Juniper JUNOSE 11.3, Configuration Manual

Page: 256 / 632

There is no re-use of ifIndex values in RFC 1213 mode, whereas in the default interface
numbering mode, ifIndex values can be re-used. In the default interface numbering mode,
re-use of ifIndex values across reboots is permitted and is basically known as ifIndex
re-numbering.
In RFC 1213 mode, however, the interface numbers are not re-used during a single
initialization of the device and renumbering of ifIndexes occurs after a system reboot. In
the default interface numbering mode, ifIndexes are persistent across system reboots
and can be reused without resetting the value of sysUpTime.
In RFC 1213 mode, two parameters control the size of the ifIndex range and the total
number of interfaces in the standard interface tables—maxIfIndex and maxIfNumber.
There is no such control in the default interface numbering mode.
In RFC 1213 mode, interface creations should not result in gaps in the ifIndex range. A gap
that results from the deletion of an interface is acceptable because it is handled by older
network management applications. The gaps are eliminated after the router is rebooted.
However, in the default interface numbering mode, large gaps occur from the creation
of interfaces due to the use of the upper 8 bits of the ifIndex for interface type encoding.
Gaps are not eliminated after a system reboot.
In RFC 1213 mode, small gaps can occur in the creation of IP interfaces when virtual routers
are used. These gaps are minimized but not eliminated when the router is rebooted.
Rather than seeing an ifIndex value of 1 and 10066329, for example, a management
client would see ifIndex values of 1 and 2.
bulkstats interfaces rfc1213
•
Use to enable the RFC 1213 interface numbering mode on bulkstats.
•
Example
host1(config)# bulkstats interfaces rfc 1213
•
Use the no version to disable the RFC 1213 interface numbering mode on bulkstats.
•
See bulkstats interfaces rfc1213.
Using the Bulk Statistics Formatter
The bulk statistics formatter allows you to set a remote filename dynamically and specify
the format for the end of each line in the bulkstats file.
Setting Remote Filenames
The router supports the following special characters for remote filenames:
• %x—An integer in hexadecimal format (base 16)
•
%s—A character string
•
%u—An unsigned integer in decimal (base 10)
• %d—An integer in decimal (base 10)
Copyright © 2010, Juniper Networks, Inc. 226
JunosE 11.3.x System Basics Configuration Guide