Motorola APEX1000 Installation And Operation Manual page 46

In RTSP/MHA Paired Port Assignment mode, the APEX is logically split across physical
port boundaries. The APEX initiates two VREP sessions, one for each logical device.
Sessions are distinguished by VREP Device ID and NextHopServer Port Number
parameters, and each session advertises a different device name and port. Within these
sessions, the APEX reports the set of QAMs allocated to each logical device using the
mapping shown in the previous figure and in the figure below. Out of these, only QAMs
allocated to session control are reported.
The I/O mapping is still any to any from the perspective of the ERM, which sees two 24
QAM devices, instead of a single 48 QAM device:
Device "A"
Module 1
RF1
Transitioning Between Modes
As session-controlled QAM capacity on the APEX increases and decreases, you can
transition the APEX into and out of RTSP Paired Port Assignment mode.
•
The APEX is able to transition to paired port mapping mode from a single GigE pair
reporting mode—or from startup—without rebooting.
•
The APEX can transition from paired port mapping mode to a single GigE pair
reporting mode.
All active switched sessions are withdrawn between transitions, as the device logically
reconfigures itself, reporting this configuration change to the ERM.
RPC Mode
When configuring the APEX1000 for RPC mode, you must provide the input-to-output
mapping through the EM or SDM configuration screens. As is the case with RTSP mode,
you should avoid assigning more than 24 QAMs to a single GigE input pair.
Note: There are no updated options to support over 24 QAMs in RPC mode; as this
mode is natively supported, you need only assign 24 or fewer QAMs to each GigE input
pair.
Overview • Maximizing Throughput in SDV Operation
APEX1000 All-Purpose Edge QAM Software Version 2.4.x • Installation and Operation Manual
573408-001-a
Module 2
RF2 RF3
Device "B"
Module 3
RF4 RF5
B
RF6
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