Multicasting Surveillance Tutorial

By: IPVM Team, Published on Jan 04, 2018

Network bandwidth can be a concern for some surveillance systems. While improvements in video codecs, such as smart codecs for H.264 and H.265, have reduced bandwidth needs significantly, large systems still encounter issues with large amounts of video data and viewers. In this note, we look at the basics of multicast networks, a frequently-mentioned means of reducing bandwidth, where they will save bandwidth and where they will not.

Inside we explain:

  • The Basics of Multicast
  • Use in Surveillance
  • Unicast / Mulitcast Combinations
  • Network Support
  • VMS Suppport
  • Quiz Yourself: 5 Question Quiz to measure knowledge of Multicast for Surveillance

This is one of many tutorials on networking for surveillance. Others include: Wireless Networking for Video SurveillanceNetwork Addressing for Video SurveillanceBandwidth Guide for Video Surveillance, Remote Network Access for Video SurveillanceNetwork Monitoring / SNMP for Video Surveillance, and more.

******* ********* *** ** a ******* *** **** surveillance *******. ***** ************ in ***** ******, **** as ***** ****** *** *.*** *** *.***, **** ******* ********* needs *************, ***** ******* still ********* ****** **** large ******* ** ***** data *** *******. ** this ****, ** **** at *** ****** ** ********* ********, * **********-********* ***** of ******** *********, ***** they **** **** ********* and ***** **** **** not.

****** ** *******:

  • *** ****** ** *********
  • *** ** ************
  • ******* / ********* ************
  • ******* *******
  • *** ********
  • Quiz ********: 5 Question Quiz to measure knowledge of Multicast for Surveillance

**** ** *** ** many ********* ** ********** for ************. ****** *******: ******** ********** *** ***** Surveillance******* ********** *** ***** Surveillance********* ***** *** ***** Surveillance,****** ******* ****** *** ***** Surveillance******* ********** / **** for ***** ************, *** ****.

[***************]

The ******

** ***** ** ********** multicast's *** ** ************ applications, ***** ****** ********** the ******. ** **** typical ******* ************, ******* transmission ** ****. ** this ******, *** ****** device, **** ** ** IP ******, ********* ** many ****** ** *** video **** ** *** requested ** ************. *** main ******** ** **** is ************. ** *** camera ** *** ** a * **** ****** size, *** *******, **** clients ********** ***** **** utilize * **** ** bandwidth. **** ***** *********** unicast ************ **** *** sender (***) ** ***** recipients (*****):

Unicast Transmission

** ********* ************, *******, there ** ** ****** connection ******* *** ****** and ***********(*). ************, **** as ************ *******, *** joined ** * ********* group, ***** ******** * single **** ** *** video ****** ***** ** replicated ** **** ******. So **** ******* ********** a * **** ****** will **** *** * Mbps ** *********, ******* of *** * **** used ** * ******* network. *** ********* ***** illustrates ********* ************ **** the ****** (***) ** three ********** (*****):

Multicast Transmission

Use ** ************

********* ** ***** ***** as * ****-**** ********** in *** ************ ******. This ** ****** *** the ****. ** ******* with * ******* ****** of ************, **** ** one ********* ****** *** one ** *** ******* clients, ********* **** **** little *********. ****, ** will *********** **** *** bandwidth ** * ******, but ** **** ***** this ** **********, ** the ******* ** ****** a ********** ** ******* systems. ** ***** ***** recording *** ******* *** separate *******, *** ** the ******, *** ** the ******, ** ********* will ** *****, ** each ****** ** **** being **** ** *** destination.

*******, ** ****** ***********, where * ****** ****** of ******* *** ****** by * ***** ****** of *******, ********* *** be ********. ** ********* or ********* ******* *******, for *******, **** * dozen ******* *** ** connected **/*, **** ********** occasional *****. ****** ***** may ***** ****** ******** events, ** ****. 

Unicast/Multicast ************

** **** *****, *** systems *** ** ******* of ****** ** * unicast ****** *** **-********* it ** ********* ** clients. **** *** ** useful **** ***** ******* connected *** ***** **** don't ******* *********, **** as **** ******** ***** or *** ***********. ** this ****, *** *** server ***** * ****** connection ** *** ****** and ***** *** ****** out ** ********* ** a ******, ******** *********. In ***** *****, **** as * ****** ********** through * *** ***** does *** ******* *********, the *** *** ******** video **** ********* ******* as * ******* ******. These ******** *** ********* limited ** **********-***** ****, however.

Network *******

********* ** ********* *** ********** ** ***** D, **** ** ******* range ** ***.*.*.* ** 239.255.255.255.  *** ********* ***** illustrates ********* ************* ** an ** ****** ****** ****** capabilities *** ************* ******* may **** ** ************.

Multicast Configuration on IP Camera

********* ******** ******* **** all ********** ******* **** (Internet ***** ********** ********), which ******* *** ******* and ******* ** ********* groups. **** ** ********* by ****, ** *** all ******* ******** *****. The ***** ***** ***** a ***** ****** *** the ******** ** ***** Multicast *** **** *** and ******* *****

Multicast Configuration on Managed Switch

*** ******** ** ****** manufacturers ******* ********* *********, as ****. *** ******* is *******, *******, ** shown *****.

********* ******** ** *** complexity ** ************ *** troubleshooting. ******* ******** *** be ****** ******** ** those **** ***** ******* experience, ** *** **** concerns *** *** ****** and *********** *********. **** technicians **** ** ****** IP ********** ******* *** client ********. **** *****, performed ** *** ******, is ****** ****** *** scope ** **** ***-***** techs' ********, *******. *************** ** also ** ****** ** simple ** ******** * single ****** ******* *** destination *******, *** ** the ******** ** ********* groups, ***** *** ********* separately. ******* **** **** the ****** ** "****** parts" ******** (*******, *******, servers, *** ********), *** with ***** *** ********* implementation *** ********* ******, and ********* ** **** left ** *********** ** techs.

VMS *******

**** ***** ****** ************* now ******* ********* *********, ******* some ** *** ***** VMS ********* ** ***. * quick ***** ** *** players ***** *** ********* multicast ******* **** ****:

**** *****, ***** ********* is ******* ** ****** and *** ****** ** a ****** ** ********** components, ** ******** ****** checking ******** ********* ********** on *** **** *** easy ** ** ** deploy ********* **** **** preferred ***.

Test **** *********

***** **** ** **** * * question ****

Comments (64)

*** ****** **** ******** doesn't ******* ********* *** there ** ******** ** enable ********* ** *** cameras. **** ****** ********* recording ** ******** *******.

 

"VMS *******

** *********, *** ***** manufacturer ******** *********.**** ***** ****** ************* now ******* ********* *********, ******* **** ** the ***** *** ********* do ***."

**** ** ***** **** than **** ** *** OP.

** ******** ******** ************ on *** ****** ** server **** **** *** want ** ****** ** multiple *******. **** *** not ******* ************ ** the ******* *** ************ is ********* ** *** recording ****.

 

"**** *** *** ******* multicasting ** *** ******* but ************ ** ********* on *** ********* ****."

****?

***... ************ ** * solution ******** **** *** same ***** ******* *** being ********* ** ******** clients **************.

*** ******* ** ****** duplicate ******* ** *** different ********* ** * redundancy ********, *** * 'delivering ******** ************ ****** requests *** *****' ********... 

** ** *** **** multiple ******* ********* ******* from *** **** ******* how ** **** ********* then ******** ******* ********** ********* from *** **** ******?  Clients **** ****** **** people *** ******* ** the ****** *** ** the ******* *** ********* to ******** ******* ************ **** ****** would ** ******* ******** streams **/* 

*******:

*** **** * ******* setup ** ************** ****** *** same *******.  ** **** stream ** ***** *** you're ***** ******* **** would ** * ***** of ****** **** *** camera ** *** ****** correct?   ** *** ***** multicast **** *** ***** only *** ***** **** the ****** *****?   

* ***** **** *** in **** ********** **** the ******* ** ************** record *** **** ****** stream ** ******** ********* might ** * **** thing.... *** ***** *** other **** ** **** same **** **** *** do ****.

*** **** ****** ** a ******** ** *** benefits (*** **** *******) for ********* ********* ** surveillance ************.

********* ********* ***** ******* a ********* *********** (********* level * ******** ** accommodate *** ******** **********) - *** ************, ** least ** ******* ** how *** ** ** trying ** ******* ******* in *** ****** *** cases - ** * 'multiple ************ ****** *******' solution.

******... ** **** ******** support ** *** ******* Multicasting? 

********* ********* **** ******** a ******** ******** **** supports ************ (***** * switches) ** **** ** not ************ *** ** - **'* ********* **** that ***** *** ******** configuration ** ****.... ** least ****'* ** **** on **.

*'* **** ** **** what ****** ********** ****'* have ** *** ** this *******.

** ************* ** ************ is ** ** * one ** **** ************.  It ***** *** **** way ** *** **** clients ********* *** ****** or ******** ********* ********* *** ******.  So * ** *** sure * ***** **** *** that ********* ********* ***** are ********* * ****** ********* transition **** * ****** would *** ** ********** ************.  

** ************* ** ************ is ** ** * one ** **** ************.

**** *** ** **** understanding *** *** ************ application ** ************ (**** from ** ***** ***) was ********* *** ****** ******* (IPTV, ***** ************, ***.). Ergo, **** **** **** about ************ *** *********** is **** ******* *** use ************. **** *********** everyone **** *** ******** talks ***** ********** ************, they **** ** ******* so, ** *** **** least, ******** ***** ** be ******* ********* **** a ********* *********** ***** from *** ******* *** case ****** *** **********.

* ** ********** **** **** Avigilon being ** * ********* category *** **** ***** sence. *** ** *** they ***'* ******* ************ at *** ** *** true.  

** ******* - ** you've **** ********** ***** multicast **** ******** *** cameras, ****** ********** **** letting ** **** ** this *** ************** *** ***** **** 8MP **** ******; **** Multicast ***** *** *******?

** *** **** *** multiple ******** *** ******* with *** *** **** of ******** ** *** the **** ********. 

**** ** *** **** solution **** ******** *******, multiple ******* , *** low **** 

**** *** *** **** does *** **** ** spend ** ***** *-** k ** ******** , you ****** *** *** to **** ******** ****. 

 

*'*** *******.... 

********* ********* ** ********* that ** ** ****** used (********* ******* ***** are **** ** ***** redundancy ********* **** *** much **** ****** ********) as ** *** **** be ***** **********.

*** ********* ******* ********* ********* *********** ** ***** ** 'never ******' ** ** be *** ******* *** same ***** *************.

************ ** ****** **** in ************ ************ ******* there ** ** **** need ** **+% ** installs.... *** **** ***** is * ****, ** is * ********, *** simultaneous, ****** ****** ******* solution. 

 

****** ******.

******** ******* *** *********.

******** *** ******.

 

"VMS *******

**** ***** ****** ************* now ******* ********* *********"

**...

"****** ******.

******** ******* *** *********"

*** *****.

**...

...**** ** *** ***** and **** ** :)

...*** ************, ** ***** in ******* ** *** the ** ** ****** to ******* ******* ** its ****** *** ***** - ** * '******** simultaneous ****** *******' ********.

**** ******* * ***, cameras **** ******* *****-******* would ******* ‘******** ************ client ********’.  *** ******** multiple **** ******* *** **** stream ** *** ***** entrance.

** *** ********* ****** is *********** *** **** streams *** ********** **** to *******, ********* ********** of *** *** ***** come **** ****. * believe ********* *** ******* does ****.

** *** ******* *** pulling **** ******* ******** from *** *******, *** toggling ******* ********* ********** ******** the ****** ** ********, then ************ **** *** VMS ***** *** **** into ****. * ***** you ********* *** **** architecture **** ***** * ************* eco ******, (**** ***** VMS *** *******) ******** a *****/*********** ***********.

*'* ********** ** ******* a ******** ***** ************ recorded ************ ***** ***** be *********.

********'* **** ********* ***** makes ** ****** ***** is *** ******** **** to *** ********* ******, which **** ********** ***** profile ** **** ** client. ** ** **** is ********; *** ******* are ******* **** ******* from *** ********* ******, Avigilon ***'* *********, **** multiple ******* ***** ******** the ********* ******* ********* server *** *******. ** hunch ** *** ******* actually **** **** ******* from *******, *********** *** profile ********. ** **** scenario, ************ ********** ** the *** ***** ** unnecessary. 

***** ******* **** ******** could *******, ******* *** rep ** ** **** had ** ****.

"** ***** ** *** clients ******** **** **** streams **** *******, *********** the ******* ********."

**** ***** ** *****.

* ***'* **** ******** ******** **** ******** camera ******* **** ******* to *******.  ******* (**** those **** *** *****-******) are ********* *** ******** to ****** ** ******** other **** *********.

******* *** ******** ***** directly **** ******* ** clients. ** *** **** multicast **** *** ****** to *** ******, ** others **. **** **** about ** ** * recorded ******* **** (****** it's * ****** ***** explanation). 

********** ** ******* **** as ****, *** *'* **** less ******** **** ****. 

* ***** ********* - multicasting **** *** ****** to *** ****** ** specifically ********* ** **** examples...  ****** *** **** info *****.

********:

** **** ****-***** ********* would *** **** **** cameras ** ****** ******** to **** ******?

*'* *** **** **** I *** ***** ** any ************ - *** maybe ****** **** *** this ****.

*** ** **, *** not *** *** *** recorder (** *********** ** recorder *** **********) ** the *****-******* ******* ** the ******?  *'* ********* curious.

****:  * **** **** it ***** * ******* into **** ******* ***** before * *** ** fight ******* ***... ** that **** ***** ***** the ******* *** **** feature ***** ** ****** by ******, ** ** deeper **** **** ********* than * ***** **** it.

** **** ****-***** ********* would *** **** **** cameras ** ****** ******** to **** ******?

*** *** **** ******* you **** ** ********* from *** ****** ** the ******, ******* *********.

*** ** **, *** not *** *** *** recorder (** *********** ** recorder *** **********) ** the *****-******* ******* ** the ******? *'* ********* curious.

***** ** ** ‘***** lifting’ ****** *** *** camera, ***** **** ******* multicast ***** **************, ***** as ***** **** ******* already **** *****-**.

*** ******* **** **** ** *** VMS, *** * ***** latency **** ** *** client **** * *** based *********.

** **** ***** ******, I *** ** ******** that ******** ******** **** this (**** *******), *** many ****** ****** ** is **** *** ********* recording, ********* *** ********* **** *.

"*** *** **** ******* you **** ** ********* from *** ****** ** the ******, ******* *********."

**** ******* **** *** camera ** *** ***** recorded, **?

*.*. ** *** ****** is ********* ** *** recorder - *** *********** ** ****** ******** to * ******, **** there ** ** ******* bandwidth **** *** ******, but *******, ********* *********.

* **** ***** **** maybe * ******** ******** could ******* *** **** for * ****** ** stream ******** ** *** client (******* ** **** sending *** ****** ** the ********) - *** I **** ***** ***** of ****** ********* **** function, *** *** ***** they **** ** **** to **** **********.

**** ******* **** *** camera ** *** ***** recorded, **?

*.*. ** *** ****** is ********* ** *** recorder - *** **** also *** ** ****** directly ** * ******...

**, **** *** ******** and *** ******* ***** read *** **** ****** multi-cast ******.

****** **** ********** *******, use ***** ********** *** live ***** ** ****** without ******* **** ****** on *** ******* ********.

*** ******** ***** *** don't ****** **********. * federated ****** ***** *** only **** ** **** at * ***** ******** of * ****.

 

* ********* ******* ***** be *******.  **** **** tons ** ******* *** unicast ** *** ********, so **** **** ********* to ***** *** ******.  Some ***** **** ****** could ** ******** *** same ****** *** **** watch *** **** *******, with ********** ** ******** or ******.

*****. ***** *** ******* that *** **********, *** even ******* ******* ******. 

** ***** ** ******* to ******** *** ***** if * ********** ***** white *****. *** ******* send ***** ******* ** the ********* ******, ** then ******* ***** ****** to **** ** ******. 

**** ***** **** ********* support ** ***** *** to **** ********* ** saving ********* ** ******** clients.

*** ** *** *** creating, ************, *** ********* 3 ****** ******* ** the ******, ***'* **** self *********? ***** ** typically, ************* **** ******* than *******.

 

 *******

* ******* **** ************ was ********* ******** ** alleviate *** ****** ** decoding ******** ** *** those *** ***'* ********* the ****** *******. **** market ** ** ********* savings.

**** *** **** * stream, ****** ***** ** something ***** *** ********** of *** ***** **** need ** ** *********, in *********, *** **** send ***.  ** ** answer, * ** *** sure *** **** ***** send **** **** *** multicast ****** *** ******, etc. *** ********* *** stream.  ****** **** *** unicast *******.  **** ** would ** *** ****** and ******.

**** ******** ****, *** camera ******* * ******* at ********* ***********, *** transmits **** *** ************** to *** ********* ******. The ******* *** *** multicasting.

**** ****** ** ****** example

* * **** ******

* * *** ******

* * *** ******

 

****://********.***/*****-******/*******-*********-**********-***-****-**********-*******/

*** *** **********multi-stream ******** capabilities (Avigilon's HDSM, FLIR's Adaptive Streaming) with multicast functionality.

***** *** ****** **** up *** ** **** course....

***** *** ****** **** up *** ** **** course....

*** *** ********** *****-****** encoding ********* **** *****.

***** **** *** , found **** ****** ****** , ******* ** ***** signal, *** ****** ** place, ***** **** *** and *** ** ***** out ***** ** *** used ***** ** *** cameras ** ** *** to ****** **** ** not ******. 

***** **** **** ***** a ****** ***** **** camera ** *** ** divide ****** , *** variable ********* , ****** event ********* *** *** up ***** *** ***** , **** ** **** able ** ******* ********* 

****** ****** , ******* Events *** ****** ********** of ****** , *********** with **** ***** **** , ***** *** ** time ** ****** *** details 

** ** ***** **** just ******* *** ******* , ****** ****** 

*** ***** *** **** had ** **** ********** to *** ****** ****. 

"*******, ** ****** ***********, where * ****** ****** of ******* *** ****** by * ***** ****** of *******, ********* *** be ********. ** ********* or ********* ******* *******, for *******, **** * dozen ******* *** ** connected **/*, **** ********** occasional *****.Client ***** *** ***** ****** ******** ******, ** ****."

**** ****** ******** ** a ****** *** ****, imo - *** * don't ***** **** ********** the ************.

** ** * ********* truth **** ** '****' surveillance ************, ************ ** an ****** - *** unneeded - ******.  ***?  Because ***** *** **** few **** ***** ******** applications ***** ***** *** large ******* ** ************ client *********** ********.

*** ***** ***** ******** applications **** ******* ************ to ********** ************ ****** machine ******** *** *****?  absolutely.

*** **** ***** ***** applications **** *** ** value ** ************ *** day ** *** ********** - ******** *** ************** potential *****?  **** *** excrement **** *** ***, the '*** ** ***' solution *** **** ********* to ******* *** ****** data ** * *********** response ****. 

 

 

** ****** ** * campus ****** * *** years ***.  *** ********** (and ******* *** ******'* IT **********) ***** *** allow *****-*******, ******* **** the **** **** **** multiple ******* ***** **** likely *** **** ** observe *** **** ******(*) simultaneously.

** ******* ***** *** same ********, ** ***** by *********** #*, ****, in *** ***** ** an ****** ******* ** other ********* *********, *** eyes ***** ** ** the ******* *******, ******** resulting ** **** ** no ****** ** ****.  The ******** *** ********, and **** **** **** lucky ** ***.

****** ***** ******* *** doesn't ********** ********* ** their ******* ****** ******, this ******* *** *** time.  * **** **** networks **** ******* ** on.  *** **** **** should *** ******* **** argument, **'* * **** one.  **** ****** *********.

** *********, *** ***** manufacturer ******** *********.

** * *****-**** ******** or *****-**** ******** ** both?

** **** ******* ********** a * **** ****** will **** *** * Mbps ** *********, ******* of *** * **** used ** * ******* network.

****** **** ** ********** true **** ** *** four ******* **** **** into *** **** ******** switch.  ** **** ******* are ** ********* ******** that *** ****** *** gain.

*** ********, ******** * different ***** ****** ******* being *********** ** * viewers **** **** ****** on ***** *** ******.

**** ****** **** *** 8Mbps ** *******, ********** of ******* ** ** configured ** ********* ** unicast.

**, * ***'* ***** so:

 

* ** ** ********** wizard - *** * believe **** *** ***** 3 ****** (******** ** above ***** *** ******** streams **** ** *** switch) ***** *** **** off *** ******** ** deliver ************ ******-********* *******.

** * *****, ********** wizard **** *******?

* **** **** “**** viewer ** ** ***** own ******”.

*** ***** ** ******* if **** ****** *** only * **** ** their ********** ****** *** single *******.  ****** **** a *** ** ******** for * ***** ******.  Otherwise ** *** **** a ****** ****** ** a ****** *** ******** to *** * ********* users, *** **** *** camera ****** ***** ***** 8Mbps ** *******.

*** ***** ** ******* if **** ****** *** only * **** ** their ********** ****** *** single *******.

*****.  ****’* **** * clearly ****, **?  “**** viewer ** ** ***** own ******.”  ******, ** be *****, **** ****** is ******* * **** of *** **** *******.

****** **** * *** of ******** *** * small ******.

** ******, * ****’* mention ** *** **** network ** **** *** all ***** ** ***-************ tasks.  **** *-**** *** Word *** ********* ***.  

** ****, ** ** makes ** ****** ** imagine, **** ***** *** its *** ******, **** floor *** *** *** reception ****.  **** ********* area ***** * **** of *** **** ****** floor ***** *** *********.

*** **** **** ** imagine, ** **?

*** ********* ***** **** to ***** *** **** camera **** ** **** uplink ********* **** ******** on ************ ******* *******.  Your ****** **** **** also ********** **** ********* and *** ****** ********* goes ** (*** ******* have * ***** ** quality ****** *** *** number ** ****).  **** multicast, * ***** **** all ***** ** **** network ******* *** **** while *** ****** ***** breaks * *****.  **** L3 ****** *** ** panicking *******, ****.

*. ** ** ******** C1 *** **, ** is ******** ** *** C2

*. ** ** ** floor *, ** ** on ***** *

*. ** ** ** switch *, ** ** on ****** *

*. ** *** ** are ** ****** *

* = ********* ***** for * ****** ******

*. ** *** ** are ************ ** ****

*. ****** * ** experiencing ** ** ** but ** ***** **** two ***** ** *** C2 (**** **)

*. ****** ** ** is ************ **

*. ********* ***** **** see ** **** **** C1 *** **

**. **'* **** ***** see **, *** **** each ******

***. ****** * ***** only *** ** ***** from ** *** **

**. ****** ***** *** 2B

** *** ***** **** on ** **** **********, in *********, ******* ******* except * *** **** to **** *** ****** down.

** *** ******* ****, uplink ***** * *** +xB, *** ** *** C2 **** * *** and ***** **** ** the ****** ***** * hit.

******* ***** ** ******, multicast ***** ** ***** off.  ** ****** *******, CPU (***** **** ******* design **** *********) ***** be **** **** ***** concern.

-****

**** ****** **** **** also ********** **** ********* and *** ****** ********* goes ** (*** ******* have * ***** ** quality ****** *** *** number ** ****).

*** ****, ** ***** are ******** ** **** situations, *****.  ***** ******** are ******** **** ******** viewers ** ****.   Of ****** **** *** ultimately ******* ** ****, but ******* **** ******* are.  *********** * ********* this *********** *******.

* ***** ** ************** **’******************* *** *** *** case * *******, ** wit:

**** ****** **** *** 8Mbps ** *******, ********** of ******* ** ** configured ** ********* ** unicast.

** *** ***** **** my ********* * ** more **** ***** ** engage ********* ******* ******, but *’* *** **** that*************.

***, *** *** ***** that ************ ******* *** work **** *** ****** producer (*** ** ******) does ******* ***** ** one ****** ** **** downstream.

******* * ** ******** specifically ** *** ******** bandwidth *********** *****.

** ******* *** **** for **** ********** ******, because ***, **** ****** is ***** ******* * Mbps. *** *** *** ****** to *** ***** ******, it's ***** * **% reduction ** *******, **? 

*** *** *** ****** to *** ***** ******, it's ***** * **% reduction ** *******, **?

***, *** ******* ** the ***** ******* *** device’s ******** *** *** the ***** ******’* ******* port ***** ** ******* as *** ***.

**** ** *** ** doesn’t **** ***** ** multicast **** *** ********.  

 

** ***** ** ***** to *** * ***** that ********** *** ************ of **** ************ **** supports *********. ** * understand ** **** **** support ****** ** ******, some *** ******* ** camera ******** ** ****** bypassing ******* *** ******** and ** ******* ******* out ***** *** ****** as ****. 

** *** ******** ** expanding **** ***** ** be **** ********. ** need ** ******* **** capabilities *** **** ******.

*****, **** **** **** with *** *****, ** someone **** ** **** familiar **** **** ** these *** *********, ** hard ** *** *** truth/facts **** ***** ****** and ********* ***********. 

*** *******, ***** **** the ******** ********** ** the ********* ** ****, if * ********** ** potential ******** ***** ******** if **** ********* ********* - **** ***** **** to *** ***!, *** from *** ***** ** is ***** **** **** would *** ** * truly ****** ****** - because *** ***** ** the ******** *** **** would **** **** - do *** ******* ** from *** ****** *** viewing? 

** *** ** **** with **** **** ***** years ***.  *** *** ONSSI *** **** **** support **, *** **** would ***.  *** *** is ** *** ******* I ***** ***, **** did *** **** ** their **** ********* ******* (which ****'* ******) *** only **** *** ****** - *** *** ******.

*** ***** ** ** is ** ** **** to ******** * ******** and **** ** **** work *.*. **** **** customer **** ** **** to **** ***** ****** work ** ********. 

*** ******* * ****** based ****** **** * amount ** ******* **** is ********* *** ********** video ** ******* ***** today *** *** ** a ****** ***** ** a ****** ** ** people *** ** ** see *-****** ** *******, the ****** ** ************** processing ***** ******/********* *** through *********** - ******* are *** ********* ** 30 ****** *** ****** - ****, *** ****** crashes.

*** ** ** *** enabled - ***** ** clients ****** ** *** video ** * ******** set-up ******* ***** **** no ****** ** *** server.

**** ** *** ****** of ********* ** *********? Are ***** ******* ************** in **** ******?

** ******** *******, * have ** **** ******* these ********.  ***:

*.)  ***** * ******** do *** ***** *** LAYER * ******** **.  Routers *** **** ******* the ********* ********.  **, a ** ****** ** NOT * ******, **** may *********** **** *** there *** ***********.

*.) ********* ***** ** Layer * *** ***** 3.  **** ******** ** run ** *** ** level ** ****** *** requests *** ************.  ** L3, **** *** ***, it **** *** *** done *** **'* **** in ****** *******.  ***** your *** ****** ** your ** ******!  [*******: ****-*********] ****** ** you *** ** **** level, ****** **** ** (Dijkstra *********), ** **** wrong *** *** **** down ********.

*.) ******** *** **** the ******** ** ****** and/or **** *********.  ** it *** ****** **** it *** **** ** record * ****** ************* of ******.  ** ** can **** **** ** will ****** **** ** other (********) ******* ** recorders.

*.) ***** ** *** software **** ******** **** Multicast.  *** ***** ***********, this *** ** **** important, ******** ***** *** work-arounds.

* **** **** **** that **** ******** ******* the *****-******* ******** ****** than ******, ***** ** whether ***** ** * dedicated ********* *** *** IGMP ********, ** **** a ******** *******.  *********, large ***** (****) ******* can *** *** ******.  Is **** ****?

* **** **** **** that **** ******** ******* the *****-******* ******** ****** than ******, ***** ** whether ***** ** * dedicated ********* *** *** IGMP ********, ** **** a ******** *******. *********, large ***** (****) ******* can *** *** ******. Is **** ****?

***, * ***** ***** is * ******** ********* in ****** **** **** snoop ******* ****** ** have * ********* **** for **** *******, ******** you ****** * ***** multicasting **********.

***?

******** **** ******** * layer * ****** ***** with ******, **** *** efficiently.  ******* ****** **** snoop ** * ***** ‘nother *****, ** *** the ****** *** ** rise ** *** ** level ** ************ ******* out ** ****** *** deciphering ********* ************.

****’** *** ****** *********** functions ***** *** ****** well ** ***************.  ** your **** **** ****** down, ** **** ****** the ****** ** ******* by ********** *******, ** as * ******** **** multicast ** *** *****.

 

**** ** ** *** usually *** *** *******, it's ** *** ***.

*** ** ****** **** ancient *** ** ****** as ******** ****.  **** simply ******* *** ****** wanting ******* ** ******* content *** ******** ******.  PIM ***** *** ** send ** ****** **** or ********* ********.

**% ** *** **** PIM ** *** *******, not ****.

**** ******** **** *** have ********* ****** ***** days, **** ** *** a ***% ****, ** a ****** **** ******, that ** ***** *** bigger ******* *** ** much ****** *********.  *******, these **** ** *** usually ***** ********* ** per ****** *********** (**. as ******** ******* ** a ******'* ************).

*** ****** *** * say ** **** ***, is *******, *** *******, Cisco *****.  **** **** a *** ****** ***** is ** ********* **** it's *****.  ** ***** a ****** ****** **********.  In **** ****** * could **** ******* ******* of ********* ********** (*** switching ** **** ** the ****** ******, *** the ***.  *** *** are **** *****...***** ** kind ** ****).

* **** * ****'* over ****** *** ******** too ****.

* **** * ****'* over ****** *** ******** too ****.

** ** **** ****** to *** ******** ****, “No, *** *******.”?

**** *******, ***** *****, no *****'* ******. **** size *********** *** ** talking *****?  **** ****** is *** ***** **** of *** ***** *** rather ***** *** ****** of ********.  ********* ************* also ****** ****** ***.  From **** * **********, Pelco, *** *******, ** the **** ********* ********* by *******.  **** **** add **** ********* ** your *************.  * ***** also *** **** ** more ** * ****** challenge **** *** (**/** rule), *********.  **** *** not ** *** **** in ***, * ******, where *** ***** ** the ****** *** ******** 2-4 *****/******.

**** ... **** ** the **** ******* ****** in * **** *** me ....  * ** learning * ***! **** it ********* *** ********** and **** ** ***** !!

***

******* ****** **** *******  type of multicast ** ******* *.* how **  *** ******* for ***** ***** ******** for ***/ ******

****** ******** ** ********.
**** *****.


********** *** *** ****** are **** ********* ** Japan.
** *** *** **** every ********.
** *** *** ****** Genetec *********** ** *** world. (**** **** *** by *******)
** **** ***** * lot ** ********* *******.
*)
**** **** ******* ****** stream ** *******.
**** **** ******* ** TCP.
********** ** ********* **** Omnicast ******.
**** *** * ********* item.
*)
*** ******* ***-********* ************ itself **** *** ****** much **** *******.

*** ********* *** ** the ** / ** switch.
******* ********* ***** ********** is *** ******* ** 256 **.
* ** ********** ******.

******** **** **** ******* to **** ********** ********.
** *** ****** *** manufacturer ** *** ******, immediate **

***** *** ****.

** ******** **** *** this *** ** ** place *** **** * years *** ***** **** quarks ** *** ******* 

****** **** ** ****** or *** ********* ** upgrade ******* ** ***** versions 

***** ** ******* ******* switch's *** *** *******

*** *** **** *** New ******* ******, *** solvable , *** ******** lots ** **** ** troubleshoot *** ***** **** process's  

******* **** * ******'* ( ** ) 

** ******* *** *.* mpxl ,*** ****,  ***** between * **** **** 4 ********* ******* *** puts *** ******** **** stations ** ******* ** review **** *** *******

** ** *** *** and ******* *** *** it ******* *** *** set ** ****** *** needed ********  

**** *********** 

********* *** *** **** of ******* , ******** from ****, ** **** outputs, ********* **** ******** to ***** *** **** and ******** **** ******** to ******** ****** ***** 

***** **** **** ** the ******* ***** *** play **** ******** *** we ***** 

********, *********, *******, ********* to *** ***. 

****** *********** ** *** what , ***, *** to *** ****** ******* by ****** ** *******. 

***** **** * *** Analog ** ** *** line ******* **** ***** work 

**** ** ******* ****'* and **** ***** ******** to *** ****** ****** , *** ** **** 

*** **** * *** we **** ***** * up ** ** ** go ** *-* **** and ***** **** *** old ** *****. 

***** ** *** * e *** ***** ******* thru **** ***** ******* for ******* ********** **** now **** ** ******* instead ** ** ** in ********* 

 

 

 

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