ZyXEL Communications 128MH Bandwidth on Demand, Remote Node Configuration for LAN-to-LAN

Models: 128MH

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5.1.2 Bandwidth on Demand

Prestige 128MH

PSTN Router/Hub

 

Table 5-1.

Remote Node Profile Menu Fields for Dial-up Line Applications (continued)

 

 

 

 

Field

 

Description

Options

 

 

 

 

Session Option:

 

This value specifies the number of idle seconds that

Default=300sec

 

 

elapses before the Remote Node is automatically

 

Idle Timeout (sec)

disconnected. Idle seconds is the period of time where

 

 

 

no data is passed between the Remote Node and your

 

 

 

Prestige. Administrative packets such as RIP are not

 

 

 

counted as data. The default is 300 seconds (5

 

 

 

minutes).

 

 

 

 

Once you have completed filling in Menu 11.1.1 - Remote Node Profile, press [Enter] at the message

[Press ENTER to Confirm … ] to save your selections, or press [Esc] at any time to cancel your selections.

 

 

 

 

5.1.2 Bandwidth on Demand

The Bandwidth on Demand (BOD) feature allows you to bundle two or three WAN Ports in one connection. The additional ports are added and subtracted dynamically according to traffic demand. The Prestige uses the Bandwidth Allocation Control Protocol (BACP) and the Multilink Protocol (MP) to implement bandwidth on demand.

The configuration of bandwidth on demand is based on the Minimum and Maximum Ports of a Remote Node. If Minimum and Maximum Ports are 1, BOD is disabled. Otherwise, BOD is enabled.

When bandwidth on demand is enabled, a second port will be brought up if traffic on the initial channel is higher than the high Target Utility number (for second port) for longer than the specified Add Persist value. Similarly, the second port will be dropped if the traffic level falls below the low Target Utility number for longer than the Subtract Persist value.

The Target Utility for a second port specifies the line utilization range at which you want your Prestige to add or subtract bandwidth. The parameters are separated by a -. For example, 10-20 means the add threshold is 20 kbps and the subtract threshold is 10 kbps. Your Prestige will perform bandwidth on demand only if it initiates the call. Addition and subtraction are based on the value set in the BOD Calculation field. If this field is set to Transmit or Receive, then traffic in either direction will be calculated to determine if a link should be added or dropped. Transmit will

5-8Chapter 5 Remote Node Configuration for LAN-to-LAN

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ZyXEL Communications 128MH user manual Bandwidth on Demand, Remote Node Configuration for LAN-to-LAN