
Configuring PPP Services
2-22 117360-A Rev. A
In addition to LQR packets, PPP periodically transmits echo-request packets
(when echo-request is enabled). If the peer transmits a user-specified number of
echo requests before receiving an echo reply from its peer router, the router
disables the link and restarts.
PPP Data Compression
The Bay Networks data compression feature lets you reduce line costs and
improve response times over wide area networks (WANs) running PPP.
Data compression eliminates redundancies in data streams. When you use
compression on your network, bandwidth efficiency improves, and you can
transmit more data over a given amount of network bandwidth.
Bay Networks data compression services for PPP include
• Software-based compression for all platforms and all serial interfaces
• Hardware-based data compression for PPP networks that use the octal
synchronous link module for the Backbone Node (BN
®
), using only FRE
®
-2
processors. Bay Networks provides hardware compression as an optional
daughterboard that attaches to the octal synchronous link module.
• Hardware-based data compression for PPP networks that use the octal
synchronous link module for the Access Stack Node (ASN), using any link
module. Bay Networks provides hardware compression as an optional
daughterboard.
You can use data compression on all PPP circuits, including multiline, multilink,
bandwidth-on-demand, dial-on-demand, and dial backup lines. You can use
compression separately on each member of a multilink bundle. When you use
compression on a bandwidth-on-demand, dial-on-demand, or dial backup circuit,
the data compression feature automatically configures or deletes compression as
lines are added to or removed from the circuit.
For complete descriptions of hardware and software data compression,
descriptions of compression parameters, and instructions for configuring
compression over a PPP interface, see Configuring Data Compression Services.
Note: Echo-requests are disabled by default and are in no way related to link
quality reporting.
Comentários a estes Manuais