Static Route Configuration Limits

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

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

A9KMOD80TR, A9K24X10GETR, ASR 9000 specifications

Cisco Systems has long been a leader in networking technology, providing cutting-edge solutions for service providers and enterprise organizations alike. Among their standout products is the Cisco ASR 9000 Series Aggregation Services Routers, notably the A9K24X10GETR and the A9KMOD80TR models. These routers are engineered to deliver unmatched performance, scalability, and versatility for networks that require high bandwidth and low latency.

The Cisco ASR 9000 Series is built for the needs of today's complex service provider and enterprise networks. A significant feature of the A9K24X10GETR is its 24-port 10-Gigabit Ethernet module. This functionality allows for high-density connectivity, making it ideal for aggregating numerous connections to different parts of a network while maintaining optimal performance. Whether used for Internet service providers delivering high-speed connectivity or for enterprises looking to connect multiple branches, the A9K24X10GETR provides robust and reliable data transmission.

Further enhancing the capabilities of the ASR 9000 is the A9KMOD80TR module, which supports an extensive range of services. This module is designed to run a variety of technologies, including Layer 2 and Layer 3 services, MPLS (Multiprotocol Label Switching), and IPv6. Its ability to integrate seamlessly into existing infrastructures while providing the advanced features customers demand makes it an invaluable asset for network engineering teams.

Another cutting-edge technology present in the ASR 9000 Series is its support for eBGP (External Border Gateway Protocol), which plays a critical role in managing traffic across multiple networks. The routers are equipped with advanced telemetry features, empowering operators with real-time insights into network performance and health. Additionally, they come with integrated security features that protect against DDoS threats and other vulnerabilities.

In summary, Cisco's ASR 9000 Series, particularly the A9K24X10GETR and A9KMOD80TR, combines high-density connections, extensive service support, and advanced security and telemetry capabilities. These routers are perfect for demanding environments where reliable performance and adaptability are crucial. With their focus on innovation and performance, Cisco continues to shape the future of networking technology.

Cisco Systems ASR 9000, A9KMOD80TR Static Route Configuration Limits, IS-IS Configuration Limits

Models: A9KMOD80TR A9K24X10GETR ASR 9000

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