Cisco Cisco Tunnel Terminating Gateway (TTG)

 

 

 

 

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.

 

 sgtpcmgr

 

SGSN GPRS Tunneling 
Protocol Control 
message Manager

 

Created by the Session Controller for each VPN context in which an SGSN service is 
configured.

 

Terminates Gn/Gp and GTP-U interfaces from peer GGSNs and SGSNs for SGSN 
Services.

 

Terminates GTP-U interfaces from RNCs for IuPS Services.

 

Controls standard ports for GTP-C and GTP-U.

 

Processes and distributes GTP-traffic received from peers on these ports.

 

Performs all node level procedures associated with Gn/Gp interface.

 

With session recovery (SR) enabled, this demux manager is usually established on one 
of the CPUs on the first active demux packet processing card.

 

 srb

 

Standard Routing 
Database

 

Eight srbs are created by the Session Controller when Content Filtering in the Enhanced 
Charging Service is enabled. A minimum of two packet processing cards are required to 
initiate these eight tasks.

 

Receives the static database from the session controller. Each srb task loads two 
database volumes (one primary and one secondary). The srb task also stores the static 
DB.

 

Rates and categorizes the URL based on the DB volumes and CSI (Category Set Index) 
stored on it.

 

Performs peer loading in case its peer fails. If both the srb task and its peer fail, the 
session controller performs the loading.

 

 

 

 

 

afctrl

 

ASR 5500 Fabric 
Controller 

 

Responsible for the overall management of the system fabric. Manages the pool of 
Rendezvous Destinations and coordinates fabric recovery by the afmgr proclets after a 
fault. A single afctrl instance runs on the active MIO/UMIO only.

 

afmgr

 

ASR 5500 Fabric 
Manager 

 

Responsible for the management of fabric resources on a particular card. There is one 
afmgr on every CPU that is responsible for one or more fabric access processors (FAPs) or 
fabric elements (FEs). afmgr supports recovery but not migration.