We are looking at using Ridesystems GPS app for our shuttle service. The riders will access the app while they are on the shuttle bus. Apparently there is an issue because they are riding along the edge of our wi-fi service out of our buildings where the phones pick up the wi-fi but not enough to get good service and their phones do not switch to the wireless provider so the app gets hung up. Has anybody else run into this issue with their shuttle service and, if so, how did you overcome it? Thanks.
Don Sullivan Network Administrator 205-726-2111 From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Jake Snyder Sent: Monday, July 25, 2016 12:28 PM To: [email protected] Subject: Re: [WIRELESS-LAN] How big are your wireless segments? One thing to remember is that over the air you have the same amount of broadcast whether it is one vlan or a pool of 4. For Example: If you have 4 client segments that are a /24, and each AP has a client on one of the 4 subnets, you still send the sum of 4x /24 network broadcast over the air. Meaning only on lightly loaded APs where you don't have all 4 subuets do you get a net gain of airtime. Same applies for link-local multicast. Smaller subnets in pools don't really gain you much without the suppression techniques, and with the suppression techniques, you don't need the smaller subnets. The place where pools/groups of vlans are attractive is where you may be using public IPs and don't have a large contiguous block of IPs in which to place clients. So picking 4 non-contiguous /24 networks is easier to do than picking a full class B. On Mon, Jul 25, 2016 at 11:04 AM, Tim Tyler <[email protected]<mailto:[email protected]>> wrote: Brian, We have pools of /22 /23/ and /24. We separate our pools from students vs fac/staff (still on the same ssid). It may be ok to do /16. I know that Aruba does a lot to prevent broadcast storms, but I feared the overhead of one large segment might have on it. We also give students a different ip pool depending whether they are in a residential building vs an academic/admin building. This allows us to shape traffic differently. But this will become less of an issue as we acquire more bandwidth (hopefully). I am curious of those using /16, does that resolve your layer 2 issues? Aruba does a good job of bridging many layer 2 solutions anyways, but having one /16 vlan does seem enticing and perhaps unnecessary for bridging protocols. However, I am curious about other overhead efficiency issues. Tim From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Brian Helman Sent: Monday, July 25, 2016 10:22 AM To: [email protected]<mailto:[email protected]> Subject: [WIRELESS-LAN] How big are your wireless segments? We are in the process of moving from a controllerless vendor to Aruba. Our current design is very segmented, to keep wireless device broadcasts from overwhelming the network and AP’s (we had this problem back in 11g days). Presently, we’ve limited segments to /23’s (give or take). In your controller-based environments, how large have you let these segments go? Is a /21, /20 … viable? -Brian ____________________________________ Brian Helman, M.Ed | Director, ITS/Networking Services | •: 978.542.7272<tel:978.542.7272> Salem State University, 352 Lafayette St., Salem Massachusetts 01970 GPS: 42.502129, -70.894779 ********** 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=GTxgfYI6i4KYikqC6GK_Jzn2mYGEh-v4HEPYCyQcJzU&r=gESFfxkz83JEIAAPJ78hwRDbYXa0egqYOhaeRMDNKZQ&m=rrFWoiQgGbCAPCbVzFnscNkzYEXfkagky9Cj-KnRAHQ&s=iZUB89d6nXL8aUsSKCpsHEt97HZaeWHXIbR1s1WOk7A&e=>. ********** 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=GTxgfYI6i4KYikqC6GK_Jzn2mYGEh-v4HEPYCyQcJzU&r=gESFfxkz83JEIAAPJ78hwRDbYXa0egqYOhaeRMDNKZQ&m=rrFWoiQgGbCAPCbVzFnscNkzYEXfkagky9Cj-KnRAHQ&s=iZUB89d6nXL8aUsSKCpsHEt97HZaeWHXIbR1s1WOk7A&e=>. ********** 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=GTxgfYI6i4KYikqC6GK_Jzn2mYGEh-v4HEPYCyQcJzU&r=gESFfxkz83JEIAAPJ78hwRDbYXa0egqYOhaeRMDNKZQ&m=rrFWoiQgGbCAPCbVzFnscNkzYEXfkagky9Cj-KnRAHQ&s=iZUB89d6nXL8aUsSKCpsHEt97HZaeWHXIbR1s1WOk7A&e=>. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
