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Huawei SDH Transmission Equipment OSN3500 SSN1EGS4 Parameter Introduction
The SSN1EGS4 single board is an Ethernet switching processing board, which is mainly used to solve the telecom application areas of Ethernet service access, bandwidth management, and Layer 2 switching of Ethernet services.
Typical networking applications of Ethernet switching processing board are shown in Figure 1, which can realize Ethernet access, aggregation, Layer 2 switching of Ethernet data, port isolation, flow classification, data flow control, VLAN management, priority configuration and other data features, as well as data encapsulation/de-encapsulation, virtual cascade, SDH mapping/de-mapping and other functions. At the same time, it can be docked with broadband access equipment and digital communication equipment to provide a network-wide solution.
Figure 1 Ethernet switching processing board networking and application
When configuring FE to GE aggregation service, the GE switching board can only be configured in 1000M full-duplex mode, the VLAN of aggregation service is variable, and the binding granule can use VC-3 or VC-12 level.
Optix OSN3500 SSN1EGS4 Single Board Feature Code
The single-board characterization code is the code located after the single-board name in the single-board bar code.The single-board characterization code of EGS4 is used to describe the single-board interface type.
The relationship between the EGS4 veneer characterization code and the interface type is shown in Table 1.
Table 1 Relationship between EGS4 single-board feature codes and interface types
| Single-board |
Characteristic code |
Interface type |
| ssn1egs410, ssn3egs410, ssn4egs410 |
10 |
1000BASE-SX (0.5km) |
| ssn1egs411, ssn3egs411, ssn4egs411 |
11 |
1000BASE-LX (10km) |
| ssn1egs412, ssn3egs412, ssn4egs412 |
12 |
1000BASE-VX (40km) |
| ssn1egs413, ssn3egs413, ssn4egs413 |
13 |
1000BASE-ZX (80km) |
| ssn1egs414, ssn4egs414 |
14 |
1000BASE-T (100m) |
Optix OSN3500 SSN1EGS4 Ethernet Service Tuning and Configuration
After selecting the correct single board, you need to tune and configure the single board. It contains four parts: single board hardware check, single board configuration, single board tuning and verification test.
Single-board hardware check
- Required: Check the veneer hardware:
- The markings on the single-board handle bar should be correct and clear.
- The front and back of the single board each device is complete, the surface is normal, no obvious signs of damage.
- Required: Confirm and record the bandwidth and slot information of the single board.
- Required: Check the matching relationship between the single board and the interface board and cables to ensure that the single board and cables match each other.
- Required: Insert and place the veneer board, please refer to Replacing Veneer Boards in the Field for the method of inserting and placing the veneer board. The veneer should be inserted to the bottom of the subrack along the guide slots and the veneer handle bar should be fastened properly.
- Required: Check the version matching relationship between the single board and the host computer and the network management to ensure that the single board version matching is used correctly.
Single Board Configuration
- Required: Add a logical single board, please refer to Adding a Single Board for specific operation.
- Required: Configure services, please refer to Configuring Ethernet Services.
- Required: Ethernet interface settings:
- Overhead byte setting:
- J2 byte: the setting of this parameter of the docking device must be consistent. Usually the default value is used. The default setting should be "HuaWei SBS" for outgoing and not enabled for incoming.
- Ethernet Interface Settings:
- Port Enable: when configuring Ethernet single board port service, this port needs to be set to enable.
- Working Mode: Generally, the Ethernet port of the docking device is required to work in the same working mode. If the working modes of the two ends do not match, there will be packet loss or rate reduction, and when the data volume is large, there may be a complete interruption of service.
For specific settings, see Checking Single Board Parameters.
Description:
See Ethernet Parameters for more descriptions of single board parameters.
- Optional: Configure Layer 2 switching management services, including:
- Enabling the IGMP Snooping protocol
- Configuring spanning tree
- Configuring the aging time
- Optional: configure QoS, see Configuring QoS.
- Optional: Configure Ethernet port aggregation, see Creating a LAG.
- Optional: configure test frames, see Configuring Test Frames.
Single Board Tuning
- Required: test Ethernet service channels, see Testing EoS Service Channels.
Verification Test
- Required: Observe the single-board indicator, by observing the status of the indicator on the handle bar, to see whether the single-board is normally on, the status light is all green means that the single-board is running normally. For the description of the single board indicator, please refer to the description of the single board alarm indicator.
- Required: Query the single-board alarms and performance events, and modify the connection or configuration of the single-board according to the alarms and performance until the related alarms disappear. To query alarms and performance events, see Browsing Current Alarms of a Network Element.
Optix OSN3500 SSN1EGS4 Ethernet Single Board Maintenance
Introduces the fault phenomena that may occur during the operation of the single board, and gives the basic ways of troubleshooting and precautions.
Troubleshooting
The common fault phenomena and processing methods of EGS4 single board are shown in Table 1.
Table 1 Common troubleshooting methods for EGS4 single boards
| Fault phenomenon |
Common Failure Causes |
Troubleshooting Methods |
| Service Interruption |
- VCTRUNK port service interruption
- Single Ethernet port service interruption
- Service interruption on all Ethernet ports
|
See Handling Service Interruption Troubleshooting. |
| Transient Service Disruption |
- Single VCTRUNK port service transient interruption
- Single Ethernet port service transient
- Protocol-caused service transient
|
See Handling Service Transient Troubleshooting. |
| Service Packet Loss |
- Ethernet port negotiation results in half-duplex resulting in packet loss
- Service packet loss due to an error code on the line side
|
See Handling Service Packet Loss Faults. |
| Device Docking |
- Single Ethernet port docking failure
- VCG port docking failure
- LCAS docking failure
|
See Handling Device Docking Faults. |
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