Cisco ASR 5000 Administration Manual page 419

StarOS Tasks
Task
mmemgr
pccdemux
pccmgr
Description Function
Mobility Management Starts when an MME service configuration is detected. There
Entity Manager can be multiple instances of this task for load sharing. All
mmemgrs will have all the Active MME Services configured
and will be identical in configuration and capabilities.
Runs the SCTP protocol stack.
Handles the SCTP associations.
Maintains TA List.
Manage eNodeB databases.
Provides nodal functions for S1-MME protocol.
With session recovery (SR) enabled, this demux manager is
usually established on one of the CPUs on the first active
packet processing card.
Policy and Charging Started as part of PCC service creation procedure. There is
Control Bindmux only one instance of BindMux MGR in the chassis.
Manager
Handles multiplexing of the sessions across the available
pccmgrs along with the session binding functions
Monitors load on pccmgrs.
Distributes incoming IP-CAN connections across pccmgrs
in the system.
Performs session binding; binds IP-CAN/Gateway session
with the AF-Session.
Ensures all messaging for an IMSI across various interfaces
is directed towards the selected pccmgr.
Remains aware of all the active PCC services in the system.
With session recovery (SR) enabled, this demux manager is
usually established on one of the CPUs on the first active
packet processing card.
Policy and Charging pccmgr is part of a Session Manager instance.
Control Bindmux
Handles all PCRF service sessions.
Manager
Interfaces with PCC-Core while processing different events
associated with individual subscriber sessions.
Maintains subscriber information while applying business
logic.
Creates calline and corresponding APN session for each
subscriber.
ASR 5000 System Administration Guide, StarOS Release 21.1
Session Subsystem
391