Juniper SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X User Manual

total number of interfaces (ifNumber). More recent RFCs—1573, 2232, and
2863—removed these restrictions to accommodate interface sublayers. The E Series
router implementation of SNMP derives index numbers in 32-bit values that are
unique on a given router. This numbering scheme can result in large gaps in the
ifIndex.
Legacy network management software that was designed to work with RFC 1213
implementations expects contiguous integers and can fail when the software
encounters large gaps in the ifIndex.
By default, the router uses a numbering scheme based on RFC 2863. For compatibility
with RFC 1213, you can set up the router to use contiguous numbers and to limit
the values of the ifIndex and the ifNumber.
snmp-server interfaces rfc1213
■ Use to set up the interface numbering method in the IfTable to use contiguous
integers, which provides compatibility with versions of SNMP that are based on
RFC 1213.
■ The maxIfIndex option sets the maximum value of the ifIndex field that the
system will allocate.
■ The maxIfNumber option sets the maximum number of interfaces allowed in the
interface tables.
CAUTION: Reducing the value of the maxIfIndex or maxIfNumber causes the router
to automatically reboot to factory default settings.
■ When the IfIndex and IfNumber maximums are reached, the system logs the
event and ignores the creation of additional interfaces, which means that new
interfaces are not visible in the interface table.
■ Example
host1(config)#snmp-server interfaces rfc1213 55000 100000
WARNING: Execution of this command will cause all configuration settings to
revert to factory defaults upon the next system reboot.
Proceed with 'snmp interfaces rfc1213'? [confirm]
■ Use the no version to return to the default method of interface numbering.
■ See snmp-server interfaces rfc1213.
Monitoring Interface Tables
Use the following command to view the configuration of your interface tables.
show snmp interfaces
166 ■ SNMP Configuration Tasks
JUNOSe 11.1.x System Basics Configuration Guide

Juniper SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X Specifications

General

Brand	Juniper
Model	SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X
Category	Software
Language	English