This same issue drove us crazy for a while!
We first blamed it on Aruba ;-)
We still make the GRE tunnel go through our typing point but have
created an exception
that ignores IP addresses of APs.
Philippe Hanset
Univ. of TN
On Dec 4, 2009, at 12:14 PM, David Sinn wrote:
Yes, we ran into this exact issue. The problem is related to the
fact that some of the GRE traffic is fragments which Tippingpoint
has a (at least when we ran into it) undocumented rate-limit for all
fragments. Removing this limit solved our problems.
Thanks!
David
On Dec 2, 2009, at 2:56 PM, Firsdon, Michael wrote:
Hello all, we recently started deploying a few Aruba 125 access
points and series 6000 controller which runs 3.2.2.22 code on its
m3 modules. While doing some initial testing we encountered very
poor performance numbers (like 2-4mb) when running some of the
typical speed tests that are out there. After placing one of the
ap 125’s on a segment that was not being inspected by a tipping
point IPS unit the performance was more in the 60-80mbs range which
is consistent with what we see on our other campus which does not
have these units in place. We suspect the IPS unit is taking the
GRE tunneling traffic that the access point is trying to use to
communicate with its controller and going “deep” within it creating
the latency we are seeing. When I put the IPS unit in a layer 2
fallback mode the traffic when through flawlessly. My question is
has anyone seen this behavior before and if you have what did you
do in order to resolve the issue? Any help would be greatly
appreciated. We are currently working with tipping point support
on this issue as well.
Thanks!
Michael J. Firsdon
The University of Toledo
Network Engineer III / Team Lead
[email protected]
Office Phone: 419.530.3962
Office Fax: 419.530.3643
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