Table 18: Average Data Rate For Es2-S1 Ge-8 Ioa Combined With Other Ioa Types In Same Slot - Juniper JUNOSE 11.0.X PHYSICAL LAYER Configuration Manual

Each OC12/STM4 port has a maximum theoretical bandwidth of 622 Mbps. Each
OC3/STM1 port has a maximum theoretical bandwidth of 155 Mbps. Therefore, the
OC12/STM4 IOAs have a maximum theoretical bandwidth of 1.244 Gbps and the
OC3/STM1 IOA has an maximum theoretical bandwidth of 1.244 Gbps.
Table 18: Average Data Rate for ES2-S1 GE-8 IOA Combined with Other IOA Types in
Same Slot
Average Data
Rate per GE-8 Average Data
IOA Rate per
(> 128 Byte OC12/STM4
Packets) IOA
257 Mbps per 622 Mbps per
port (Ports 0–7) port (Ports 0
and 1)
334.75 Mbps per 622 Mbps (Port
port (Ports 0–7) 1)
387.5 Mbps per 100 Mbps per
port (Ports 0–7) port (Ports 0
and 1)
Managing High-Density Ethernet
With a 100 Gbps fabric configuration, the overall data rate for the ES2 4G LM with
ES2-S1 GE-8 IOAs is 3.3 Gbps. With a 120 Gbps fabric configuration or a 320 Gbps
fabric configuration, the overall data rate for the ES2 4G LM with ES2-S1 GE-8 IOAs
is 3.8 Gbps. In both configurations, the line module becomes highly oversubscribed
because of the IOA available wire rate. When paired with the ES2 4G LM, the data
rate of the ES2-S1 GE-8 IOA is bandwidth limited with larger frames, and the packet
rate is limited with smaller frames.
NOTE: The overall data rate of the ES2-S1 GE-8 IOA is 0.1 Gbps less than other IOAs
that pair with the ES2 4G LM because of fair bandwidth allocation across the eight
ports.
Currently, flow control using MAC pause frames is disabled on the ES2-S1 GE-8 IOA.
The IOA does not transmit or receive pause frames.
Chapter 5: Configuring Ethernet Interfaces
120 Gbps and 320 Gbps
100 Gbps Configuration Configurations
(E320 router) (E120 and E320 routers)
Average Data Rate Average Data Rate
per ES2 4G LM per ES2 4G LM
GE-8 IOA 257 Mbps GE-8 IOA 319.5 Mbps
per port per port
OC12/STM4 622 Mbps OC12/STM4 622 Mbps
per port per port
GE-8 IOA 334.75 Mbps GE-8 IOA 397.25 Mbps
per port per port
OC12/STM4 IOA 622 OC12/STM4 IOA 622
Mbps for port 1 Mbps for port 1
GE-8 IOA 387.5 Mbps GE-8 IOA 450 Mbps per
per port port
OC12/STM4 IOA 100 OC12/STM4 IOA 100
Mbps per port Mbps per port
Gigabit Ethernet I/O Modules and IOAs
185