Function
Description
Task
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.
ASR 5500 Fabric
Manager
afmgr
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
ASR 5500 Fabric I/O
Driver
afio
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.
TCP/SCTP Connection
proxy
connproxy
Manages physical chassis components.
Card-Slot-Port
Controller
cspctrl
Maintains all global CSS properties which include a list of
CSS servers that can be bound to a service in a context.
Content Server Selection
(CSS) Controller
cssctrl
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.
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.
Spawned by the VPN Manager within a StarOS context.
Content Server Selection
(CSS) Manager
cssmgr
Manages the keepalives to a CSS server within the specific
VPN context.
Fetches the CSS related information for a subscriber
If a CSS server goes down, the cssmgr task reprograms the
NPUs to by-pass the service or redistribute the data among
the rest of the servers in the service.
Spawns daughter card managers during system initialization
and monitors daughter card managers during system steady
state execution. It also spawns daughter card managers
whenever a daughter card manager task fails.
Daughter Card
Controller
[ASR 5x00 only]
dcardctrl
ASR 5000 System Administration Guide, StarOS Release 21.1
393
StarOS Tasks
Platform Processes
Summary of Contents for ASR 5000
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