On Tue, 2 Dec 2008, Scottie Arnett wrote:
Some background, we are mainly a Canopy Wisp. I am feeding 3 towers
with backhauls from our main tower(NOC) that the backbone enters
into. I am using a PC 'tik' box as a main router at our NOC before
the traffic enters our upstream router, and using it to do several
different things including bandwidth shaping, traffic
prioritization, firewalls, etc... it is our only 'tik' at the
moment.
I am wanting to put some routerboards at each of the three other
tower locations to cut down on the garbage coming across the
backhauls and everywhere else on it's way back to the NOC. These
towers have anywhere between 30 - 60 customers on them. What I
would like to do at each tower is move some of the bandwidth
shaping, traffic prioritization, firewalls, etc... to each tower. I
doubt that each tower will ever have more than 120 customers, but
would like to plan for the future in case we add 900Mhz AP's.
Some questions are in order to clarify your design goals. Are your
3 towers currently routed? In other words, is tower 1 on a
different subnet than tower 2 and 3? If so, then the process will
be much simpler and more straightforward. If not, then there is
some work to be done in getting it set up that way. Based on your
goal of moving traffic shaping and prioritization over to this new
tower router configuration, I'd suggest the RB433AH routerboard.
This board is a 680MHz router with 3 ethernet ports and 3 minipci
slots (for your other "future" upgrade mentioned below). It's a
pretty inexpensive device at about $150 plus case (indoor is $23 and
outdoor $73). The RB493AH is the same CPU but has 9 Ethernet ports
and 3 minipci slots. RB493AH is $169 plus about $30 for an indoor
case. Outdoor case is gonna run about $70 plus, depending on the
configuration. Either of these boards will do what you want with
room to spare. FWIW, all ethernet ports on these are 10/100. If
you want/need gigE, then RB600 or RB1000 is needed.
Can you guys give me a routerboard suggestion to do this for the
towers. We are mostly Canopy 900 Mhz, so no more than 4 Mbps
aggregate can move through each of these towers at the moment, but
could go to 8 Mbps. I would like the ability to add some 2.4 or 5.7
cards to these later on for LOS customers, so please include
suggestions with the ability to add these cards later.
The RB400 series and RB600 have minipci slots that would facilitate
the radio cards. RB1000 does not. Hit me offlist if you're
interested in a firm quote on the parts or if you are in need of
assistance with the transition.
--
********************************************************************
* Butch Evans * Professional Network Consultation*
* http://www.butchevans.com/ * Network Engineering *
* http://www.wispa.org/ * WISPA Board Member *
* http://blog.butchevans.com/ * Wired or Wireless Networks *
********************************************************************
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