Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 4.x
New and Changed Information
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New and Changed Information

Table Of Contents

New and Changed Information


New and Changed Information


This chapter provides release-specific information for each new and changed feature in the Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 4.x. The latest version of this document is available at the following Cisco website:
http://www.cisco.com/en/US/docs/switches/datacenter/sw/4_2/nx-os/system_management/configuration/guide/sm_nx_os_cli.html

To check for additional information about Cisco NX-OS Release 4.2, see the Cisco NX-OS Release Notes available at the following Cisco website:
http://www.cisco.com/en/US/docs/switches/datacenter/sw/4_2/nx-os/release/notes/42_nx-os_release_note.html

summarizes the new and changed features for the Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 4.x, and tells you where they are documented.

Table 1 New and Changed Features for Release 4.2 

Feature
Description
Changed in Release
Where Documented

Memory thresholds

Changed the minor, severe, and critical default memory thresholds from 70, 80, and 90 to 85, 90, and 95.

4.2(4)

Chapter 13, "Configuring Memory Thresholds"

CDP support for VTP domain name

CDP advertises the VLAN Trunking Protocol (VTP) type-length-value field (TLV) in CDP version-2 packets.

4.2(1)

Chapter 4, "VTP Feature Support"

CFS Distribution for NTP

You can use Cisco Fabric Services (CFS) to distribute an NTP configuration to all CFS-enabled switches in the network.

4.2(1)

Chapter 3, "Distributing NTP Using CFS"

Chapter 2, "Enabling CFS to Distribute NTP Configurations"

Automatically generated system checkpoints

The software automatically generates a system checkpoint when disabling a feature or Layer 3 protocol, or license expiration could cause loss of configuration information.

4.2(1)

Chapter 7, "Automatically Generated System Checkpoints"

Checkpoints and rollback

The checkpoint and rollback features now provide full support for high availability.

4.2(1)

Chapter 7, "High Availability."

Filter SNMP requests by community using an ACL

You can assign an ACL to an SNMP community to filter SNMP requests

4.2(1)

Chapter 10, "Filtering SNMP Requests"

IPv6 support

Supports configuring IPv6 SNMP hosts.

4.2(1)

Chapter 10, "Configuring SNMP."

SNMP notifications added

The snmp-server enable traps command is added. The snmp-server enable traps trap-arg-scope-global command is added.

4.2(1)   

Chapter 10, "Enabling SNMP Notifications"

Use interfaces for SNMP notification receivers

You can use the snmp-server host source-interface command to assign a host on an interface. You can use the snmp-server source-interface command to designate an interface to receive SNMP notifications.

4.2(1)

Chapter 10, "Configuring SNMP Notification Receivers"

Diagnostics PortLoopback and StandbyFabricLoopback

The generic online diagnostics (GOLD) now include PortLoopback (test ID 5) and StandbyFabricLoopback (test ID 16).

4.2(1)

Chapter 12, "Runtime or Health Monitoring Diagnostics"

EEM events

You can use the event module status command to trigger an event when module status varies between online and offline.

You can use the event sysmgr memory command to trigger an event.

You can use the event sysmgr switchover command to trigger an event.

4.2(1)

Chapter 13, "Configuring Event Statements"

Layer 2 NetFlow

You can define Layer 2 keys in flexible NetFlow records that you can use to capture flows in Layer 2 interfaces.

4.2(1)

Chapter 16, "Guidelines and Limitations"

Chapter 16, "Configuring Layer 2 NetFlow"

CFS

Corrected examples in TACACS+ configuration.

4.1(4)

Chapter 2, "Enabling CFS to Distribute TACACS+ Configurations"

Rollback

Added the following note:

Note If you make a configuration change during atomic rollback, the rollback will fail.

4.1(4)

Chapter 7, "Implementing a Rollback"

Call Home

Added new commands to support HTTP and HTTPS: destination profile http and destination profile transport-method.

Note These command are not distributable with CFS. As a workaround, enter these commands after the commit command.

4.1(3)

Chapter 6, "Modifying a Destination Profile"

Call Home

Updated the Prerequisites and Guidelines and Limitations sections.

4.1(3)

Chapter 6, "Prerequisites for Call Home"

Chapter 6, "Guidelines and Limitations"

Rollback

Rollback fails for NetFlow if during rollback, you try to modify a record that is programmed in the hardware.

Rollback is not supported for checkpoints across software versions.

4.1(3)

Chapter 7, "Guidelines and Limitations"

Rollback

The default rollback type is atomic.

4.1(3)

Chapter 7, "Rollback Overview"

Chapter 7, "Implementing a Rollback"

EEM

Added a configuration section for memory thresholds.

Added a table of system policies.

4.1(3)

Chapter 13, "Configuring Memory Thresholds"

"Embedded Event Manager System Events and Configuration Examples"

SPAN

Added a table of SPAN session limits.

4.1(3)

Chapter 14, "Guidelines and Limitations"

NetFlow

Rollback fails for NetFlow if during rollback, you try to modify a record that is programmed in the hardware.

4.1(3)

Chapter 16, "Guidelines and Limitations"

CFS

Cisco Fabric Services (CFS) distributes data, including configuration changes, to all Cisco NX-OS devices in a network.

4.1(2)

Chapter 2, "Configuring CFS Distribution"

SPAN

Cisco Ethernet switched port analyzer (SPAN) destinations are enhanced to support intrusion detection by allowing the following:

Injecting packets to disrupt a TCP packet stream.

Enabling a forwarding engine to learn the MAC address of the IDS.

4.1(2)

Chapter 14, "Configuring SPAN"