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Need a little networking help switches

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  • Ninety
    Veteran Member
    • Nov 2012
    • 4062

    Need a little networking help switches

    Curious if there are switches out there that have dual uplink ports to help speed up transmission.



    Sent from my HTC Desire 626s using Tapatalk
    NRA Member
    The Constitution does not bestow wisdom. It's up to the body politic to be wise. -Patriot
    All that is required for evil to prevail is for good men to do nothing.
    -Edmund Burke
    I'd much rather go to my grave never needing my gun, than go there wishing I had it.
    - Phil Dalmolin

    The Battle of Athens was illegal too.
  • #2
    d4v0s
    Senior Member
    • Aug 2010
    • 1661

    Hard to imagine a single 1gb port wouldn't handle your needs. Need more information of what your doing.
    Originally posted by Franklincollector
    It was administered with a toothpick and placed on a street taco.

    Comment

    • #3
      lazyworm
      Senior Member
      • Jan 2006
      • 1641

      most of the time, it's the internet service provider that is the bottleneck. Most if not all commonly available switches/home routers are faster.

      Please describe your setup for better suggestions.

      Comment

      • #4
        SkyHawk
        I need a LIFE!!
        • Sep 2012
        • 23518

        It's called portchannel on Cisco, and you can aggregate up to 8 ports, even 8 x 10Gb port. You can have up to 8 more ports for standby. And you can also trunk VLANs over them.

        But these aggregated ports still transmit at the speed of one port per application. An algorithm based on several factors including TCP/UDP port numbers determines which channel is used. So even just a single PC driving traffic will utilize multiple switch ports in the group, but not for a single session/application (like say a single FTP transfer)
        Click here for my iTrader Feedback thread: https://www.calguns.net/forum/market...r-feedback-100

        Comment

        • #5
          Satex
          CGN/CGSSA Contributor
          CGN Contributor
          • Feb 2006
          • 3501

          Originally posted by Ninety
          Curious if there are switches out there that have dual uplink ports to help speed up transmission.
          Yes, most business class switches support port bonding.

          Comment

          • #6
            Ninety
            Veteran Member
            • Nov 2012
            • 4062

            Thanks.

            Trying to bid a rather large IP camera job. Multi level

            Sent from my HTC Desire 626s using Tapatalk
            NRA Member
            The Constitution does not bestow wisdom. It's up to the body politic to be wise. -Patriot
            All that is required for evil to prevail is for good men to do nothing.
            -Edmund Burke
            I'd much rather go to my grave never needing my gun, than go there wishing I had it.
            - Phil Dalmolin

            The Battle of Athens was illegal too.

            Comment

            • #7
              NiMiK
              Senior Member
              • Jun 2011
              • 501

              LACP will help but it will not increase your throughput since a single stream will not split the packets through different interfaces.

              Comment

              • #8
                lazyworm
                Senior Member
                • Jan 2006
                • 1641

                Originally posted by Ninety
                Thanks.

                Trying to bid a rather large IP camera job. Multi level

                Sent from my HTC Desire 626s using Tapatalk
                You'd really need to do your math on this. How many cameras? What resolution? What compression algorithm? How "busy" in front of the cameras? What is the min/avg/max bandwidth requirement for each?

                Then get a big enough pipe for the uplink.

                port bonding can be problematic, might be easier to get a 10gb switch.

                Comment

                • #9
                  Ninety
                  Veteran Member
                  • Nov 2012
                  • 4062

                  Originally posted by lazyworm
                  You'd really need to do your math on this. How many cameras? What resolution? What compression algorithm? How "busy" in front of the cameras? What is the min/avg/max bandwidth requirement for each?

                  Then get a big enough pipe for the uplink.

                  port bonding can be problematic, might be easier to get a 10gb switch.
                  That's what I was trying to figure out.
                  Running homeruns from NVR to camera isn't going to work. It might but I'm not sure. Still need to walk it.

                  I was thinking a Poe switch on every floor.

                  System is 32 4.1 MP cameras. H.264
                  Not sure on the other details. Some will be parking lot some will be offices and hallways .

                  Might use some 3 MP cameras in smaller areas.. maybe some 6MP in others



                  Sent from my HTC Desire 626s using Tapatalk
                  NRA Member
                  The Constitution does not bestow wisdom. It's up to the body politic to be wise. -Patriot
                  All that is required for evil to prevail is for good men to do nothing.
                  -Edmund Burke
                  I'd much rather go to my grave never needing my gun, than go there wishing I had it.
                  - Phil Dalmolin

                  The Battle of Athens was illegal too.

                  Comment

                  • #10
                    lazyworm
                    Senior Member
                    • Jan 2006
                    • 1641

                    Originally posted by Ninety
                    That's what I was trying to figure out.
                    Running homeruns from NVR to camera isn't going to work. It might but I'm not sure. Still need to walk it.

                    I was thinking a Poe switch on every floor.

                    System is 32 4.1 MP cameras. H.264
                    Not sure on the other details. Some will be parking lot some will be offices and hallways .

                    Might use some 3 MP cameras in smaller areas.. maybe some 6MP in others



                    Sent from my HTC Desire 626s using Tapatalk

                    google came to the rescue, quick search found this: http://stardot.com/bandwidth-and-storage-calculator

                    Looks like roughly 12.8Mbps per camera (H.264, high resolution, 5MP)
                    But in short, 1gig ports should be plenty for your application.

                    Comment

                    • #11
                      d4v0s
                      Senior Member
                      • Aug 2010
                      • 1661

                      Good work so far in this thread. Common part that's overlooked is the bandwidth of the people looking at these cameras. In my world I have 4 people in different sites wanting to access 40+ cameras. And they love the tacticool look of having 16-24 cameras per screen.

                      But I had to get it down to 9 cameras per view, and logically seperate them to keep the bandwidth low coming out of the server.
                      Originally posted by Franklincollector
                      It was administered with a toothpick and placed on a street taco.

                      Comment

                      • #12
                        Ninety
                        Veteran Member
                        • Nov 2012
                        • 4062

                        Originally posted by d4v0s
                        Good work so far in this thread. Common part that's overlooked is the bandwidth of the people looking at these cameras. In my world I have 4 people in different sites wanting to access 40+ cameras. And they love the tacticool look of having 16-24 cameras per screen.

                        But I had to get it down to 9 cameras per view, and logically seperate them to keep the bandwidth low coming out of the server.
                        That's my concern. I'm not entirely sure what they want.. and would rather over engineer it then have issues.

                        I just wasn't sure if I was going to run into issues running multiple switches back to the NVR.

                        Sent from my HTC Desire 626s using Tapatalk
                        NRA Member
                        The Constitution does not bestow wisdom. It's up to the body politic to be wise. -Patriot
                        All that is required for evil to prevail is for good men to do nothing.
                        -Edmund Burke
                        I'd much rather go to my grave never needing my gun, than go there wishing I had it.
                        - Phil Dalmolin

                        The Battle of Athens was illegal too.

                        Comment

                        • #13
                          Satex
                          CGN/CGSSA Contributor
                          CGN Contributor
                          • Feb 2006
                          • 3501

                          Originally posted by Ninety
                          Thanks.

                          Trying to bid a rather large IP camera job. Multi level
                          Take into account that you will need switches with bonding/trunking capability on both sides of the link. since you are doing a IP video job, does the DVR have multiple Ethernet ports? It won't do you any good to trunk the backbone if the DVR can't handle it.

                          Comment

                          • #14
                            Ninety
                            Veteran Member
                            • Nov 2012
                            • 4062

                            NVR is commercial grade 32 port for cameras. I need to see what it has for the uplink side.

                            Has 384 Mbps throughput..

                            Sent from my HTC Desire 626s using Tapatalk
                            Last edited by Ninety; 05-19-2016, 5:46 PM.
                            NRA Member
                            The Constitution does not bestow wisdom. It's up to the body politic to be wise. -Patriot
                            All that is required for evil to prevail is for good men to do nothing.
                            -Edmund Burke
                            I'd much rather go to my grave never needing my gun, than go there wishing I had it.
                            - Phil Dalmolin

                            The Battle of Athens was illegal too.

                            Comment

                            • #15
                              lazyworm
                              Senior Member
                              • Jan 2006
                              • 1641

                              Originally posted by Ninety
                              NVR is commercial grade 32 port for cameras. I need to see what it has for the uplink side.

                              Has 384 Mbps throughput..

                              Sent from my HTC Desire 626s using Tapatalk

                              eek! 384/32 = 12Mbps per camera. Based on the estimates above, you're right on the edge there. Assuming they did not marketing-ize the specs.

                              I'd worry that the NVR has no room to grow before the network switches.

                              Comment

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