configuration manager 2007 design

Posted on 2011-05-08
Last Modified: 2012-05-11

Hi all,
Talking about Configuration Manager 2007 design
we have :
site 1 : 200 users --this is Head Office
site 2 :15 users
site 3: 35 users
site 4 : 40 users
all site 2, site 3, site 4 are connecting to site 1 via WAN links
which of the following designs is better :
Design 1:
a) install Primary site at site 1, and install Seconday site at site 2, site 3, site 4
b)  install Branch Distribution Point at each site
Design 2 :
a) install only Primary site at site 1 , there will be no Secondary site at Site 2, Site 3, Site 4
b) install Branch Distribution Point at each site
the WAN link speed is about 512 Mbps
and if we select Design 2, all traffic will have to travel across the WAN links to get to Site 1
but provided we have less than 50 users on site 2, site 3, site 4, maybe Design 2 is good enough , my concern is if we select Design 2, how much traffic would travel on the WAN links for each client ? do you know on average, how much bandwidth each client use in Design 2?
tell me which Design you would choose ? and why ?


Question by:gsawan
    LVL 8

    Accepted Solution

    Design 2 sounds much better. You must enable BITS and configure its bandwidth usage to make sure that distributing software does not congest the WAN links (I suppose they are 512kbps, not 512Mbps...).

    You can't prevent constant traffic accross the WAN unless you install a SQL Server (very costly option) on each site. In case of Secondary Sites, the local Management Point must communicate with Parent's SQL which causes traffic. If using SQL Replication, it will cause traffic as well. If you make Site 1 the Central and Sites 2,3,4 Child Primaries (to fully control bandwidth usage), that will not be cost-effective solution.

    The client communication bandwidth comsumption is not high if it will check policy updates, for example, once an hour.


    Author Comment

    Hi Toxacon,
    you are right, the WAN link is 512Kbps, it was my typo.
    To make sure the software distribution does not congest the WAN link, is it Protected Branch Distribution Point the right way to go ?
    i am thinking of selecting the Design 2, and install on each site a Protected Branch Distribution Point
    by doing this, it will isolate the traffic to local only and only management traffic would travel across the WAN links
    does anyone know the client communication bandwidth comsumption (not including the software distribution traffic) ?

    LVL 8

    Expert Comment

    Yes, protect the Site System holding the BDP role.

    Also, if you have time-critical distributions you may consider having more than one BDP per Site (more than 20 clients) because SCCM connects to BDP only by using SMB and a workstation OS has hardcoded limit of 10 simultaneous connections.

    SCCM uses BITS for Management Point communication so the bandwidth consumption is up to your to decide, if necessary. The amount of transferred data is not big during normal operation.

    Author Comment

    Thanks alot!

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