Sun Microsystems 3U User Manual
58
SunATM 3U CompactPCI Adapter Installation and User’s Guide • February 2001
Supporting Multiple Emulated LANs
on a Single Interface
on a Single Interface
The SunATM software allows a single ATM interface to join up to 16 emulated local
area networks (ELANs), provided this is allowed by the switch and LAN Emulation
(LANE) services. Each ELAN joined will be represented by a unique lane instance
(for example,
area networks (ELANs), provided this is allowed by the switch and LAN Emulation
(LANE) services. Each ELAN joined will be represented by a unique lane instance
(for example,
lane0
or
lane1
).
Note –
A requirement for supporting this feature is that the adapter card be
assigned multiple MAC addresses, which is supported by the SunATM adapter. You
can find the number of MAC addresses assigned to your SunATM adapter by using
the
can find the number of MAC addresses assigned to your SunATM adapter by using
the
atmgetmac(1M)
command with the
count
option.
Configure multiple ELANs by placing multiple entries in the
/etc/opt/SUNWconn/atm/atmconfig
and
/etc/opt/SUNWconn/atm/
laneconfig
files. Each
lane
instance will have a unique hostname and IP address,
ATM address, and MAC address associated with it. In addition, assign an ELAN
name to the instance if any ELAN other than the default is to be joined. Provide this
information, with the exception of the MAC address, which is retrieved from the
board itself, in the
name to the instance if any ELAN other than the default is to be joined. Provide this
information, with the exception of the MAC address, which is retrieved from the
board itself, in the
/etc/opt/SUNWconn/atm/atmconfig
and
/etc/opt/
SUNWconn/atm/laneconfig
configuration files.
Note –
Only one signalling protocol (for example, UNI 3.0 or 3.1) and one Classical
IP instance are supported per physical interface. Specify the UNI version in the first
/etc/opt/SUNWconn/atm/atmconfig
entry for a given interface; the Classical IP
instance may be specified in any entry.
The following example shows the
/etc/opt/SUNWconn/atm/atmconfig
and
/etc/opt/SUNWconn/atm/laneconfig
files and the
ifconfig -a
output for a
system with one SunATM interface,
ba0
. The interface uses UNI 3.0 for signalling,
and does not run Classical IP. It joins four emulated LANs: the default,
elan1
,
elan2
, and
elan3
.
The example
/etc/opt/SUNWconn/atm/atmconfig
file:
Interface UNI CIP Hostname LANE Instance LANE Hostname
ba0 3.0 - 0 atm0
ba0 - - 1 atm1
ba0 - - 2 atm2
ba0 - - 3 atm3