Cisco Systems ASR 9000 Static Route Configuration Limits, IS-IS Configuration Limits, 4000, 4-20

Chapter 4 Configuring Additional Router Features

Configuration Limiting

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

Static Route Configuration Limits

Table 4-4summarizes the maximum limits for static routes, including the commands used to display and change the limits.

Table 4-4	Static Route Configuration Limits and Commands
		Default	Absolute	Configuration Command
		Maximum	Maximum	(Static Router Configuration	Show Current Settings Command
Feature Limit Description		Limit	Limit	Mode)	(EXEC or Global Configuration Mode)
Maximum static IPv4 routes		4000	40,000	maximum path ipv4 n	show running-config router static

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 4-5summarizes the maximum limits for Intermediate System to Intermediate System (IS-IS) routing protocol, including the commands used to display and change the limits.

Table 4-5	IS-IS Configuration Limits and Commands
		Default	Absolute		Show Current Settings
		Maximum	Maximum	Configuration Command	Command
Feature Limit Description		Limit	Limit	(Address Family Configuration Mode)	(EXEC Mode)
Maximum number of prefixes		10,000	28,000	maximum-redistributed-prefixes n	show isis adjacency
redistributed into IS-IS
Number of active parallel paths		8	32	maximum-paths n	show isis route
for each route on a Cisco ASR
9000 Series Router

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

	Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
4-20	OL-17502-01