Bandwidth

To set the Bandwidth configuration options, including target transfer rates, transfer policies, and vlinks, click Configuration and modify values for the Global, and Users under their respective Bandwidth tabs. Select Override in the option's row to set an effective value.

Bring up the Server Configuration window Bandwidth configuration options.

The following table lists all configuration options:

Field Description Values Default
Incoming Target Rate Cap (Kbps) Set the Target Rate Cap for incoming transfers. The Target Rate Cap is the maximum target rate that a transfer can request, in kilobits per second. No transfer may be adjusted above this setting, at any time. The default setting of unlimited signifies no Target Rate Cap. Clients requesting transfers with initial rates above the Target Rate Cap will be denied. positive integer unlimited
Incoming Target Rate Default (Kbps) Set the initial rate for incoming transfers, in kilobits per second. Users may be able to modify this rate in real time, if allowed. This setting is not relevant to transfers with a Policy of fixed. positive integer 10000
Incoming Target Rate Lock Set to false to allow users to adjust the transfer rate once an incoming transfer is started. Set to true to prevent real-time modification of the transfer rate. true or false false
Incoming Minimum Rate Cap (Kbps) Set the Minimum Rate Cap for incoming transfers. The Minimum Rate Cap is a level, specified in kilobits per second, below which an incoming transfer will not slow, despite network congestion or physical network availability. The default value of unlimited effectively turns off the Minimum Rate Cap. positive integer or unlimited unlimited
Incoming Minimum Rate Default (Kbps) Set the initial minimum rate for incoming transfers, in kilobits per second. Users may be able to modify this rate in real time, if allowed. This setting is not relevant to transfers with a Policy of fixed. positive integer 0
Incoming Minimum Rate Lock Set to false (default) to allow users to adjust the minimum transfer rate once an incoming transfer is started. Set to true to prevent real-time modification of the minimum transfer rate. This setting is not relevant to transfers with a Policy of Fixed. true or false false
Incoming Bandwidth Policy Default Set the default Bandwidth Policy for incoming transfers. The default policy value may be overridden by client applications initiating transfers.
  • fixed – Attempts to transfer at the specified target rate, regardless of the actual network capacity. This policy transfers at a constant rate and finishes in a guaranteed time. This policy typically occupies most of the network's bandwidth, and is not recommended in most file transfer scenarios. In fixed mode, a maximum (target) rate value is required.
  • high – Monitors the network and adjusts the transfer rate to fully utilize the available bandwidth up to the maximum rate. When congestion occurs, a it transfers at a rate twice of a session with fair policy. In this mode, both the maximum (target) and the minimum transfer rates are required.
  • fair – Monitors the network and adjusts the transfer rate to fully utilize the available bandwidth up to the maximum rate. When other types of traffic build up and congestion occurs, it shares bandwidth fairly by transferring at an even rate. In this mode, both the maximum (target) and the minimum transfer rates are required.
  • low – Similar to fair mode, the low policy uses the available bandwidth up to the maximum rate, but is much less aggressive when sharing bandwidth with other network traffic. When congestion builds up, the transfer rate is reduced to the minimum rate until other traffic retreats.
fixed, high, fair / regular, low, or any fair
Incoming Bandwidth Policy Allowed Set the allowed Bandwidth Policy for incoming transfers. Aspera transfers use fixed, high, fair and low policies to accommodate network-sharing requirements. When set to any, the server will not deny any transfer based on policy setting. When set to high, transfers with a Policy of high and less aggressive transfer policies (e.g. fair or low) will be permitted. When set to fair, transfers of fair and low will be permitted, while fixed transfers will be denied. When set to low, only transfers with a Bandwidth Policy of low will be allowed. fixed, high, fair / regular, low, or any any
Incoming Bandwidth Policy Lock Set to false (default) to allow users to adjust the Bandwidth Policy once an incoming transfer is started. Set to true to prevent real-time modification of the Bandwidth Policy. true or false false
Outgoing Target Rate Cap (Kbps) Set the Target Rate Cap for outgoing transfers. The Target Rate Cap is the maximum target rate that a transfer can request, in kilobits per second. No transfer may be adjusted above this setting, at any time. The default setting of unlimited signifies no Target Rate Cap. Clients requesting transfers with initial rates above the Target Rate Cap will be denied. positive integer unlimited
Outgoing Target Rate Default (Kbps) Set the initial rate for outgoing transfers, in kilobits per second. Users may be able to modify this rate in real time, if allowed. This setting is not relevant to transfers with a Policy of Fixed. positive integer 10000
Outgoing Target Rate Lock Set to false (default) to allow users to adjust the transfer rate once an outgoing transfer is started. Set to true to prevent real-time modification of the transfer rate. true or false false
Outgoing Minimum Rate Cap (Kbps) Set the Minimum Rate Cap for outgoing transfers. The Minimum Rate Cap is a level specified in kilobits per second, below which an outgoing transfer will not slow, despite network congestion or physical network availability. The default value of Unlimited effectively turns off the Minimum Rate Cap. positive integer unlimited
Outgoing Minimum Rate Default Set the initial minimum rate for outgoing transfers, in kilobits per second. Users may be able to modify this rate in real time, if allowed. This setting is not relevant to transfers with a Policy of Fixed. positive integer 0
Outgoing Minimum Rate Lock Set to false (default) to allow users to adjust the minimum transfer rate once an outgoing transfer is started. Set to true to prevent real-time modification of the minimum transfer rate. This setting is not relevant to transfers with a Policy of Fixed. true or false false
Outgoing Bandwidth Policy Default Set the default Bandwidth Policy for outgoing transfers. The default policy value may be overridden by client applications initiating transfers.
  • fixed – Attempts to transfer at the specified target rate, regardless of the actual network capacity. This policy transfers at a constant rate and finishes in a guaranteed time. This policy typically occupies most of the network's bandwidth, and is not recommended in most file transfer scenarios. In fixed mode, a maximum (target) rate value is required.
  • high – Monitors the network and adjusts the transfer rate to fully utilize the available bandwidth up to the maximum rate. When congestion occurs, a it transfers at a rate twice of a session with fair policy. In this mode, both the maximum (target) and the minimum transfer rates are required.
  • fair – Monitors the network and adjusts the transfer rate to fully utilize the available bandwidth up to the maximum rate. When other types of traffic build up and congestion occurs, it shares bandwidth fairly by transferring at an even rate. In this mode, both the maximum (target) and the minimum transfer rates are required.
  • low – Similar to fair mode, the low policy uses the available bandwidth up to the maximum rate, but is much less aggressive when sharing bandwidth with other network traffic. When congestion builds up, the transfer rate is reduced to the minimum rate until other traffic retreats.
fixed, high, fair, low fair
Outgoing Bandwidth Policy Allowed Set the allowed Bandwidth Policy for outgoing transfers. Aspera transfers use fixed, high, fair and low policies to accommodate network-sharing requirements. When set to any, the server will not deny any transfer based on policy setting. When set to high, transfers with a Policy of high and less aggressive transfer policies (e.g. fair or low) will be permitted. When set to fair, transfers of fair and low will be permitted, while fixed transfers will be denied. When set to low, only transfers with a Bandwidth Policy of low will be allowed. fixed, high, fair (regular), low, or any any
Outgoing Bandwidth Policy Lock Set to false (default) to allow users to adjust the Bandwidth Policy once an outgoing transfer is started. Set to true to prevent real-time modification of the Bandwidth Policy. true or false false