Huawei quidway s7700 - Page 426

Figure 8-3 Networking diagram of configuring basic STP functions
PC1
SwitchA
GE1/0/2
GE1/0/1 GE1/0/1
GE1/0/2
GE1/0/3
GE1/0/3
GE1/0/1
GE1/0/3
Network
SwitchC SwitchB
STP
Blocked port
SwitchD
GE1/0/1
GE1/0/3
GE1/0/2
PC2
GE1/0/2
Root
Bridge
Configuration Roadmap
The configuration roadmap is as follows:
1. Configure basic STP functions, including:
(1) Configure the STP mode for the ring network.
(2) Configure primary and secondary root bridges.
(3) Set path costs for ports to block certain ports.
(4) Enable STP to eliminate loops.
NOTE
STP is not required on the interfaces connected to terminals because these interfaces do not
need to participate in STP calculation.
Data Preparation
To complete the configuration, you need the following data:
l GE interface number, as shown in Figure 8-3
l Primary root bridge SwitchA and secondary root bridge SwitchD
l Path cost of a port to be blocked (20000 is used in this example)
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.
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