– Member interfaces of a Layer 2 Eth-Trunk must be Layer 2 interfaces, and member
interfaces of a Layer 3 Eth-Trunk must be Layer 3 interfaces.
– An Eth-Trunk supports a maximum of eight member interfaces.
– A member interface cannot have any service or static MAC address configured.
– Ensure that interfaces added to an Eth-Trunk are hybrid interfaces (the default interface
type).
– An Eth-Trunk interface cannot have other Eth-Trunk interfaces as member interfaces.
– An Ethernet interface can be added to only one Eth-trunk interface. To add the Ethernet
interface to another Eth-trunk, delete the Ethernet interface from the current Eth-Trunk
first.
– Member interfaces of an Eth-trunk must be the same type. For example, an FE interface
and a GE interface cannot be added to the same Eth-trunk interface.
– Ethernet interfaces on different LPUs can be added to the same Eth-Trunk.
– The peer interface directly connected to a member interface of the local Eth-Trunk must
also be added to an Eth-Trunk; otherwise, the two ends cannot communicate.
– When member interfaces have different rates, the interfaces with lower rates may
become congested and packet loss may occur.
– After an interface is added to an Eth-Trunk, MAC address learning is performed by the
Eth-Trunk rather than the member interfaces.
– G.SHDSL interfaces that work in PTM mode cannot be added to an Eth-Trunk.
----End
1.3.5 (Optional) Configuring the Load Balancing Mode
Context
Perform the following steps on the AR3200 to configure the load balancing mode for an Eth-
Trunk interface.
Procedure
l Configuring a Layer 2 Eth-Trunk interface
1. Run:
system-view
The system view is displayed.
2. Run:
load-balance { dst-ip | dst-mac | src-ip | src-mac | src-dst-ip | src-dst-
mac }
The load balancing mode is configured for the Eth-Trunk.
By default, the load balancing mode of a Layer 2 Eth-Trunk is src-dst-mac.
Member interfaces of an Eth-Trunk perform per-flow load balancing. The local end
and the remote end can use different load balancing modes, without affecting each
other.
Huawei AR3200 Series Enterprise Routers
Configuration Guide - LAN 1 Link Aggregation Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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