No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

CLI-based Configuration Guide - IP Unicast Routing

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document describes the concepts and configuration procedures of IP Service features on the device, and provides the configuration examples.
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
FIB Query and Maintenance

FIB Query and Maintenance

Context

NOTE:

Unless otherwise stated, the FIB in this document refers to unicast FIB.

A device selects routes according to the routing table and forwards packets according to the FIB. If the FIB is overloaded, new active routes cannot be delivered to the FIB, affecting packet forwarding.

Procedure

  • Check FIB entries.

    • Run the display fib [ slot-id ] [ vpn-instance vpn-instance-name ] [ verbose ] command to check IPv4 FIB entries.
    • Run the display fib [ vpn-instance vpn-instance-name ] acl acl-number [ verbose ] command to check IPv4 FIB entries that match a specified ACL rule.
    • Run the display fib [ vpn-instance vpn-instance-name ] ip-prefix prefix-name [ verbose ] command to check IPv4 FIB entries that match a specified IP prefix list.
    • Run the display fib [ slot-id ] [ vpn-instance vpn-instance-name ] destination-address1 [ verbose ] command to check IPv4 FIB entries that match a specified destination IP address.
    • Run the display fib [ slot-id ] [ vpn-instance vpn-instance-name ] destination-address1 destination-mask1 [ verbose ] command to check IPv4 FIB entries that exactly match a specified destination IP address and mask.
    • Run the display fib [ slot-id ] [ vpn-instance vpn-instance-name ] destination-address1 longer [ verbose ] command to check all IPv4 FIB entries that match destination IP addresses in the natural mask range.
    • Run the display fib [ slot-id ] [ vpn-instance vpn-instance-name ] destination-address1 destination-mask1 longer [ verbose ] command to check all IPv4 FIB entries that match destination IP addresses in a specified mask range.
    • Run the display fib [ slot-id ] [ vpn-instance vpn-instance-name ] destination-address1 destination-mask1 destination-address2 destination-mask2 [ verbose ] command to check IPv4 FIB entries that match destination IP addresses in the range of destination-address1 destination-mask1 and destination-address2 destination-mask2.
    • Run the display fib [ vpn-instance vpn-instance-name ] next-hop ip-address command to check IPv4 FIB entries that match a specified next-hop IP address.
    • Run the display fib [ slot-id ] [ vpn-instance vpn-instance-name ] statistics command to check the total number of IPv4 FIB entries.
    • Run the display fib statistics all command to check IPv4 FIB entry statistics.
    • Run the display ipv6 fib [ slot-id ] [ vpn-instance vpn-instance-name ] [ verbose ] command to check IPv6 FIB entries.
    • Run the display ipv6 fib [ slot-id ] [ vpn-instance vpn-instance-name ] ipv6-address [ verbose ] command to check IPv6 FIB entries that match a specified destination IPv6 address.
    • Run the display ipv6 fib [ slot-id ] [ vpn-instance vpn-instance-name ] ipv6-address prefix-length [ verbose ] command to check IPv6 FIB entries that exactly match a specified destination IPv6 address and mask.
    • Run the display ipv6 fib [ slot-id ] [ vpn-instance vpn-instance-name ] statistics command to check the total number of IPv6 FIB entries.
    • Run the display ipv6 fib [ slot-id ] statistics all command to check IPv6 FIB entry statistics.

  • Maintain the FIB.

    • Configure periodic refresh of FIB entries.
      1. Run system-view

        The system view is displayed.

      2. Run undo fib regularly-refresh disable

        Periodic refresh of FIB entries is enabled.

        By default, periodic refresh of FIB entries is disabled.

      3. You can run either of the following commands according to the actual requirements.

        • Run fib regularly-refresh { interval interval [ entry-number entry-number ] | entry-number entry-number }

          The interval for refreshing FIB entries and the number of FIB entries refreshed at an interval are configured.

          By default, the interval for refreshing FIB entries is 1 second and the number of FIB entries refreshed at an interval is 100.

        • Run fib regularly-refresh start-time start-time

          The time at which FIB entries are refreshed is configured.

          By default, FIB entries are refreshed at 01:00 a.m.

    • Configure periodic refresh of IPv6 FIB entries.
      1. Run system-view

        The system view is displayed.

      2. Run undo ipv6 fib regularly-refresh disable

        Periodic refresh of IPv6 FIB entries is enabled.

      3. You can run either of the following commands according to the actual requirements.

        • Run ipv6 fib regularly-refresh interval interval

          The interval for refreshing IPv6 FIB entries is configured.

          By default, the interval for refreshing IPv6 FIB entries is 1 second.

        • Run ipv6 fib regularly-refresh entry-number entry-number

          The number of IPv6 FIB entries refreshed at an interval is configured.

          By default, the number of IPv6 FIB entries refreshed at an interval is 100.

        • Run ipv6 fib regularly-refresh start-time start-time

          The time at which IPv6 FIB entries are refreshed is configured.

          By default, FIB entries are refreshed at 00:00 a.m.

Translation
Download
Updated: 2019-05-20

Document ID: EDOC1100034072

Views: 110730

Downloads: 160

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next