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Table 17. Network Connection-Related LED States
LED
Desired State
Link
On (Green)
Active
On or blinking
(Yellow)
If a problem persists after taking these actions, contact IBM Support.
Tracing a route
To determine the path through which a device can reach another device, enter a
command such as the following at any level of the CLI on the device:
FastIron> traceroute 192.33.4.7
Syntax: traceroute traceroute <host-ip-addr> [maxttl <value>] [minttl
<value>] [numeric] [timeout <value>] [source-ip <ip addr>]
Meaning
A link is established with
the remote port.
The port is transmitting
and receiving user
packets.
Chapter 4. Connecting Network Devices and Checking Connectivity
Abnormal State Meaning/Action
Off
A link is not established with the
remote port. You can do the following:
v Verify that the connection to the
other network device has been
properly made. Also, make certain
that the other network device is
powered on and operating correctly.
v Verify that the transmit port on the
device is connected to the receive
port on the other network device,
and that the receive port on the
device is connected to the transmit
port on the other network device. If
you are not certain, remove the two
cable connectors from the port
connector and reinsert them in the
port connector, reversing their order.
v Dust may have accumulated in the
cable connector or port connector.
To read additional information about
cleaning the connectors, see
"Cleaning fiber optic modules" on
page 53.
v If the other actions don't resolve the
problem, try using a different port or
a different cable.
Off for an
The port is not transmitting or receiving
extended period.
user packets. You can do the following:
v 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/Action
column for the Link LED.
v 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.
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