Lucent Technologies PortMaster Manual Do Utilizador
Setting Multiline Load Balancing
8-12
PortMaster Configuration Guide
The following settings are used to configure load balancing and define when additional
lines to this location are dialed.
lines to this location are dialed.
Setting the Maximum Number of Dial-Out Ports
To configure load balancing, you must define the number of dial-out ports that can be
used to dial and establish a connection with this location. This setting creates a pool of
ports that can be used at the same time to establish a connection with this location.
used to dial and establish a connection with this location. This setting creates a pool of
ports that can be used at the same time to establish a connection with this location.
If the maximum number of ports is set to 0, no connection with this location is
established. If the maximum number of ports is set to any number greater than one, the
high-water mark is used to determine when additional connections are established with
this location.
established. If the maximum number of ports is set to any number greater than one, the
high-water mark is used to determine when additional connections are established with
this location.
When more than one line is open to a given location, the PortMaster balances the load
across each line. When the ports are idle for the time specified by the set location
idletime command (see “Setting the Idle Timer” on page 8-10), all ports used for that
connection are timed out simultaneously.
across each line. When the ports are idle for the time specified by the set location
idletime command (see “Setting the Idle Timer” on page 8-10), all ports used for that
connection are timed out simultaneously.
To set the maximum number of dial-out ports for a location, use the following
command:
command:
Command> set location Locname maxports Number
Setting Bandwidth-on-Demand
Bandwidth-on-demand determines when an additional line to this location should be
established. The PortMaster uses the high-water mark setting to configure bandwidth-
on-demand
established. The PortMaster uses the high-water mark setting to configure bandwidth-
on-demand
The high-water mark specifies the number of bytes of network traffic that must be
queued before the PortMaster opens an additional connection. The PortMaster examines
the queue several times a minute to determine if the high-water mark has been
reached.
queued before the PortMaster opens an additional connection. The PortMaster examines
the queue several times a minute to determine if the high-water mark has been
reached.
If you set a very small threshold number, the PortMaster quickly opens the maximum
number of ports you specified for this location. When you are deciding on a threshold,
keep in mind that interactive traffic from login users queues a relatively small number
of bytes, only several hundred. However, network users doing file transfers can queue
several thousand bytes of traffic. These activities should be considered before you set
your dial-out threshold.
number of ports you specified for this location. When you are deciding on a threshold,
keep in mind that interactive traffic from login users queues a relatively small number
of bytes, only several hundred. However, network users doing file transfers can queue
several thousand bytes of traffic. These activities should be considered before you set
your dial-out threshold.