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Cisco ASR 920 Router Features
GigabitEthernet Copper Ports
Fixed copper GigabitEthernet (GE) interfaces are provided through standard RJ-45 connectors. These
ports support the following features:
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GE SFP Ports
The GE SFP ports support the following features:
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Note
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SFP+ Ports
The SFP+ ports support the following features:
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Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
1-2
Standard 10/100/1000Base-T/TX operation with forced or auto-negotiation for speed and duplex.
Automatic crossover (auto-MDIX) for straight-through and crossover connections.
Pause flow control as defined by the 802.3x standard.
Frame size of 9216 bytes.
Synchronous ENET operation that provides its recovered receive clock as an input clock source for
the SETS as well as uses the system-wide reference clock to derive its transmit clock.
100Base-FX and 1000Base-X SFP modules.
Digital optical monitoring as specified by the SFP.
Any mix of SFPs is supported unless specifically noted.
Only six Smart SFPs are supported on the router.
Pause flow control as defined by the 802.3x standard.
Frame size of 9216 bytes.
Synchronous ENET operation that provides its recovered receive clock as an input clock source for
the SETS as well as uses the system-wide reference clock to derive its transmit clock.
Copper based SFPs and Smart SFPs do not support synchronous ENET operations.
Digital optical monitoring as specified by the optical transceiver module.
Any mix of SFPs is supported unless specifically noted.
Pause flow control as defined by the 802.3x standard.
Frame size of 9216 bytes.
Smart SFPs do not support synchronous ENET operations
Chapter 1
Cisco ASR 920 Series Aggregation Services Router Overview
OL-32751-01