QoS for Video Surveillance

Author: IPVM Team, Published on Dec 29, 2017

Along with VLANs, QoS is one of the most misunderstood topics in IP surveillance networks. Many purported "experts" claim it is required in any and all surveillance systems, but little clear guidance is given about why, leaving those new to the field confused. In this note, we cover the basics of QoS, what it is, how it is applied, and when it should be used.

Inside we explain:

  • What is Quality of Service
  • How Quality of Service is Applied
  • Limitations
  • Practical Uses
  • Setting up QoS
  • Quiz Yourself: 5 Question Quiz to measure your knowledge on QoS for Surveillance

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

***** **** *****, *** ** *** ** *** **** ************* topics ** ** ************ ********. **** ********* "*******" ***** ** is ******** ** *** *** *** ************ *******, *** ****** clear ******** ** ***** ***** ***, ******* ***** *** ** the ***** ********. ** **** ****, ** ***** *** ****** of ***, **** ** **, *** ** ** *******, *** when ** ****** ** ****.

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  • Quiz ********: 5 Question Quiz to measure your knowledge on QoS for Surveillance

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What ** ******* ** *******?

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How *** ** *******

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

  • ** ***********:******* *** ** *********** ** ******* **** ******. **** ****** categorizes *** ********* ********* ***** ** *** **** ** *********** it ******. *** *******, *** ******* *** ** ******** * lower ******** **** ********* *****, ** ******** ****** ***** ***** and *******. ******* *** ** *********** ******** **** *** ********** (cameras, ********, *******, ***.) ******* ***, ******** ***********, *** **** ****** ***** ***** ** ******* ******* ** its ***********.
  • ** ****:***************** ** ******** ********* ***, ******** * ******** **** ****** priority **** *** ****** ***, ** *******, *******, *** ******* clients ******* * ****** ***** ** *********. ******* *** ** VLAN ******** **** *** ******* ******* **** *******, *** *** is *** ** *** ******, ********* ******* ******* ** *** devices.
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**** *******, ***********, **** ********* ******** **** ***** **** ***.** *** **** priority ****.

No **********

*** ** * ************** ** **** *****, *** *** * bandwidth *********, ********* *** ***** ** ***** ******* / **** are ****** *** *******. **** ******** *** ***** ********* ***********, allowing ******** ******** ** ******* **** * ****** ** *********, instead ** * ****** **************. *******, **** ** ********* *** used, ** ** ** ******** ** **** ********* ********** ********, and ********** ** ***** *********** ******* ******** ** *** ***********. In **** *****, ************** *** ******** ** **********.

Dedicated ** ****** ******* ***

*** ************* ***** * ********* ******** ******* (**** ****** ** ** *****), *** **** **** ****** ********* ******. ***** ***** *** the ********** ******* **** ********** ******* ***** ********** *** ***** majority ** ************ ******** *** *********, *** ******** ****** **** not ******* **** ***.

***** *** ** ********* ***** ** ******** *******, *.*., ************, access *******, *** ** ******** *** **** ** *** **** network, *** ******* **** ** ****** ***********.

** ****** ********, *** *** ** ***** *** ******* ** any ****. ** * **** ** ***** ****** ****** ******* a ****** ** * ***** ****** ** ****** ************, ******* are **** ********* ********* ******* *** ** **********. *******, ** larger *******, **** ** *******, ***-***** *******, ****** ************, ***., QoS ** **** *********, ** *** *********, ** ***** ******** may ****** ****** *********.

Setting ** ***

*** *******, ** * ****** ********** *******, ***** ** ************, voice, *** **** *** *** *******, *** ** ********* *** in *** ** *** ****:

  • *****, ** ***********, ***** ******** ******* ** ********** ************. *********, voice ** *********** *****, ******** ** *****, **** **** ********, internet ****, *** ***** ******* ****. *********** ** ***** ** most ********** ** *****, ***** ***** *** ****** ***** ******* better, ****** ***** *** ****** ********. ** ** ******* ** have ** ** ****** ***** *****. **** ***** ********, *** must ** ********** ** **** ******, ********* ** ******** * DiffServ **** ***** (****), ***** ********** ** ******** *****, ******** in *** ******. ** **** *******, ********* ***** *** ** set *** ******** **** ** *****, *****, *****, *** **********, so ***** ********* *** *********** **********. ****, *** *** ***, IP ******* ******** ******** ** ***** ***** ** *** **** to *** **** ******. ***** ** ******** ************* *** * Hikvision ******:

  • ******, ** ****. ** **** ****, *** ****** ***** ****, followed ** ********, *** ******* ** **** ******** *** ******** data ***** ***** ** ******** *** ** * *****. *** the **** ****, **** ** *********** *** **** ** *** by ***********, *** ********************* ** *** ****, ******* **** ********** *****, *****, */* data, *** ***** ***-***** ****** ********* *** ******* *** **** priority.

CBR **. *** *** ***

**** ******* * ******* ******* *** ***, *** *** *** up **** ****** ******* ** ******* ******* ** *******. ** do **, ****** / *** **** *** **** ****, ** ***, ** **** **** ********* ******* *********** **** *******. ********* the *** **** ******* *** **** *********** *******. ***** *** or *** **** **** ******** * ***** ********* ******, ******** easier ********** ** **********, ***** *** ******** ************** ** *******, reducing ******* *** ****** ****. *****, ***** *** ******* ******* for * ********* ******.

***********

***** **** *********** ****** ** *** ***** ************ ******* ** a ********* *******, *** ** ********* *** ******. ** ******, shared ********, *******, ** ******* ***** ** ********** ********** *********** degradation.

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

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

[****: **** ******** *** ********** ********* ** **** *** ************* revised ** ****]

Comments (14)

****** *** *** ***** ******* :) ***** **** ** *** more ** ******* ****** ******** *** ***** ************ *** ********. Personally * ***'* ***** **** * *** * ******* ****** to *** **** ********.

***

***** ******** ****** * **** ****. *** ** *** ***'* have *** ***** ******* ****** **** * ***** *** *** it ** *********. *** *** **** ***** *** * ***** managed ****** ** *** ************************ ******* **** ** *** ******** *** *** ******* ********** and ********* *** **********. * *** **** ******** **** ********* that ****** ** ****** ****** ** *** ******** ***** **** harm **** ****. *** ****** *** ***** ** ***. *** I **** * **** ****** ****** *** ** ** ***** of ********/*******.

*** *** ******* ** ***** ** ****, *** *** ********** thing **** ******* ****** ****** ** **** ** ** **** comes ** ***** ** ******* *** ** *** *** *** each ****. ******* ****** **** **** ***. **** **.

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

***** **** *********** ****** ** *** ***** ************ ******* ** a ********* *******, *** ** ********* *** ******.

*** *** **** **** *** *** ******* ** * ********* network, *** ******* ******* *** ********* ** *** ********* ***. Moreover, **** ********* ****** ** *** ***** ** *** ****** of ****** *******, *** ** *** ****** ** ******* ** those *******.

******’* *** ******** ** ******* **** ******** ** ***** ********?

***** **** *********** ****** ** *** ***** ************ ******* ** a ********* *******, *** ** ********* *** ******.

*** ***** ***** ** ********* ** * ******* *** ** you ******** **** *** *** **** ******* **** *** **** critical **** ****** *** ******** **** ***** ****** **** ******* in **** *******.

******’* *** ******** ** ******* **** ******** ** ***** ********?

**** ***** ****** ** *** ************ ** *** ******, *** you ************? **** **, *** ** *** *** ** ********* into *** ********'* *********** **** *** **** ***** ****? *****. Without *** ******* ******* ******** ******* ****** (** *** *** use *** ***** **** ********* *** **** ***, ********* ** easy), **** ***** *** ** *** ***** *** **** ** go. ** *** **, **** **.

** *** *** ***** *** ******* ******* **** *** ****** (if *******), **** *** *** ***** ***** *** ********* (******** same *******, ******, ***.). *** **** ** ******* ** *** have ******* **** ********* **** ******.

******* ** *** *** ******* **** *** ***, **** *** can ****** ** **** **** **** ****** *** ** ** issue.

**, ****** *’* *** ******* ***** ************ ** ‘****** *****’ or ‘******* ******** ******* ******’ ** **** ******* ******.

*’* ******* ***** *** ** ** ******** ** ***** ************ on * ********* ***. **** ****** ******* *****.

* *** ****** ** ****** *** ******** **********. * **** try * ******* ****** ******, ******* ********:

** *** **** * *** ** ****** **** *** ******* cameras ****** ** ** *** ********'* ******* ****** **** ***** more **** ***** ******* (**** ******* ********) **** ***, *** can ******* ** ***** ** * ************ ** *** *******.

** *** ****** *** ****** ** ******* *** ********** ** the ********* *******, *** ******* ** *** ******** ******* *** possibly ***** ****** ****** * *** ****. *** *** ******* priority ** ******* ******** *********, ******* *** ****.

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

****** ****. **** ** **?

*** ** **** **** ** ********** ** *** **** *******. Even * ****** ********. ********** * ******* **. ******* *** PC ** ** ******** ********* ******* *** ********** ****** ** bandwidth. *** **** **** *** **** **** **** * * mbps ** *** **** ******** **********. *** **** ****** ****** updates ** ******* ********. **** ***** ******* ***** ****** *** corner ***** *** **** ** ****** ******, ***** **** ** issues. ********* **** **** ***** ** ******** *** ** ****** connections ** ****. ***** ****** *** ******* ***** *** ** your *******.

********* **** **** ***** ** ******** *** ** ****** *********** at ****. ***** ****** *** ******* ***** *** ** **** service.

**** ** ******* *** ***** ******, ** ****** **** *** Internet *** *** ****** ** ***** ** ** ********. ** how ***** *** ********* *** *** ** **** * ********* containing **** ***** ** ****?

.

*******, **** ** ********* *** ****, ** ** ** ******** in **** ********* ********** ********, *** ********** ** ***** *********** between ******** ** *** ***********.

********* *** **** *****, *** ** ** **** ******** ***** $** **** **** *******/********/***. ** ************ **** *** ******* ******.

* **** ** ******* ******** **** *** **** ******** *** require ** **** ** ******** ****.

***'** ***** ***** *** ******* ***** *******-******* ********!

********* **** ***, * ***** **** * **********: **** ** the ******** ******** *** ********** ********* **** *** **** ********, so *** ** *** ********* ****** **** ** ***** *****. And ** ** **** * *** **** ******* **** ********* services, ********* ****, *****'* ****** * ********* ******* ***** ** think ***** ************ ** **** *** ***'* **** ** ** anything, ****** ******* ** *** ******* ** *** ****** ********

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