Juniper JUNOSE 11.2.X MULTICAST ROUTING, Руководство по настройке

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Table 18: Average Data Rate for ES2-S1 GE-8 IOA Combined with Other
IOA Types in Same Slot
120 Gbps and 320 Gbps
Configurations
(E120 and E320 routers)
Average Data Rate
per ES2 4G LM
100 Gbps
Configuration
(E320 router)
Average Data Rate
per ES2 4G LM
Average Data
Rate per
OC12/STM4
IOA
Average Data
Rate per GE-8
IOA
(> 128 Byte
Packets)
GE-8 IOA—319.5 Mbps per
port
OC12/STM4—622 Mbps
per port
GE-8 IOA—257 Mbps per
port
OC12/STM4—622 Mbps
per port
622 Mbps per
port (Ports 0
and 1) 257 Mbps per port
(Ports 0–7)
GE-8 IOA—397.25 Mbps
per port
OC12/STM4 IOA—622
Mbps for port 1
GE-8 IOA—334.75 Mbps
per port
OC12/STM4 IOA—622
Mbps for port 1
622 Mbps (Port
1) 334.75 Mbps per
port (Ports 0–7)
GE-8 IOA—450 Mbps per
port
OC12/STM4 IOA—100
Mbps per port
GE-8 IOA—387.5 Mbps
per port
OC12/STM4 IOA—100
Mbps per port
100 Mbps per
port (Ports 0
and 1) 387.5 Mbps per
port (Ports 0–7)
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.
For more information about high-density Ethernet on E Series routers, see “High-Density
Ethernet” on page 187
.
ES2 10G LM Combination
When paired with the ES2 10G LM, you can only combine the ES2-S1 GE-8 IOA in a slot
with another ES2-S1 GE-8 IOA.
177 Copyright © 2010, Juniper Networks, Inc.
Chapter 5: Configuring Ethernet Interfaces