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Chapter 4
FCIP over IP/MPLS Core
Figure 4-18
Compression Ratio Comparisons
12.0
SA-VAM
SA-VAM2
10.0
IPS high-throughput
IPS high-compression
MPS-Mode 1
8.0
MPS-Mode 2
MPS-Mode 3
6.0
4.0
2.0
0.0
Application Requirements
Before designing a WAN, it is important to understand the requirements of each application and how it
performs on the network. There are numerous applications available;
applications. The MAN/WAN should be able to provide the requirements that each application demands
to obtain maximum efficiency.
Table 4-2
Application Requirements
Application
Bandwidth
Tape backup
Typically 10 to 15 MB
per tape drive
Up to 40 MB per tape
drive (Super DLT
tapes).
OL-12518-01
Latency
Async or Sync
< 1–5 ms
Synchronous or
asynchronous.
Data Center High Availability Clusters Design Guide
Application Requirements
Table 4-2
generalizes some of the
Comments
Sensitive to delay.
Rely on SCSI
protocol for
timeouts and error
recovery.
Note—Once a
session is
interrupted, the
all-backup session is
lost.
4-29
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