[nsp] NM-DVB on Cisco Routers

[Greenhalgh, John]

Hi Mark,

Cisco bought a DVB IRD manufacture a few years back, but I don't think
anything came of it and as far as I know there are no DVB interface cards.
Usual practice is to use a third party DVB receiver. These are either Linux
boxes with DVB cards, or dedicated hardware boxes (often themselves based on
Linux). From the top of my head, brands include Broadlogic, Harmonic and
Ipricot. The latter tend to be more popular these days because they support
faster symbol rates. On our side (the operator teleport's side) we use third
party DVB encapsulators connected to routers via Ethernet (and usually with
a packet shaping device in between). 

Regards,
John
New Skies Satellites

-----Original Message-----
From: Mark Tinka [mailto:mtinka at africaonline.co.ug]
Sent: 22 August 2003 09:11
To: cisco-nsp at puck.nether.net
Subject: [nsp] NM-DVB on Cisco Routers


Hello all.

I was wondering whether Cisco support DVB network interfaces [coaxial 75-ohm
terminators] on their routers, and if so, wich ones?

The reason I ask is because in Africa, DVB has become a very popular method
to receive downlink services from US/European-based satellite teleports. The
DVB stream, which basically carries video and audio services for several
satellite TV service providers, also encapsulates IP packets along with the
multicast.

ISPs with dedicated DVB receivers [usually running some flavor is Linux],
tune into the downlink frequency, and use a pre-assigned PID to
differentiate the several multicast streams on the downlink frequency, and
use it to decapsulate the correct data streams. It has become very very
popular because of the amount of bandwidth expansion it offers [up to 45Mbps
on the DVB card], without the need to upgrade or purchase new hardware [such
as satellite modems e.t.c].

Do Cisco support DVB services on satellite downlink carriers?

Regards,

Mark Tinka - CCNP
Network Engineer, Africa Online Uganda 



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