New Features in Cisco MDS NX-OS Release 4.2(1a)
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
Table 13
Downgrade Behavior on an MDS 9500 Series Switch with 8-Gbps Module Installed (continued)
Crossbar Fabric
Mode
Switch Type
BM Mode
MDS 9509 or 9506
with 8-Gbps
module
BM Mode
MDS 9509 or 9506
without 8-Gbps
module
1. DB mode is the fabric mode that supports Generation 3 8-Gbps modules in an MDS 9513 switch chassis.
2. BM mode is the fabric mode that does not support Generation 3 8-Gbps modules in an MDS 9513 switch chassis.
New Features in Cisco MDS NX-OS Release 4.2(1a)
This section briefly describes the new features introduced in this release. Each feature description
includes the name of the Configuration Guide where the feature is documented in detail. The "New and
Changed" section of each book provides a list of all new features and includes links to the feature
description.
This section includes the following topics:
•
•
•
•
Product Documentation Changes
As of Cisco MDS NX-OS Release 4.2(1a), software configuration information is available in new
feature-specific configuration guides for the following information:
•
•
•
•
•
•
•
The information in these new guides previously existed in the Cisco MDS 9000 Family CLI
Configuration Guide. That configuration guide remains available on Cisco.com and should be used for
all software releases prior to MDS NX-OS Release 4.2(1a). Configuration guides address the features
introduced in or available in a particular release. Select and view the configuration guide that pertains to
the software installed in your switch.
Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 4.2(1a)
28
Software Version
4.2(1a)
4.2(1a)
Product Documentation Changes, page 28
Cisco MDS 9000 NX-OS Release 4.2(1a) New Features, page 29
NX-OS Feature Descriptions, page 29
Hardware Changes, page 31
System management
Interfaces
Fabric
Quality of service
Security
IP services
High availability and redundancy
Downgrade
Actual Install
Software Version
Behavior
3.3(x)
Abort
3.3(x)
Nondisruptive
Expected Install
Behavior
Abort.
Nondisruptive after
powerdown of
8-Gbps module.
Nondisruptive
OL-19964-02
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