Border Gateway Protocol 4 Send Hold Timer
RFC 9687, “Border Gateway Protocol 4 Send Hold Timer”, is a Proposed Standard document published in November 2024 by J. Snijders, B. Cartwright-Cox, Y. Qu. It updates RFC 4271. The canonical text is published by the RFC Editor.
Abstract
This document defines the SendHoldTimer, along with the SendHoldTimer_Expires event, for the Border Gateway Protocol (BGP) Finite State Machine (FSM). Implementation of the SendHoldTimer helps overcome situations where a BGP connection is not terminated after the local system detects that the remote system is not processing BGP messages. This document specifies that the local system should close the BGP connection and not solely rely on the remote system for connection closure when the SendHoldTimer expires. This document updates RFC 4271.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 9687 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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