I wanted to correct one respondents in that you can Trunk over 802.11b wireless bridges, as well as a cisco access point and a workgroup bridge. The latest firmware 11.10T for cisco access points do have some form of prioritizing traffic. You can forward or discard packets based on Ethertype, IP Protocol, IP Port Protocol Filters. If you use Spectralink Wireless Phones there is a predefined filter on the cisco access point SVP (Spectralink Voice Priority) that will give priority to voice on the access point over other traffic types. You would also need there SVP Server which is used to provide QoS along with a Access Point that uses SVP filtering. ----- Original Message ----- From: "Priscilla Oppenheimer" To: Sent: Wednesday, May 29, 2002 12:32 PM Subject: Re: voice and 802.11b [7:45342]
> Yup, I was going to say the same thing about lack of QoS, etc. Really I > was. ;-) > > I would add that delay is non deterministic with 802.11b. It's carrier > sense multiple access. Although it's also collision avoidance (CSMA/CA), > collisions do happen nonetheless. > > Voice prefers short and non-variable delay. But it would probably work > anyway. The good news is that you're only planning to have two devices > share the medium (air), if you plan to just use wireless between the two > bridges. So, the delay is somewhat less variable than it would be if you > were running voice with multiple devices accessing an Access Point. > > Priscilla > > At 06:14 AM 5/29/02, Steven A. Ridder wrote: > >You can, but there haven't been any serious QOS techniques released yet in > >the AiroNet series products yet. The other problem is that the media isn't > >switched, so it's basically a hub in the sky. > > > >It's a rumor/myth that voice dose't work in 802.11b. There's actucally a > >wireless 802.11b IP phone out there by Symbol. Anything that works in > >ethernet will work in 802.11b (except for trunking). > > > >-- > > > >RFC 1149 Compliant. > > > > > > > >""Khurrum Shahzad"" wrote in message > >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Can we use voice through Wireless Ethernet Bridge (like cisco Aironet )? > >Is > > > is possible to use voice if two cisco router having voice module and > >FXO/FXS > > > are placed on two location connected through wireless bridge? I read that > > > 802.11b has a drawback of lack of interoperability with voice devies. > > > > > > regards > > > > > > -- > > > _______________________________________________ > > > Sign-up for your own FREE Personalized E-mail at Mail.com > > > http://www.mail.com/?sr=signup > ________________________ > > Priscilla Oppenheimer > http://www.priscilla.com &i=45372&t=45342 > -------------------------------------------------- > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=45410&t=45410 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
