Fabric OS FCIP Administrators Guide v6.4.0 (53-1001766-01, November 2010)

Fabric OS FCIP Administrator’s Guide 43
53-1001766-01
FCIP Design Considerations for the 7500 switch and FR4-18i blade
3
FIGURE 15 Network using FCIP
Compression on FCIP tunnels
Data compression can be enabled or disabled on FCIP tunnels. The default setting is to disable
compression.
Traffic shaping
Traffic can be shaped by establishing a rate limit per tunnel. A committed rate guarantees a fixed
amount of bandwidth and is assigned to a tunnel. The committed rate setting ensures that an FCIP
tunnel operates at the specific fixed rate for FCIP traffic. The rest of the possible 1000 Mbps rate
that a GE interface provides is available to other tunnels created on this GE interface. If the
committed rate is too small for the amount of FCIP traffic, the FCIP tunnel is limited to that rate and
performance may be affected. Total bandwidth of all committed and uncommitted rate tunnels
must not exceed 1000 Mbps. When allocating committed rates to tunnels, do not allocate more
bandwidth than the WAN can support or your FCIP tunnel may not be stable.
Fibre
Channel
initiator
Fibre
Channel
initiator
Fibre
Channel
Target
Fibre
Channel
Target
VE_Port
VE_Port
VE_Port
VE_Port
Data Center
FC SAN
Office
FC SAN
Office
FC SAN
Office
FC SAN
IP WAN
Network
Brocade
48000
with FR4-18i
Blade
Brocade
48000
with FR4-18i
Blade
Brocade
7500
Brocade
7500