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19-19
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-6965-03, Cisco MDS SAN-OS Release 2.x
Chapter 19 FCIP Configuration
FCIP High Availability
Fibre Channel PortChannels
Figure 19-12 provides an example of a PortChannel-based load balancing configuration. To perform this
configuration, you need two IP addresses on each SAN island. This solution addresses link failures.
Figure 19-12 PortChannel Based Load Balancing
The following characteristics set Fibre Channel PortChannel solutions apart from other solutions:
• The entire bundle is one logical (E)ISL link.
• All FCIP links in the PortChannel should be across the same two switches.
• The Fibre Channel traffic is load balanced across the FCIP links in the PortChannel.
FSPF
Figure 19-13 displays a FSPF-based load balancing configuration example. This configuration requires
two IP addresses on each SAN island, and addresses IP and FCIP link failures.
Figure 19-13 FSPF-Based Load Balancing
FC fabric
IP
network
90857
PortChannel of
two FCIP links
FCIP link
FCIP link
FC fabric
Ethernet
switch
Ethernet
switch
Ethernet
switch
FC fabric
IP
network
90858
PortChannel of
two FCIP tunnels
FCIP link
FCIP link
FC fabric