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JunosE 11.2.x Physical Layer Configuration Guide
10-Gigabit Ethernet IOAs
ES2-S1 10GE IOA
182
Bandwidth and Line Rate Considerations
Table 24 on page 182 lists the average data rate on the ES2-S3 GE-20 IOA when installed
in E120 and E320 routers with one ES2 10G ADV LM installed.
Table 24: Average Data Rate for One ES2-S3 GE-20 IOA Installed with
an ES2 10G ADV LM
100 Gbps, 120 Gbps, or 320 Gbps
Configuration
Port
Average Data Rate per GE-20 IOA
Combination
(> 128 Byte Packets)
Any 10 ports
1 Gbps per port
All 20 ports
500 Mbps per port
Managing High-Density Ethernet
When installed in an E120 or E320 router with any SRP module combination, the overall
data rate for the ES2 10G ADV LM with one ES2-S3 GE-20 IOA is limited to 10 Gbps. The
line module can become oversubscribed because of the IOA available wire rate (20 Gbps).
Currently, flow control using MAC pause frames is disabled on the ES2-S3 GE-20 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.
10-Gigabit Ethernet interfaces are supported on the ES2-S1 10GE IOA and the ES2-S1
10GE PR IOA. For more information about 10-Gigabit Ethernet, see IEEE Standard 802.3ae.
The E120 and E320 routers support the ES2-S1 10GE IOA. Other E Series routers do not
support the ES2-S1 10GE IOA.
The ES2-S1 10GE IOA pairs with the ES2 4G LM to provide a 10-Gigabit Ethernet interface.
For more information about the ES2 4G LM, see "ES2 4G Line Module" on page 78.
The ES2-S1 10GE IOA is offered in a full-height size that uses both adapter bays. The IOA
is identified by the software as adapter bay 0. For more information about installing IOAs,
see the E120 and E320 Hardware Guide.
The ES2-S1 10GE IOA has one port, uses a range of 10-gigabit small form-factor pluggable
transceivers (XFPs) to support different optical modes and cabling distances, and accepts
one LC-style fiber-optic connector.
Copyright © 2010, Juniper Networks, Inc.
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