HP Cc3310 UserÆs Guide and Technical UserÆs Guide - HP Carri - Page 22
Network Controller, Network Teaming Features
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HP cc3300 Carrier Grade Server Product Guide The SCSI bus is terminated on the server board with active terminators that cannot be disabled. The onboard device must always be at one end of the bus. The device at the other end of the cable is terminated with the active terminator on the SCSI cable installed in the system. Network Controller NOTE To ensure EMC product regulation compliance for intra-building lighting surges, the system must only be used with shielded LAN cables that are grounded at both ends. The server board uses two Intel® 82550PM Fast Ethernet Controllers and supports two 10Base-T/100Base-TX network subsystems. On the server board, NIC 1 can be used as both a network interface and server management interface. NIC Connector and Status LEDs The 82550 controller drives LEDs on the network interface connector that indicate link/activity on the LAN and 10- or 100-Mbps operation. The green LED indicates network connection when on and TX/RX activity when blinking. The yellow LED indicates 100-Mbps operation when lit. Network Teaming Features NOTE Using both on-board NICs in a team does not allow the use of NIC 1 for server management access. To support both network teaming features and server management features, a third NIC must be added and teamed to NIC 2. The network controller provides several options for increasing throughput and fault tolerance when running Linux†: • Adapter Fault Tolerance (AFT) - provides automatic redundancy for your adapter. If the primary adapter fails, the secondary takes over. AFT works with any hub or switch. • Adaptive Load Balancing (ALB) - creates a team of 2 - 6 adapters to increase transmission throughput. Also includes AFT. Works with any 10Base-TX or 100Base-TX switch. • Fast EtherChannel† (FEC) or Intel® Link Aggregation - creates a team of up to 6 adapters to increase transmission and reception throughput. Also includes AFT. Requires a FEC-enabled switch. To set up an option, read the instructions in the Linux readme files. Adapter Fault Tolerance Adapter Fault Tolerance (AFT) is a simple, effective, and fail-safe approach to increase the reliability of server connections. AFT gives you the ability to set up link recovery to the server adapter in case of a cable, port, or network interface card failure. By assigning two server adapters as a team, AFT enables you to maintain uninterrupted network performance. AFT is implemented with two server adapters: a primary adapter and a backup, or secondary, adapter. During normal operation, the backup will have transmit disabled. If the link to the primary adapter fails, the link to the backup adapter automatically takes over. 22 Chassis Description