Users Manual

ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 5-17
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
1 This option provides an external PIESD client interface when one or
more dynamic PDP contexts are specified and PPPoE is the means of
accessing the SATCOM network. The following control functions are
provided:
a PPPoE with AC Service names: To set up primary contexts
b Out of band control via AT command: To set up secondary or
modify primary contexts
c SNMP: To communicate operational and link status PPPoE, can
support either:
(1) Up to 11 PDP contexts, (actual number defined by ORT)
for allocation as either:
– Data only;
– A combination of data and voice. When voice service
is supported, two of the ORT number of PDP
contexts are dedicated to voice, (one for control, the
other for the service).
(2) INMARSAT X-Stream service. The Inmarsat X-stream
service provides for streaming rates above 128 kbps.
The rate provided will be dependent on elevation angle,
link conditions and availability. The service must be
explicitly enabled via ORT. The X-Stream streaming
service cannot be mixed with SBB streaming contexts or
voice.
d The PIESD:
(1) Connects PPPoE sessions to the associated Tunneled
PPP Transport over Ethernet (TPToE);
(2) Prevents leakage of data between sessions by mapping
individual user traffic to individual sessions.
e The PIESD provides the user interface with the gateway IP
address based on the ORTas follows:
(1) Using the fixed host IP address and subnet mask
provided by the ORT;
(2) When PIESD is ORT-configured as a DHCP server it
also does the following:
– Assigns user IP address derived from the base
address and range provided by the ORT;
– Employ a NAT service to forward user traffic over the
air.
2 The PIESD sends session control commands to the CC via BCL over
Ethernet.
C. Satellite Handover
(1) If a new cabin data session is requested during handover, the PIESD accepts the data
session but postpones the data session initiation to the ground until:
DRAFT
3rd rvw Draft as of:
29 January, 2020