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FINAL DRAFT —Cisco Confidential
4-20
Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-17502-01
Chapter 4 Configuring Additional Router Features
Configuration Limiting
Static Route Configuration Limits
Table 4-4 summarizes the maximum limits for static routes, including the commands used to display and
change the limits.
Examples
In the following example, the maximum number of static IPv4 routes is changed to 5000 and the new
configuration appears.
RP/0/RSP1/CPU0:router# configure
RP/0/RSP1/CPU0:router(config)# router static
RP/0/RSP1/CPU0:router(config-static)# maximum path ipv4 5000
RP/0/RSP1/CPU0:router(config-static)# commit
RP/0/RSP1/CPU0:router(config-static)# show running-config router static
router static
maximum path ipv4 5000
address-family ipv4 unicast
0.0.0.0/0 172.29.52.1
!
!
IS-IS Configuration Limits
Table 4-5 summarizes the maximum limits for Intermediate System to Intermediate System (IS-IS)
routing protocol, including the commands used to display and change the limits.
Examples
In the following example, the maximum number of active parallel paths for each route is increased to
10, and the maximum number of prefixes redistributed into IS-IS is increased to 12,000:
RP/0/RSP1/CPU0:router# configure
RP/0/RSP1/CPU0:router(config)# router isis 100 address-family ipv4
Ta ble 4-4 Static Route Configuration Limits and Commands
Feature Limit Description
Default
Maximum
Limit
Absolute
Maximum
Limit
Configuration Command
(Static Router Configuration
Mode)
Show Current Settings Command
(EXEC or Global Configuration Mode)
Maximum static IPv4 routes 4000 40,000 maximum path ipv4 n show running-config router static
Ta ble 4-5 IS-IS Configuration Limits and Commands
Feature Limit Description
Default
Maximum
Limit
Absolute
Maximum
Limit
Configuration Command
(Address Family Configuration Mode)
Show Current Settings
Command
(EXEC Mode)
Maximum number of prefixes
redistributed into IS-IS
10,000 28,000 maximum-redistributed-prefixes n show isis adjacency
Number of active parallel paths
for each route on a Cisco
ASR
9000 Series Router
8 32 maximum-paths n show isis route