Re: [foxboro] Mesh Root Switches Required?
- From: "Johnson, Alex P \(IPS\)" <alex.johnson@xxxxxxxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Wed, 23 May 2007 00:21:25 -0400
Architecturally, the are three valid configuration options:
1) Ring
2) Star
3) Tree
The last two have central (root) switches in order to work.
However, I think your question is really, "Do I need to use a N-style
(blade) switch as my root switch?" The answer to that is no you are not
required to use those higher end switches. You may use the lower cost
switches in the root position.
That said, there are advantages to the higher end switches. You should
read PSS 21H-7C3 B4, PSS 21H-7C3 B4, and B0700AZ.
Regards,
Alex Johnson
Invensys Systems, Inc.
10900 Equity Drive
Houston, TX 77041
713.329.8472 (voice)
713.329.1700 (fax)
713.329.1600 (switchboard)
alex.johnson@xxxxxxxxxxxxxxxx
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Kinsinger, Matthew R
Sent: Tuesday, May 22, 2007 3:58 PM
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] Mesh Root Switches Required?
Looking over all the DIFFERENT information out there, and talking to =3D
some Foxboro reps last week, we're still a bit confused. Is there a =3D
large difference between a Mesh setup with a dedicated Root pair with =3D
nothing but uplink ports vs. not having dedicated root switches and =3D
living with the few 1G uplink ports on the normal switches (edge =3D
switches)? We can easily get by without the need for the root switch 1G
=3D
ports, and because of the layout of our facility, it would cost us a =3D
significant amount of cabling for each edge pair to touch the roots, and
=3D
if we did NOT make each pair touch the roots, then the extra 1G uplink =3D
ports would serve us no purpose.=3D20
Just trying to get a handle on all this. Thanks.
Matt Kinsinger=3D20
PPG Barberton
=
=
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