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Implementing IS-IS on Cisco IOS XR Software
Configuration Examples for Implementing IS-IS on Cisco IOS XR Software
RC-122
Cisco IOS XR Routing Configuration Guide
Configuration Examples for Implementing IS-IS on Cisco IOS XR
Software
This section provides the following configuration examples:
• Configuring Single-Topology IS-IS for IPv6: Example, page RC-122
• Configuring Multitopology IS-IS for IPv6: Example, page RC-123
• Redistributing IS-IS Routes Between Multiple Instances: Example, page RC-123
Configuring Single-Topology IS-IS for IPv6: Example
The following example shows single-topology mode being enabled, an IS-IS instance being created, the
NET being defined, IPv6 being configured along with IPv4 on an interface, and IPv4 link topology being
used for IPv6.
This configuration allows POS interface 0/3/0/0 to form adjacencies for both IPv4 and IPv6 addresses.
router isis isp
net 49.0000.0000.0001.00
address-family ipv6 unicast
single-topology
interface POS0/3/0/0
Step 10
set-attached-bit
Example:
RP/0/RP0/CPU0:router(config-isis-af)#
set-attached-bit
(Optional) Configures an IS-IS instance with an attached bit
in the Level 1 LSP.
Step 11
end
or
commit
Example:
RP/0/RP0/CPU0:router(config-isis-af)# end
or
RP/0/RP0/CPU0:router(config-isis-af)# commit
Saves configuration changes.
• When you issue the end command, the system prompts
you to commit changes:
Uncommitted changes found, commit them before
exiting(yes/no/cancel)?
[cancel]:
–
Entering yes saves configuration changes to the
running configuration file, exits the configuration
session, and returns the router to EXEC mode.
–
Entering no exits the configuration session and
returns the router to EXEC mode without
committing the configuration changes.
–
Entering cancel leaves the router in the current
configuration session without exiting or
committing the configuration changes.
• Use the commit command to save the configuration
changes to the running configuration file and remain
within the configuration session.
Command or Action Purpose