Not specifically. That's something I haven't seen a straight answer on how the options interact (Cisco), and haven't spent the time to research yet. Technically all the a/b/g rates are a modulation and coding scheme and have MCS bits, although the term (especially with "index" and the number scheme) often seems to only refer to the n+ standard options. In any case the main goal was to keep broadcast traffic and distant clients from using disproportionate airtime, which setting the base rate solved. I figured even if it's possible for a client to drop to the lower rates under n or ac for its private traffic, it's unlikely to do so if it's able to maintain an association at 24+ for the base stream and we could revisit if it became an issue.
On Mon, Jun 20, 2016 at 1:38 PM, McClintic, Thomas < thomas.mcclin...@uth.tmc.edu> wrote: > Your mention of QAM peaks my interest. Have you disabled lower MCS index > rates? I’ve often wondered if we disabled 18 and below but leave MCS 0-2 > enabled, can clients use that lower rate on HT and VHT? This is included in > both beacons and probe responses. > > > > To the original topic, we have b disabled for at least 2 years. No issues > or concerns. In fact, we only see about 5% of users on a/g. n is very > prevalent now. > > > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Jeremy Mooney > *Sent:* Monday, June 20, 2016 1:14 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] 802.11b data rates disabled? > > > > We've had b disabled for several years, and when we did a complete > wireless replacement last year dropped rates below 24Mbps to get everything > up to QAM. The only definite complaints I know about are the Wii users > everyone else has mentioned. Eliminating the rates would have effectively > shrunk cell size (indirectly the point - force a roam), but given the > entire system was replaced as well we've just been addressing them as > coverage issues (which we also knew existed before the swap) so can't > quantify that impact. > > > > On Mon, Jun 20, 2016 at 10:49 AM, Todd M. Hall <t...@msstate.edu> wrote: > > Do you have all of the 802.11b data rates disabled? If so, how long have > they been disabled? Did you have many complaints when you disabled them? > Were there any particular devices that could not connect as a result? > > I'm hoping this information will help us move towards disabling these old > rates. Thank you for your feedback. > > -- > Todd M. Hall > Sr. Network Analyst > Information Technology Services > Mississippi State University > t...@msstate.edu > 662-325-9311 (phone) > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/ > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.educause.edu_groups_&d=CwMFaQ&c=6vgNTiRn9_pqCD9hKx9JgXN1VapJQ8JVoF8oWH1AgfQ&r=rYfqH_8oTvcXxRxUI3x3m3Y7Nwgir7tnuoGbdZsrUM4&m=pFNLOeFJivl3-l55HMbqDILDs0fFoFn7jB0vg_vIO10&s=M1ayJHXjuGH0cIP6MdJP8oCYuLMEz_O_NchfEZhLR9U&e=> > . > > > > > > -- > > Jeremy Mooney > > ITS - Bethel University > > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/ > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.educause.edu_groups_&d=CwMFaQ&c=6vgNTiRn9_pqCD9hKx9JgXN1VapJQ8JVoF8oWH1AgfQ&r=rYfqH_8oTvcXxRxUI3x3m3Y7Nwgir7tnuoGbdZsrUM4&m=pFNLOeFJivl3-l55HMbqDILDs0fFoFn7jB0vg_vIO10&s=M1ayJHXjuGH0cIP6MdJP8oCYuLMEz_O_NchfEZhLR9U&e=>. > > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Jeremy Mooney ITS - Bethel University ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
