Lexmark IBM 9077 - Manual (Page 243)

Multiple RS/6000 SPs and Multiple GRFs 225
1. The file /etc/gratm.conf needs the configuration statements for the port
used:
Traffic_Shape name=bigg_speed_high_quality \
peak=622000 sustain=622000 burst=2048 qos=high
Interface ga010 traffic_shape=bigg_speed_high_quality
PVC ga010 0/132 proto=ip traffic_shape=bigg_speed_high_quality
2. The file /etc/grifconfig.conf has the following entries:
gt030 192.168.13.4 255.255.255.0 - mtu 65520
ga010 10.20.30.2 255.255.255.0 - mtu 9180
3. The file /etc/grroute.conf has the following line:
192.168.14.0 255.255.255.0 10.20.30.1
This sets the correct route to the other SP Switch network over the
ATM OC-12c interface automatically; of course, this route could also be
set manually every time the GRF is rebooted.
4. The SP Switch Router Adapter card is connected to the SP Switch and
configured, too. Check with SDRGetObjects switch_responds on the CWS
and use Eunfence if needed.
2. On the nodes in SP21 the following route needs to be set:
route add -net 192.168.13 -netmask 255.255.255.0 -mtu 9180 \
192.168.14.4
3. On the nodes in SP2 the following route needs to be set:
route add -net 192.168.14 -netmask 255.255.255.0 -mtu 9180 \
192.168.13.4
To avoid any pitfalls, set the MTU size explicitly to the size of the ATM
adapter.
Hint: You must not use SMIT to set this route and put it into the ODM. The
SP Switch is not operational at the time this route would be set during boot
time. Therefore, this route would be put onto another, already available
network interface, for example, the Control Ethernet, and this is definitely
not what you want to happen.
Use a separate /etc/rc.routes shell script that is run only after an Estart or
an Eunfence was issued, or use some other mechanisms to have this route
set only after the css0 interfaces on the SP nodes are up and running.
Setup is done now, and every node in SP2 should now be able to ping every
node in SP21 and vice versa.
4. Check for correct routing entries on all nodes in SP21: