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Platform Notes: The SunATM Driver Software

Editing the /etc/opt/SUNWconn/atm/atmconfig File

The /etc/opt/SUNWconn/atm/atmconfig file is a generic file that must appear on every SunATM system. It provides general configuration information used by the SunATM setup utilities to bring up ATM interfaces at boot time.

The file consists of one or more entries per interface. An entry contains the following fields described in Table 3-1:

Table 3-1 /etc/opt/SUNWconn/atm/atmconfig Field Descriptions

Field 

Description 

Interface

Physical interface, baN.

UNI/Framing

Version of the UNI specification used for signalling, 3.0, 3.1, or 4.0; or, for entries with only two fields, the Framing Interface, SONET or SDH.

CIP_Host

Hostname used for Classical IP. 

LANE_Instance

Instance number for a LAN Emulation interface; LAN Emulation interfaces will be called laneN where N is the LAN Emulation instance number. The LANE instance number must be between 0 and 999. Note: The LANE instance number is not necessarily the same as the physical instance number.

LANE_Host

Hostname used for LAN Emulation 

The Interface and UNI fields are required for all interfaces. The CIP_Host field is required for interfaces that run Classical IP, and the LANE_Instance and LANE_Host fields are required for interfaces that run LAN Emulation. If a field is not used, it is represented by a hyphen.

Modifications to individual interfaces will take effect when the interface is plumbed. This will happen either at boot time or when you use the atmifconfig utility to plumb interfaces. If you modify an existing (already running) interface, you must first unplumb it with the atmifconfig utility. Refer to the atmifconfig(1m) man page or "Plumbing and Unplumbing Individual ATM Interfaces" for more information.