Gigabit Ethernet Ports
The Cisco Catalyst IE9300 Rugged Series Switch supports four uplink (1G) ports and 24 downlink ports.
Two of the downlink ports can function as dual-media downlink ports, providing an SFP interface and a
copper interface.
•
Gigabit Ethernet SFP ports
: On the IE9320 switches, SFP downlinks and uplinks support 1-Gb and
100-Mb SFPs. However, uplinks on IE9310 switches do not support 100-Mb SFPs. Each port has an
LED above or below it.
•
Gigabit Ethernet dual-media downlink ports
: All dual-media downlink ports support 1-Gb and 100-Mb
SFPs on the SFP interface. The copper half supports 1000BASE-T, 100BASE-TX, and 10BASE-T with
autonegotiation, auto-MDIX, and cable diagnostics on an RJ-45 connector. Each dual-media downlink
port has two LEDs, one by the SFP connector, and one by the RJ-45 connector.
• Only one interface on dual-media downlink ports can be active at a
time.
•
Dual-media downlink ports
are sometimes referred to as
combination
ports
or
combo ports
.
Note
Each port LED displays information about its individual port. However, you can use the display mode button
to cycle through the different LED modes, which determines the kind of information that is shown by the port
LEDs. When you choose a mode, the mode LED lights up solid green, and the port LEDs light up as described
in the following table. After 5 seconds, the mode LED turns off, its default state.
Table 5: Ethernet Port LEDs
Status
LED Color
Port Mode
No link, or port that is administratively shut down.
Off
Not illuminated
(Default)
Link present but no activity.
Green
Activity. Port is sending or receiving data.
Blinking green
Link fault. Error frames can affect connectivity, and
errors such as excessive collisions, CRC errors, and
alignment and jabber errors are monitored for a link
fault.
Alternating green and
amber
Port is blocked by Spanning Tree Protocol (STP) and
is not forwarding data.
After a port is reconfigured, the port LED can remain
amber for up to 30 seconds while STP checks the
switch for possible loops.
Amber
System is sending Spanning Tree bridge protocol data
units (BPDUs) on an STP blocked port.
Blinking amber
Cisco Catalyst IE9300 Rugged Series Switch Hardware Installation Guide
7
Cisco IE9300 Rugged Series Overview
Gigabit Ethernet Ports
Summary of Contents for Catalyst IE-9310-26S2C-A
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