Summary Of Bscn Router Commands
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A D D E N D U M
D
Summary of BSCN Router
Commands
NOTE
This document is an addendum to Appendix D, “Summary of BSCN Router Commands,”
in the Building Scalable Cisco Networks book from Cisco Press. This material supplements
the online chapter, “Configuring IS-IS Protocol,” which has been made available to you
on the Cisco Press website in accordance with the latest Building Scalable Cisco
Internetworks (BSCI) objectives.
Table D-9 covers IS-IS IP configuration commands.
Table D-9
IP Configuration Commands
Command
Meaning
router isis
Defines Integrated IS-IS as an IP routing protocol and enters
configuration mode for that protocol.
net
Assigns a NET to the router to identify it for IS-IS.
ip router isis
Enables interfaces that are to use IS-IS to distribute their IP
information.
is-type
Defines which IS-IS level (level-1 | level-1-2 | level-2-only) a
router will operate as.
isis priority
Changes the IS-IS router priority on the interface to influence the
DR election.
isis circuit-type
Defines which level of IS-IS adjacency (level-1 | level-1-2 | level-
2-only) will be established over an interface.
isis metric
Defines the IS-IS metric to be used on an interface. The default
is 10.
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3 Appendix D: Summary of BSCN Router Commands
Table D-10 covers CLNS configuration commands.
Table D-10
CLNS Configuration Commands
Command
Meaning
clns routing
Enables routing of CLNS packets
clns host
Defines a static host name to CLNS address mapping
Table D-11 covers general IS-IS and CLNS commands.
Table D-11
General IS-IS and CLNS Commands
Command
Meaning
show clns route
Displays all the CLNS destinations to which this router knows
how to route packets.
show isis topology
Displays a list of the paths to all connected IS-IS routers.
show isis route
Displays the IS-IS Level 1 forwarding table for IS-IS–learned
routes.
which-route
Displays which next-hop IS-IS router will be used to get to a
destination.
show clns neighbors
Displays the neighbor ISs—that is, the routers with which this
router has IS-IS adjacencies. ES neighbors, if there are any, are
also displayed.
show clns
Displays general information about the CLNS network.
show clns protocol
Displays information for the specific IS-IS processes in the
router.
show clns interface
Displays CLNS-specific information about interfaces running
IS-IS.
show clns is-neighbors
Displays IS-IS–related information for IS-IS router adjacencies.
show isis database
Displays the contents of the IS-IS link-state database.
clear isis
Forces IS-IS to refresh its link-state database and recalculate all
routes.
show isis spf-log
Displays how often and why the router has run a full SPF
calculation.
debug isis adj-packets
Displays IS-IS adjacency-related packets.
debug isis update-packets
Displays IS-IS update-related packets.
