Extreme Networks Summit 200-24, Hardware Installation Manual

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Summit 300 “e” Series Switches
Extreme Networks Consolidated "i" and "e" Series Hardware Installation Guide 65
Uplink Redundancy on the Summit 200-24fx Switch
Gigabit Ethernet uplink redundancy on the Summit 200-24fx switch follows these rules:
• Only one interface on each port can be active at a time. For example, on port 25, with both the
mini-GBIC and 1000BASE-T interfaces connected, only one interface can be activated. The other is
inactive.
• If only one interface is connected, the switch activates the connected interface.
• 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 a mini-GBIC and a
copper connector are inserted, the switch enables the uplink redundancy feature. For example, if you
first insert mini-GBICs into ports 25 and 26, and then connect copper ports 25 and 26, the switch
assigns the copper ports as redundant ports.
• To set up a redundant link on a port, connect the active fiber and 1000BASE-T links to both the RJ-45
and mini-GBIC interfaces of port 49. The switch defaults to the fiber link. If the fiber link fails during
operation, the switch automatically activates the redundant 1000BASE-T link.
Hardware determines when a link is lost and swaps the primary and redundant ports to maintain
stability. After a failover occurs, the switch keeps or sticks with the current port assignment until there
is another failure or a user changes the assignment using the CLI. To change the uplink failover
assignment, use the following command:
configure ports <nnn> preferred-medium {copper} | {fiber} |[force]
The default preferred-medium is fiber. If you use the
force
option, it disables automatic failover. If you
force the preferred-medium to fiber and the fiber link goes away, the copper link is not used, even if
available.
Full-Duplex Support
The Summit 200 switches provide full-duplex support for all ports. Full-duplex allows frames to be
transmitted and received simultaneously and, in effect, doubles the bandwidth available on a link. All
10/100 Mbps ports on the Summit 200 switch autonegotiate for half- or full-duplex operation.
Summit 300 “e” Series Switches
The Summit 300 “e” series switches include the following switch models:
• Summit 300-24 switch
• Summit 300-48 switch
Summit 300 Features
The Summit 300 series switch supports wireless and Power over Ethernet (PoE) networks. These
switches provide 24 or 48 autosensing 10BASE-T/100BASE-TX ports using RJ-45 connectors.
The Summit 300 series switches also provide either two or four uplink ports implemented as
combination ports that pair a copper port using RJ-45 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 small form factor pluggable (SFP) gigabit
interface connectors (GBICs), also known as mini-GBICs. Only one port in the combination pair can be