Mstp Configuration - Huawei Quidway S7700 Configuration Manual - Ethernet

Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet
About This Chapter
The Multiple Spanning Tree Protocol (MSTP) trims a ring network into a loop-free tree network.
It prevents replication and circular propagation of packets, provides multiple redundant paths
for Virtual LAN (VLAN) data traffic, and enables load balancing.
9.1 MSTP Overview
MSTP enables multiple VLANs to be grouped into a spanning-tree instance, forming a VLAN
mapping table. Each instance has a spanning-tree topology independent of other spanning-tree
instances. This architecture provides multiple forwarding paths for data traffic and enables load
balancing.
9.2 Configuring Basic MSTP Functions
MSTP based on the basic STP/RSTP function divides a switching network into multiple regions,
each of which has multiple spanning trees that are independent of each other. MSTP isolates
user traffic and service traffic, and load-balances VLAN traffic.
9.3 Configuring MSTP Multi-process
After an MSTP device binds its ports to different processes, the MSTP device performs the
MSTP calculation based on processes, and only relevant ports in each process take part in MSTP
calculation.
9.4 Configuring MSTP Parameters on an Interface
MSTP implements RSTP rapid convergence. To achieve rapid convergence, you need to
configure proper MSTP parameters.
9.5 Configuring MSTP Protection Functions
MSTP protection functions are as follows, and you can configure one or more functions as
required.
9.6 Configuring MSTP Interoperability Between Huawei Devices and Non-Huawei Devices
To enable Huawei devices to interwork with non-Huawei devices, configure proper parameters
and functions, including the BPDU format, MSTP protocol packet format, and digest snooping
function, on the Huawei devices running MSTP.
9.7 Maintaining MSTP
MSTP maintenance includes resetting MSTP statistics.
9.8 Configuration Examples
Issue 01 (2011-07-15)
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