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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 196.
10-Gigabit Ethernet IOAs
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.
ES2-S1 10GE IOA
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 80.
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.
Managing High-Density Ethernet
With a 100 Gbps fabric configuration, the overall data rate for the ES2 4G LM with
the ES2-S1 10GE IOA is 3.4 Gbps for large packets. With a 120 Gbps or a 320 Gbps
fabric configuration, the overall data rate for the ES2 4G LM with the ES2-S1 10GE
IOA is 3.9 Gbps for large packets. In all configurations, the line module becomes
highly oversubscribed because of the available wire rate on the IOA. When paired
with the ES2 4G LM, the data rate of the ES2-S1 10GE IOA is bandwidth limited with
larger frames, and the packet rate is limited with smaller frames.
Currently, flow control using MAC pause frames is disabled on the ES2-S1 10GE 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 196 .
ES2-S2 10GE PR IOA
The E120 and E320 routers support the ES2-S2 10GE PR IOA. Other E Series routers
do not support the ES2-S2 10GE PR IOA.
Chapter 5: Configuring Ethernet Interfaces
10-Gigabit Ethernet IOAs
191
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