Ospfv2 And V3 Configuration Limits; Examples - Cisco ASR 9000 Getting Started Manual

Chapter 4 Configuring Additional Router Features
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'.
the changes.
RP/0/RSP1/CPU0:router(config-isis-af)#

OSPFv2 and v3 Configuration Limits

Table 4-6
commands used to display and change the limits.
Table 4-6 OSPFv2 Configuration Limits and Commands
Default
Feature Limit Maximum
Description Limit
Maximum number of 255
interfaces that can be
configured for an
OSPF instance
Maximum routes 10,000
redistributed into
OSPF
Maximum number of 32
parallel routes
(maximum paths) on
Cisco ASR 9000
Series routers

Examples

The following examples illustrate OSPF configuration limits:
•
•
•
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
OL-17502-01
F I N A L D R A F T — C i s c o C o n f i d e n t i a l
summarizes the maximum limits for Open Shortest Path First (OSPF) protocol, including the
Absolute
Maximum
Limit
1024
4294967295
32
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
Use 'show configuration commit changes 1000000535' to view
Configuration Command
(Router Configuration Mode)
maximum interfaces n
maximum redistributed-prefixes
n
maximum paths n
Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
Configuration Limiting
Show Current Settings Command
(EXEC Mode)
show ospf
show ospf
Note The maximum number of
redistributed prefixes
appear only if
redistribution is
configured.
show running-config router ospf
This command shows only
Note
changes to the default
value. If the maximum
paths command does not
appear, the router is set to
the default value.
4-21