Overview Of The Switches; Combination Ports And Failover - Extreme Networks ExtremeSwitching X435 Series Hardware Installation Manual

Overview of the Switches

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ExtremeSwitching X670-G2 Series Switches
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ExtremeSwitching X690 Series Switches
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ExtremeSwitching X695 Switch
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ExtremeSwitching X870 Series Switches
Overview of the Switches
The following sections describe the ExtremeSwitching switches and summarize the features available in
each series.
Model numbers for the switches are in the following format:
<Series>-<number of front-panel I/O ports><port type><internal power supply type>
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The number of ports ranges from 8 to 72.
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The port type can be t (copper), p (copper providing PoE), q (QSFP+), or x (fiber).
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For models with integral power supplies, the power supply type can be AC (no designation) or DC.
Models with pluggable power supplies can accommodate either AC or DC supplies and have no
power designation in their model numbers.
Note
See the
for feature-specific information about the Summit switches and for information regarding
switch configuration.

Combination Ports and Failover

ExtremeSwitching switches provide 2, 4, or 12 uplink ports implemented as combination ports that pair
a copper port using RJ45 connectors with an optical port using LC connectors.
The copper port operates as an autonegotiating 10/100/1000BASE-T port. The optical port allows
Gigabit Ethernet uplink connections through Extreme Networks small form factor pluggable (SFP)
interface modules. See the individual switch descriptions for the port numbers of the combination ports
on each switch model.
ExtremeSwitching switches support automatic failover from an active fiber port to a copper backup or
from an active copper port to a fiber port. If one of the uplink connections fails, the Summit uplink
connection automatically fails over to the second connection. To set up a redundant link on a
combination port, connect the active 1000BASE-T and fiber links to both the RJ45 and SFP interfaces
of that port.
Gigabit Ethernet uplink redundancy on the ExtremeSwitching switches follows these rules:
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With both the SFP and 1000BASE-T interfaces connected on a combination port, only one interface
can be activated. The other is inactive.
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If only one interface is connected, the switch activates the connected interface.
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The switch determines whether the port uses the fiber or copper connection based on the order in
which the connectors are inserted into the switch. When the switch senses that an SFP and a copper
connector are inserted, the switch enables the uplink redundancy feature. For example, if you first
20 ExtremeSwitching Hardware Installation Guide
on page 107
ExtremeXOS 30.7 User Guide
on page 96
on page 100
on page 112
and the ExtremeXOS 30.7 Command Reference Guide
ExtremeSwitching Switches