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ChadBigIP_14663's avatar
ChadBigIP_14663
Icon for Nimbostratus rankNimbostratus
Aug 20, 2013

Max Connections per VIP

Is there a Maximum Number of Connections that a VIP can have?

 

I have a LTM-3400 and wanted to know what the Max of Connections per VIP was.

 

I recently consolidated from 50 VIP's into 1 VIP for easier administration, so now we are just using 1 IP Address for Virtual Hosting w/ Apache rather than having 50 VIP's but now I just want to make sure there are not going to be any bottlenecks in regards to Active Port 80 Connections going from 50 VIP's to 1 VIP.

 

application delivery
performance
  • ChadBigIP_14663's avatar
    ChadBigIP_14663
    Icon for Nimbostratus rankNimbostratus
    Aug 20, 2013

    When you say limitation of the box and bandwidth... do you mean my webservers and uplink connection from my data center?

     

    I am just wondering if there was a VIP Connection Limit for PORT 80 Connections on a LTM-3400.....

     

    How many simultaneous connections can 1 VIP on a LTM-3400 handle?

     

  • Kevin_Stewart's avatar
    Kevin_Stewart
    Icon for Employee rankEmployee
    Aug 20, 2013

    An LTM-3400 has a max throughput of 1Gbps. That's about 55K and 110K connections per second, layer 7 and layer 4 respectively. That is the aggregate limitation of the box across all VIPs. So an LTM-3400 with a single VIP can handle roughly 1Gbps through that one VIP.

     

  • afedden_1985's avatar
    afedden_1985
    Icon for Cirrus rankCirrus
    Aug 20, 2013

    As Kevin stated its a BOX limit. The LTM 3600 stats I have show it can do 4M current connections and 2 Gbs per second of throughput. I don't have ant data for the LTM 3400. But those numbers depend on things like L7 or L4 connections? SSL termination for HTTPS etc?

     

  • ChadBigIP_14663's avatar
    ChadBigIP_14663
    Icon for Nimbostratus rankNimbostratus
    Aug 20, 2013

    My traffic is http port 80 web only...

     

    My LTM-3400 has 2GB of memory...

     

    So in relation to the LTM-3600, my LTM-3400 could probably handle upwards of 2M concurrent connections I presume (with my bottleneck my Upstream Provider & My Webservers of course)....

     

    I am just trying to isolate what the LTM-3400 can handle on 1 VIP in relation to concurrent connections over port 80...

     

    Thanks!

     

  • Rinish_R_260188's avatar
    Rinish_R_260188
    Icon for Nimbostratus rankNimbostratus
    Jan 17, 2019

    How do we check current connection status?

     

    We have an issue for one of the regular application. Randomly users are getting page not available error . But when they refresh it will load.