Table of Contents
Advertisement
Multilink/Mode
Write security: 3; Read security: 5
When this item is set to On (def), Multilink PPP is negotiated
with the PPP peer. When Off, the Express L128T S/T will only
allow one B-channel for this connection.
Multilink/Fragment
Write security: 3; Read security: 5
When this item is set to Yes (def), the Express L128T S/T will
split outgoing packets greater than 128 bytes into two Multilink
fragments and simultaneously transmit them one per B-channel.
The receiving PPP peer will then reassemble them. This
decreases the transport delay. However, some legacy equipment
might have trouble handling fragmented packets, in which case
this option should be set to No.
Multilink/BACP
Write security: 3; Read security: 5
The Bandwidth Allocation Control Protocol (BACP) and Band-
width Allocation Protocol (BAP) are used to enhance Multilink
PPP. Together, they allow phone numbers to be exchanged when
more bandwidth is needed and member links to be dropped
when bandwidth is to be decreased. When this item is set to On,
BACP is negotiated with the PPP peer. When Off, the Express
L128T S/T will not run BACP/BAP but dynamic bandwidth can
still be operated.
Certain rules for bandwidth-on-demand apply, depending on
whether BACP is negotiated. If BACP is not negotiated, the orig-
inator of the call will perform the dynamic bandwidth adjust-
ments on its own. If BACP is negotiated, the decisions are made
on either side but the call is always from the originator.
PPP/Compression
Write security: 3; Read security: 5
The Express L128T S/T uses LZS
known as STAC) for data compression. The Ascend Communications
61202070L3-20
technology from hi/fn
®
Express L128T S/T User Manual
Chapter 3. Terminal Menu Operation
TM
(formerly
3-49
Advertisement
Table of Contents
Troubleshooting
