In the last episode (Dec 14), Scott Robbins said: > On Sat, Dec 14, 2002 at 04:15:34PM +1030, Greg 'groggy' Lehey wrote: > > On Friday, 13 December 2002 at 23:05:57 -0500, Scott Robbins wrote: > > > ... is that if one moves a computer from one location to another, > > > the switch seems to take its time flushing its tables and the box > > > won't immediately be able to get an address. It's only happened > > > once or twice with a VERY cheap Linksys (again, the switch is > > > probably 1-2 years old, and this problem might be fixed by now). > > > > This is probably a feature, not a bug. It's part of the spanning > > tree algorithm used to detect and avoid link-level routing loops. > > My expensive Cisco switch has the same feature, but I found > > somebody with enough Cisco-foo to turn it off. Check the > > documentation of your switch. > > Thank you, I'm glad you told me that. We're going to be moving some > machines around after the new year, and had thought that with the > higher priced switches we've been getting, that wouldn't be an issue.
Remember that all these low-priced switches are unmanaged, which means that they come with a basic feature set that cannot be changed (you can't lock a port at a particular speed, enable/disable spanning-tree, etc). Part of the price of those expensive switches is their ability to be configured. Some Cisco switches can take up to 60 seconds to forward packets in a newly-activated port, because of all the features available on high-end hardware that has to be tested for. You can drop the activation time down to 2-6 seconds by telling the switch that a plain PC is on the other end. http://www.cisco.com/warp/public/473/12.html -- Dan Nelson [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
