Dell S5148F-ON OS10 Enterprise Edition User Guide Release 10.3.2E-R2 - Page 69
Port-channel interfaces, Create port-channel, Add port member
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Output 0 errors, Output 0 invalid protocol Time since last interface status change : 00:00:11 Port-channel interfaces Port-channels are not configured by default. Link aggregation is a method of grouping multiple physical interfaces into a single logical interface - a link aggregation group (LAG) or port -channel. A port-channel aggregates the bandwidth of member links, provides redundancy, and load balances traffic. If a member port fails, the OS10 device redirects traffic to the remaining ports. A physical interface can belong to only one port-channel at a time, and a port-channel must contain interfaces of the same interface type and speed. OS10 supports up to 128 port-channels, with up to 32 10G or 40G ports per channel. To configure a port-channel, use the same configuration commands as for Ethernet port interfaces. Port-channels are transparent to network configurations and managed as a single interface. For example, configure one IP address for the group, and use the IP address for all routed traffic on the port-channel. By configuring port channels, you can create larger capacity interfaces by aggregating a group of lower speed links. For example, you can build a 40G interface by aggregating four 10G Ethernet interfaces together - if one of the four interfaces fails, traffic is redistributed across the three remaining interfaces. Static Dynamic Port-channels are statically configured. Port-channels are dynamically configured using link aggregation control protocol (LACP). Member ports of a LAG are added and programmed into the hardware in a predictable order based on the port ID, instead of in the order in which the ports come up. Load balancing yields predictable results across resets and reloads. Create port-channel You can create up to 128 port-channels, with up to 16 port members per group. Configure a port-channel similarly to a physical interface - you can enable or configure protocols, or assign access control lists (ACLs) to a port channel. After you enable the port-channel, you can place it in L2 or L3 mode. To place the port-channel in L2 mode or configure an IP address to place the port-channel in L3 mode, use the switchport command. 1 Create a port-channel in CONFIGURATION mode. interface port-channel id-number 2 Ensure that the port-channel is active in PORT-CHANNEL mode. no shutdown Create port-channel OS10(config)# interface port-channel 10 OS10(conf-if-po-10)# no shutdown Add port member When you add a port interface to a port-channel: • The port-channel configuration and administrative status are applied to member interfaces. • A port-channel operates in either L2 (default) or L3 mode. To place a port-channel in L2 mode, use the switchport mode command. To place a port-channel in L3 mode and remove L2 configuration before you configure an IP address, use the no switchport command. • All interfaces should have the same speed (recommended). Port-channels can contain a mix of 10G and 40G Ethernet interfaces, but interfaces that are not the same speed as the first channel member in the port-channel are automatically disabled. • An interface should not contain any non-default L2/L3 configuration settings - only the description and shutdown or no shutdowncommands are supported. You cannot add an IP address or a static MAC address to a member interface. Interfaces 69
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