Juniper JUNOSE 11.2.X MULTICAST ROUTING, Configuration Manual

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rate of the GE-8 I/O module is limited with larger frames, and the packet rate is limited
with smaller frames.
Currently, flow control using MAC pause frames is disabled on the GE-8 I/O module. The
I/O module does not transmit or receive pause frames.
For more information about high-density Ethernet, see “High-Density Ethernet” on page 187 .
OC3-2 GE APS I/O Module
ERX7xx models, ERX14xx models, and the ERX310 router all support the OC3-2 GE APS
I/O module.
The OC3-2 GE APS I/O module pairs with the OC3/STM1 GE/FE line module to provide
Gigabit Ethernet operation through one line interface and OC3 STM1 ATM operation
through two line interfaces.
The OC3-2 GE APS I/O module uses a range of SFPs to support different optical modes
and cabling distances, and accepts up to three LC-style fiber-optic or copper SFPs. You
can configure only port 2 for Gigabit Ethernet interfaces; port 0 and port 1 are reserved
for OC3/STM1 ATM interfaces.
For more information about configuring OC3/STM-1 ATM interfaces on this I/O module,
see “OC3/STM1 GE/FE Line Module” on page 77.
NOTE: The OC3-2 GE APS I/O module does not support APS in the current release.
ES2-S1 GE-4 IOA
The E120 and E320 routers support the ES2-S1 GE-4 IOA. Other E Series routers do not
support the ES2-S1 GE-4 IOA.
The ES2-S1 GE-4 IOA pairs with the ES2 4G line module (LM). For more information about
the ES2 4G LM, see “ES2 4G Line Module” on page 78
.
The ES2-S1 GE-4 IOA is offered in a halfheight size that enables you to configure it in one
of two IOA bays that are available for each slot. You can install the ES2-S1 GE-4 IOA in
only one of the IOA bays per slot.For more information about installing IOAs, see the
E120
and E320 Hardware Guide .
The ES2-S1 GE-4 IOA has four ports. The IOA can use either fiber-optic or copper SFPs.
The IOA accepts up to four pairs (Tx/Rx) of LC-style fiber-optic connectors that support
different optical modes and cabling distances. Alternatively, the IOA supports up to eight
pairs of copper SFPs.
The ES2-S1 GE-4 IOA does not support port redundancy.
ES2-S1 GE-8 IOA
The E120 and E320 routers support the ES2-S1 GE-8 IOA. Other E Series routers do not
support the ES2-S1 GE-8 IOA.
Copyright © 2010, Juniper Networks, Inc. 174
JunosE 11.2.x Physical Layer Configuration Guide