Performance and Recommended Use of AB545A 4-Port Gigabit Ethernet Cards

Gigabit Ethernet Transmit Performance
6
Gigabit Ethernet Transmit Performance
Figure 4 shows the performance results of the Gigabit Ethernet ports when transmit
(outbound unidirectional) traffic is run through the card with a standard 1500-byte MTU.
The following highlights show the exceptional performance achieved during transmit traffic
testing:
Figure 4
AB545A Gigabit Ethernet Transmit Throughput in
rx4640
• Transmit traffic on 1 port achieved link rate on the rx4640 reaching 949 megabits per
second of throughput.
• Transmit traffic over 2 ports also achieved link rate reaching 1.898 gigabits of
application data per second of throughput.
• Transmit traffic over 3 ports also achieved link rate reaching 2.846 gigabits of
application data per second of throughput.
• With all 4 ports transmitting simultaneously, the AB545A provided an exceptional
3.636 gigabits of application data per second of throughput -- sustaining 95.7% of link
rate.
-
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
Megabits per second
rx4640 PCIX-133
949 1,898 2,846 3,636
1 port xmit 2 ports xmit 3 ports xmit 4 ports xmit