Cisco ASR 5000 Series Administration Manual page 430

Session Subsystem
Task Description
gtpumgr GPRS Tunneling Protocol User
(GTP-U Manager
hamgr Home Agent (HA) Manager
hnbdemux Home NodeB (HNB) Demux
Manager
ASR 5500 System Administration Guide, StarOS Release 21.4
398
Function
Created by the Session Controller for each context in which a GTPU
service is configured. Supported for both GTPUv0 and GTPUv1
Maintains a list of the GTPU-services available within the context and
performs load-balancing (of only Error-Ind) for them.
Supports GTPU Echo handling.
Provides Path Failure detection on no response for GTPU echo.
Receives Error-Ind and demuxes it to a particular Session Manager.
Serves as the Default GTPU listener. GTPUMGR will process GTPU
packets with invalid TEID.
With session recovery (SR) enabled, this demux manager is usually
established on one of the CPUs on the first active packet processing card.
Created by the Session Controller for each context in which an HA service
is configured.
Receives Mobile IP sessions from the Foreign Agents (FAs) and distributes
them to different Session Manager tasks.
Maintains a list of current Session Manager tasks that aids in system
recovery.
Functions as the DemuxMgr – handles all the PMIP signaling packets.
Functions as the Demuxmgr for MIPv6/MIPv4 HA.
With session recovery (SR) enabled, this demux manager is usually
established on one of the CPUs on the first active packet processing card.
Started as part of HNB-GW service creation procedure. There is only one
hnbdemux in the chassis.
Distributes incoming Iuh connections to HNB Managers in the system.
Remains aware of all the active HNB-GW 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.
StarOS Tasks