Compression On Fcip Tunnels; Traffic Shaping - Brocade Communications Systems 8 Administrator's Manual

FIGURE 15

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.
Fabric OS FCIP Administrator's Guide
53-1001766-01
FCIP Design Considerations for the 7500 switch and FR4-18i blade
Fibre
Channel
initiator
Data Center
FC SAN
VE_Port
Brocade
7500
Brocade
48000
with FR4-18i
Blade
Fibre
Channel
Target
Network using FCIP
IP WAN
Network
VE_Port
VE_Port
Office
FC SAN
Office
FC SAN
Fibre
Channel
initiator
Office
FC SAN
VE_Port
Brocade
7500
Brocade
48000
with FR4-18i
Blade
Fibre
Channel
Target
3
43