Symbols
A
- access privilege levels
- accounting
- applications
- description
- TACACS+, configuring
- admin permission
- admin-control permission
- all permission
- announcements at system login
- APIs (application programming interfaces)
- CORBA plug-in SPI
- CORBA remote API
- description
- SAE core API 1, 2
- application programming interfaces. See APIs
- architecture
- authentication 1, See also user accounts
- configuration example
- multiple methods
- RADIUS
- shared user accounts 1, 2
- TACACS+
- TACACS+, configuring
- TACACS+, configuring with C-Web interface
- TACACS+, configuring with SRC CLI
- template accounts
- authentication order
- configuring with C-Web interface
- configuring with SRC CLI 1, 2
- overview 1, 2
- removing authentication method
- removing authentication method with SRC CLI
B
C
- C Series Controller
- C Series Controllers
- C-Web interface
- committing a configuration
- configuration options
- configuring
- HTTP access 1, 2
- HTTPS access 1, 2
- logging properties
- copying an object
- deleting an object
- editing level
- elements
- getting Help
- icons
- layout
- loading configuration values
- logging out
- moving an object
- navigating
- overview 1, 2
- password, changing
- Policies, Services, and Subscribers
- renaming an object
- reverting a configuration
- starting
- updating configuration data
- username, changing
- C2000 Controller
- C3000 Controller
- C4000 Controller
- C5000 Controller
- clear permission
- cli
- client mode, NTP
- commands
- configuration statements
- configure permission
- control permission
- conventions
- customer support 1
- cweb-password
D
- date on system
- deployment scenarios
- DES (directory eventing system)
- differentiated QoS
- digital certificates. See security
- directory
- directory connection properties
- directory eventing system
- directory server
- documentation
- draft RFCs
- dynamic webpages
E
F
G
- Gigabit Ethernet interfaces, configuring IPv4
- Gigabit Ethernet interfaces, configuring IPv6
- GRE tunnel interfaces
- group interfaces, configuring 1
H
I
J
- Java Naming and Directory Interface. See JNDI
- java-heap-size, configuring
- JNDI (Java Naming and Directory Interface)
- Juniper Networks database
- adding Juniper Networks database to community
- changing modes
- community mode
- community mode configuration
- configuration example
- configuration statements
- configuring
- data recovery
- high availability
- loading sample data
- neighbors 1, 2
- overview 1, 2
- redundancy
- roles
- changing secondary to primary, SRC CLI
- overview 1, 2
- standalone mode
- verifying configuration
- Juniper-Allow-Commands attribute (RADIUS)
- Juniper-Allow-Configuration attribute (RADIUS)
- Juniper-Deny-Commands attribute (RADIUS)
- Juniper-Deny-Configuration attribute (RADIUS)
- Juniper-Local-User-Name attribute (RADIUS)
L
- LDAP (Lightweight Directory Access Protocol). See directory; directory server
- LDAP directory. See directory
- leases for licenses. See license server
- license
- license manager
- configuration statements
- configuring
- license server
- license usage
- Lightweight Directory Access Protocol. See LDAP
- load balancing
- local password authentication
- local properties
- logging, See also system log server
- login announcements, system
- login classes
- configuration
- configuration examples
- configuration prerequisites
- configuration statements
- configuration verification
- default classes
- idle timeout values
- options
- overview
- predefined
- privilege level options
- privilege levels
M
- maintenance permission
- manuals
- messages
- MII monitor
- configuring
- Monitoring Agent
- multicast
N
- NAS ID, configuring for SAE
- network
- network information collector. See NIC
- NIC (network information collector)
- notice icons
- NTP (Network Time Protocol)
- NTP,
O
- on-demand services 1, 2
- open interfaces
- operator login class
- operators, regular expression
- OSS integration
P
- passwords
- permissions
- policies
- Policies, Services, and Subscribers CLI. See SRC CLI
- Policies, Services, and Subscribers tasks. See C-Web interface
- policy management
- ports
- predefined login classes
- primary directory
- privilege levels 1
- product features 1, 2
R
- RADIUS
- RADIUS authentication. See authentication
- RADIUS authorization. See authentication
- read-only login class
- redundancy
- references
- regular expressions
- request license import file-name command
- reset permission
- residential portal
- resolving hostnames
- retrieving directory changes
- RFCs 1, 2, 3
- root account 1
- router running Junos OS
- router running JunosE Software
- routing permission
- routing-control permission
S
- SAE (service activation engine)
- configuring groups
- deleting default configurations
- SRC CLI 1, 2
- description 1, 2
- initial properties, overview
- starting
- stopping
- verifying status
- SAE (service activation engine), configuring initial properties
- SAE (service activation engine), configuring NAS ID
- SAE (service activation engine), configuring RADIUS address
- sample data
- secondary directory
- secret permission
- secret-control permission
- security
- digital certificates 1
- clearing certificates 1, 2
- clearing requests
- prerequisites
- requesting certificates 1, 2
- requesting certificates through SCEP
- viewing certificates
- security permission
- security-control permission
- server license. See license
- service activation engine. See SAE
- service permission
- service-control permission
- services
- shared user accounts
- shell permission
- SNMP agent
- access control, configuring on C Series Controllers
- community strings 1, 2
- named views
- SNMP groups
- VACM
- configuration statements 1, 2
- configuring
- description
- directory connection parameters, configuring
- Java Runtime Environment, configuring
- local properties, configuring
- logging, configuring
- monitoring
- named views, defining
- notification targets, configuring
- starting
- stopping
- system information, configuring
- trap history, configuring
- SNMP Agent
- snmp control permission
- snmp permission
- SNMP traps
- notification targets, configuring
- snmp-named-views-cli
- snmp-security-names-cli
- snmp-statements
- software standards
- SRC ACP (SRC Admission Control Plug-In)
- SRC CLI 1
- directory connections
- overview
- Policies, Services, and Subscribers CLI
- starting
- SRC components
- SRC software
- configuration prerequisites
- configuring
- creating, virtualized instance 1
- description
- features and benefits 1, 2
- financial advantages
- OSS integration
- recovering
- services
- snapshot on C Series Controller
- upgrading
- USB Storage Device
- virtualization
- virtualization, requirement
- SSH (secure shell)
- standards 1
- static host mapping
- static routes, configuring
- Steel-Belted Radius/SPE server 1, 2
- subscriber
- subscriber permission
- subscriber-control permission
- superuser login class
- support, technical See technical support
- symmetric active mode, NTP
- system authentication. See authentication
- system log server
- configuration prerequisites
- configuration statements
- message groups
- message severity levels
- messages
- messages, file
- messages, server
- messages, user notification
- overview
- system login
- system permission
- system-control permission
T
- TACACS+ authentication. See authentication
- tariff models
- technical support
- Telnet connection to remote host
- template authentication accounts
- text conventions defined
- third-party URLs
- tunnel interfaces
- tunnel interfaces, configuring
U
- UIDs
- unauthorized login class
- unresponsive directories
- usage data
- user accounts 1, See also login classes
- authentication
- configuring passwords
- configuring SSH authentication
- root password 1, 2
- authentication method and password
- configuration
- configuration verification 1, 2
- example
- overview 1, 2, 3
- shared
- user notification messages
V
W
- Web application server
- application deployment 1, 2
- channel stack
- configuration statements
- configuring the Web application server
- installing Web applications inside
- local properties
- multicast-address
- node-id
- overview
- removing Web applications from
- restarting
- shared cluster name
- shared cluster nodes
- shared cluster properties
- starting
- stopping
- viewing cluster history
- viewing cluster status
- viewing statistics
- Web Services Gateway
Download This Guide
Related Documentation
- Configuring NTP on a C Series Controller
- Viewing NTP Peers (SRC CLI)
- Viewing NTP Peers (C-Web Interface)
- Configuration Statements for NTP on C Series Controllers
NTP Support on C Series Controllers
NTP synchronizes and coordinates time among NTP clients and servers. It uses a returnable-time design in which a distributed subnet of time servers operate in a self-organizing, hierarchical, master-slave configuration. NTP synchronizes time for local clocks within a subnet and to another server or other time source such as a high-precision clock or satellite receiver. NTP clients are also servers that distribute a time synchronized to another NTP server.
NTP is defined in RFC 1305—Network Time Protocol (Version 3) Specification Implementation and Analysis (March 1992).
![]() | Note: We highly recommend that you use NTP to set the system time to ensure that the SRC software operates correctly. |
For NTP servers on C Series Controllers, if the time difference between the local NTP server and the servers with which it synchronizes time is more than 1000 seconds, the local NTP server stops running. Configure a boot server for NTP so that the software obtains the initial time from the boot server before the NTP server starts.
When you configure NTP, you can specify which system on the network is the authoritative time source, or time server, and how time is synchronized between systems on the network. You can configure NTP to operate in one or more of the following modes:
- Client mode—The local system can be synchronized with the remote system, but the remote system cannot be synchronized with the local system.
- Symmetric active (peer) mode—The local system and
the remote system can synchronize with each other. You use this mode
in a network in which either the local system or the remote system
might be a better source of time.
Note: Symmetric active mode can be initiated by either the local or the remote system. Only one system needs to be configured to do so. This means that the local system can synchronize with any system that offers symmetric active mode without any configuration whatsoever. However, we highly recommend that you configure authentication to ensure that the local system synchronizes only with known time servers.
- Broadcast mode—The local system sends periodic broadcast messages to a client population at the specified broadcast or multicast address. Typically, you include this statement only when the local system is operating as a transmitter.
- Server mode—The local system operates as an NTP server.
You can also configure NTP to operate as a broadcast client or a multicast client.
Related Documentation
- Configuring NTP on a C Series Controller
- Viewing NTP Peers (SRC CLI)
- Viewing NTP Peers (C-Web Interface)
- Configuration Statements for NTP on C Series Controllers