:31 AM, Lamar Owen wrote:
On Tuesday, July 17, 2012 12:28:00 PM Les Mikesell wrote:
But the thing with the spinning disks is the thing that will go down.
Not much reason for a network to break - at least since people stopped
using thin coax.
Just a few days ago I watched a facility's switched network go basically 'down'
due to a jabbering NIC. A power cycle of the workstation in question fixed the
issue. The network was a small one, using good midrange vendor 'C' switches.
All VLANs on all switches got flooded; the congestion was so bad that only one
out of every ten pings would get a reply, from any station to any other
station, except on the switches more than one switch away from the jabbering
workstation.
Jabbering, of course, being a technical term..... :-)
While managed switches with a dedicated management VLAN are good, when the
traffic in question overwhelms the control plane things get unmanaged really
quickly. COPP isn't available on these particular switches, unfortunately.
Just two weeks ago I had a similar issue with a broadband modem
repeatedly restarting itself - it flooded our network and all our VPNs
with "jabbering" (TM) and basically left us in an unworkable situation
until we got someone on site.
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