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Table 39: Troubleshooting Faults in the Media Gateway
Problem
Possible Cause(s)
Network problems
Ports 1 or 2 on the
ES status LEDs are
off
SC settings
problem
The SC can not
IP/subnet
be connected
mask/default router
using "telnet"
of SC is wrong.
No communication
MIB browser
between the MIB
setting problem
browser and the
Media Gateway
Media Gateway IP
settings
On an ES board,
The uplink of the
no LED is turned
board is not
on.
connected.
A board does not
The configured IP
change to the
addresses for the
ENABLE state
board are already
after it is set to
taken by another
UNLOCK.
device in the
network.
Echo on the PSTN
Clock
terminations
Synchronization
16. Diagnostics & Troubleshooting
What to do
Check that one of the two Uplink
connections is alive using status
LEDs on the ES boards. Otherwise,
all the board links will be disabled.
Ensure that the appropriate SC in
slot 1 or 2 appropriately is operating
correctly. Restart each of the ES
boards to cause the SC switchover
between the two Ethernet ports.
Connect the Console to the SC
board. Run the configuration utility
to set the IP settings.
Connect to the SC board using RS-
232 and check its parameters. If
they are wrong - use "sc_isntall.pl"
to fix them.
Ping the Media Gateway. If it
responds, check the community
stream settings on the MIB browser.
Verify that you're working with
SNMP V1 or V2.
Connect the Console to the SC
board. Run the configuration utility
to set the IP settings.
Connect the uplink.
Reset the board.
Ping to the configured IP
addresses.
If the ping returns a response, then
another device is already using the
IP address.
LOCK the board and configure new
IP addresses for it. Then UNLOCK
the board.
Check and validate the clock
synchronization of the PSTN
network and the Avaya G860 Media
Gateway. Refer to Site Preparation,
PSTN Network Settings and
'Configuring & Operating the Media
Gateway' on page
101
for detail
Avaya G860 Media Gateway
operation description and
capabilities.
Refer to
Issue 1 October 2007 173
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Table of Contents
Troubleshooting
