Bgp Tab

The BGP Tab is used in the Security Gateway Node emulator TC when Border Gateway Protocol is enabled.

Up to 5 BGP Router Interfaces based on Number of Interfaces.

General

As Number
Hold Down Time (s)
Connect Retry Time (s)
Keep Alive Interval (s)
TCP Socket
IP Prefix List
- Number of IP Prefixes
  - IP Prefix

Related Measurements

Measurements collected for BGP related processing are reported on the BGP Router Node tabs.

BGP- Messages

OPEN - After a TCP connection is established, the first message sent by each side is an OPEN message. Contains parameters such as the AS number.
KEEPALIVE - BGP uses "BGP Keepalive" to ensure that the TCP connection between routers remains active and that the BGP peers are still reachable.
UPDATE - UPDATE messages are used to transfer routing information between BGP peers.
NOTIFICATION - Notification messages are used to indicate errors or exceptional conditions during the BGP session. These errors can include issues such as an invalid message format, an unreachable next-hop address, or a configuration error.

AS Number	The BGP OPEN message's AS number field contains 16-bits that contains the AS number of the BGP routing instance that transmitted the OPEN message. Range : 0 to 65535 Default : 0 Tcl Parameter: Bgp1AsNumber Tcl Parameter: Bgp2AsNumber Tcl Parameter: Bgp3AsNumber Tcl Parameter: Bgp4AsNumber Tcl Parameter: Bgp5AsNumber
Hold Down Time (s)	The BGP OPEN message's Hold Down Timer field is a 16-bit field containing the proposed number of seconds between BGP KEEPALIVE and UPDATE messages. The Hold Down Timer must be either zero, or at least 3 seconds and defaults to three times the KEEPALIVE message interval. The default value is 90 seconds. Range : 0 or 3 or 0 to 65535 Default : 90 Tcl Parameter: Bgp1HoldDownTimer Tcl Parameter: Bgp2HoldDownTimer Tcl Parameter: Bgp3HoldDownTimer Tcl Parameter: Bgp4HoldDownTimer Tcl Parameter: Bgp5HoldDownTimer
Connect Retry Time (s)	The 16-bits time interval during which a BGP router waits for a TCP connection to be established. The default is 120 seconds. Range : 0 to 65535 Default : 120 Tcl Parameter: Bgp1ConnectRetryTimer Tcl Parameter: Bgp2ConnectRetryTimer Tcl Parameter: Bgp3ConnectRetryTimer Tcl Parameter: Bgp4ConnectRetryTimer Tcl Parameter: Bgp5ConnectRetryTimer
Keep Alive Time (s)	The 16-bits time interval between BGP KEEPALIVE messages, which are used to confirm that the BGP session is still active. The default is 60 seconds Range : 0 to 65535 Default : 60 Tcl Parameter: Bgp1KeepAliveInterval Tcl Parameter: Bgp2KeepAliveInterval Tcl Parameter: Bgp3KeepAliveInterval Tcl Parameter: Bgp4KeepAliveInterval Tcl Parameter: Bgp5KeepAliveInterval
TCP Socket	Selectionthe TCP Socket. Options : "Client" value 0 (default), or "Server" value 1. Tcl Parameter: Bgp1TcpSocket Tcl Parameter: Bgp2TcpSocket Tcl Parameter: Bgp3TcpSocket Tcl Parameter: Bgp4TcpSocket Tcl Parameter: Bgp5TcpSocket
IP Prefix List	Select Number of IP Prefixes. Range : 1 to 10 Default : 1 For each IP Prefix , enter a valid IPv4 or IPv6 address. Tcl Parameter: Bgp1NumPrefixes Tcl Parameter: Bgp2NumPrefixes Tcl Parameter: Bgp3NumPrefixes Tcl Parameter: Bgp4NumPrefixes Tcl Parameter: Bgp5NumPrefixes Tcl Parameter: Bgp1Prefix_1 Tcl Parameter: Bgp2Prefix_1 Tcl Parameter: Bgp3Prefix_1 Tcl Parameter: Bgp4Prefix_1 Tcl Parameter: Bgp5Prefix_1

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