XPP_SYNC(8)
NAME
xpp_sync - Handle sync selection of Xorcom Astribanks.
SYNOPSIS
xpp_sync <auto|dahdi|nn> xpp_sync [-v]
DESCRIPTION
On a normal operation one Astribank device provides timing for all the
other Astribank devices.
When run without parameters, xpp_sync will display a list of Astribanks
(xbuses) that are connected and registered as Dahdi spans. The current
xpp sync master will be marked.
- If you this an Astribank is connected and yet it does not appear on the
output of xpp_sync, it may be unregistered. Try running
dahdi_registration . - Parameters
- auto
Automatically selects the best Astribank for syncing.
- dahdi
Gets synchronization from the Dahdi sync master.
- nn Sets XBUS-nn as sync source.
- -v Also print the numeric xpp sync rank.
- (Parameter name is case-insensitive)
- Example output:
- Setting SYNC
Current sync: 01
Best Available Syncers:+ XBUS-01 (usb-0000:00:10.4-3) [usb:12345678] [ PRI_TE PRI_NT PRI_TE PRI_NT ]XBUS-00 (usb-0000:00:10.4-2) [usb:QA-01] [ FXS FXO ]==================================================
WARNING: FXO which is not the syncer cause bad PCMAffected Astribanks are:--------------------------------------------------XBUS-00================================================== - In this example we see that the recommended xpp sync master is XBUS-02 - it is the first on the list. It is also the actual syncer, as we can see from the '+' beside it.
- xpp_sync is normally called from the dahdi init.d script. The
parameter it is called with defaults to auto, but it is possible to override that parameter (e.g: set it to dahdi) through the value of XPP_SYNC in /etc/dahdi/init.conf .
FILES
- /proc/xpp/sync
- (Deprecated: no longer supported) xpp_sync is essentially a nicer
interface to /proc/xpp/sync . That file shows the current xpp sync master (and in what format you need to write to it to set the
master).
SEE ALSO
- dahdi_registration(1), dahdi_cfg(1), README.Astribank