Supported Platforms
Related Documentation
- EX, J, M, MX, SRX, T Series
- Understanding MLD
- EX, M, MX, PTX, QFX, T Series
- Specifying Log File Size, Number, and Archiving Properties in the Junos OS Administration Library for Routing Devices
Example: Recording MLD Join and Leave Events
This example shows how to determine whether MLD tuning is needed in a network by configuring the routing device to record MLD join and leave events.
Requirements
Before you begin:
- Configure the router interfaces. See the Junos OS Network Interfaces Library for Routing Devices.
- Configure an interior gateway protocol or static routing. See the Junos OS Routing Protocols Library for Routing Devices.
- Enable IPv6 unicast routing. See the Junos OS Routing Protocols Library for Routing Devices.
- Enable PIM. See PIM Overview.
Overview
Table 1 describes the recordable MLD join and leave events.
Table 1: MLD Event Messages
ERRMSG Tag | Definition |
|---|---|
RPD_MLD_JOIN | Records MLD join events. |
RPD_MLD_LEAVE | Records MLD leave events. |
RPD_MLD_ACCOUNTING_ON | Records when MLD accounting is enabled on an MLD interface. |
RPD_MLD_ACCOUNTING_OFF | Records when MLD accounting is disabled on an MLD interface. |
RPD_MLD_MEMBERSHIP_TIMEOUT | Records MLD membership timeout events. |
Configuration
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, and then copy and paste the commands into the CLI at the [edit] hierarchy level.
Step-by-Step Procedure
The following example requires you to navigate various levels in the configuration hierarchy. For information about navigating the CLI, see Using the CLI Editor in Configuration Mode in the CLI User Guide.
To configure recording of MLD join and leave events:
Enable accounting globally or on an MLD interface. This example shows the interface configuration.
[edit protocols mld]user@host# set interface fe–0/1/0.2 accounting- Configure the events to be recorded, and filter the events to a system log file with a descriptive filename, such as mld-events.
- Periodically archive the log file.
This example rotates the file every 24 hours (1440 minutes) when it reaches 100 KB and keeps three files.
[edit system syslog file mld-events]user@host# set archive size 100000[edit system syslog file mld-events]user@host# set archive files 3[edit system syslog file mld-events]user@host# set archive archive-sites “ftp://user@host1//var/tmp” password “anonymous”[edit system syslog file mld-events]user@host# set archive archive-sites “ftp://user@host2//var/tmp” password “test”[edit system syslog file mld-events]user@host# set archive transfer-interval 1440[edit system syslog file mld-events]user@host# set archive start-time 2011–01–07:12:30 If you are done configuring the device, commit the configuration.
[edit system syslog file mld-events]]user@host# commit
Verification
You can view the system log file by running the file show command.
You can monitor the system log file as entries are added to the file by running the monitor start and monitor stop commands.
*** mld-events *** Apr 16 13:08:23 host mgd[16416]: UI_CMDLINE_READ_LINE: User 'user', command 'run monitor start mld-events ' monitor
Related Documentation
- EX, J, M, MX, SRX, T Series
- Understanding MLD
- EX, M, MX, PTX, QFX, T Series
- Specifying Log File Size, Number, and Archiving Properties in the Junos OS Administration Library for Routing Devices
Published: 2013-08-13
Supported Platforms
Related Documentation
- EX, J, M, MX, SRX, T Series
- Understanding MLD
- EX, M, MX, PTX, QFX, T Series
- Specifying Log File Size, Number, and Archiving Properties in the Junos OS Administration Library for Routing Devices
