Setup guide

7-6
EPC Connecting Guide
• Full Duplex must be used only for connections thru a SWITCH or POINT to POINT
connections. In particular you can use Full Duplex for 2 nodes interconnect using
crossed cable RJ45/RJ45 MI CBLG161.
When using Full Duplex, collision detection is disabled.
Switch ports should be configured with Auto–negotiation Enabled, except if you have
HACMP problems like ”network_down” or ”swap_adapter” where Auto–negotiation must be
Disabled Auto–negotiation introduces several seconds delays in case of connection or IP
address takeover which can perturbate HACMP heartbeats mechanism.
To configure Ethernet adapter speed:
23.Use
# smit chgenet
24.Select an adapter and change the parameter.
25.Adapter CONNECTOR [Auto Detection]
...
26.Apply change to DATABASE only [yes]
27.Reboot the system.
Cabling Legend
Item
M.I. Node
Type
Designation Length FRU
 CBLG179-1900 Ethernet cable RJ45/RJ45 - 100 Mhz 10m 91094001–001
 CBLG161-1900 Ethernet cross cable RJ45/RJ45 10m 91093001–001
 DCCG094-0000 EPC800 Ethernet 10/100 MCA adapter -
DCCG085-0000 EPC400 PCI Ethernet 10/100 adapter (SMC) -
DCCG137-0000 EPC1200 Ethernet 10/100 PCI adapter (IBM) - FC–S70–2968
 DCCG076-0000 EPC800 FDDI Fibre Dual Ring MCA Adapter - 76729471-001
DCCG103-0000 EPC400 PCI FDDI Fibre Dual Ring adapter -
DCCG124-0000 EPC1200 FDDI Fibre Dual Ring PCI Adapter - FC–S70–2742
 CBLG160-1800 FDDI Fibre MIC-MIC cable 6m 90022006–001
 CBLG171-1800 FDDI Fibre SC-MIC cable 6m 90022306-001
 CBLU170-1800 FDDI Fibre SC-SC cable 6m 90666206-001
 CBL1912 Adapter RS232 cable (9M/25M) 0.3m 76958073-002
 CBLG106-2000 Remote cable RS232 (25F/25M) 15m 90234001-001