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204 IBM 9077 SP Switch Router: Get Connected to the SP Switch
/etc/snmpd.conf on the GRF 1600. To check, open this file and look for a
stanza similar to the following:
MANAGER 192.168.4.137
SEND ALL TRAPS
TO PORT 162
WITH COMMUNITY spenmgmt
This stanza is needed
twice
, one for each CWS. Otherwise, the SP Switch
Router Adapter card will hang in state
loading. Additionally, when you assign
an IP address to the second SP Switch Router Adapter card using SMIT,
ensure that this IP address can be resolved by name service, be it DNS or
/etc/hosts based. Otherwise the card cannot be unfenced.
• The SP Switch Router Adapter card and SP processor node switch
adapters are in the same IP subnet on both SPs.
• ARP should be enabled on the SP Switch networks to provide the most
flexibility in assigning IP addresses (strongly recommended!).
• If ARP is disabled on the SP Switch network, the IP addresses assigned to
the nodes must be determined by the switch node numbers.
Note:
The SP Switch Router Adapter card will not properly forward IP data to
nodes assigned with an IP address that is in another subnet.
Configuration:
To establish this scenario, on the GRF 1600, an SP Switch Router Adapter
card (slot 4) is attached to the SP Switch of SP2, a second card (slot 3) to the
SP Switch of SP21, as shown in Table 22 and Figure 65 on page 203. The
netmask for all interfaces is 255.255.255.0.
Table 22. Configuration of SP Switch - SP Switch Connection
To successfully run this configuration, no routes need to be set on the SP
Switch Router. Just set the corresponding routes on all nodes of SP2 and
SP21:
1. On nodes in SP21, add the following route to the switch network of SP2:
Adapter IP Address
SP Switch Router Adapter card 1 192.168.13.16
SP Switch Router Adapter card 2 192.168.14.4
SP processor nodes in SP21 192.168.14.1 - 192.168.14.15
SP processor nodes in SP2 192.168.13.1 - 192.168.13.15