Chapter 6 Configuring the Internet Protocol

Disabling an Implicit Service for the Static Route Next Hop

Disabling an Implicit Service for the Static Route Next Hop

By default, the CSS establishes an implicit (or internal) service for the gateway address when a static route is defined. When you do not want the CSS to start an implicit service for the next hop of a static route, use the ip no-implicit-servicecommand. The ip no-implicit-servicecommand specifies that no implicit service is established to the next hop of the static route, which disables the internal service ICMP keepalive. In this case, if the ARP address for the next hop is not known to the CSS, the address will not appear in the routing table.

The purpose of the implicit service to the next hop of a static route is to monitor the availability of the next hop to forward data traffic. When the ip no-implicit-servicecommand is in effect, traffic is forwarded to the next hop even when the next hop is unavailable. Because of the possibility of data being lost if the next hop becomes unavailable, use of the ip no-implicit-servicecommand is strongly discouraged.

Note Static routes can sometimes appear in the CSS routing table even when you have an implicit service for the next hop address (the default setting) and the internal keepalive is down. When the CSS detects the ARP mapping for the next hop in the static route, the CSS continues to list that route in the routing table regardless of the state of the ICMP service keepalive (Down or Up).

When you implement the ip no-implicit-serviceglobal configuration command, this action does not affect previously configured static routes. The ip no-implicit-servicecommand affects only those static routes added after you enable the command. We recommend you reboot the CSS after you modify the configuration to ensure all static routes are the same, which is useful for network monitoring and troubleshooting. If you wish to stop the implicit service for a previously configured static route, then you must delete and reconfigure the static route.

 

Cisco Content Services Switch Routing and Bridging Configuration Guide

6-6

OL-8241-02

Page 151 Page 153
Page 152
Image 152
Cisco Systems OL-8241-02 manual Disabling an Implicit Service for the Static Route Next Hop
Page 151 Page 153

OL-8241-02 specifications

Cisco Systems OL-8241-02 is a significant component of Cisco's extensive portfolio, catering specifically to the needs of enterprise-level networking. This module is designed to provide advanced routing capabilities, aiding organizations in achieving robust connectivity and efficient data transmission across their networks. It is particularly popular among businesses that require reliable performance and scalability.

One of the main features of the OL-8241-02 module is its support for multiple protocols, including OSPF, EIGRP, and BGP, which allows for seamless integration into various network configurations. This flexibility ensures that organizations can adapt to evolving networking demands without undergoing complete infrastructure overhauls. Furthermore, the module includes advanced security features, such as IPsec VPN support and integrated firewall capabilities, enhancing overall network security and protecting sensitive data from potential threats.

Another noteworthy characteristic of the OL-8241-02 is its exceptional performance metrics. With high throughput rates and low latency, the module can handle significant amounts of data traffic without compromising on speed. This efficiency is particularly critical for businesses that rely heavily on real-time data applications, such as video conferencing and online collaboration tools.

The OL-8241-02 also incorporates cutting-edge technologies like Quality of Service (QoS), which prioritizes network traffic based on application requirements. This feature is essential for ensuring that critical applications receive the bandwidth they need, while less critical tasks can be deprioritized during peak usage times. Additionally, the module supports IPv6, which is vital for organizations looking to future-proof their network infrastructure amid the global transition from IPv4.

The ease of management is another highlight of the OL-8241-02, with user-friendly interfaces and compatibility with Cisco's robust management software. This capability allows IT teams to monitor performance metrics, troubleshoot issues, and configure settings with minimal complexity.

In summary, the Cisco Systems OL-8241-02 module stands out for its versatility, performance, and security features. Equipped with the ability to support various protocols, advanced security measures, and efficient traffic management, it proves to be a reliable choice for enterprises aiming to enhance their networking capabilities and ensure seamless operational continuity.
Top Page Image Contents