Cisco MDS 9000 series Configuration Manual page 59

Chapter 2 Configuring FCIP
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
The auto mode (default) selects the appropriate compression scheme based on the card type and
Note
bandwidth of the link (the bandwidth of the link configured in the FCIP profile's TCP parameters).
Table 2-4
Table 2-4
Mode
mode1
mode2
mode3
With SAN-OS Release 3.3(1) and later and NX-OS Release 4.x, all compression options on the MDS
Note
9222i switch and the MSM-18/4 module, mean hardware compression. Starting with Release 4.2(1),
only auto compression and mode 2 compression are supported on the MDS 9222i switch, the MSM-18/4
module, and the SSN-16 module.
Table 2-5 lists the performance settings for different cards.
Table 2-5
Bandwidth
Any
>25 Mbps
10-25 Mbps
10 Mbps
The Cisco MDS 9216i and 9222i Switches also support the IP compression feature. The integrated
Note
supervisor module has the same hardware components that are available in the MPS-14/2 module.
The compression modes in Cisco SAN-OS Release 2.0(1b) and later and NX-OS Release 4.x are
Caution
incompatible with the compression modes in Cisco SAN-OS Release 1.3(1) and earlier.
Tip While upgrading from Cisco SAN-OS Release 1.x to Cisco SAN-OS Release 2.0(1b) or later and NX-OS
Release 4.x, we recommend that you disable compression before the upgrade procedure, and then enable
the required mode after the upgrade procedure.
If both ends of the FCIP link are running Cisco SAN-OS Release 2.0(1b) or later and NX-OS Release
4.x and you enable compression at one end of the FCIP tunnel, be sure to enable it at the other end of
the link.
OL-19525-01,Cisco MDS NX-OS Release 4.2(1)
lists the modes used for different cards.
Algorithm Classification
IPS Card MPS 14/2 Card
SW HW
SW SW
SW SW
Performance Settings
IPS Cards
-
mode 1
mode 2
mode 3
MSM-18/4/MDS 9222i/SSN-16
HW
HW
HW
MPS 14/2 Card MSM-18/4/MDS 9222i/SSN-16
- auto
mode 1 auto
mode 2 auto
mode 3 auto
Cisco MDS 9000 Family NX-OS IP Services Configuration Guide
Configuring FCIP
2-35