Maximum Values in the Routing TableIS-IS metric styles support different cost ranges for the route. The cost range for the narrow metric style is 0 to 1023, while all other metricstyles support a range of 0 to 0xFE000000.Change the IS-IS Metric Style in One Level OnlyBy default, the IS-IS metric style is narrow. When you change from one IS-IS metric style to another, the IS-IS metric value (configuredwith 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 ChangesBeginning Metric Style Final Metric Style Resulting IS-IS Metric Valuewide narrow default value (10) if the original value isgreater than 63. A message is sent to theconsole.wide transition truncated value (the truncated valueappears in the LSP only). The original isismetric value is displayed in the showconfig and show running-configcommands and is used if you change backto transition metric style.NOTE: A truncated value is a valuethat is higher than 63, but set backto 63 because the higher value isnot supported.wide narrow transition default value (10) if the original value isgreater than 63. A message is sent to theconsole.wide wide transition original valuenarrow wide original valuenarrow transition original valuenarrow narrow transition original valuenarrow wide transition original valuetransition wide original valuetransition narrow original valuetransition narrow original valuetransition wide transition original valuenarrow transition wide original valuenarrow transition narrow original valuenarrow transition wide transition original valueIntermediate System to Intermediate System 477
