Configuration of IP-Forwarding Media Cards 127

• By a logical interface number assigned after the SAS/DAS settings are

numbered (used in the /etc/grifconfig.conf file)

• By a unique IP address assigned to each logical interface

Figure 46 shows files where various numbers are used to configure the

interfaces on an FDDI media card.

Figure 46. Assigning Numbers to FDDI Interfaces

4.4.3 Physical Interface Numbers

The physical interface number identifies the specific FDDI fiber optic

attachment component according to its location on the media card; it may be

from 0–3.

Starting at the top of the media card, each physical interface is numbered

consecutively, beginning with 0, as shown in Figure 47 on page 128.

FDDI
0
3
2
1
FDDI
0
3
2
1
FDDI
0
3
2
1
FDDI
0
3
2
1
A0
B1
A1
B0
A0
B1
A1
B0
A0
B1
A1
B0
A0
B1
A1
B0
4 single attach
2 dual attach
1 dual
2 single attach
2 single
1 dual attach
Card
face plate
numbers
SAS/DAS
options in
Card profile
Logical interface
numbers in
grifconfig.conf
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
IP addresses
used in
grifconfig.conf