Configure BGP Global Parameters

Configure BGP global attributes before creating BGP peers. You can configure the local AS #, optional MD5 secret and router ID, prefix advertisements, and BGP timers.
  1. Configure local AS number.
    1. Select
      Map
      Claimed Devices
      Select a device
      Routing
      BGP/Peers
      BGP Global Config for ION device
      Edit
      .
    2. On the
      Info
      tab, enter a
      Local AS Number
      between 1 and 4294967295 or as A.B, where A and B are both numbers between 1 and 4294967295.
      The web interface displays converted values of the AS number entered. If the number entered is an A.B format, the web interface displays the corresponding 32-bit conversion below the entered value. If the number entered is a 32-bit format, the web interface displays the corresponding A.B value below the entered value. The
      Local AS Number
      is mandatory.
    3. (Optional)
      Enter an
      MD5 Secret
      between 1 and 32 characters.
      The default value is 0.
    4. (Optional)
      For
      Router ID
      , enter the IP address of the ION device.
      The router ID is an IPv4 address and is the BGP ID of the ION device.
  2. (Optional)
    Configure prefixes to advertise to WAN and LAN.
    Branch ION devices can learn or advertise prefixes based on the scope configured. A branch ION device does not advertise routes learned on one BGP peer to another BGP peer. The device advertises only LAN networks, static routes, and interface addresses. To advertise any of these prefixes, set the
    Scope
    to
    Global
    when configuring a BGP peer.
    Configure prefix advertisement in any of the following ways:
    • Default—The device advertises only the default prefix (0.0.0.0/0). This is the default setting for LAN prefix advertisement.
    • Unaggregated—The device advertises prefixes as is.
    • Auto-Aggregated—The device summarizes the unaggregated prefixes into the largest possible blocks and advertises the prefixes.
    The device advertises only
    Default
    ,
    Unaggregated
    or
    Auto-Aggregated
    to the LAN.
    • None (--)—The device does not advertise prefixes. This is the default setting for WAN prefix advertisement.
    • Manually Aggregated—You can configure a set of prefixes which the device aggregates and advertises.
    • Manual Summary Aggregate Only—You can configure a set of prefixes which the device summarizes into the largest possible blocks and advertises these prefixes.
  3. (Optional)
    Configure advanced options.
    • Keepalive Time
      —Enter a keep-alive time between 3 - 200 seconds. If you have configured a BGP peer, the device uses the value specified in the BGP peer configuration. If you do not configure a BGP peer or do not specify a value in the BGP global configuration, the keep-alive time defaults to 30 seconds.
    • Hold Time
      —Enter a hold time between 3 - 600 seconds. The hold time needs to be three times greater than the keep-alive time. If you have configured a BGP peer, the device uses the value specified in the BGP peer configuration. If you have not configured a BGP peer, the device uses the value from the BGP global configuration. If you do not configure a BGP peer or do not specify a value in the BGP global configuration, the Hold Time defaults to 90 seconds.
    • Multihop Limit
      —Enter a multi-hop limit between 1 - 255 hops. The default is 1 hop.
    • Max Paths
      —Enter a max path between 1 - 255. The default is 1.
    • Advertise Interval
      — Enter an advertisement interval between 0 - 300 seconds. The default is 1 second.
    • Peer Retry Time
      —Enter a peer retry time between 0 - 65535 seconds. The default is 120 seconds.
    • Graceful Restart
      —By default
      graceful restart
      is
      Off
      . Select
      On
      to change the default setting.
    • StalePath Time
      —Enter a stalepath time between 1 - 3600 seconds. The default is 120 seconds.
    • Admin Distance
      —Enter a value between 1 - 255. The device sets the default
      Admin Distance
      of all learned prefixes to 20. The
      Admin Distance
      configured for a static route overrides the
      Admin Distance
      configured for a BGP route.
  4. Review the BGP global configuration.
    The
    Summary
    tab displays the BGP global configuration. Make changes if needed and
    Save & Exit
    .

Recommended For You