Network Management Features in the Junos OS

The Junos OS substantially supports SNMP version 1, version 2c, and version 3. The Junos SNMP agent software accepts both IP version 4 (IPv4) and IP version 6 (IPv6) addresses.

The Junos OS provides numerous enterprise MIBs, including the following:

• Alarm
• Asynchronous Transfer Mode (ATM)
• ATM class of service (CoS)
• BGP4 version 2
• Chassis
• Chassis definitions for router model
• Chassis forwarding
• CoS
• Configuration management
• Destination class usage
• Dynamic flow capture
• Ethernet media access control (MAC)
• Experimental
• Firewall
• Flow collector services
• Host resources
• IP Security (IPsec) monitoring
• IPv4
• IPv6 and ICMPv6
• LDP
• MPLS
• Passive monitoring
• RSVP traffic engineering
• Reverse path forwarding
• Services PIC
• SONET Automatic Protection Switching (APS)
• SONET/SDH interface management
• Source class usage
• Structure of Management Information (SMI)
• Virtual private network (VPN)

For more information about MIBs, see the Junos Network Management Configuration Guide.

The Junos OS supports the use of scripts and event-triggered policies that you write to automate network management. The functions you can perform with these utilities include the following:

• Automatically detect, diagnose, and fix network problems. When it detects a problem, the script can issue a command that includes options appropriate to the current situation, and then interpret the command output to determine the next appropriate command or action.
• Periodically check for alarms or other indicators of network or chassis problems, and perform specific actions if they exist.
• Respond automatically to the occurrence of events and conditions that also trigger system log messages or SNMP traps.
• Verify that the router’s configuration includes only statements you deem appropriate for your network, and automatically add or remove statements as necessary.
• Automatically change the router’s configuration in response to network problems or conditions you specify.
• Generate custom error, warning, or system log messages.

For more information about scripts and event policies, see the Junos Configuration and Operations Automation Guide.

In addition, the Junos OS provides extensions to the interface, ping, remote monitoring (RMON) events and alarms, and traceroute MIBs.

For some traps, a message is directed to the system log when the trap condition occurs, even if the SNMP agent does not send the trap to a network management system (NMS).

Related Topics

• Supported Network Management Standards