Ethernet Service Troubleshooting Troubleshooting
4. If Management connection is lost, restore the connection using Non-IP access to Linked
by HSL NEs. The channel works from CO to CPE direction and allows Management
LAN connectivity restore.
5. Management LAN connectivity does not guarantee the particular Service connectivity.
No Ethernet Traffic
When Traffic does not pass through the system and there are no alarms or conditions raised
in the system, then perform the following in the recommended order:
1. Check if any required by deployment managed entity (equipment and facilities) is
disabled (grayed-out in MetaASSIST View). Enable the disabled entities and check for
alarms. To resolve alarms, see Troubleshooting Alarmed Conditions (on page 15-6).
2. Check if any required by deployment managed entity (equipment and facilities) is not in
maintenance mode (when alarms and conditions are not monitored). Restore the managed
entities from maintenance mode, see Operating Alarms (on page 13-11). For facilities
(MLP, ETH, HSL), you can also refer to Service Suspension and Restoration (on page
15-10). Check for alarms. To resolve alarms, see Troubleshooting Alarmed Conditions
(on page 15-6).
3. Check if some SA (Service Affecting) Alarm/Condition are configured with Severity NA
(Not Alarmed). Check and reconfigure each SA alarm to appropriate severity, see
Modifying Alarm. Check for alarms. To resolve alarms, see Troubleshooting Alarmed
Conditions (on page 15-6).
4. The Ethernet Bridge (on page 5-3) of all NEs in the working topology must be
configured as 802.1Q (VLAN aware). Note that for some models, 802.1Q is the only
available setting.
5. Check the system for Ethernet Loop:
Enable STP on the system, see STP Configuration (on page 5-20);
Check if STP is also enabled on each ETH/HSL port, see STP Configuration (on
page 5-20);
The system will automatically suspend redundant links, the LNK LED will turn Amber.
To resolve the Ethernet loop, perform one of the following:
Keep STP enabled;
Disconnect redundant links and disable STP;
Resolve Ethernet loop on the external network equipment.
6. Check the system for incomplete VLAN configuration:
Make sure that traffic VLANs are configured and match with VLANs defined in all
Actelis systems and adjacent WAN and LAN network;
You can use 802.1D (VLAN unaware) mode to circumvent incomplete VLAN
configuration problems.