Martin & Steve, We at one tower used a Netgear soho switch (our cisco there got fried) and saw that it could not keep up with the load (saw constant collisions on the switch itself). Would have appeared the same as yours. When we swapped it for a Cisco, the issue disappeared. I would think that it had something to do with the switches ability to buffer its queues better than the Netgear, thus avoiding the collisions. I just think with bridges and switched, the overhead noise overwhelms the switches. On the Cisco we were able to set-up (can't remember the real name) a VLAN type capability where the switch forwarded everything out to our NOC and did not rebroadcast it across the other ports (whether its Multi-cast or broadcast). I will talk to my switch configuration person to get the details, but I wonder if this is not what you are seeing.
Scott -----Original Message----- From: "Blazen Wireless" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Date: Wed, 19 Nov 2003 07:19:56 -0800 Subject: [smartBridges] Bringing up the latency issue again new findings.. > Okay as you all know I have been having latency issues when one or two > people get on pings go thru the roof 100-600ms.. > > We ran a test from my partners house on wireless. He faces are furthest > tower which gets its backhaul from our main tower 8 miles away. This > remote tower he faces has 3 clients on it right now and it has two > APPO's one for backhaul (in client bridge mode) and the other in Access > point mode. > > So we set up a constant ping to each radio in the chain all the way to > the main tower an noc. > > 1. Before starting the test we see <10 ms to main tower to the noc > about 30 -40 ( all cause the automatic 20ms+ latency the Motorola adds) > > 2. We start a bandwidth test and every radio we ping stays at <10ms all > the way to the main tower which is good!!! > > 3. Now here is where we see the problem we ping the radio at the tower > that serves as the backhaul ( Motorola client unit) the pings go way up > to over 500ms at times???? > > anyone have any ides? all three radios at the main tower are plugged > into a dlink 5 port switch that has been working great so I thought. I > have the Motorola unit forced at 10 meg 1/2 duplex. I tried setting it > to full and 100 and no difference? I think I have found where the > problem lies just not sure why? > > Any help would be appreciated as to what else I can try?? > > Here is a link to a rough pic of what I have set up > http://www.blazenwireless.com/system > > > > > Martin & Steve > Blazen Wireless > 909-326-5003 > www.blazenwireless.com The PART-15.ORG smartBridges Discussion List To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe smartBridges <yournickname> To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe smartBridges) Archives: http://archives.part-15.org
