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

Configuration Guide - IP Unicast Routing

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of IP Unicast Routing, including IP Routing, Static Route, RIP, RIPng, OSPF, OSPFv3, IPv4 IS-IS, IPv6 IS-IS, BGP, Routing Policy, and PBR.
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).
Configuring BGP Soft Reset

Configuring BGP Soft Reset

Context

After changing a BGP import policy, you must reset BGP connections for the new import policy to take effect. This, however, interrupts these BGP connections temporarily. BGP route-refresh allows the system to softly reset BGP connections to refresh a BGP routing table without tearing down any BGP connection. If a device's peer does not support route-refresh, configure the device to remain all routing updates received from the peer so that the device can refresh its routing table without tearing down the BGP connection with the peer.

Procedure

  • If a device's peer supports route-refresh, configure the device to softly reset the BGP connection with the peer and update the BGP routing table.

    1. Run system-view

      The system view is displayed.

    2. Run bgp { as-number-plain | as-number-dot }

      The BGP view is displayed.

    3. (Optional) Run peer { ipv4-address | group-name } capability-advertise route-refreshpeer ipv6-address capability-advertise { 4-byte-as | route-refresh }or run:

      Route-refresh is enabled.

      By default, route-refresh is enabled.

    4. Run commit

      The configuration is committed.

    5. Run quit

      Return to the system view.

    6. Run quit

      Return to the user view.

    7. Run refresh bgp [ vpn-instance vpn-instance-name ipv4-family | vpnv4 ] { all | ipv4-address | group group-name | external | internal } { export | import }
      or run:
      refresh bgp ipv6 { all | group group-name | ipv6-address | external | internal } { export | import }

      BGP soft reset is configured.

  • If a device's peer does not support route-refresh, configure the device to remain all routing updates received from the peer so that the device can refresh its routing table without tearing down the BGP connection with the peer.

    1. Run system-view

      The system view is displayed.

    2. Run bgp { as-number-plain | as-number-dot }

      The BGP view is displayed.

    3. Enter the corresponding address family view based on network type to configure BGP devices on networks.

      • Run ipv4-family unicast

        The BGP-IPv4 unicast address family view is displayed.

      • Run ipv4-family multicast

        The BGP-IPv4 multicast address family view is displayed.

      • Run ipv4-family vpnv4 [ unicast ]

        The BGP-VPNv4 address family view is displayed.

      • Run ipv4-family vpn-instance vpn-instance-name

        The BGP-VPN instance IPv4 address family view is displayed.

      • Run ipv6-family [ unicast ]

        The BGP-IPv6 unicast address family view is displayed.

      • Run ipv6-family vpnv6 [ unicast ]

        The BGP-VPNv6 address family view is displayed.

      • Run ipv6-family vpn-instance vpn-instance-name

        The BGP-VPN instance IPv6 address family view is displayed.

      If the peer keep-all-routes command is used on the device for the first time, the sessions between the device and its peers are reestablished.

      The refresh bgp command takes effect when the peer keep-all-routes command is used on the device supporting route-refresh.

    4. Run peer { ipv4-address | group-name | ipv6-address } keep-all-routes

      The device is configured to store all the routing updates received from its peers or peer groups.

      By default, the device stores only the routing updates that are received from peers or peer groups and match a configured import policy.

    5. Run commit

      The configuration is committed.

Translation
Download
Updated: 2019-04-20

Document ID: EDOC1100074760

Views: 57532

Downloads: 63

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