
Multi-Service IronWare Switching Configuration Guide 591
53-1003036-02
Chapter
18
Multi-Chassis Trunking (MCT)
Table 76 displays the individual devices and the Multi-Chassis Trunking (MCT) features they
support.
About Multi-Chassis Trunk (MCT)
A Multi-Chassis Trunk (MCT) is a trunk that initiates at a single MCT-unaware server or switch and
terminates at two MCT-aware switches.
Link Aggregation (LAG) trunks provide link level redundancy and increased capacity. However, LAG
trunks do not provide switch-level redundancy. If the switch to which the LAG trunk is attached fails,
the entire LAG trunk loses network connectivity. With MCT, member links of the LAG are connected
to two chassis. The MCT switches may be directly connected using an Inter-Chassis Link (ICL) to
enable data flow and control messages between them. In this model, if one MCT switch fails, a data
path will remain through the other switch.
TABLE 76 Supported Multi-Chassis Trunking (MCT) features
Features
supported
Brocade
NetIron XMR
Series
Brocade
MLX Series
Brocade
NetIron CES
2000 Series
BASE
package
Brocade
NetIron CES
2000 Series
ME_PREM
package
Brocade
NetIron CES
2000 Series
L3_PREM
package
Brocade
NetIron CER
2000 Series
Base
package
Brocade
NetIron CER
2000 Series
Advanced
Services
package
Multi-Chassis
Trunking (MCT)
Yes Yes Yes Yes Yes Yes Yes
Cluster
operation
features
Yes Yes Yes Yes Yes Yes Yes
MCT for VRRP or
VRRP-E
Yes Yes Yes Yes Yes Yes Yes
Dynamic Layer 3
Routing Over
MCT
Yes Yes No Yes Yes Yes Yes
IPv6 VRRP and
VRRP-E for MCT
Yes Yes Yes Yes Yes Yes Yes
MCT L2VPN
support
Yes Yes No Yes Yes No Yes
MCT for VPLS Yes Yes No Yes Yes No Yes
MCT for VLL Yes Yes No Yes Yes No Yes
MCT Snooping Yes Yes No Yes Yes No Yes
PIM over MCT Yes Yes No Yes Yes No Yes
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