Yeah, I'm seriously looking at Canopy for backhaul. Kevin Summers KISTech Internet Services Inc. www.kistech.com
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Martin Moreno > Sent: Sunday, October 12, 2003 5:16 PM > To: [EMAIL PROTECTED] > Subject: RE: [smartBridges] Local traffic swamping with hub (MRTG) > > > I think what I am going to do tomorrow is keep this cisco 1900 in > the noc aND > PUT UP AN OLD HUB at the tower and set the abcjhaul to 10 meg > half duplex to > macth the rest of the SB stuff up there. Thats the nice part > about the Canopy > stuff! > > > Quoting Kevin Summers <[EMAIL PROTECTED]>: > > > > > Supposedly half. Don't bother plugging it into a hub > > with anything that is full duplex. You'll get nothing > > but collisions and lost packets. > > > > They are best plugged into a switch, and if you just > > happen to be able to program that port on the switch > > to run at 10Mbit half duplex then you should be ok. > > > > Otherwise most autosense switches detect it as 10Mbit > > Full duplex. It will work, but you'll have lost packets > > and throughput below what you would get on most 802.11b > > hardware. > > > > Kevin Summers > > KISTech Internet Services Inc. > > www.kistech.com > > > > > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] Behalf Of Scott Hoffman > > > Sent: Sunday, October 12, 2003 4:40 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: [smartBridges] Local traffic swamping with hub (MRTG) > > > > > > > > > So is AB full or Half duplex on the ethernet side....? > > > > > > Scott > > > > > > > > > ----- Original Message ----- > > > From: "Lars Gaarden" <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]> > > > Sent: Friday, October 10, 2003 7:51 PM > > > Subject: Re: [smartBridges] Local traffic swamping with hub (MRTG) > > > > > > > > > > Blazen Wireless wrote: > > > > > Waykand, > > > > > > > > > > Just my 2 cents your also going to see problems with a > cheap switch > > > unless > > > > > you can for sure get in and force it to 10 meg 1/2 duplex! the > > > Airbridges > > > > > don't play nice with switches that auto sense. I had to go > > > out and buy a > > > 12 > > > > > port Cisco router that I could log into and set to the correct > > setting > > > and > > > > > if you go back there are many threads of people seeing > problems with > > > packet > > > > > loss, slow throughput and many other problems all because an auto > > > sensing > > > > > D-link, Linkysys and many other cheap switches always sense > > > the AB as 10 > > > meg > > > > > FULL duplex. > > > > > > > > For whatever it is worth (2 cents?). > > > > > > > > It looks like any autoconfig ethernet device will config to 10Mbps > > > > full duplex > > > > if connected to an aP(P(O))/aB(O/T). > > > > > > > > In at least *some* configurations, this will give heavy > (5-20%) packet > > > > loss > > > > in the upstream direction. Error counters on the ether and wireless > > side > > > > does not show this packet loss (lost/overrun/failed/aged/etc > > > > counters). If the > > > > device connected to the radio is set to 10Mbps half duplex, > the problem > > > > disappears. Why? I have no idea. All I know is that I have to hard > > > > code the > > > > ethernet ports on my routers/firewalls (mainly rtl8139/a few intel > > > > 82558 eth > > > > chipset) to 10/hdx to avoid the problem. > > > > > > > > I asked my distributor to try to reproduce the problem in > the lab, but > > > > they > > > > didn't find any problems with 10/fdx. So this is kind of a > > > skeleton in the > > > > closet - some times 10/fdx works fine, some times it gives heavy > > > > packet loss. > > > > > > > > It could be a link layer problem - i.e., some ethernet chips don't > > > > work very > > > > well with the chip in the radios but only in fdx mode, it > could be an > > > > ethernet > > > > driver problem, it could be a timing problem with running the radio > > > > eth port > > > > fdx when the wireless side work load is too high (the dual core > > > atmel chip > > > > runs both the wireless and eth MACs). Pretty much > impossible to debug > > > > unless > > > > you have debug/devel versions of the radio fw and eth driver on > > > the other > > > > end of the cable and equipment to monitor the ethernet > phys/link level > > > > signals. > > > > > > > > -- > > > > LarsG > > > > > > > > ----------ANNOUNCEMENT---------- > > > > Don't forget to register for WISPCON IV > > > > http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > > > > > > > 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 > > > > > > > > > > ----------ANNOUNCEMENT---------- > > > Don't forget to register for WISPCON IV > > > http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > > > > > 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 > > > > ----------ANNOUNCEMENT---------- > > Don't forget to register for WISPCON IV > > http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > > > 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 > > > > > Martin Moreno > Blazen Wireless > 909-907-4106 > www.blazenwireless.com > ----------ANNOUNCEMENT---------- > Don't forget to register for WISPCON IV > http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > 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 ----------ANNOUNCEMENT---------- Don't forget to register for WISPCON IV http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm 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
