06-Layer 3—IP Services Configuration Guide

HomeSupportResource CenterNFVH3C VSRH3C VSRTechnical DocumentsConfigureConfiguration GuidesH3C VSR Series Virtual Services Routers Configuration Guides(V7)-R0621-6W30006-Layer 3—IP Services Configuration Guide
09-Adjacency table configuration
Title Size Download
09-Adjacency table configuration 46.22 KB

Displaying the adjacency table

About the adjacency table

The adjacency table stores information about directly connected neighbors for IP forwarding. The neighbor information in this chapter refers to non-Ethernet neighbor information.

This table is not user configurable. The neighbor information is generated, updated, and deleted by link layer protocols through negotiation (such as PPP dynamic negotiation) or through manual configuration. An adjacency entry includes the following information:

·     Neighbor network layer address (next hop).

·     Output interface.

·     Link layer protocol type.

·     Link layer address. This field is not available for PPP.

When forwarding an IP packet, the device performs the following tasks:

·     Searches the FIB to find the output interface and next hop.

·     Uses the output interface and next hop address to search the adjacency table for link layer forwarding information.

 

 

 

NOTE:

Ethernet and non-Ethernet neighbor information is stored and managed together.

Display and maintenance commands for adjacency table

Execute display commands in any view.

 

Task

Command

Display IPv4 adjacency table information.

In standalone mode:

display adjacent-table { all | physical-interface interface-type interface-number | routing-interface interface-type interface-number } [ count | verbose ]

In IRF mode:

display adjacent-table { all | physical-interface interface-type interface-number | routing-interface interface-type interface-number | slot slot-number } [ count | verbose ]

Display IPv6 adjacency table information.

In standalone mode:

display ipv6 adjacent-table { all | physical-interface interface-type interface-number | routing-interface interface-type interface-number } [ count | verbose ]

In IRF mode:

display ipv6 adjacent-table { all | physical-interface interface-type interface-number | routing-interface interface-type interface-number | slot slot-number } [ count | verbose ]