Creating an Uplink Interface

Creating an Uplink Interface (Accessed by NNI/Uplink Interfaces)

To create an uplink interface:

1. In the Application View Bar, click LAGs ( ).
2. In the Common Tree, select the OLT.
3. Click the NNI/Uplink Interfaces tab, and then click Create (). The Create Uplink Interface dialog appears, displaying the Configuration tab:
    

   Figure 1: Create Uplink Interface Dialog - Configuration Tab
   
   
    

4. Select an available Interface AID from the drop-down list.
5. Enter a User Label of up to 32 printable characters.
6. Select a Module Type (SFP or XFP) from the drop-down list.
7. If the Speed of the port(s) to be added to this uplink interface is not Auto-1000 (1G) (the default), select the Module Type=XFP, and the correct Speed from the drop-down list box. (All the uplinks in an interface must be at the same speed.) For 1G ports, accept the default value, Auto-1000 (1G), which enables communication of near-end faults to the far end.
8. Change the Hashing Algorithm. The purpose of the hashing algorithm is, when an uplink interface is a LAG, to randomly distribute (load balance) traffic across multiple ports. (If an uplink interface consists of a single port, the switch doesn’t use the hashing algorithm.) The default is Source and Destination MAC, which means that the switch extracts source and destination MAC address information from the Ethernet packets and uses this information to calculate which port carries the traffic. Because the results of the hashing algorithm are always the same, traffic from a particular source and/or destination (depending on the option specified) always uses the same port. For example, using Source and Destination MAC means that all traffic from a specific piece of equipment in the network to another specific piece of equipment in the network always travels on the same port. Traffic from adjacent equipment likely travels on a different port. Set either the default or Source and Destination IP for best results.

   Note: To find out whether traffic needs to be load-balanced, check each port’s 15-Minute Utilization on the Traffic Analysis tab (refer to Viewing GbE Port Statistics). If the percentages are significantly uneven, change the hashing algorithm.

9. If necessary, change the DSCP Profile to mark traffic with the correct pbit based on the in-coming DSCP marking from the core network. Select a DSCP Profile directly from the drop-down list. The user can view or change the DSCP Profile, selecting Property directly from the Uplink Interface table.
10. If necessary, change Pause Frames’ value to match the setting of other equipment, such as the switch (default is Y).
11. If necessary, change the Uplink default VLAN value to the VLAN configured as the uplink interface.
12. In the Available Links box, using Shift and Ctrl as necessary, select the port(s) to include in this interface.
13. Click the Add button, to move the selected Available Links to the Selected Links column.
14. If this interface is configured to support the Link Aggregation Control Protocol (LACP), go to Creating a Link Aggregation Control Protocol (LACP) Uplink Interface, alternatively, LACP can be configured on this uplink interface using the Edit Uplink Interface procedure (refer to Editing an Uplink Interface).
15. Click the Apply button. A confirmation message is displayed.
    
    
     

13. Click the Ok button.
14. When finished, click the close button.
15. To view the new uplink interface, click Refresh ().

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