We are using SDM-300 Sat modems with a UB-530 interface board. This has an
EI-530 interface which can be wired to V.35 standards. We have our core
routers at the SES (only < .5 mtr away) and using Ethernet take it to the
distribution/access network where one is 500mtrs and another is 2km. We
keep the internet traffic on a separate VLAN to distribute it. This way you
need not have to run it into a Mux or converter... Saves you money.
Our link is presently configured to work at 3M down and 1M up. I know that
V.35 can go up to 5Mbps after that we will shift to HSSI or Ethernet
interface on the sat modems.
-----Original Message-----
From: pacnog-bounces@pacnog.org [mailto:pacnog-bounces@pacnog.org] On
Behalf Of Philip Smith
Sent: Thursday, 18 May 2006 2:52 a.m.
To: Mr. Siumafua Moala
Cc: PacNOG
Subject: Re: [pacnog] Router & Sattelite modem connection
Hi,
Mr. Siumafua Moala said the following on 17/5/06 12:52:
We just finish upgrading one of our internet link and have to move our
router to the earth station so that we can
connect it to the sat. modem v.35 port. Before the modem was connected
via coax to a DXC (convert from coax to v.35) and then to the router in
our computer room.
The problem with the DXC is that its limited to 2mbps link.
I am wondering how we can extend our connection so that we can move our
router back to our computer room for easier maintenance, etc.
Short of upgrading your DXC to support speeds above 2Mbps, the only
other options would be to have a small router used as "media" convertor
at the earth-station (V.35 one side, ethernet the other), connecting to
your main router back at the office by ethernet (up to 100 metres) or by
fibre. What speed are you trying to support?
Or get some device that will extend >2Mbps circuit over fibre... I
started browsing through RAD's website, and maybe something like
http://www.rad-direct.com/Application-t3-extender-fiber.htm could work.
This particular one won't as it only supports T3s.
Sorry, I don't have much idea otherwise... :-( Upgrading the DXC seems
easiest if you can't leave the router at the earth-station.
philip
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