Multi-Chassis Trunking
• Multi-Chassis Trunking (MCT)
• Enhancement to Link Aggregation Groups
• Provides nodal in addition to link and modular
redundancy
• Operates at the physical level to provide sub-
second failover
• MCT Peers
• Pair of physical switches act as one logical
switch
• Access switch/server connected via LAG
• LAGs are spread across the MCT pair
• MCT Pair a single logical switch
• No loop in the logical topology
• All links are now Active/Active links
• Sub-second for link/module or node failure
How it works
© 2010 Brocade Communications Systems, Inc. CONFIDENTIAL—For Internal Use Only
Standard Link Aggregation
IEEE 802.3ad
MCT Peers
Acting as a single logical
switch.
Transparent to MCT
Support for third-party devices
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