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.

Card face plate numbers

A0

B0

A1

B1

A0

B0

A1

0

1

FDDI 2

3

0

1

FDDI 2

SAS/DAS

Logical interface

IP addresses

options in

numbers in

used in

Card profile

grifconfig.conf

grifconfig.conf

 

 

 

 

 

xxx.xxx.xxx.xxx

 

 

 

 

 

 

 

4 single attach

 

 

xxx.xxx.xxx.xxx

 

 

 

 

xxx.xxx.xxx.xxx

 

 

 

 

 

xxx.xxx.xxx.xxx

 

 

 

 

 

 

 

 

 

 

xxx.xxx.xxx.xxx

 

 

2 dual attach

 

 

xxx.xxx.xxx.xxx

 

 

 

 

 

 

 

 

 

B1

A0

B0

A1

B1

A0

B0

A1

B1

FDDI

FDDI

3

0

1

2

3

0

1

2

3

1 dual

xxx.xxx.xxx.xxx

xxx.xxx.xxx.xxx

2 single attach

xxx.xxx.xxx.xxx

 

 

xxx.xxx.xxx.xxx

2 single

xxx.xxx.xxx.xxx

1 dual attach

xxx.xxx.xxx.xxx

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.

Configuration of IP-Forwarding Media Cards

127

Page 145
Image 145
Lexmark IBM 9077 manual Physical Interface Numbers, 127