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 V200R009

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 a BGP Confederation

Configuring a BGP Confederation

Context

A confederation divides an AS into sub-ASs. Within each sub-AS, IBGP peers establish full-mesh connections or have an RR configured. Sub-ASs establish EBGP connections. On a large BGP network, configuring a confederation can reduce the number of IBGP connections, simplify routing policy management, and improve route advertisement efficiency.

Procedure

  1. Run system-view

    The system view is displayed.

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

    BGP is enabled and the BGP view is displayed.

  3. Run confederation id { as-number-plain | as-number-dot }

    A confederation ID is configured.

    By default, no BGP confederation is configured.

    An old speaker that has a 2-byte AS number cannot be in the same confederation with a new speaker that has a 4-byte AS number. Otherwise, a routing loop may occur. This is because the AS4_Path attribute does not support confederations.

  4. Run confederation peer-as { as-number-plain | as-number-dot } &<1-32>

    A sub-AS number is configured for a confederation.

    By default, no sub-AS number of the confederation is configured.

  5. (Optional) Run confederation nonstandard

    Confederation compatibility is configured.

    By default, confederations comply with RFC 3065.

Verifying the Configuration

  • Run the display bgp peer [ ipv4-address ] verbose command to check detailed information about BGP peers.
  • Run the display bgp routing-table [ ipv4-address [ { mask | mask-length } [ longer-prefixes ] ] ] command to check routing information in a BGP routing table.
Translation
Download
Updated: 2019-05-17

Document ID: EDOC1000174069

Views: 111488

Downloads: 250

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