Reference Guide

506 | Intermediate System to Intermediate System
www.dell.com | support.dell.com
Figure 23-9. Command Example: show isis database
Debug IS-IS
Enter the debug isis command in EXEC Privilege mode to debug all IS-IS processes.
Use the following commands for specific IS-IS debugging.
Command Syntax Command Mode Purpose
debug isis
EXEC Privilege View all IS-IS information.
debug isis adj-packets [interface] EXEC Privilege View information on all adjacency-related activity
(for example, hello packets that are sent and
received).
To view specific information, enter one of the
following optional parameters:
• interface: Enter the type of interface and slot/port
information to view IS-IS information on that
interface only.
debug isis local-updates [interface] EXEC Privilege View information about IS-IS local update packets.
To view specific information, enter one of the
following optional parameters:
• interface: Enter the type of interface and slot/port
information to view IS-IS information on that
interface only.
debug isis snp-packets [interface] EXEC Privilege View IS-IS SNP packets, include CSNPs and
PSNPs.
To view specific information, enter one of the
following optional parameters:
• interface: Enter the type of interface and slot/port
information to view IS-IS information on that
interface only.
debug isis spf-triggers
EXEC Privilege View the events that triggered IS-IS shortest path
first (SPF) events for debugging purposes.
FTOS#show isis database
IS-IS Level-1 Link State Database
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
B233.00-00 0x00000003 0x07BF 1074 0/0/0
eljefe.00-00 * 0x0000000A 0xF963 1196 0/0/1
eljefe.01-00 * 0x00000001 0x68DF 1108 0/0/0
eljefe.02-00 * 0x00000001 0x2E7F 1099 0/0/0
Force10.00-00 0x00000002 0xD1A7 1088 0/0/0
IS-IS Level-2 Link State Database
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
B233.00-00 0x00000006 0xC38A 1110 0/0/0
eljefe.00-00 * 0x0000000E 0x53BF 1196 0/0/1
eljefe.01-00 * 0x00000001 0x68DF 1108 0/0/0
eljefe.02-00 * 0x00000001 0x2E7F 1099 0/0/0
Force10.00-00 0x00000004 0xCDA9 1093 0/0/0
FTOS#
when overload bit
is set, 1 is listed in
the OL column.