Users Guide

Table Of Contents
debug isis spf-triggers
Enable debugging on the events that triggered IS-IS shortest path first (SPF) events for debugging purposes.
Syntax
debug isis [vrf vrf-name] spf-triggers
To turn off debugging, use the no debug isis [vrf vrf-name] spf-triggers command.
Parameters
vrf
vrf-name
(OPTIONAL) Enter the keyword vrf followed by the name of the VRF to
enable debugging information on IS-IS corresponding to that VRF. This information
contains SPF trigger detail tied to the VRF that you specify. When SPF is triggered,
this debugging information is displayed.
Command Modes EXEC Privilege
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Added support for VRF. Introduced on the S6000-ON.
9.5(0.1) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.11.1 Introduced on the Z9000.
6.3.1.0 Introduced.
debug isis update-packets
Enable debugging on link state PDUs (LSPs) that a router detects.
Syntax
debug isis [vrf vrf-name] update-packets [interface]
To turn off debugging, use the no debug isis update-packets [interface] command.
Parameters
vrf
vrf-name
(OPTIONAL) Enter the keyword vrf followed by the name of the VRF to enable the
debugging information on IS-IS. This information contains updates from neighbors
tied to the VRF that you specify. This command displays the debugging details of
the received LSPs from the neighbors.
interface
(OPTIONAL) Identifies the interface type and the interface information:
For a 1-GigabitEthernet interface, enter the keyword GigabitEthernet then
the slot/port information.
For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
For a port channel interface, enter the keywords port-channel then a
number.
Intermediate System to Intermediate System (IS-IS) 751