Connecting two Huawei switches via optical ports
To connect two Huawei switches via optical ports, use compatible Huawei-certified SFP/SFP+ modules, matching fiber types, and configure the ports correctly for either standard uplink or stack connections.
Step 1: Choose Compatible Optical Modules
- Use Huawei-certified optical modules to ensure reliability and avoid non-certified transceiver alarms ( ).
- Match the module type to the port speed (e.g., 1G SFP for 1G ports, 10G SFP+ for 10G ports) ( ).
- Ensure the fiber type matches the module: single-mode modules with single-mode fiber, multimode modules with multimode fiber ( ).
Step 2: Physical Connection
- Insert the SFP/SFP+ modules into the optical ports of both switches.
- Connect the fiber patch cable between the two modules, ensuring proper TX/RX alignment.
- For stacking via optical ports, create logical stack ports and connect the physical ports accordingly ( ).
- If using multiple cables for stacking, connect them in chain or ring topology to increase bandwidth and provide redundancy ( ).
Step 3: Configure the Ports
- Check the port status using:
display interface xgigabitethernet0/0/xReplace0/0/xwith the actual port number ( ). - If the port shows Administratively DOWN, enable it with:
interface xgigabitethernet0/0/xundo shutdown - For stacking, assign physical ports to logical stack ports and ensure the master/standby ends are correctly connected ( ).
Step 4: Verify Optical Link
- Check the transceiver status and optical power:
display transceiver interface xgigabitethernet0/0/x verboseEnsure the received and transmitted optical power is within normal range ( ). - Perform a loopback test if the link does not come up to verify the module and fiber ( ).
Step 5: Troubleshooting
- Ensure fiber type and module type are compatible.
- Avoid using a higher-speed module on a lower-speed port.
- Disable non-certified transceiver alarms if using older certified modules:
transceiver phony-alarm-disable( ). - Confirm that the ports are not shutdown and that the fiber is properly seated. By following these steps, you can establish a reliable optical connection between two Huawei switches, whether for standard uplinks or for stacking purposes, ensuring proper module selection, port configuration, and link verification.
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