Internal port ID on S and E series switches


For S and E series switches (except S1700 switches), sometimes the port number displayed in the debugging information is the internal number of a port, but not in the format similar to Gigabitethernet 2/0/1.
The internal port numbers are classified into two types:
Logical port number (LPort): The number starts from 0, and each number is unique in the system.
Physical port number (PhyPortID): The number starts from 0, and each number is unique on each card.

Other related questions:
Whether the CSS ID of a port can be canceled after S series modular switches establish a CSS
After S series modular switches establish a CSS, interfaces are numbered in the format of CSS ID/slot ID/subcard ID/port. The CSS ID cannot be deleted or cancelled. To delete the CSS ID, you must disable the CSS function.

How to configure load balancing for the Eth-Trunk on S series switches
S series switches (except the S1700) use a per-flow load balancing mechanism, which ensures that frames of the same data flow are forwarded on the same physical link, and different data flows are forwarded on different physical links. You can configure common load balancing mode to implement load balancing based on IP addresses or MAC addresses of packets. For L2, IP, and MPLS packets, you can also configure enhanced load balancing mode. Load balancing takes effect only for the outbound traffic. Therefore, load balancing modes can be different on the two ends of a link. 1. Commands for configuring common load balancing mode: [HUAWEI] interface Eth-Trunk 1 [HUAWEI-Eth-Trunk1] load-balance dst-mac 2. Commands for configuring enhanced load balancing mode: [HUAWEI] load-balance-profile a [HUAWEI-load-balance-profile-a] l2 field smac [HUAWEI-load-balance-profile-a] quit [HUAWEI] interface Eth-Trunk 1 [HUAWEI-Eth-Trunk1] load-balance enhanced profile a For configuration cases about common load balancing mode, see "Typical Ethernet Switching Configuration -Link Aggregation Configuration- Example for Configuring Link Aggregation in Manual Mode When Switches Are Directly Connected" in S1720&S2700&S3700&S5700&S6700&S7700&S9700 Typical Configuration Examples. The configuration cases of common load balancing are applicable to all S series switch models. The Sx700 series switch is used here as an example.

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