Setting The Administrative Distance - Juniper IGP - CONFIGURATION GUIDE V11.1.X Configuration Manual

JUNOSe 11.0.x IP, IPv6, and IGP Configuration Guide
metric-style wide

Setting the Administrative Distance

You can indicate the dependability of a routing information source by configuring
the administrative distance for learned routes.
distance ip
366
Configuring Global IS-IS Parameters
Use to specify that the router generates and accepts both old-style and new-style
TLV tuples.
Old style refers to TLVs having metrics with a narrow (six-bit) field with a value
in the range 0–63. New style refers to TLVs having metrics with a wider field, as
provided for in current extensions to IS-IS traffic engineering.
Specify whether the command applies to level 1, level 2, or both.
Example
host1(config-router)#metric-style transition level-1
Issuing this command results in more resource usage than issuing the metric-style
narrow or metric-style wide commands.
Use the no version to restore the default, which is to generate and accept only
old-style TLVs with narrow (six-bit) metric fields.
See metric-style transition
Use to specify that the router generates and accepts only new-style TLV tuples.
Old style refers to TLVs having metrics with a narrow (six-bit) field with a value
in the range 0–63. New style refers to TLVs having metrics with a wider field, as
provided for in current extensions to IS-IS traffic engineering.
Use the transition option to accept old-style and new-style metrics; only new-style
metrics are generated.
Specify whether the command applies to level 1, level 2, or both.
Before you set a route tag for an IS-IS interface, you must issue the metric-style
wide command to configure the router to generate and accept TLV type 135,
which is a new-style tuple that contains the route tag.
Example
host1(config-router)#metric-style wide level-1-2
Use the no version to restore the default, which is to generate and accept only
old-style TLVs with narrow (six-bit) metric fields.
See metric-style wide
Use to configure the administrative distance for IS-IS learned routes.
The distance indicates the dependability of a routing information source. A higher
relative value indicates lower dependability. Preference is always given to the
routes with smaller values.