Decrease in aggregated bandwidth when adding additional line

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  • #43106

    fenster
    Member

    Hi,

    I’ve got a zeroshell with 3 bonded VPN over dsl lines to a datacentre. Each are 10mb/s down and .6 mb/s up. When the vpns are bonded the combined speed is 23-25 mb/s down and 1.5 mbs up. The vpns are sent down static routes to avoid gateway issues. These VPNs are bridged at both ends to the LAN interfaces.

    The problem I am having is when I add a forth, identical line to the bond, the aggregted downstream drops to 10 – 11 mb/s but an upstream of 2 mb/s. With the three bonded lines the speed is an instant 23-25 meg which is great. I’d expect the fourth line to increase it to about 30meg

    I have changed the lines used in the bond (i.e. added the new line and removed a previous line) and when there are three dsls in the bond, the lines are always aggregating correctly, but when there are four lines the total speed is testing at only 11-12 mb/s. Please help me to get the true aggregated bandwidth as I cant find an explanation!

    Cheers,

    Fenster

    #51926

    rainmaker
    Member
    fenster wrote:
    Hi,

    I’ve got a zeroshell with 3 bonded VPN over dsl lines to a datacentre. Each are 10mb/s down and .6 mb/s up. When the vpns are bonded the combined speed is 23-25 mb/s down and 1.5 mbs up. The vpns are sent down static routes to avoid gateway issues. These VPNs are bridged at both ends to the LAN interfaces.

    The problem I am having is when I add a forth, identical line to the bond, the aggregted downstream drops to 10 – 11 mb/s but an upstream of 2 mb/s. With the three bonded lines the speed is an instant 23-25 meg which is great. I’d expect the fourth line to increase it to about 30meg

    I have changed the lines used in the bond (i.e. added the new line and removed a previous line) and when there are three dsls in the bond, the lines are always aggregating correctly, but when there are four lines the total speed is testing at only 11-12 mb/s. Please help me to get the true aggregated bandwidth as I cant find an explanation!

    Cheers,

    Fenster

    Quote:
    Am also having same issue with load balancing with the athlins’s patch.
    l have 8 20/1Mbps dsl lines .when l test each line l get 18/1 mbps but when load balancing the 8 lines l get 45Mbps max.
    Am using version 15 with athling’s patch.Dell xeon 3.0ghz,1G Ram and 120G harddrive.

    the network topology is

    Dsl lines in bridge mode to Zeroshell which is only doing load-balancing to Mikrotik hotspot server serving hotspot clients.

    Is there a way to achieve

    Persistence: Interface persistence is a technique which ensures that
    subsequent connections from a client are always routed over the same
    uplink interface.
    By Connection: Each connection is balanced independently.

    What is the max number of wan that can be load balanced efficiently?
    Any help is welcome.

    #51927

    jogrfe
    Member

    I have the same problem, i have 2 x 100mb connections balanced to datacenter, buth de bonding vpn onli have 40 mb

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