880 BigIron RX Series Configuration Guide53-1001986-01Displaying IPv4 IS-IS information28The level-1 | level-2 parameter applies the change to only the level you specify. If you do not usethis parameter, the change applies to both levels.Displaying IPv4 IS-IS informationYou can display the following information:• The active configuration (the IS-IS commands in the running-config) – refer to “Displaying theIS-IS configuration in the running-config” on page 880• Name mappings – “Displaying the name mappings” on page 880• Neighbor information – “Displaying neighbor information” on page 881• Neighbor adjacency changes – “Displaying IS-IS Syslog messages” on page 882• Interface information – “Displaying interface information” on page 883• Route information – “Displaying route information” on page 886• LSP database entries – “Displaying LSP database entries” on page 887• Traffic statistics – “Displaying traffic statistics” on page 890• Error statistics – “Displaying error statistics” on page 891Displaying the IS-IS configuration in the running-configYou can display the global IS-IS configuration commands that are in effect on the device using thefollowing CLI method.NOTEThe running-config does not list the default values. Only commands that change a setting or addconfiguration information are displayed.To list the global IS-IS configuration commands in the device’s running-config, enter the followingcommand at any level of the CLI.BigIron RX# show isis configrouter isisnet 20.00e0.5200.0001.00endThe running-config shown in this example contains the command that enables IS-IS and acommand that configures a NET.To display the interface configuration information in the running-config, enter one of the followingcommands at any level of the CLI.• show running-config• write terminalSyntax: show isis configDisplaying the name mappingsTo display the mappings, enter the following command at any level of the CLI.