We are running a 10 minute lease on our 2 /21's with no issues that I know of.
Generates a lot of logs though. I wouldn't want to go much shorter.
-Neil
--
Neil Johnson
Network Engineer
Information Technology Services
The University of Iowa
Work: 319 384-0938
Mobile: 319 540-2081
Fax: 319
Sounds like a great use case for ip mobility... what are you running for
wireless controllers?
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:wireless-...@listserv.educause.edu] On Behalf Of Garrett Harmon
Sent: Wednesday, September 30, 2009 11:09 AM
To:
Garret,
Wireless networks tend to be used in bursts. Most of the time they are
underutilized. However, we try to build them for worst case scenario
situation. Sounds to me like adding another /24 might be your best bet.
Also might depend on how users connect. Can anyone come in and
We're actually running mobile IP on our Aruba controllersand love
itbut that doesn't really affect the iphone users that connect and
update facebook then walk somewhere without coverage essentially
trahsing that IP for another 29 minutes. In our most populated stack
we have 10
: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:wireless-...@listserv.educause.edu] On Behalf Of Jason Appah
Sent: 30 September 2009 19:15
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] wireless DHCP lease time
Sounds like a great use case for ip mobility... what
We had similar issues, and have found a happy middle with 40 min max lease time
with our controllers (Aruba) having a user timeout of 38 min.
Ken Connell
Intermediate Network Engineer
Computer Communication Services
Ryerson University
350 Victoria St
RM AB50
Toronto, Ont
M5B 2K3
416-979-5000
Garrett Harmon wrote:
We're running into some issues at the ramp up of a quarter with our DHCP
lease time attempting to utilize the /24's we currently pool for our
main essid. We moved from 1hr. to 30 minutes, but are still running out
of leases occasionally. For instance, we have 160 users in
We run 30 minute leases for most of SSIDs, no problems. We saw an
unexpected boost in wireless usage this semester though, and had to go
from /22 networks to /20 to accommodate the new users and leave room for
expansion.
Heath
Garrett Harmon wrote:
We're running into some issues at the ramp
Subject: Re: [WIRELESS-LAN] wireless DHCP lease time
We run 30 minute leases for most of SSIDs, no problems. We saw an
unexpected boost in wireless usage this semester though, and had to go
from /22 networks to /20 to accommodate the new users and leave room for
expansion.
Heath
Garrett
We run 4 /23's (one per class) with 4 day lease
times. It's very tight right now for freshmen and sophomore's but lots
of room for juniors and seniors. Each class is about 350-450
students. I'm looking to add another /23 per class to provide some
head room. We run 4 day lease times for the
What a timely discussion!
This morning we noticed that our pools (Aruba VLAN pools, 32* /24)
were being filled from 70 to 90%.
Our lease time is 3 hours. As most of you, we have been hammered by
Iphone/Ipod-touch (~4000 registered at the moment)
For a campus population of 30,000 (25,000
Philippe,
We saw improvement moving from 1 hour to 30 minutes with no foreseen
adverse affects. We are testing a few subnets on 15 minute leases, as
it would be more practical to avoid any waste of leases for the 5
minute email/facebook check on an iPhone/iPod-Touch. I'll let you know
if
@LISTSERV.EDUCAUSE.EDU
Sent: Wednesday, September 30, 2009 4:43:30 PM GMT -05:00 US/Canada Eastern
Subject: Re: [WIRELESS-LAN] wireless DHCP lease time
Philippe,
We saw improvement moving from 1 hour to 30 minutes with no foreseen adverse
affects. We are testing a few subnets on 15 minute leases
Not sure if this is the case for anyone, but one of the issues we
ran into with lease shortages was related to maybe on oversight on our
part. The ISC dhcp has a max-lease-time and a default-lease-time
value. While wireless was set to hand out 30-minute leases (default-
lease-time),
We have quite a few wireless networks set to 15 minutes
with no adverse affects.
Dale
On Sep 30, 2009, at 3:43 PM, Ryan Holland wrote:
Philippe,
We saw improvement moving from 1 hour to 30 minutes with no foreseen
adverse affects. We are testing a few subnets on 15 minute leases,
as it
15 matches
Mail list logo
