- play_arrow Operation, Administration, and Management Features
- play_arrow Ethernet OAM and Connectivity Fault Management for Routers
- Introduction to OAM Connectivity Fault Management (CFM)
- Configure Connectivity Fault Management (CFM)
- CFM Action Profile
- Ethernet Local Management Interface
- CFM Support for CCC Encapsulated Packets
- Configure Unified ISSU for 802.1ag CFM
- CFM Monitoring between CE and PE Devices
- Configure Continuity Check Messages
- Example: Configure Ethernet CFM on Physical Interfaces
- Example: Configure Ethernet CFM on Bridge Connections
- Example: Configure Ethernet CFM over VPLS
- play_arrow Link Fault Management for Routers
- play_arrow Ethernet OAM Link Fault Management for Switches
- play_arrow Ethernet OAM Connectivity Fault Management for Switches
- play_arrow Ethernet Frame Delay
- Ethernet Frame Delay Measurements on Switches
- Configure MEP Interfaces on Switches to Support Ethernet Frame Delay Measurements (CLI Procedure)
- Configure One-Way Ethernet Frame Delay Measurements on Switches (CLI Procedure)
- Configure an Iterator Profile on a Switch (CLI Procedure)
- Trigger an Ethernet Frame Delay Measurement Session on a Switch
- Configure Two-Way Ethernet Frame Delay Measurements on Switches (CLI Procedure)
- play_arrow Ethernet Service OAM (ITU-TY.1731) for Routers
- ITU-T Y.1731 Ethernet Service OAM Overview
- Configure Ethernet Frame Delay Measurement Sessions
- Configuring MEP Interfaces to Support Ethernet Frame Delay Measurements
- Configure Ethernet Frame Loss Measurement
- Configure an Iterator Profile
- Configure Ethernet Synthetic Loss Measurements
- Ethernet Alarm Indication
- Inline Transmission Mode
-
- play_arrow Network Monitoring by using SNMP
- SNMP Architecture and SNMP MIBs Overview
- Understand SNMP Implementation in Junos OS
- Configure SNMP in Junos OS
- Configure Options on Managed Devices for Better SNMP Response Time
- Enterprise Specific Utility MIB to Enhance SNMP Coverage
- Optimize the Network Management System Configuration for the Best Results
- Interfaces to Accept SNMP Requests
- Configure SNMP for Routing Instances
- Configure SNMP Remote Operations
- SNMP Traps
- SNMP Traps Supported by Junos OS
- Trace SNMP Activity
- Access Privileges for an SNMP Group
- Configure Local Engine ID on SNMPv3
- Configure SNMPv3
- Configure SNMPv3 Authentication Type and Encryption Type
- SNMPv3 Traps
- SNMPv3 Informs
- SNMP Communities
- MIB Views
- SNMP MIBs Supported by Junos OS and Junos OS Evolved
- Junos OS SNMP FAQs
- play_arrow Remote Network Monitoring (RMON) with SNMP Alarms and Events
- play_arrow Accounting Options
- play_arrow Monitoring Options
- play_arrow Interface Alarms
- play_arrow IP Monitoring
- play_arrow sFlow Monitoring Technology
- play_arrow Adaptive Sampling for Routers and Switches
- play_arrow Packet Flow Accelerator Diagnostics Software
-
- play_arrow Monitoring Common Security Features
- play_arrow Performance Management
- play_arrow Port Mirroring
- play_arrow Port Mirroring and Analyzers
- Port Mirroring and Analyzers
- Configuring Port Mirroring and Analyzers
- Configuring Port Mirroring Instances
- Configuring Port Mirroring on Physical Interfaces
- Configuring Port Mirroring on Logical Interfaces
- Configuring Port Mirroring for Multiple Destinations
- Configuring Port Mirroring for Remote Destinations
- Configuring Port Mirroring Local and Remote Analysis
- 1:N Port Mirroring to Multiple Destinations on Switches
- Example: Configure Port Mirroring with Family any and a Firewall Filter
- Monitoring Port Mirroring
- Configure Packet Mirroring with Layer 2 Headers for Layer 3 Forwarded Traffic
- Troubleshooting Port Mirroring
-
- play_arrow System Log Messages
- play_arrow Network Management and Troubleshooting
- Compressing Troubleshooting Logs from /var/logs to Send to Juniper Networks Technical Support
- Monitoring and Troubleshooting
- Troubleshooting System Performance with Resource Monitoring Methodology
- Configuring Data Path Debugging and Trace Options
- Using MPLS to Diagnose LSPs, VPNs, and Layer 2 Circuits
- Using Packet Capture to Analyze Network Traffic
- On-Box Packet Sniffer Overview
- Troubleshooting Security Devices
- play_arrow Configuration Statements and Operational Commands
Tracing and Logging Operations
Tracing and logging operations enable you to track events that occur in the switch—both normal operations and error conditions—and to track the packets that are generated by or passed through the switch. The results of tracing and logging operations are placed in /var/log directory on the switch.
The Junos OS supports remote tracing for the following processes:
chassisd—Chassis-control process
eventd—Event-processing process
cosd—Class-of-service process
You configure remote tracing using the tracing
statement at the [edit
system]
hierarchy level.
The tracing
statement is not supported on the
QFX3000 QFabric system.
You can disable remote tracing for specific processes on the switch using the
no-remote-trace
statement at the [edit
process-name traceoptions]
hierarchy level.
Logging operations use system logging mechanism similar to the UNIX syslogd utility to record
systemwide, high-level operations, such as interfaces going up or down and users logging
in to or out of the switch. You configure these operations by using the
syslog
statement at the [edit system]
hierarchy
level and by using the options
statement at the [edit
ethernet-switching-options]
hierarchy level.
Tracing operations record more detailed information about the operations of the switch, including
packet forwarding and routing information. You can configure tracing operations using
the traceoptions
statement.
The traceoptions
statement is not supported
on the QFX3000 QFabric system.
You can define tracing operations in different portions of the switch configuration:
SNMP agent activity tracing operations—Define tracing of the activities of SNMP agents on the switch. You can configure SNMP agent activity tracing operations at the
[edit snmp]
hierarchy level.Global switching tracing operations—Define tracing for all switching operations. You configure global switching tracing operations at the
[edit ethernet-switching-options]
hierarchy level.Protocol-specific tracing operations—Define tracing for a specific routing protocol. You configure protocol-specific tracing operations in the
[edit protocols]
hierarchy. Protocol-specific tracing operations override any equivalent operations that you specify in the globaltraceoptions
statement.Tracing operations within individual routing protocol entities—Some protocols allow you to define more granular tracing operations. For example, in Border Gateway Protocol (BGP), you can configure peer-specific tracing operations. These operations override any equivalent BGP-wide operations. If you do not specify any peer-specific tracing operations, the peers inherit, first, all the BGP-wide tracing operations and, second, the global tracing operations.
Interface tracing operations—Define tracing for individual interfaces and for the interface process itself. You define interface tracing operations at the
[edit interfaces]
hierarchy level.Remote tracing—To enable system-wide remote tracing, configure the
destination-override syslog host
statement at the[edit system tracing]
hierarchy level. This specifies the remote host running the system log process (syslogd), which collects the traces. Traces are written to files on the remote host in accordance with the syslogd configuration in /etc/syslog.conf. By default, remote tracing is not configured.To override the system-wide remote tracing configuration for a particular process, include the
no-remote-trace
statement at the[edit process-name traceoptions]
hierarchy. Whenno-remote-trace
is enabled, the process does local tracing.To collect traces, use the local0 facility as the selector in the /etc/syslog.conf file on the remote host. To separate traces from various processes into different files, include the process name or trace-file name (if it is specified at the [edit
process-name traceoptions file
] hierarchy level) in the Program field in the /etc/syslog.conf file. If the system log server supports parsing hostname and program name, then you can separate traces from the various processes.
During a commit check, warnings about the traceoptions
configuration (for example, mismatch in trace file sizes or number
of trace files) are not displayed on the console. However, these warnings
are logged in the system log messages when the new configuration is
committed.