Cisco Cisco Packet Data Gateway (PDG) Guida Alla Risoluzione Dei Problemi
System Software Task and Subsystem Descriptions
Primary Subsystem Composition ▀
Cisco ASR 5000 Series System Administration Guide ▄
OL-22969-02
Task
Description
Card
CPU
w/o SR
w/ SR
w/o
SR
SR
w/
SR
SR
Daughter Card
Manager
(DCARDMGR)
Manager
(DCARDMGR)
The daughter card manager is responsible for managing IPsec
Security Associations for AH and ESP based sessions.
The daughter card manager is also responsible for interfacing to the
on-board hardware accelerated cryptographic chip which executes
cryptographic algorithms associated with the given IPsec Security
Associations.
Security Associations for AH and ESP based sessions.
The daughter card manager is also responsible for interfacing to the
on-board hardware accelerated cryptographic chip which executes
cryptographic algorithms associated with the given IPsec Security
Associations.
All
PACs
PACs
All
PACs
PACs
0
0
Distributed Host
Manager (DHMGR)
Manager (DHMGR)
Started automatically on each CPU by SITPARENT.
Coordinates establishment of locally terminated TCP, SCTP, and
UDP connections on behalf of multi-instanced tasks such as
Diameter endpoints among SESSMGR tasks.
Coordinates establishment of locally terminated TCP, SCTP, and
UDP connections on behalf of multi-instanced tasks such as
Diameter endpoints among SESSMGR tasks.
All
All
All
All
IPSec Controller
(IPSECCTRL)
(IPSECCTRL)
The IPSec controller is started by SIT on system startup regardless of
configuration and performs the following functions:
configuration and performs the following functions:
It starts IPSECMGR tasks based on configuration and
maintains its list for task recovery.
maintains its list for task recovery.
It receives user configuration for IPSec and maintains the
same.
same.
It also manages the configured IPSec crypto maps and its
assignment to ipsecmgrs.
assignment to ipsecmgrs.
It interfaces with the VPNMGR task for required IPSec
configuration parameters such as IP Access-lists, IP pools,
interface addresses, interface state notifications, etc.
configuration parameters such as IP Access-lists, IP pools,
interface addresses, interface state notifications, etc.
Active
SPC
SPC
Active
SPC
SPC
0
0
IPSec Manager
(IPSECMGR)
(IPSECMGR)
Created by the Session Controller, the IPSECMGR performs the
following functions:
following functions:
Establishes and manages secure IKEv1, IKEv2 and IPSec
data tunnels.
data tunnels.
PAC
PAC
All
All
Driver Controller
(DRVCTRL)
(DRVCTRL)
The driver controller is responsible for the centralizing accesses to
many of the system device drivers. It also performs temperature &
voltage monitoring.
many of the system device drivers. It also performs temperature &
voltage monitoring.
SPCs
SPCs
0
0
Switch Fabric Task
(SFT)
(SFT)
The switch fabric task is responsible for monitoring the switch fabric
and the gigabit Ethernet control plane.
and the gigabit Ethernet control plane.
PACs
PACs
0
0
Shared Configuration
Task (SCT)
Task (SCT)
Performs the redundant storage of configuration information and
other state information in an in-memory database.
other state information in an in-memory database.
SPCs
SPCs
0
0
Recovery Control
Task (RCT)
Task (RCT)
Monitors tasks/managers/facilities across the system and performs
recovery in the event of a failure.
recovery in the event of a failure.
SPCs
SPCs
0
0
Utilities Configuration
Manager (UCM)
Manager (UCM)
DHCPD, DNS, FTPD, INETD, NTPD, PING, RLOGIN, SFTPD,
SFTP-SERVER, SNMPD, SSH, SSHD, TELNET, TELNETD,
TFTPD, TRACEROUTE
SFTP-SERVER, SNMPD, SSH, SSHD, TELNET, TELNETD,
TFTPD, TRACEROUTE
Active
SPC
SPC
Active
SPC
SPC
0
0