Lexmark IBM 9077 manual Other Media Cards

•It is able to transfer up to 30,000 packets per second. At 20,000 packets per second, each packet needs to be at 5 KB in order to achieve the 100 MB per second transfer rate mentioned.

•As previously mentioned, each adapter stores its own route tables in memory. Therefore, route table lookup is very fast, that is, less than 2.5 µs.

•Finally, each media adapter has a 1 Gbit per second dedicated link into the crosspoint switch. That is why the 4-port and 16-port models have an aggregate bandwidth of 4 Gbit and 16 Gbit per second, respectively, for the crosspoint switch.

2.3.8 Other Media Cards

The following are other media cards and adapters currently supported on the GRF:

EthernetThe 10/100 Mb Ethernet media adapter consists of eight 10/100BaseT Ethernet ports. All ports support only shielded twisted pair (STP) and unshielded twisted pair (UTP-5) copper cables. Other types of cables require the user to supply the appropriate transceivers.

ATM OC-3cThe ATM OC-3c media adapter allows the user to connect up to two connections into the ATM network at 155 Mb/s.

ATM OC-12cThe ATM OC-12c media adapter allows the GRF to connect to a single ATM network at speeds of up to 622 Mb per second.

FDDIThe FDDI media card provides four ports in the card. These ports allow the media card to be connected into the Fiber Distributed Data Interchange (FDDI). The four ports can be configured such that they support the following:

•Two dual-ring FDDI networks

•One dual-ring and two single-ring FDDI networks

•Four single-ring FDDI networks

HIPPIThe HIPPI media adapter is a single-port card that allows the GRF to connect to a High Performance Parallel Interface (HIPPI) network at speeds of up to 800 or 1600 Mb/s. After deducting the overhead, this medium can support connections of up to 100 MB/s.

HSSIThe High Speed Serial Interface (HSSI) is a dual-ported media adapter that can connect to two serial networks simultaneously. Each port is capable of up to 45 Mb per second.

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