5.2 Introduction to Named EIGRP Configuration

EIGRP named configuration (as opposed to EIGRP classic configuration) was developed in Cisco IOS 12.2.(33) to both simplify and centralized configurations, and fix metric calculation problems associated with high-bandwidth links.

EIGRP named configuration is available in IOS versions 15.0(1)M, 12.2(33)SRE, and 12.2(33)XNE and subsequent releases

Here are a few key points about EIGRP named configuration:

  1. Where classic configuration required commands to be entered in global, router, and interface configurations modes, EIGRP named configuration mode centralizes all configuration, thereby reducing the likelihood of configuration errors.
  2. Where classic EIGRP does not scale beyond 1 Gbps links because it uses 32-bit metrics, EIGRP named configuration scales to links and port-channels up to 4 Tbps using wide-metric 64-bit calculations and RIB scaling methods.
  3. Where command syntax is different between EIGRP (IPv4) and EIGRPv6, EIGRP named configuration unifies IPv4 and IPv6 configuration.