!!! Overview
The Heartbeat Extension provides a new protocol for [TLS]/[DTLS] allowing the usage of keep-alive functionality without performing a [Renegotiation] and a basis for path MTU (PMTU) discovery for [DTLS].

[{$pagename}] is defined in [RFC 6250].

The [{$pagename}] is a new protocol running on top of the [Record Protocol].

Although [TLS] is generally used over [TCP], which has a keep-alive functionality builtin, [{$pagename}] is deployed over unreliable networks as [UDP].


!! More Information
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