4.6.11.2 Creating Bridge Groups in bridged.conf

The only required parameter is the list of FDDI, ATM or Ethernet interfaces you are assigning to the group.

The format of the group list is:

bridge_group bgA {

port interface_name;

};

where interface_name is in the standard GRF interface name format gx0yz that uniquely describes a logical FDDI, Ethernet, and ATM OC-3c interface (see Figure 51).

A simple bridge group entry is:

bridge_group bg0 {

port ge003;

port gf010;

};

g x 0 y 0

1st:

always "g" for GRF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd:

media type, a (ATM), f (FDDI) or e (Ethernet)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd:

chassis number, always "0" (zero)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4th:

slot number in hex

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5th:

logical interface number in hex, always "0" (zero)

 

 

 

 

 

 

 

 

 

 

 

 

Figure 51. Interface Name for FDDI, Ethernet and ATM OC-3c Interfaces

4.6.11.3 Assign IP Addresses to Bridge Groups

Assign an IP address to each bridge group in the /etc/grifconfig.conf file:

#name

address

netmask

broad_dest argument

#

 

 

 

bg0

192.168.1.1

255.255.255.0

 

bg2

192.168.2.1

255.255.255.0

 

gf022

222.222.80.2

255.255.255.0

 

ga030

222.222.02.4

255.255.255.0

 

Note: A netmask entry is required for each bridge group.

4.6.11.4Create an ATM PVC for an Encapsulated Bridge Bridging over ATM can be configured in two ways:

• LLC Encapsulation (RFC 1483, section 4)

150IBM 9077 SP Switch Router: Get Connected to the SP Switch

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Lexmark IBM 9077 manual Creating Bridge Groups in bridged.conf, Assign IP Addresses to Bridge Groups