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Questions on DPs / Pull DPs over WAN link at branch offices RRS feed

  • 问题

  • hi all,

          need some help here.

    Have read some articles about BITS/LEDBAT/BranchCache/Peer Cache from internet but still have few questions below need some clarifications.

     

    I have SCCM CB 1910 with DPs configured at the HQ site with BranchCache & LEDBAT enabled and enable BranchCache in Client settings. Also enable BITS throttle at 1000Kps from 9am - 6pm

    Try to determine whether should use standard DPs or Pull DPs for all the branch offices (150 sites):

    1.) Standard DPs with BranchCache & LEDBAT enable (Windows 2019)

    • Does the content transfer from HQ to DPs will be using SMB protocol and based on the scheduler & rate limit configure, correct?
    • For the client at the branch office will be using LEDBAT to download and ignore the BITS throttle, correct?
    • Once download started, it will use BranchCache to share the content with the rest of client within the same subnet, correct?
    • It will be benefits to use Peer Cache if there are multiple subnets there else each subnet will download the contents from DPs share amount the subnets?

     

    2.) Configure as Pull DPs with BranchCache & LEDBAT enable (Windows 2019)

    • The content will be pull from standard DPs from HQ will be using LEDBAT and ignore the BITS throttle, correct?
    • The rest should be similar as standard DPs questions above, correct?

    Alternatively, we can just use Branch Cache and Peer Cache on client PCs with boundary group without Standard DPs / Pull DPs to address this branch offices network bandwidth concerns, correct?

     

    Appreciate for the help

    Thanks

    ytlaw

    2020年7月9日 7:26

答案

  • Does the content transfer from HQ to DPs will be using SMB protocol and based on the scheduler & rate limit configure, correct?

    For standard DPs, yes.

    For the client at the branch office will be using LEDBAT to download and ignore the BITS throttle, correct?

    No. BITS is a client (aka receiver in this case) side throttling mechanism while LEDBAT is a server (aka sender in this case) side throttling mechanism. There really is no reason to use or configure both as LEDBAT is dynamic and accounts for end-to-end bandwidth availability.

    Once download started, it will use BranchCache to share the content with the rest of client within the same subnet, correct?

    Correct.

    It will be benefits to use Peer Cache if there are multiple subnets there else each subnet will download the contents from DPs share amount the subnets?

    Correct. This is based on your boundary groups.

    The content will be pull from standard DPs from HQ will be using LEDBAT and ignore the BITS throttle, correct?

    Same answer as above for the client because a PullDP is more or less a client in this scenario.

    Alternatively, we can just use Branch Cache and Peer Cache on client PCs with boundary group without Standard DPs / Pull DPs to address this branch offices network bandwidth concerns, correct?

    That depends on many things. I would never say that Peer Cache and BranchCache are about addressing bandwidth concerns specifically though. Just like DPs, they move content closer to the clients so that only one (or a few depending on the details) of the systems at a location ever has to download the content over a WAN link. They are all more or less complementary and have their own nuances.


    Jason | https://home.configmgrftw.com | @jasonsandys

    • 已建议为答案 Amanda You 2020年7月10日 7:37
    • 已标记为答案 ytlaw 2020年7月11日 7:07
    2020年7月9日 14:30
  • Not necessarily as even with normal DPs you have scheduling and throttling capabilities. These aren't dynamic like LEDBAT, but can still be effective. It really depends on the constraints involved.

    Jason | https://home.configmgrftw.com | @jasonsandys

    • 已标记为答案 ytlaw 2020年7月11日 7:07
    2020年7月10日 17:01

全部回复

  • Does the content transfer from HQ to DPs will be using SMB protocol and based on the scheduler & rate limit configure, correct?

    For standard DPs, yes.

    For the client at the branch office will be using LEDBAT to download and ignore the BITS throttle, correct?

    No. BITS is a client (aka receiver in this case) side throttling mechanism while LEDBAT is a server (aka sender in this case) side throttling mechanism. There really is no reason to use or configure both as LEDBAT is dynamic and accounts for end-to-end bandwidth availability.

    Once download started, it will use BranchCache to share the content with the rest of client within the same subnet, correct?

    Correct.

    It will be benefits to use Peer Cache if there are multiple subnets there else each subnet will download the contents from DPs share amount the subnets?

    Correct. This is based on your boundary groups.

    The content will be pull from standard DPs from HQ will be using LEDBAT and ignore the BITS throttle, correct?

    Same answer as above for the client because a PullDP is more or less a client in this scenario.

    Alternatively, we can just use Branch Cache and Peer Cache on client PCs with boundary group without Standard DPs / Pull DPs to address this branch offices network bandwidth concerns, correct?

    That depends on many things. I would never say that Peer Cache and BranchCache are about addressing bandwidth concerns specifically though. Just like DPs, they move content closer to the clients so that only one (or a few depending on the details) of the systems at a location ever has to download the content over a WAN link. They are all more or less complementary and have their own nuances.


    Jason | https://home.configmgrftw.com | @jasonsandys

    • 已建议为答案 Amanda You 2020年7月10日 7:37
    • 已标记为答案 ytlaw 2020年7月11日 7:07
    2020年7月9日 14:30
  • Hi,

    Thanks for posting in TechNet.

    Thanks to Jason for his detailed answers.

    Besides, here is the article about Peer Cache we could refer to:
    Peer cache for Configuration Manager clients

    Thanks for your time.

    Best regards,
    Amanda You

    Please remember to mark the replies as answers if they help.

    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    2020年7月10日 7:36
  • Hi Jason,

                Thank yo so much for the answered. 

    Can i say that Pull DPs is much more efficient in terms of transferring the content from HQ to branch office as compare with standard DPs because of LEDBAT?

    Thanks

    ytlaw

    2020年7月10日 14:46
  • Not necessarily as even with normal DPs you have scheduling and throttling capabilities. These aren't dynamic like LEDBAT, but can still be effective. It really depends on the constraints involved.

    Jason | https://home.configmgrftw.com | @jasonsandys

    • 已标记为答案 ytlaw 2020年7月11日 7:07
    2020年7月10日 17:01