NETGEAR XS728T User Manual

Troubleshooting
30
ProSAFE 28-Port and 48-Port 10-Gigabit Smart Managed Switch Models XS728T and XS748T
Troubleshooting Chart
The following table lists symptoms, causes, and solutions for possible problems.
Table 4. Troubleshooting chart
Symptom Cause Solution
Power LED is off. No power is received. • Check the power cable connections at the
switch and the power source.
• Ensure that all cables are used correctly and
comply with the Ethernet specifications.
Combined
speed/activity LED is off
when the port is
connected to a device.
Port connection is not working. • Check the crimp on the connectors and
make sure that the plug is properly inserted
and locked into the port at both the switch
and the connecting device.
• Ensure that all cables are used correctly and
comply with the Ethernet specifications.
• Check for a defective port, cable, or module
by testing them in an alternate environment
where all products are functioning.
File transfer is slow or
performance is
degraded.
One possible cause:
A broadcast storm occurred and a
network loop (redundant path) was
created.
Break the loop by ensuring that only one path
exists from any networked device to any other
networked device. After you connect to the
switch web browser-based management
interface, you can configure the Spanning Tree
Protocol (STP) to prevent network loops.
Another possible cause:
Half-duplex or full-duplex setting on
the switch and the connected
device are not the same.
Make sure that the attached device is configured
for auto-negotiation.
A segment or device is
not recognized as part
of the network.
One or more devices are not
properly connected, or cabling does
not meet Ethernet guidelines.
• Verify that the cabling is correct.
• Ensure that all connectors are securely
positioned in the required ports. It is possible
that equipment was accidentally
disconnected.
Combined
speed/activity LED is
blinking continuously on
all connected ports and
the network is disabled.
A network loop (redundant path)
was created.
Break the loop by ensuring that only one path
exists from any networked device to any other
networked device. After you connect to the
switch web browser-based management
interface, you can configure the Spanning Tree
Protocol (STP) to prevent network loops.

NETGEAR XS728T Specifications

General

Model	XS728T
Ports	28
10GBase-T Ports	24
SFP+ Ports	4
Switching Capacity	560 Gbps
Form Factor	Rack-mountable
Layer	Layer 3
Management	Yes
Weight	18.5 lbs
Total Number of Network Ports	28
Uplink Port	Yes
Ethernet Technology	10 Gigabit Ethernet
Number of Total Expansion Slots	4
Number of SFP+ Slots	4
Manageable	Yes
Width	440 mm
Forwarding Rate	417 Mpps
Power Supply	Internal
MAC Address Table Size	32K
Jumbo Frame Support	Yes
Humidity	10% to 90% non-condensing
Product Type	Switch
Media Type Supported	Twisted Pair, Optical Fiber
Layer Supported	Layer 3
Power Source	AC
Height	43.2 mm
Operating Temperature	0°C to 50°C
Storage Temperature	-20°C to 70°C
Latency (10G)	1.5 μs