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FINAL DRAFT —Cisco Confidential
4-21
Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-17502-01
Chapter 4 Configuring Additional Router Features
Configuration Limiting
RP/0/RSP1/CPU0:router(config-isis-af)# maximum-paths 10
RP/0/RSP1/CPU0:router(config-isis-af)# maximum-redistributed-prefixes 12000
RP/0/RSP1/CPU0:router(config-isis-af)# commit
RP/0/RSP1/CPU0:Mar 30 14:11:07 : config[65739]: %LIBTARCFG-6-COMMIT : Configuration
committed by user 'cisco'. Use 'show configuration commit changes 1000000535' to view
the changes.
RP/0/RSP1/CPU0:router(config-isis-af)#
OSPFv2 and v3 Configuration Limits
Table 4-6 summarizes the maximum limits for Open Shortest Path First (OSPF) protocol, including the
commands used to display and change the limits.
Examples
The following examples illustrate OSPF configuration limits:
• Maximum Interfaces for Each OSPF Instance: Example, page 4-21
• Maximum Routes Redistributed into OSPF: Example, page 4-22
• Number of Parallel Links (max-paths): Example, page 4-23
Maximum Interfaces for Each OSPF Instance: Example
In the following example, the show ospf command is used to display the maximum number of OSPF
interfaces:
RP/0/RSP1/CPU0:router# show ospf
Ta ble 4-6 OSPFv2 Configuration Limits and Commands
Feature Limit
Description
Default
Maximum
Limit
Absolute
Maximum
Limit
Configuration Command
(Router Configuration Mode)
Show Current Settings Command
(EXEC Mode)
Maximum number of
interfaces that can be
configured for an
OSPF instance
255 1024 maximum interfaces n show ospf
Maximum routes
redistributed into
OSPF
10,000 4294967295 maximum redistributed-prefixes
n
show ospf
Note The maximum number of
redistributed prefixes
appear only if
redistribution is
configured.
Maximum number of
parallel routes
(maximum paths) on
Cisco
ASR 9000
Series routers
32 32 maximum paths n show running-config router ospf
Note This command shows only
changes to the default
value. If the maximum
paths command does not
appear, the router is set to
the default value.