What ** ******* ** *******?
******* ** *******(***) ****** ** ********** used ** ****** ********************* ******** ************. *********, it ** ******* **** IP ***** ** **** services *** ******* ** the **** ******* ** typical **** ******* (**** transfers, ******** ***, ***.). Video *** ***** *** highly *******-*********, ****** ***** other ********, *** *** be ********* ******** ** bandwidth ** *** *******, resulting ** **** ******* and **** *******. ***** issues *** ****** ** dropped ******, ******** *******, camera ************** ** ***** undesirable ** ************* *******.
How *** ** *******
***** *** ***** ******* by ***** *** ** generally *******:
- ** ***********:******* *** ** *********** is ******* **** ******. This ****** *********** *** allocates ********* ***** ** the **** ** *********** it ******. *** *******, FTP ******* *** ** assigned * ***** ******** than ********* *****, ** maintain ****** ***** ***** and *******. ******* *** by *********** ******** **** all ********** (*******, ********, servers, ***.) ******* ***, normally ***********, *** **** ****** means ***** ** ******* traffic ** *** ***********.
- ** ****:***************** ** ******** ********* QoS, ******** * ******** VLAN ****** ******** **** the ****** ***, ** cameras, *******, *** ******* clients ******* * ****** share ** *********. ******* QoS ** **** ******** that *** ******* ******* VLAN *******, *** *** is *** ** *** switch, ********* ******* ******* at *** *******.
- ** ****:*******, *** *** **** be *** ** ****. This ** ********* *** used ** ********, *** may ***** ** ********* by ******* ************** ** database ******* *** ******* a ******* ****** ** guaranteed ********* ** ******* their ****, ***** ***** performing ******* *****, ** not. **** ****** ** more ****-********* ** *********, since *** ***** **** be **** ** ******* login, ****** ********** **********.
** ****** ***** ****** is ****, ** *** is *******, ******* ******** must ** ****, ** QoS *** *** ** configured ** ********* ********. Below ** ******* ** example ** ******* ******'* QoS ******** [****: * Cisco ****** ** ***** as**** *** **** ****** in ************ ********].

**** *******, ***********, **** ********* ******** that ***** **** ***.** and **** ******** ****.
No **********
*** ** * ************** in **** *****, *** not * ********* *********, arranging *** ***** ** which ******* / **** are ****** *** *******. Some ******** *** ***** bandwidth ***********, ******** ******** services ** ******* **** X ****** ** *********, instead ** * ****** prioritization. *******, **** ** generally *** ****, ** it ** ******** ** more ********* ********** ********, and ********** ** ***** connections ******* ******** ** WAN ***********. ** **** cases, ************** *** ******** is **********.
Dedicated ** ****** ******* ***
*** ************* ***** * dedicated ******** ******* (**** ****** ** ** video), *** **** **** little ********* ******. ***** below *** *** ********** derived **** ********** ******* which ********** *** ***** majority ** ************ ******** are *********, *** ******** likely **** *** ******* from ***.

***** *** ** ********* gains ** ******** *******, i.e., ************, ****** *******, and ** ******** *** used ** *** **** network, *** ******* **** is ****** ***********.
** ****** ********, *** may ** ***** *** systems ** *** ****. In * **** ** eight ****** ****** ******* a ****** ** * small ****** ** ****** applications, ******* *** **** available ********* ******* *** is **********. *******, ** larger *******, **** ** schools, ***-***** *******, ****** environments, ***., *** ** more *********, ** *** necessary, ** ***** ******** may ****** ****** *********.
Setting ** ***
*** *******, ** * shared ********** *******, ***** IP ************, *****, *** data *** *** *******, QoS ** ********* *** in *** ** *** ways:
- *****, ** ***********, ***** DiffServ ******* ** ********** applications. *********, ***** ** prioritized *****, ******** ** video, **** **** ********, internet ****, *** ***** general ****. *********** ** voice ** **** ********** to *****, ***** ***** may ****** ***** ******* better, ****** ***** *** higher ********. ** ** example ** **** ** IP ****** ***** *****. When ***** ********, *** must ** ********** ** each ******, ********* ** entering * ******** **** point (****), ***** ********** to ******** *****, ******** in *** ******. ** some *******, ********* ***** may ** *** *** services **** ** *****, video, *****, *** **********, so ***** ********* *** prioritized **********. ****, *** not ***, ** ******* supports ******** ** ***** ahead ** *** **** to *** **** ******. Below ** ******** ************* for * ********* ******:

- ******, ** ****. ** this ****, *** ****** voice ****, ******** ** security, *** ******* ** file ******** *** ******** data ***** ***** ** assigned *** ** * whole. *** *** **** part, **** ** *********** the **** ** *** by ***********, *** ********************* ** *** ****, meaning **** ********** *****, audio, */* ****, *** other ***-***** ****** ********* all ******* *** **** priority.
CBR **. *** *** ***
**** ******* * ******* enabled *** ***, *** can *** ** **** camera ******* ** ******* quality ** *******. ** do **, ****** / *** **** bit **** ****, ** CBR, ** **** **** constrain ******* *********** **** network. ********* *** *** will ******* *** **** predictable *******. ***** *** or *** **** **** provides * ***** ********* target, ******** ****** ********** of **********, ***** *** provides ************** ** *******, reducing ******* *** ****** loss. *****, ***** *** bitrate ******* *** * Hikvision ******.

***********
***** **** *********** ****** to *** ***** ************ systems ** * ********* network, *** ** ********* not ******. ** ******, shared ********, *******, ** becomes ***** ** ********** unexpected *********** ***********.
Test **** *********
**** ***** ******** *******
[****: **** ******** *** originally ********* ** **** and ************* ******* ** 2017]
Comments (14)
Randy Lines
Thanks for the great article :) Would love to see more on managed switch settings for video optimization and security. Personally I don't think that I use a managed switch to its full capacity.
rbl
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Undisclosed Manufacturer #1
Great article
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Undisclosed #2
Yes but even with all the cameras on a dedicated network, the viewing clients are typically on the corporate LAN. Moreover, this bandwidth demand is not bound to the number of camera streams, but to the number of viewers of those streams.
Wouldn’t QoS possibly be helpful when deployed on those segments?
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Walter Holm
.
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Chad Rohde
Generally not used maybe, but it is also featured in sub $20 SoHo wifi routers/switches/APs. No restrictions that you mention either.
I know my beloved Mikrotik will win this argument and require an edit to original post.
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Dennis Ruban
You're doing great job posting those network-related articles!
regarding this one, I agree with a conclusion: most of the security networks are physically separated from the data networks, so QoS is not something people need to think about. And if we have a big corp network with different services, including CCTV, there's always a qualifier network admin to think about architecture so CCTV guy don't need to do anything, except setting up the numbers in the device settings
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