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Multiple RS/6000 SPs and One SP Switch Router 205
route add -net 192.168.13 -netmask 255.255.255.0 -mtu 65280 \
192.168.14.4
2. Check for correct routing entry:
3. On nodes in SP2, add the following route to the switch network of SP21:
route add -net 192.168.14 -netmask 255.255.255.0 -mtu 65280 \
192.168.13.16
The -mtu parameter is optional but should be set to ensure optimal packet
size on this route.
4. Check for correct routing entry:
5. On GRF 1600, check /etc/grifconfig.conf for the following entry:
gt030 192.168.14.4 255.255.255.0 - mtu 65520
gt040 192.168.13.16 255.255.255.0 - mtu 65520
6. On the CWS of SP2 and on the CWS of SP21, check if SP Switch Router
Adapter cards are configured. Check if the SP Switch Router Adapter
root@sp21n01:/ netstat -rn
Routing tables
Destination Gateway Flags Refs Use If PMTU Exp Groups
Route Tree for Protocol Family 2 (Internet):
default 192.168.4.137 UG 0 515 en0 - -
10.1.1/24 192.168.14.4 UG 0 65 css0 - -
10.10.1/24 192.168.14.4 UG 0 2 css0 4352 -
10.50.1/24 192.168.14.4 UG 0 37 css0 - -
127/8 127.0.0.1 U 8 518 lo0 - -
192.168.4/24 192.168.4.1 U 10 345052 en0 - -
192.168.13/24 192.168.14.4 UG 0 1360145 css0 65280 -
192.168.14/24 192.168.14.1 U 6 283472 css0 - -
Route Tree for Protocol Family 24 (Internet v6):
::1 ::1 UH 0 0 lo0 16896 -
root@sp2n01:/ netstat -rn
Routing tables
Destination Gateway Flags Refs Use If PMTU Exp Groups
Route Tree for Protocol Family 2 (Internet):
default 192.168.3.37 UG 1 398 en0 - -
10.1.1/24 192.168.13.4 UG 0 94 css0 - -
127/8 127.0.0.1 U 8 541 lo0 - -
192.168.3/24 192.168.3.1 U 11 1065877 en0 - -
192.168.13/24 192.168.13.1 U 2 76677 css0 - -
192.168.14/24 192.168.13.16 UG 0 431146 css0 65520 -
Route Tree for Protocol Family 24 (Internet v6):
::1 ::1 UH 0 0 lo0 16896 -