- play_arrow Overview
- 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 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
ON THIS PAGE
Example: Configure Interface Alarms
This example shows how to configure interface alarms.
Requirements
Before you begin:
Establish basic connectivity.
Configure network interfaces. See Interfaces User Guide for Security Devices.
Select the network interface on which to apply an alarm and the condition you want to trigger the alarm.
Overview
In this example, you enable interface alarms by explicitly setting alarm conditions. You configure the system to generate a red interface alarm when a yellow alarm is detected on a DS1 link. You configure the system to generate a red interface alarm when a link-down failure is detected on an Ethernet link.
For a serial link, you set cts-absent and dcd-absent to yellow to signify either the CST or the DCD signal is not detected. You set loss-of-rx-clock and loss-of-tx-clock to red alarm to signify either the receiver clock signal or the transmission clock signal is not detected.
For a T3 link, you set the interface alarm to red when the remote endpoint is experiencing a failure. You set exz to yellow alarm when the upstream bit has more consecutive zeros than are permitted in a T3 interface. You then set a red alarm when there is loss-of-signal on the interface.
Finally, you configure the system to display active system alarms whenever a user with the login class admin logs in to the device.
Configuration
Procedure
CLI Quick Configuration
To quickly configure this example, copy the
following commands, paste them into a text file, remove any line breaks,
change any details necessary to match your network configuration,
copy and paste the commands into the CLI at the [edit]
hierarchy
level, and then enter commit
from configuration mode.
set chassis alarm ds1 ylw red set chassis alarm ethernet link-down red set chassis alarm serial cts-absent yellow dcd-absent yellow set chassis alarm serial loss-of-rx-clock red loss-of-tx-clock red set chassis alarm t3 ylw red exz yellow los red set system login class admin login-alarms
Step-by-Step Procedure
The following example requires you to navigate various levels in the configuration hierarchy. For instructions on how to do that, see Using the CLI Editor in Configuration Mode in the Junos OS CLI User Guide .
To configure interface alarms:
Configure an alarm.
content_copy zoom_out_map[edit] user@host# edit chassis alarm
Specify the interface alarms on a DS1 and an Ethernet link.
content_copy zoom_out_map[edit chassis alarm] user@host# set ds1 ylw red user@host# set ethernet link–down red
Specify the interface alarms on a serial link.
content_copy zoom_out_map[edit chassis alarm] user@host# set serial cts-absent yellow user@host# set serial dcd-absent yellow user@host# set serial loss-of-rx-clock red user@host# set serial loss-of-tx-clock red
Specify the interface alarms on a T3 link.
content_copy zoom_out_map[edit chassis alarm] user@host# set t3 ylw red user@host# set t3 exz yellow user@host# set t3 los red
Configure the system to display active system alarms.
content_copy zoom_out_map[edit] user@host# edit system login user@host# set class admin login-alarms
Results
From configuration mode, confirm your configuration
by entering the show chassis alarms
and show system
login
commands. If the output does not display the intended
configuration, repeat the configuration instructions in this example
to correct it.
[edit] user@host#show chassis alarms
t3 { exz yellow; los red; ylw red; } ds1 { ylw red; } ethernet { link-down red; } serial { loss-of-rx-clock red; loss-of-tx-clock red; dcd-absent yellow; cts-absent yellow; } [edit] user@host#show system login
show system login show system login }
If you are done configuring the device, enter commit
from configuration mode.