Cisco ASR 5000 Administration Manual page 423
Staros release 21.1
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Also See for ASR 5000:
- Installation manual (294 pages) ,
- Administration manual (159 pages) ,
- Installation procedure (8 pages)
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StarOS Tasks
Task
kvctrl
lagmgr
msgd
msgproxy
nscontrol
ntpd
rct
sct
sft
sshd
Description
Function
Key Value Controller
Central key value store (kvstore) function that runs on the
management card. Its primary function is to support recovery
and distribution functions.
Link Aggregation Group
Started by npuctrl on the demux card's primary CPU (ASR
Manager
5000) or MIO (ASR 5500) with a facility level between CSP
and npumgr to receive configuration/status notification from
[ASR 5x00 only]
npumgr and build global LAG database.
Exchanges control packets (LACP and Marker) over
configured physical ports with peers to reach agreement on
an aggregation of links.
Messenger Daemon
Implements the Name Service and related functions for the
internal message passing system.
Message Proxy
The Messenger Proxy process handles broadcast messages
send from any single application (referred to as a client) to
any facility which has one instance per thread (referred to as
the Target Facility).
One msgproxy task runs on each CPU complex on the SMC
(ASR 5000), DPCs (ASR 5500) and SF Virtual Machine
(VPC-DI).
Processes incoming broadcast messages from the Client
processes, such as sessctrl, distributes them to the correct
Target Facility, such as sessmgr, creates the correct responses
and sends them back to the correct Client.
Name Service Controller
As part of the Messenger process, provides a reliable channel
for tasks to send control messages to the Messenger Daemon.
Network Time Protocol
Maintains the system time in synchronization with time
(NTP) Daemon
servers using NTP. Enabled when one or more NTP servers
have been configured via the NTP Configuration mode ntp
server CLI command.
Recovery Control Task
Monitors tasks/managers/facilities across the system and
performs recovery in the event of a failure.
Shared Configuration
Performs the redundant storage of configuration information
Task
and other state information in an in-memory database.
Switch Fabric Task
Monitors the switch fabric and the gigabit Ethernet control
plane.
Secure SHell Daemon
Supports secure login to the StarOS CLI. Enabled via the
Context Configuration mode server sshd CLI command.
ASR 5000 System Administration Guide, StarOS Release 21.1
Platform Processes
395
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Troubleshooting
