ADTRAN Express L128, User Manual

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Chapter 3: Terminal Menu Operation and Structure
61202.070L1-1 Express L128/L128T User Manual 73
Probe/Update Window
Write security: 3; Read security: 5
This is the time the Express L128/L128T stays connected during a probe. Nor-
mally route and service tables are exchanged immediately after connection.
However, some routers could wait until their regular RIP or SAP time period
has been reached before they advertise their routes or services to the Express
L128/L128T. The value is in seconds and ranges from 5 to 180. The default is
5 seconds and assumes that a routing update is received upon connection.
Connection List/PPP
The Express L128/L128T supports the IETF standards for the Point-to-Point
Protocol. The PPP state machine running in the Express L128/L128T can be
fine-tuned to support many applications that can be employed. The config-
urable items under this menu can be changed from their default values for spe-
cial cases.
PPP/Multilink
Multilink PPP allows the two B-channels to be used together for increased
bandwidth.
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 L128/L128T 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 L128/L128T will split outgoing
packets greater than 128 bytes into two Multilink fragments and simulta-
neously transmit them one per B-channel. The receiving PPP peer will then re-
assemble 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 .