The mGig consideration is a switching one for sure, because switches you buy today will likely see another evolution of wifi AP at some point.
For the 3800 as an AP. It takes just more than 100 MHz of spectrum to break the 1Gbps barrier. For most of us, that just isn't practical in most modern density deployments. Sure you can do it in a lab setting, I've done it myself. But I haven't seen a production environment that could necessitate more than 1Gbps to the AP today. The real question is the module. Especially with AP extensions (APEx) being published on devnet. The DC power connector and enhanced cellular coexistence are reasons to look at 3800 IMHO. For new construction, run the extra cable. The cost of the cable pull is dramatically smaller during construction. Maybe you use it for a digital projector, IP clock, IP speaker, or something we haven't dreamed up yet. I've never had someone say "I wish I had pulled fewer cables." As far as lag on 2800. Supposedly you have to load-balance on src-dst-port otherwise you don't get above 1Gbps. Plus the config is a PITA unless you have a switch that supports the auto-lag feature. I worry that you are getting into additional operational overhead when you won't be above 1Gbps anyway. Sent from my iPhone > On Jul 8, 2017, at 9:54 PM, Jeffrey D. Sessler <[email protected]> > wrote: > > On the 3800-series decision point (and multi-gig): > > New construction – Don’t need to run a 2nd Ethernet cable to the WAP (spend > that money to uplift to the 3800). You also won’t need a 2nd Ethernet port, > and a single multi-gig port is less than the cost of two 1Gb ports. > New WAPs with new Switches – this is also common given the push for UPoE. > Again, like new construction, if you think running a 2nd Ethernet is within > the life-cycle of these switches e.g. 7-10 years, go multi-gig and the 3800’s. > > Last but not least. If you use Cisco switches, there are some wonderful > bundle deals with Cisco WAPs and switches that make it hard not to go > 3800/multi-gig. > > Jeff > > > From: "[email protected]" > <[email protected]> on behalf of Charles Francis > <[email protected]> > Reply-To: "[email protected]" > <[email protected]> > Date: Saturday, July 8, 2017 at 1:37 PM > To: "[email protected]" <[email protected]> > Subject: Re: [WIRELESS-LAN] [EXTERNAL] Re: [WIRELESS-LAN] Cisco 3800 Series > APs > > Hi Bryan, > A few notes from our experience and our deployments recently. > > 8.2MR5 is a necessity if you are running X800 series AP’s. We had a slew of > issues with 1810, 2800, 3800 AP’s when they first came out, but they are > pretty solid now. > > We ended up going with 1810’s in our dorm’s to provide higher density, but > also provide wired ports. The 1810’s are AC wave2, no CleanAir and only 2x2 > but at the price point, it was worthwhile to get the coverage. We also > started to put them into smaller team and study rooms. > > We weighed the 3800 and 2800 and settled on 2802i’s as our standard going > forward. Although they didn’t support mGig, we can use both ports and push > 2gig if needed. We do have a few 3800’s deployed but no mGig switches at > this. From what we can see, we are bursting to around 200mb today at the > switchport and that’s in dense areas. The 3800’s seemed interesting, but the > only difference we could see was the mGig. > > We peaked out around 80 clients on a 3800 in the library during finals with > no reported performance issues. > > > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > <[email protected]> on behalf of Bryan Ward > <[email protected]> > Reply-To: The EDUCAUSE Wireless Issues Constituent Group Listserv > <[email protected]> > Date: Friday, July 7, 2017 at 8:45 AM > To: "[email protected]" <[email protected]> > Subject: [EXTERNAL] Re: [WIRELESS-LAN] Cisco 3800 Series APs > > *** Exercise caution. This is an EXTERNAL email. DO NOT open attachments or > click links from unknown senders or unexpected email. *** > Thanks everyone for the good quick feedback. > I think we’ll be making the switch to the 3800s – most likely the 3802E model > as our existing APs are mainly wall-mounted. The E model has the > advantage(?) over the I model in that only the I model supports macro/micro > cell, which seems to be the cause of FRA issues in non-dense deployments. We > certainly don’t have very many dense deployments. > > The 2800s also do sound like they could work for us, however our eventual > goal is to support mGig on our APs. We have the wiring for it already. > There’s also been some renewed talk about adding cellular radio modules (but > I don’t want to get into that discussion here). > > The issues mentioned all seem to have known workarounds or have been fixed in > newer code, and a most of you reported having success with these than not. > We’ll advise our helpdesk to ensure that people with WiFi connectivity issues > following the upgrade are running the latest drivers on their device. AC has > been around long enough now that I feel the manufacturers of client devices > should have their drivers fixed. > > > One further question – how many connected clients are your 3800s able to > serve before having performance issues? > > Thanks again, > > -- > Bryan Ward > Network Engineer > Dartmouth College Network Services > 603-646-2245 > [email protected] > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[email protected]] On Behalf Of Bryan Ward > Sent: Wednesday, July 5, 2017 12:07 PM > To: [email protected] > Subject: [WIRELESS-LAN] Cisco 3800 Series APs > > This sender failed our fraud detection checks and may not be who they appear > to be. Learn about spoofing > Feedback > Couldn’t find a recent discussion on the list archives, so I’ll ask my > question. > > For those of you that have Cisco 3800 series APs in production, how have they > been working for you recently? > We currently purchase 3700 series APs as our standard for new installs and > replacement of our 3500 series APs, but are now considering switching to the > 3800 series. > I heard there were a lot of issues with them at first, but was wondering if > they’re still troublesome now that they’ve been out in the wild for some time. > Also, does anyone currently have issues using Prime to manage them? > > Thanks all, > > -- > Bryan Ward > Network Engineer > Dartmouth College Network Services > 603-646-2245 > [email protected] > > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/discuss. > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/discuss. > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/discuss. > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
