protocol/network/messages/ping.md

<div class="cwikmeta" style="visibility:hidden;">
{
"title":"PING",
"related":["/protocol/network/messages/pong.md"]
} </div>

# Request: Ping ("ping")

Connection keep-alive, "aliveness" and latency discovery.

If a node receives a `ping` message, it replies as quickly as possible with a [`pong`](/protocol/network/messages/pong.md) message with the provided *nonce*.


## Message Format

| Field | Length | Format | Description |
|--|--|--|--|
|  nonce  | 8 bytes | unsigned 64 bit integer<sup>[(LE)](/protocol/misc/endian/little.md)</sup> | An arbitrary value provided to connect the ping message with the `pong` reply. |
move p2p messages 2020-02-06 12:37:37 -05:00			`<div class="cwikmeta" style="visibility:hidden;">`
			`{`
			`"title":"PING",`
wiki commit 2020-02-06 18:24:36 -05:00			`"related":["/protocol/network/messages/pong.md"]`
move p2p messages 2020-02-06 12:37:37 -05:00			`} </div>`

wiki commit 2020-02-06 18:24:36 -05:00			`# Request: Ping ("ping")`

move p2p messages 2020-02-06 12:37:37 -05:00			`Connection keep-alive, "aliveness" and latency discovery.`

Added mempool, more consistent styling of network message links. 2021-06-01 17:30:23 -04:00			If a node receives a `ping` message, it replies as quickly as possible with a [`pong`](/protocol/network/messages/pong.md) message with the provided nonce.
move p2p messages 2020-02-06 12:37:37 -05:00
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			`## Message Format`

Fix markdown issues 2021-02-24 17:53:28 +01:00			`\| Field \| Length \| Format \| Description \|`
wiki commit 2020-02-06 18:24:36 -05:00			`\|--\|--\|--\|--\|`
Added mempool, more consistent styling of network message links. 2021-06-01 17:30:23 -04:00			\| nonce \| 8 bytes \| unsigned 64 bit integer<sup>[(LE)](/protocol/misc/endian/little.md)</sup> \| An arbitrary value provided to connect the ping message with the `pong` reply. \|