Version 6.6 837 October 2014
Installation & Operation Manual 47. Troubleshooting Strategy
Problem Possible Cause(s) Actions to Take See:
VLAN configuration
mismatch – for
ES/6600.
Verify that the VLAN configuration
of the OAM subnet on the Media
Gateway matches the VLAN
configuration of the external IP
network. Re-configure VLAN
configuration if needed.
'Working with
VLANs' on page
188
Wrong basic IP
configuration of SC
boards (e.g. subnet
mask or default
router)
Connect to the CLI interface of the
SC board via RS-232 serial
console.
Run install command and re-
configure the SC board’s basic
network configuration.
'Configuring the
Basic IP Network
Parameters of
SC Boards' on
page 117
ES board
malfunction
Reset both ES boards by extracting
them from the chassis and re-
inserting them. It may take up to 10
minutes for the ES boards to
complete the "reset procedure".
'Working with the
ES boards' on
page 261
No communication
with the Media
Gateway
(ping to the private
SC's IP works;
however, ping to
Telnet does not)
Media Gateway is in
Secure Mode
Use SSH to connect to the Media
Gateway's CLI interface on the SC
boards in Secure Configuration
Mode.
'Connecting to
the CLI via the IP
Network'
111
SC board is at the
OpenBoot level
(ok prompt)
Connect to the SC board’s CLI
interface via RS-232 serial console.
Press Enter. If you see the ok
prompt – type go to continue
normal board's operation.
If this does not help – reset the
board by pressing the RESET
button. Wait up to 3 minutes until
the SC board completes the reboot.
If this does not help – extract the
board from the chassis and re-insert
it.
'Working with
System
Controller
Boards' on page
223