Alteon OS Application Guide

Precedence

You can set a priority to a route map by specifying a precedence value with the following command:

>> /cfg/l3/rmap <x>/pre

(Specify a precedence)

The smaller the value the higher the precedence. If two route maps have the same precedence value, the smaller number has higher precedence.

Configuration Overview

To configure route maps, you need to do the following:

1. Define network filter.

>> # /cfg/l3/nwf 1

addr <IP address>

(Specify a network filter number)

>> IP Network Filter 1#

(Specify network address)

>> IP Network

Filter 1#

mask <IP mask>

(Specify network mask)

>> IP Network

Filter 1#

ena

(Enable network filter)

Enter a filter number from 1 to 256. Specify the IP address and subnet mask of the network that you want to match. Enable the network filter. You can distribute up to 256 network filters among 32 route maps each containing eight access lists.

2. (Optional) Define the criteria for the access list and enable it.

Specify the access list and associate the network filter number configured in Step 1.

>> # /cfg/l3/rmap 1

(Specify a route map number)

>> IP Route Map 1# alist 1

(Specify the access list number)

>> IP Access List 1# nwf 1

(Specify the network filter number)

>> IP Access List 1# metric

(Define a metric)

>> IP Access List 1# action deny

(Specify action for the access list)

>> IP Access List 1# ena

(Enable the access list)

Steps 2 and 3 are optional, depending on the criteria that you want to match. In Step 2, the net- work filter number is used to match the subnets defined in the network filter. In Step 3, the autonomous system number is used to match the subnets. Or, you can use both (Step 2 and Step 3) criteria: access list (network filter) and access path (AS filter) to configure the route maps.

176 „ Chapter 11: Border Gateway Protocol

42C4911, January 2007

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Nortel Networks 42C4911 manual Precedence, Configuration Overview, Define network filter
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42C4911 specifications

Nortel Networks 42C4911 is a key hardware component designed to meet the needs of modern telecommunications infrastructure. As part of Nortel's extensive portfolio, the 42C4911 has made a significant impact on network design and operation, particularly in enterprises requiring reliable and efficient communication solutions.

One of the standout features of the 42C4911 is its modularity. This allows for flexible configurations and upgrades, enabling organizations to adapt to changing technology requirements and business demands. The design philosophy behind the 42C4911 emphasizes scalability, allowing users to start with a basic setup and expand it as their networking needs grow. This feature is particularly appealing to medium and large enterprises that anticipate increased data and communication requirements over time.

In terms of technology, the 42C4911 supports various telecommunications standards, making it versatile for multiple applications. It typically integrates with other Nortel equipment and can work with third-party devices, ensuring seamless interoperability across different platforms. This is critical as organizations look to create unified communications systems that can handle voice, data, and video traffic efficiently.

The 42C4911 is known for its robust performance and reliability. It is designed to operate continuously under demanding conditions, which is essential for organizations that rely on constant connectivity for their operations. Its built-in redundancy features help safeguard against potential failures, thus enhancing the overall stability of the network. This reliability is further complemented by Nortel's commitment to high-quality manufacturing standards, ensuring that users receive a durable and efficient product.

Security is another major consideration for any networking device, and the 42C4911 provides advanced security features to protect sensitive data. With increasing cybersecurity threats, organizations prioritize devices that offer strong encryption and access control mechanisms. The 42C4911 addresses these needs while facilitating secure communication channels for users, which is essential in today's increasingly interconnected world.

Overall, the Nortel Networks 42C4911 stands out as a versatile and powerful component in the telecommunications landscape. Its modular design, compatibility with diverse technologies, reliability, and emphasis on security make it an appealing choice for organizations looking to enhance their networks. As companies continue to navigate the complexities of communication, devices like the 42C4911 play a crucial role in ensuring that they remain connected and efficient.
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