Users Guide

Configure Metric Values
For any level (Level-1, Level-2, or Level-1-2), the value range possible in the isis metric command in
INTERFACE mode changes depending on the metric style.
The following describes the correct value range for the isis metric command.
Metric Style Correct Value Range for the isis metric Command
wide 0 to 16777215
narrow 0 to 63
wide transition 0 to 16777215
narrow transition 0 to 63
transition 0 to 63
Maximum Values in the Routing Table
IS-IS metric styles support different cost ranges for the route. The cost range for the narrow metric style is
from 0 to 1023, while all other metric styles support a range of 0 to 0xFE000000.
Change the IS-IS Metric Style in One Level Only
By default, the IS-IS metric style is narrow. When you change from one IS-IS metric style to another, the IS-IS
metric value (configured with the isis metric command) could be affected.
In the following scenarios, the IS-type is either Level-1 or Level-2 or Level-1-2 and the metric style changes.
Table 44. Metric Value When the Metric Style Changes
Beginning Metric Style Final Metric Style Resulting IS-IS Metric Value
wide narrow default value (10) if the original
value is greater than 63. A message
is sent to the console.
wide transition truncated value (the truncated
value appears in the LSP only). The
original isis metric value is
displayed in the show config and
show running-config
commands and is used if you
change back to transition metric
style.
Intermediate System to Intermediate System 588