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ART(4) Device Drivers Manual ART(4)

art, musycc — Accoom Networks Artery T1/E1 network device

musycc* at pci?
art* at musycc?

The art device driver supports the Accoom Networks Artery Series Network cards. This includes the following models:

The following media types (as given to ifconfig(8)) are supported:

T1
Set T1, B8ZS ESF operation.
T1-AMI
Set T1, AMI SF operation.
E1
Set E1, HDB3, G.703 clearchannel operation.
E1-G.704
Set E1, HDB3, G.704 structured operation without CRC4 checksum.
E1-G.704-CRC4
Set E1, HDB3, G.704 structured operation with CRC4 checksum.

If no media type is set, the art driver places the card into E1-G.704-CRC4 mode.

The art driver supports the following media options for all available media types:

ppp
Use PPP line protocol.

If no media options are set, the card defaults to cHDLC (Cisco High-Level Data Link Control) with 32-bit HDLC CRC checksum.

It is possible to change the timeslot range for the following media types:

If no timeslots are configured, the art driver configures the card to use all possible channels. Use ifconfig(8) to change the timeslot range. For example:

Enable all possible channels for this card:

# ifconfig art0 timeslot all

Enable channels 1-31 for this card:

# ifconfig art0 timeslot 1-31

Enable channels 1-15, 16-31 for this card:

# ifconfig art0 timeslot 1-15,16-31

It is possible to change the clock mode of the interface with ifconfig(8). To use the internal clock as clock source for the line, use mode. For example:

# ifconfig art0 media E1-G.704 mode master

The default mode recovers the clock from the incoming line signal. This can be explicitly set by using the mode. For example:

# ifconfig art0 media E1-G.704 mode autoselect

art0: device timeout
The device has stopped responding to the network
art0: internal FIFO underflow
The internal FIFO got empty while transmitting a packet. This may indicate a PCI bus congestion.
art0: internal FIFO overflow
The internal FIFO overflowed while receiving a packet. This may indicate a PCI bus congestion.
art0: Failed to malloc memory
There are not enough mbufs available for allocation.

ifmedia(4), pci(4), sppp(4), hostname.if(5), ifconfig(8)

The art device driver first appeared in OpenBSD 3.8.

The art device driver was written by Claudio Jeker and Andre Oppermann. This manual page was written by Claudio Jeker.

June 2, 2013 OpenBSD-5.6