IBM 9077 Manual Do Utilizador

Multiple RS/6000 SPs and Multiple GRFs 

Router, so there was no technical reason for it. The 

:wq!

 in the screen shot 

is there to remind you how to end editing of the file, and we give an 

n

 (no) 

as answer to the last question, as the ATM ports are already in use and 
therefore cannot be modified. So we need to 

reboot

 the GRF, and this 

takes care of the relevant settings anyway. See Section 4.6.9.3, “Editing 
Utility – Bredit” on page 146 for more information.

2. The following changes need to be applied to /etc/grifconfig.conf:

#ga010  10.1.1.1        255.255.255.0   -       mtu 9180

#ga0180 10.1.2.1        255.255.255.0   -       mtu 9180

bg1     10.1.1.1        255.255.255.0   -       mtu 9180

: The data for the 

ga010

 and 

ga0180

 interface needs to be 

commented out and the line for 

bg1

 

bridge_group

 needs to be put in. The 

netmask entry is mandatory for 

bridge_group

 entries.

3. Finally, bridging requires these entries in the /etc/gratm.conf file:

Traffic_Shape name=high_speed_high_quality \

peak=155000 sustain=155000 burst=2048 qos=high

This entry remains the same as in the basic configuration:

Interface ga010 traffic_shape=high_speed_high_quality \

bridge_method=llc_encapsulated

Interface ga0180 traffic_shape=high_speed_high_quality \

bridge_method=llc_encapsulated

These two lines were changed from the basic configuration!

PVC ga010 0/132 proto=llc,bridging

PVC ga0180 0/134 proto=llc,bridging

Because the GRF supports inverse ATM ARP (InATMARP), there is no need 
to put any entries in /etc/grarp.conf.

The file /etc/grroute.conf also remains unchanged:

192.168.13.0          255.255.255.0   10.1.1.2

If there is no such entry in /etc/grroute.conf, the following command must be 
run on GRF 1600:

route add -net 192.168.13.0 -netmask 255.255.255.0 -mtu 9180 10.1.1.2