Specifications

hg-07.fm
A31003-H3580-M103-2-76A9, 01-2009
HiPath 3000/5000 V8 - HG 1500 V8, Administrator Documentation
7-137
Nur für den internen Gebrauch
Explorers
Routing
Data Compression:
The STAC and MPPC compression algorithms are available for compressing PPP data pack-
ets. STAC is widely used in the UNIX world, while MPPC is the Microsoft alternative. Both al-
gorithms offer similar compression results. MPPC features a more robust resynchronization
mechanism to deal with packet loss and is the preferred option if transmission quality is low.
Please note that pre-compressed data (.ZIP files) and files containing binary data (for example,
audio/video files, *.exe files, etc.) cannot be compressed further and thereby transmitted quick-
er.
● STAC Data Compression: Specify whether STAC should be used for data compression.
● MPPC Data Compression: Specify whether MPPC should be used for data compression.
Address Translation:
● NAT: Specify whether the "Network Address Translation (NAT)" function should be disabled
or enabled. The active function supports the following protocols: TCP, UDP, and ICMP (only
in passive mode).
● IP Mapping: Specify whether the "IP Mapping" function should be disabled or enabled.
QoS Parameters of Interface:
● Bandwidth Control for Voice Connections: Bandwidth control prevents the transmission
rates available from being overbooked with voice connections within a multi-link connec-
tion. In other words, when header compression is active, a maximum of five voice connec-
tions (G.729/60 msec or G.723/60 msec) is permitted over a B channel. Select this check
box if you want to activate the "Bandwidth Control for Voice Connections" function. Only
voice connections with routes configured in the voice gateway are considered here (see
Section 7.5, "Voice Gateway").
● Bandwidth Used for Voice/Fax (%): Specify the percentage of bandwidth that should be
used for voice/fax connections. (see also Section 9.3, "Quality of Service (QoS)").
● QoS Capability of Peer: Enter the "Quality of Service (QoS)" that is supported by the other
party (Identical, DiffServ or IP Precedence). See also Section 9.3, "Quality of Service
(QoS)".
When all settings are complete, click Apply followed by OK in the confirmation mask (save the
new configuration status permanently with the Save icon in the control area).
An advisory is also displayed if you modified the contents of the PSTN Connection Type field
and must be confirmed with OK.
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A maximum of one of the two options should be activated because NAT and ad-
dress mapping cannot be set simultaneously.