Znyx Networks bh5700 - Manual (Page 165)

Configuration Troubleshooting
Problem Solution
No Connection Physical Link problem. Check to see if the port LED is lit. If
the LED port is not lit, then you may have a bad cable
connection.
OR
Configuration Error. Connect through the console port (See
Chapter 10). Use the
ifconfig
command to see all of the
configured interfaces on the Ethernet Switch Blade and their
IP addresses. Check to make sure that the IP address of the
switch and the subnet mask are properly set. Also, the section
on No Connection for more information.
Decreased throughput You should make sure that your network topology contains no
data path loops. Between any two end nodes, there should be
only one active cabling path at any time. Data path loops will
cause broadcast storms that will severely impact your network
performance. See the section on Diminished Network
Throughput.
High Error Rates, Decreased
Throughput If the interfaces on the Ethernet Switch Blade and the node
board are not set to auto by default, the link may not negotiate
correctly. See the section on Connecting to Devices with Fixed
Port Speeds.
Ext FLT LED on The EXT FLT LED indicates that communications could not
be established with one or more remote partner devices on an
active port or ports. Ports which were configured to be up (via
i
fconfig
), but do not have remote partner devices attached,
can cause the EXT FLT LED to be lit, even if there are no
hardware problems with the switch. See the Network
Configuration Problems chapter for more information
Ekey Disabled By default, if there is no device plugged into a node slot in the
ATCA chassis, the Shelf Manager will
ekey
disable the port.
If a node board is inserted and the ports on the Ethernet Switch
Blade are still
ekey
disabled by the Shelf Manager, check to
see if the node board has been properly activated by the Shelf
Manager.
Determining ekey status for a specific slot
You can determine the current state of any link by using the
zlc
command. The
zlc
command
will output the current status of any/all Ethernet ports and their
ekey
status that was set by the
Shelf Manager.
Ethernet Switch Blade User's Guide release 3.2.2j page 165