[SBE] Some IP Network questions

[Stu Casteel]

Bo nailed the CDN / distribution question

my .02 on Q3

Network stumbler and "win pc cap" with wireshark will give you more
information than may be legal to capture - go figure


>

> For both the video and audio folks, questions.

>

> 1.  A friend, who is usually knowledgeable, made the statement that CNN

> generates many IP streams, reliably, for public consumption and that my

> concerns about network infrastructure  (Physical and Layers 1,2 and maybe

> 3) are overblown.  He claims that the technology has come so far that as

> long as you buy Cisco, HP, Juniper and focus on proper configuration

> (Layers 4-7), you can reliably do what you want.  He claims that network

> issues rarely are at the lower levels and mostly now occur as a function

> of poor config and management, not poor infrastructure.    My comment to

> him was that how you handle IP / IPTV for post-production streams is a

> completely different animal than how you handle IP connectivity concerns

> inside the plant related to bi-directional workflow for production.   I

> would tend to think that the integrity of the lower levels matters more

> for production than for distribution.

>

>  So I am curious, what is CNN doing and how does their use of IP

> technology, complexity and network reliability concerns differ between

> production and distribution?  Is CNN (as my Cisco buddy claims) more

> concerned now with distribution rather than production because so much

> production now is ingested from citizen journalism?  I don't believe that

> the brick and mortar concerns of TV plants have really dimished that far,

> yet.

>

> 2.  Anyone tried use of 802.1(Qav et al) enabled switches yet in AOIP or

> IPTV plants.  Such switches do exist already.  Are there broadcast

> production devices encorporating these standards?  Anyone have experience

> at how well these switches handle L3 QoS for packets not bearing AVB?

>

> 3.  Anyone using a wireless packet sniffer?  If so, what, besides Fluke,

> are folks using?

>

> Thanks

>

>

>

> Edwin Bukont CSRE, DRB, CBNT

> E2 Technical Services LLC

> Tech-Knowledgy for Signal Integrity

> Nashville, Baltimore, Whereever

> V- 240.417.2475; F- 240.368.1265

>

>

>

>

>

>

>

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