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Sun Microsystems 3U User Manual

Page 67

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Chapter 5

Editing SunATM Configuration Files

45

Every node, or client, has both an IP address and either an ATM address or a virtual
circuit identifier (VCI). See “ATM Address Resolution” on page 67, for ATM
addressing scheme information.

In the IP-ATM address table shown in the

/etc/opt/SUNWconn/atm/aarconfig

file:

Interface

is the last part of the device name (

ba0

, for example).

Hostname

is either an IP address in “dot” notation or the name of a host that

should be locally available unless a non-ATM network connection also exists.

ATM Address

consists of 20 octets with each octet represented by a one- or two-

digit hexadecimal number and separated by colons.

The

VCI

field is a positive decimal integer.

An unused field is denoted by a hyphen.

TABLE 5-2

lists the flags, including configuration flags, and the options they provide.

TABLE 5-2

/etc/opt/SUNWconn/atm/aarconfig

File Flag Descriptions

Flag

Description

l

Represents the ATM address of the local interface on ARP clients or systems not
using an ARP server for ATM address resolution, and can be used to assign an
ATM address to the host. Hostname should not appear; ATM Address should be
provided if, and only if, SVCs are used. If you provide an s entry to use an ARP
server (see below), you must also provide an ATM Address (a server is
meaningful only in an SVC environment). See

TABLE 5-3

.

L

Represents the ATM address of the local interface on an ARP server. Hostname
should not appear; ATM Address is required. See

TABLE 5-3

.

s

Specifies a connection to the ATM ARP server. Either ATM Address or VCI (in
the case of a PVC connection) should appear, but not both. Hostname should not
appear. The s entry is required on all clients that need to communicate with the
server for ATM address resolution. See

TABLE 5-3

.