[SBE] Questions about IP multicasting

[Yengst, Curt]

There's a router at the transmit end, and a router and the receive end, but
I have no idea how many routers all this traffic is passing through to get
there.

I'll have to give Wireshark a try.


*Curt Yengst, CSRE*

Engineer

732-770-3054




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On Fri, Dec 22, 2017 at 5:30 PM, Stu casteel <stu at pacific.net> wrote:

> How many routers/switches in the path?
>
>
>
> Can you “see” the IP traffic? Use Wireshark with an open Netmask and a
> public address and “capture all” and see if the packets are there
>
>
>
> Stu
>
> +1.707.972.0953
>
> *From:* SBE [mailto:sbe-bounces at sbe.org] *On Behalf Of *Yengst, Curt
> *Sent:* Friday, December 22, 2017 2:24 PM
> *To:* sbe member discussion mail list <sbe at sbe.org>
> *Subject:* Re: [SBE] Questions about IP multicasting
>
>
>
> That's just it.  I don't really know the correct answer to any of these
> except that I'm pretty sure the multicast address is in the correct range.
> 239.192.1.XXX.
>
>
>
> The routers we have might not be up to the task since I can't seem to find
> anything in their interfaces for the join/leave requests you mentioned.
>
>
>
>
> *Curt Yengst, CSRE*
>
> Engineer
>
> 732-770-3054
>
>
>
> [image: Image removed by sender.]
>
> Star 99.1 Mission: To love, honor, and serve God, our listeners,
> supporters and staff. (Luke 10:27)
> Star 99.1 / WAWZ(a service of Pillar of Fire, a not-for-profit,
> listener-supported 501-c-3 organization) has been serving families in the
> NJ/NY/PA area for over 80 years.
>
>
>
> On Fri, Dec 22, 2017 at 5:15 PM, Stu casteel <stu at pacific.net> wrote:
>
> Hi Curt,
>
>
>
> Just a few that have got me in the past
>
>
>
> IGMPv2 or IGMPv3?
>
>
>
> Is the Multicast broadcast in the proper addressing range - are the
> routers configured to pass join/leave requests?  TTL value high enough to
> “make it there?”
>
>
>
> Stu
>
> +1.707.972.0953
>
> *From:* SBE [mailto:sbe-bounces at sbe.org] *On Behalf Of *Yengst, Curt
> *Sent:* Friday, December 22, 2017 2:04 PM
> *To:* sbe member discussion mail list <sbe at sbe.org>
> *Subject:* [SBE] Questions about IP multicasting
>
>
>
> Working for a small independent TV station that is trying to set up an STL
> using TSoIP.  The catch is, they need to feed two separate devices at their
> tower site with the same TSoIP stream.  The short answer we got from the
> manufacturer of the ASI-to-TSoIP converter is to configure for IP multicast.
>
>
>
> I did a rudimentary test with an ASI-to-TSoIP converter going to an
> ethernet switch and feeding a stream to a corresponding TSoIP-to-ASI
> converter and to a Sencore decoder with a TSoIP receiver card.  Naturally,
> that worked because all equipment was connected to the same physical
> switch.  But, now that I've moved the "receive" end to the transmitter
> site, I'm having a heap of trouble getting it to work.
>
>
>
> Searching the web for all things multicast, I'm finding that this is
> easier said than done.  Has anyone out there in TV Land had any luck with
> what I'm trying to do?
>
>
> *Curt Yengst, CSRE*
>
> Engineer
>
> 732-770-3054
>
>
>
> *Error! Filename not specified.*
>
> Star 99.1 Mission: To love, honor, and serve God, our listeners,
> supporters and staff. (Luke 10:27)
> Star 99.1 / WAWZ(a service of Pillar of Fire, a not-for-profit,
> listener-supported 501-c-3 organization) has been serving families in the
> NJ/NY/PA area for over 80 years.
>
>
>
> *Error! Filename not specified.*
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