---
name: "rping"
section: "1"
platform: "linux"
package: "rdma-core"
version: "65.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux", "freebsd"]
url: "https://new.carta.tech/rping"
---

# rping(1)

RDMA CM connection and RDMA ping-pong test.

## NAME

rping - RDMA CM connection and RDMA ping-pong test.

## SYNOPSIS

```
rping -s [-v] [-V] [-d] [-P] [-a address] [-p port]
		[-C message_count] [-S message_size]
rping -c [-v] [-V] [-d] [-I address] -a address [-p port]
		[-C message_count] [-S message_size]
```

## DESCRIPTION

Establishes a reliable RDMA connection between two nodes using the librdmacm, optionally performs RDMA transfers between the nodes, then disconnects.

## OPTIONS

- \-s

  Run as the server.

- \-c

  Run as the client.

- \-a address

  On the server, specifies the network address to bind the connection to. To bind to any address with IPv6 use -a ::0 . On the client, specifies the server address to connect to.

- \-I address

  The address to bind to as the source IP address to use. This is useful if you have multiple addresses on the same network or complex routing.

- \-p

  Port number for listening server.

- \-v

  Display ping data.

- \-V

  Validate ping data.

- \-d

  Display debug information.

- \-C message\_count

  The number of messages to transfer over each connection.  (default infinite)

- \-S message\_size

  The size of each message transferred, in bytes.  (default 100)

- \-P

  Run the server in persistent mode.  This allows multiple rping clients to connect to a single server instance. The server will run until killed.

- \-q

  Control QP Creation/Modification directly from the application, instead of rdma\_cm.

## NOTES

Because this test maps RDMA resources to userspace, users must ensure that they have available system resources and permissions.  See the libibverbs README file for additional details.

## SEE ALSO

[rdma\_cm(7)](/rdma_cm/7.md), [ucmatose(1)](/ucmatose/1.md), [udaddy(1)](/udaddy/1.md), [mckey(1)](/mckey/1.md)