Bandwidth and Line Rate Considerations

Each ES2-S1 GE-8 IOA is connected to the ES2 10G LM through a 5 Gbps bus. Therefore, the aggregate bandwidth of any IOA is limited to 5 Gbps.

Table 20 lists the average data rate on the ES2-S1 GE-8 IOA when installed in E120 and E320 routers with one ES2 10G LM installed.

Table 20: Average Data Rate for One ES2-S1 GE-8 IOA Installed with an ES2 10G LM

Port Combination	100 Gbps, 120 Gbps, or 320 Gbps Configuration Average Data Rate per GE-8 IOA (> 128 Byte Packets)

Any five ports	1 Gbps per port
All eight ports	625 Mbps per port

Table 21 lists the average data rate of two ES2-S1 GE-8 IOAs when installed in E120 and E320 routers with one ES2 10G LM installed.

Table 21: Average Data Rate for Two ES2-S1 GE-8 IOAs Installed with an ES2 10G LM

Port Combination	100 Gbps, 120 Gbps, or 320 Gbps Configuration Average Data Rate per GE-8 IOA (> 128 Byte Packets)

All sixteen ports	625 Mbps per port
Any five ports on each IOA	1 Gbps per port