FCoE Cookbook for HP Virtual Connect Version 4.20 Firmware Enhancements May 2014

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 FCoE-capable Shared Uplink Sets must always be connected to a single Top of Rack switch in order to maintain the
SAN-A / SAN-B isolation.
Figure 8: FCoE-capable Shared Uplink Set LACP configuration support
FCoE ToR
Switch 1
FCoE ToR
Switch 2
FCoE
FCoE
VC Domain
FCoE ToR
Switch 1
FCoE ToR
Switch 2
FCoE FCoE
SUS-1
VC Domain
SUS-2
SUS-1
SUS-2
Active Active
Lossless Ethernet
Network
Active Active
Lossless Ethernet
Network
LACPLACP
LACPLACP
o Ethernet forwarding through link aggregation can break SAN A/B separation.
o This limitation remains true even when technology like HP iRF, Cisco vPC are used.