Reference Guide

debug isis
Enable debugging for all IS-IS operations.
S4820T
Syntax
debug isis
To disable debugging of IS-IS, use the no debug isis command.
Command Modes EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.11.1 Introduced on the Z9000.
Usage
Information
Entering debug isis enables all debugging parameters.
To display all debugging information in one output, use this command. To turn off debugging,
you normally enter separate no forms of each command. To disable all debug messages for IS-
IS at once, enter the
no debug isis command.
debug isis adj-packets
Enable debugging on adjacency-related activity such as hello packets that are sent and received on IS-IS adjacencies.
S4820T
Syntax
debug isis adj-packets [interface]
To turn off debugging, use the no debug isis adj-packets [interface]
command.
Parameters
interface (OPTIONAL) Identifies the interface type slot/port as one of the
following:
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE then the slot/port information.
• For a Gigabit Ethernet interface, enter the keyword
GigabitEthernet then the slot/port information.
• For a Port Channel interface, enter the keywords port-
channel then a number. The range is from 1 to 128.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
760