Troubleshooting Network Connections; Testing Network Connectivity; Pinging An Ip Address - Dell PowerConnect B - MLXe 4 Hardware Installation Manual

Troubleshooting network connections

Observe connection LEDs to determine if network connections are functioning properly.
lists the LEDs related to the network connections, the desired state of each LED, possible
abnormal states of each LED, and what to do if an LED indicates an abnormal state.
TABLE 18
LED
Interface module
Link
Active
If a problem persists after taking these actions, contact Dell Technical Support.

Testing network connectivity

After you cable the fiber-optic transceivers, you can test connectivity to other network devices by
pinging those devices. You also can perform traceroutes.

Pinging an IP address

To verify that the router can reach another device through the network, enter a command such as
the following at any level of the CLI.
NetIron> ping 192.33.4.7
PowerConnect B-MLXe Hardware Installation Guide
53-1002111-01
Network connection-related LED states
Desired Meaning Abnormal
state state
On A link is Off
established
with the remote
port.
On or The port is Off for an
blinking transmitting extended
and receiving period.
user packets.
Testing network connectivity
Meaning or action
A link is not established with the remote port. Try the
following:
•
Verify that the connection to the other network device
has been properly made, and that the other network
device is powered on and operating correctly.
•
Verify that the transmit port on a router is connected to
the receive port on the other network device, and that
the receive port on the router is connected to the
transmit port on the other network device. If you are not
certain, remove the two cable connectors and reinsert
them in the port connector, reversing their order.
•
Dust may have accumulated in the cable connector or
port connector. For information about cleaning the
connectors, refer to "Cleaning fiber-optic ports and
connectors" on page 96.
•
If these actions do not resolve the problem, try using a
different port or a different cable.
The port is not transmitting or receiving user packets. Try the
following:
•
Check the Link LED to make sure the link is still
established with the remote port. If not, take the actions
described in the Meaning or Action column for the Link
LED.
•
Verify that the port has not been disabled through a
configuration change. You can use the CLI. If you have
configured an IP address on the device, you also can use
the Web management interface or IronView Network
Manager.
4
Table 18
97