Cisco ASR 5000 Administration Manual page 411

StarOS Tasks
Task
a11mgr
aaamgr
aaaproxy
Description Function
A11 Manager Created by the Session Controller for each context in which
a PDSN service is configured.
Receives the R-P sessions from the PCF and distributes them
to different Session Manager tasks for load balancing.
Maintains a list of current Session Manager tasks to aid in
system recovery.
The A11 Manager task is also known as the Signaling
De-multiplexing task (SDT).
With session recovery (SR) enabled, this demux manager is
usually established on one of the CPUs on the first active
packet processing card.
Authorization, Paired with Session Managers.
Authentication, and
Performs all AAA protocol operations and functions for
Accounting (AAA)
subscribers and administrative users within the system.
Manager
Acts as a AAA client to AAA servers.
Manages GTP Prime (GTP') messaging with charging
gateway functions (CGFs).
Multiple AAA Managers can run on a single CPU and/or can
be distributed throughout any CPU present in the system.
AAA operations for the CLI are done through a AAA
Manager running on the active management card.
Authorization, Starts whenever the Global Configuration mode gtpp
Authentication, and single-source command is configured.
Accounting (AAA)
When GTPP single-sourcing is enabled, aaaproxy generates
Proxy Manager
requests to the accounting server using a single UDP source
port number, instead of having each AAA Manager generate
independent requests with unique UDP source port numbers.
Runs on a demux card when session recovery is enabled. If
session recovery is not enabled, the Global Configuration
mode require demux card command starts aaaproxy on the
designated demux card.
Writes CDRs to a file in its VRAM-disk. The enqueued CDRs
are then periodically synchronized with a HDD for transfer.
ASR 5000 System Administration Guide, StarOS Release 21.1
Session Subsystem
383