[unisog] Wireless in residence building - Tricky problem

Marc Jimenez mjimenez at net.tufts.edu
Thu Nov 6 20:53:56 GMT 2003


Hi John,
=09If your wired and wireless network are on the same VLAN, spanning
tree might be all you need to solve your problem, but you'll want to make
sure you set the priorities on ports to ensure that it is the downstream
copper connections which become blocking when loops occur. Otherwise you
stand the risk of either the port feeding the AP, the AP radio interface,
or the closet switch uplink blocking.
=09Given 802.1w or a vendor proprietary rapid spanning-tree
implementation, have spanning-tree turned on for client ports is not
nearly as painful as it used to be.

=09Best of luck,
=09-Marc


Marc Jimenez
Manager, Network Engineering and Security
Tufts University

On Thu, 6 Nov 2003, John P Callahan wrote:

>
> Speaking of tricky problems with wireless in residence buildings... is
> anyone else fighting the problem where Windows XP Home for laptop users
> decides to bridge between their WiFi and wired connections?
>
> We have engineered a workaround by limiting the number of MAC addresses
> the switches will learn for a given port, but it still causes problems.
>
> There isn't a DHCP option that says "this network is a large structured
> network, not a small home network" that would disable "features"
> like Internet connection sharing and bridging is there?
>
> Cheers!
> John
> --
> John P. Callahan <jcallaha at willamette.edu>
> Director, Network Services
> Willamette University
> 900 State St, Salem OR, 97301
> Phone: 503-375-5495 Fax: 503-375-5456
>
> On Thu, 6 Nov 2003, Ben Curran wrote:
>
> > On 5 Nov 2003 at 14:55, Valdis.Kletnieks at vt.edu wrote:
> > >
> > >                      |            *         |
> > >                      |           / \        |
> > >                      |          /   \       |
> > > ---------------------+--------[door]--------+------------------------=
----
> > >                               /       \
> > >                              /         \
> > >
> > >
> > > -----------------------------------------------------------------
> > >
> > > How do the two lines cross across the hall?
> >
> > Well, they must be stapled to the chicken!
> >
> >
> > -- =A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4=BB=A7=
=AB=A4=BB=A5
> > Network Specialist
> > Humboldt State University
> > Telecommunications & Network Services
> > Phone: 707.826.5000 fax: 707.826.6161
> > pgp key-- 2048/1024, 0x619015B2
> > ldap://keyserver.pgp.com
> > =A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4=BB=A7=AB=
=A4=BB=A5
> >
> >
>
>
>



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