Troubleshooting network connections
•
For the indicated port, verify that both ends of the cabling (at the device and the connected device) are snug.
•
Verify that the device and the connected device are both powered on and operating correctly.
•
Verify that you have used the correct cable type for the connection:
–
For twisted-pair connections to an end node, use straight-through cabling.
–
For fiber-optic connections, verify that the transmit port on the device is connected to the receive port on the connected
device, and that the receive port on the device is connected to the transmit port on the connected device.
•
Use the CLI to verify that the port has not been disabled through a configuration change. If you have configured an IP address
on the device, you also can use Brocade Network Advisor.
•
If the other procedures do not resolve the problem, try using a different port or a different cable.
•
If a 1-Gbps optic transceiver is inserted into a ICX 6450 device, you must configure the port using the
speed-duplex 1000-
full-master
command at the interface level.
Digital optical monitoring
NOTE
10 Gbps optical transceivers are not supported on ICX 6430 devices.
You can configure your device to monitor optical transceivers in the system, either globally or by specified port. When this feature is
enabled, the system monitors the temperature and signal power levels for the optical transceivers in the specified ports. Console
messages and syslog messages are sent when optical operating conditions fall below or rise above the SFP and SFP+ manufacturer’s
recommended thresholds. For more information about digital optical monitoring, refer to the
Brocade FastIron Security Configuration
Guide
.
Testing connectivity
Test for connectivity by observing the LEDs related to network connection.
Pinging an IP address
To verify that a device can reach another device through the network, enter a command similar to the following at any level of the CLI.
device> ping 10.33.4.7
Syntax:
ping
ip-addr
[
source
ip-addr
] [
count
num
] [
timeout
msec
] [
ttl
num
] [
verify
] [
no-fragment
] [
quiet
] [
data
1-to-4 byte
hex#, e.g., abcdef00
] [
numeric
] [
size
byte
] [
brief
[
max-print-per-sec
num, 0-2047
] ]
NOTE
If you address the ping to the IP broadcast address, the device lists the first four
responses.
Troubleshooting network connections
Brocade ICX 6430 and ICX 6450 Stackable Switches Hardware Installation Guide
76
Part Number: 53-1003617-03