Loops will cause broadcast storms, thereby exhausting network resources and paralyzing the
network. Loops also cause flapping of MAC address tables and damages MAC address entries.
MSTP can be deployed to eliminate loops. MSTP blocks redundant links on a Layer 2 network
and trims the network into a loop-free tree.
As shown in Figure 8-7, to load balance traffic of VLANs 2 to 10 and traffic of VLANs 11 to
20, multiple MSTIs are created. MSTP defines a VLAN mapping table in which VLANs are
associated with spanning tree instances. Run MSTP on RouterA, SwitchA, SwitchB, SwitchC
and SwitchD.
Huawei AR3200 Series Enterprise Routers
Configuration Guide - LAN 8 MSTP Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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