NOTE
The normal mode is recommended. If the fast mode is adopted, ARP entries will be frequently deleted,
causing the CPU usage on the MPU or LPU to reach 100%. As a result, network flapping frequently occurs.
8.3.4 Checking the Configuration
You can verify that the configurations take effect after configuring STP/RSTP parameters that
affect the topology convergence.
Prerequisite
The parameters that affect the topology convergence have been configured.
Procedure
l Run the display stp [ interface interface-type interface-number ] [ brief ] command to
view spanning-tree status and statistics.
----End
8.4 Configuring RSTP Protection Functions
RSTP protection functions are as follows, and you can configure one or more functions as
required.
8.4.1 Establishing the Configuration Task
Before configuring RSTP protection functions, familiarize yourself with the applicable
environment, complete the pre-configuration tasks, and obtain the required data. This will help
you complete the configuration task quickly and accurately.
Applicable Environment
RSTP provides the following protection functions, as listed in Table 8-7.
Table 8-7 RSTP Protection Function
Protection
Function
Scenario Configuration Impact
BPDU
protection
An edge port changes to be a
non-edge port after
receiving a BPDU, which
triggers spanning tree
recalculation. If an attacker
keeps sending bogus BPDUs
to a switching device,
network flapping occurs.
After BPDU protection is enabled on the
switching device, the switching device shuts
down the edge port if the edge port receives
an RST BPDU, and notifies the NMS of the
shutdown event. The attributes of the edge
port are not changed.
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 8 STP/RSTP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
400
To Next Page
Loading...
