Cisco Cisco Packet Data Gateway (PDG)
StarOS Tasks
Subsystem Tasks ▀
ASR 5500 System Administration Guide, StarOS Release 18 ▄
377
Task
Description
Function
srb
Standard Routing
Database
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.
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.
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.
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.
session controller performs the loading.
Platform Processes
Table 48. Platform Process Tasks
Task
Description
Function
afctrl
ASR 5500 Fabric
Controller
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.
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
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.
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.
afio
ASR 5500 Fabric I/O
Driver
Driver
Responsible for the direct configuration of the fabric chipset. afio supports non-
messenger interprocess communication (IPC) with the local afmgr and with other local
afio instances
messenger interprocess communication (IPC) with the local afmgr and with other local
afio instances
connproxy
TCP/SCTP
Connection proxy
Connection proxy
Allows applications on any card to share the same TCP/SCTP connection to the same
remote endpoint instead of opening a new connection for each application on the card.
remote endpoint instead of opening a new connection for each application on the card.
cspctrl
Card-Slot-Port
Controller
Controller
Manages physical chassis components.
cssctrl
Content Server
Selection (CSS)
Controller
Selection (CSS)
Controller
Maintains all global CSS properties which include a list of CSS servers that can be
bound to a service in a context.
bound to a service in a context.
CSS defines how traffic will be handled based on the “content” of the data presented
by or sent to a mobile subscriber. CSS encompasses features such as load balancing,
NAT, HTTP redirection, DNS redirection.
The content server (services) can be either external to the platform or integrated within
the platform. External CSS servers are configured via the Context Configuration mode
css server command.
by or sent to a mobile subscriber. CSS encompasses features such as load balancing,
NAT, HTTP redirection, DNS redirection.
The content server (services) can be either external to the platform or integrated within
the platform. External CSS servers are configured via the Context Configuration mode
css server command.
The CSS Controller does not create CSS Managers. CSS Managers are stopped and
started by VPN Managers. A CSS Manager is automatically created for each context.
started by VPN Managers. A CSS Manager is automatically created for each context.