In the Global Limits section, you can configure the following options:

  • Maximum Concurrent Connections: Limit the maximum number of simultaneous connections (combined total of TCP and UDP connections) allowed to the LoadMaster. Setting the limit to 0 disables this option. Valid values are 0 - 100000000.

Note: The maximum values are based on the hardware or Virtual LoadMaster that is in use and may vary per model.
  • Global Connections/s Limit: Limit the maximum number of connection attempts (per second). Setting the limit to 0 disables this option. Valid values are 0 - 1000000.

  • Global HTTP Requests/s Limit: Limit the maximum number of HTTP request attempts (per second). This has no effect on non-HTTP traffic. Setting the limit to 0 disables this option. Valid values are 0 - 1000000.

Note: The Global Limits take precedence over the other limits configured. For example, if you set the Client Concurrent Connection Limit to 5000 but the global Maximum Concurrent Connections limit is set to 50, then 50 is the limit that is enforced.
Note: If the total number of connections from all clients exceed the global limit, they will be dropped.

  • Global Bandwidth Limit: The global bandwidth limit. Setting the limit to 0 disables bandwidth limiting. Units are in kilobits/second. The minimum value is 16 kilobits/second (2 kilobytes/second). The maximum is 99999999 (which is just under 100 Gbit) but most Connection Managers have a bandwidth limit set in the license and the license bandwidth limit will be enforced if the value specified in the Global Bandwidth Limit field is greater than that. When calculating bandwidth, data in both directions are tracked and used in the calculation.

Note: You can also configure per-Virtual Service bandwidth limiting. For further details, refer to the Per-Virtual Service Bandwidth Limiting section. The lowest of the three possible limits (global, client, and Virtual Service) that is reached first is enforced. Note that the global limit is for all Virtual Services, the Virtual Service limit is for the current Virtual Service with multiple clients, and the client limit is for a single client.