Juniper JUNOSE 10.0.X PHYSICAL LAYER, Configuration Manual

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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 192
.
ES2-S2 10GE PR IOA
The E120 router and the E320 router support the ES2-S2 10GE PR IOA. Other E-series
routers do not support the ES2-S2 10GE PR IOA.
The ES2-S2 10GE PR 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-S2 10GE PR IOA has one port, uses a range of XFPs to support different
optical modes and cabling distances, and accepts 10 LC-style fiber-optic connectors.
The single port on the ES2-S2 10GE PR IOA has a redundant port. If the active port
fails, the redundant port automatically becomes active. You can configure only the
active port for a 10-Gigabit Ethernet interface; you cannot configure the redundant
port. Cabling both ports provides a redundant path to the 10-Gigabit Ethernet
interface.
The ES2-S2 10GE PR IOA pairs with the ES2 10G Uplink LM to provide uplink services
or the ES2 10G LM to provide access services.
10-Gigabit Ethernet IOAs
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Chapter 5: Configuring Ethernet Interfaces