ZyXEL Communications 128IMH manual Editing PPP Options

Remote Node Configuration

Prestige 128IMH ISDN Modem/ Router/Hub

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

The Target Utility specifies the line utilization range at which you want the Prestige to add or subtract bandwidth. The range is 30 to 64 kbps (kilobits per second). The parameters are separated by a ‘-’. For example, ‘30-60’ means the add threshold is 30 kbps and subtract threshold is 60 kbps. The Prestige performs 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 inclu ded to determine if a link should be added or dropped. Transmit will only use outgoing traffic to make this determination and Receive will only use incoming traffic to make this determination.

If, after making the call to bring up a second channel, the second channel does not succeed in joining the Multilink Protocol bundle (because the remote device does not recognize the second call as coming from the same device), the Prestige will hang up the second call and continue with the first channel alone.

The BOD configuration is through Menu 11.2 - Remote Node PPP Options.

4.1.6 Editing PPP Options

To edit the remote node PPP Options, move the cursor to the Edit PPP Options field in Menu

11.1- Remote Node Profile, and use the space bar to select Yes. Press Enter to open Menu 11.2, as shown below.

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Menu 11.2 - Remote Node PPP Options

Encapsulation= Standard PPP

Compression= No

Multiple Link Options:

BOD Calculation= Transmit or Receive

Base Trans Rate(Kbps)= 64

Max Trans Rate(Kbps)= 64

Target Utility(Kbps)= 32 -48

Add Persist(sec)= 5

Subtract Persist(sec)= 5

Press ENTER to CONFIRM or ESC to CANCEL: Press Space Bar to Toggle.