---
name: "bputa"
section: "1"
platform: "linux"
package: "ion"
version: "3.2.1+dfsg-1.1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/bputa"
---

# bputa(1)

BP-based CFDP UT-layer adapter

## NAME

bputa - BP-based CFDP UT-layer adapter

## SYNOPSIS

**bputa**

## DESCRIPTION

**bputa** is a background "daemon" task that sends and receives CFDP PDUs encapsulated in DTN bundles.

The task is spawned automatically by **cfdpadmin** in response to the 's' command that starts operation of the CFDP protocol; the text of the command that is used to spawn the task must be provided as a parameter to the 's' command.  The link service input task is terminated by **cfdpadmin** in response to an 'x' (STOP) command.

## EXIT STATUS

- "0"

  **bputa** terminated normally, for reasons noted in the **ion.log** file.  If this termination was not commanded, investigate and solve the problem identified in the log file and use **cfdpadmin** to restart **bputa**.

- "1"

  **bputa** terminated abnormally, for reasons noted in the **ion.log** file. Investigate and solve the problem identified in the log file, then use **cfdpadmin** to restart **bputa**.

## FILES

No configuration files are needed.

## ENVIRONMENT

No environment variables apply.

## DIAGNOSTICS

The following diagnostics may be issued to the **ion.log** log file:

- CFDP can't attach to BP.

  **bpadmin** has not yet initialized BP protocol operations.

- CFDP can't open own endpoint.

  Most likely another bputa task is already running.  Use **cfdpadmin** to stop CFDP and restart.

- CFDP can't get Bundle Protocol SAP.

  Most likely a BP configuration problem.  Use **bpadmin** to stop BP and restart.

- bputa can't attach to CFDP.

  **cfdpadmin** has not yet initialized CFDP protocol operations.

- bputa can't dequeue outbound CFDP PDU; terminating.

  Possible system error.  Check ion.log for additional diagnostic messages.

- bputa can't send PDU in bundle; terminating.

  Possible system error.  Check ion.log for additional diagnostic messages.

- bputa can't track PDU; terminating.

  Possible system error.  Check ion.log for additional diagnostic messages.

- bputa bundle reception failed.

  Possible system error; reception thread terminates.  Check ion.log for additional diagnostic messages.

- bputa can't receive bundle ADU.

  Possible system error; reception thread terminates.  Check ion.log for additional diagnostic messages.

- bputa can't handle bundle delivery.

  Possible system error; reception thread terminates.  Check ion.log for additional diagnostic messages.

- bputa can't handle inbound PDU.

  Possible system error; reception thread terminates.  Check ion.log for additional diagnostic messages.

## BUGS

Report bugs to \<ion-bugs@korgano.eecs.ohiou.edu\>

## SEE ALSO

[*cfdpadmin*(1)](/cfdpadmin/1.md), [*bpadmin*(1)](/bpadmin/1.md)