EIGRP 'Named Mode' Essentials
EIGRP (Enhanced Interior Gateway Routing Protocol) 'Named Mode' represents a significant evolution in EIGRP's design, offering distinct advantages over the traditional 'Classic Mode.' Let's explore the key aspects of 'Named Mode':
Named Mode Features:
- 'Named Mode' introduces several innovations, including:
- 64-bit Mode: This allows for finer metric granularity, enhancing EIGRP's ability to make more precise routing decisions.
- Address Family (AF) Mode: EIGRP in 'Named Mode' operates in an Address Family-centric manner, allowing for efficient management of routing information for IPv4 and IPv6 simultaneously.
Consolidation of Configuration Stanzas:
- One of the notable benefits of 'Named Mode' is the consolidation of EIGRP configuration stanzas. This simplifies the configuration process and enhances manageability, especially in complex networks.
Benefits of 'Named Mode':
- EIGRP 'Named Mode' offers distinct advantages, including:
- 64-bit Metric Granularity: This feature allows for more precise control over routing decisions by offering a finer level of metric granularity.
- SHA-256 Authentication: 'Named Mode' supports the robust SHA-256 authentication method, enhancing network security.
Enabling 'Named Mode':
To enable 'Named Mode' in EIGRP, follow these steps:
- Enter global configuration mode with the command
router eigrp [name]. - Specify the Address Family (AF) using the command
address-family [ipv4/ipv6] autonomous-system [#].
Hitless Upgrade of Existing 'Classic Mode' Configurations:
For networks that currently operate in 'Classic Mode' but wish to transition to 'Named Mode,' EIGRP offers a hitless upgrade mechanism. This allows for a seamless migration without disrupting network operations. The upgrade process is initiated with the command eigrp upgrade-cli.
In summary, EIGRP 'Named Mode' represents an advanced approach to routing in EIGRP, offering enhanced features, improved manageability, and greater security. Transitioning to 'Named Mode' can be accomplished smoothly, making it a valuable option for evolving network requirements.