Huawei quidway s7700 - Optional) Setting the Timeout Interval for Receiving LACP Packets; Optional) Configuring a Profile of Enhanced Eth-Trunks in Load Balancing Mode

By default, the delay for LACP preemption is 30 seconds.
Enabling the LACP preemption function ensures that the interface with the highest LACP
priority can be an active interface. For example, when an interface with the highest priority
becomes inactive due to a failure, and then recovers, the interface can become an active interface
if the LACP preemption function is enabled; if the LACP preemption function is disabled, the
interface cannot become an active interface again.
The delay for LACP preemption refers to the period in which an inactive interface of the Eth-
Trunk in static LACP mode waits before it becomes active.
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2.4.9 (Optional) Setting the Timeout Interval for Receiving LACP
Packets
Context
Do as follows on the S7700 where you need to set the timeout interval for receiving LACP
packets.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface eth-trunk trunk-id
The Eth-Trunk view is displayed.
Step 3 Run:
lacp timeout { fast | slow }
The timeout for receiving LACP protocol packets the Eth-Trunk is set.
NOTE
l After the lacp timeout command is used, the local end informs the peer end of the timeout interval
through LACP packets. If the fast is selected, the interval for sending LACP packets is 1 second. If
the slow keyword is selected, the interval for sending LACP packets is 30 seconds.
l The timeout interval for receiving LACP packets is three times the interval for sending LACP packets.
That is, when the fast keyword is used, the timeout interval for receiving LACP packets is 3s; when
the slow keyword is used, the timeout interval for receiving LACP packets is 90s.
l You can select different keywords on the two ends. To facilitate the maintenance, however, it is
recommended that you select the same keyword on both ends.
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2.4.10 (Optional) Configuring a Profile of Enhanced Eth-Trunks in
Load Balancing Mode
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 2 Link Aggregation Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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