Cisco Nexus 1000V Interface Configuration Guide, Release 4.2(1)SV2(2.1)
New and Changed Information
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New and Changed Information

New and Changed Information

This chapter contains the following sections:

New and Changed Information

This section lists new and changed content in this document by software release.

To find additional information about new features or command changes, see the Cisco Nexus 1000V Release Notes and Cisco Nexus 1000V Command Reference.

Table 1 New and Changed Features for the Cisco Nexus 1000V Interface Configuration Guide

Feature

Description

Changed in Release

Where Documented

Port channel vPC-HM

The interface level configuration mode does not support sub-group cdp and manual options for port-channel vPC-HM configuration.

Note   

Sub-group cdp and manual options for port-channel vPC-HM configuration are supported on the port-profile level configuration.

4.2(1)SV2(1.1)

Configuring Port Channels

Backup subgroups

You can assign up to seven backup subgroups when pinning the primary subgroup.

4.2(1)SV1(4a)

Configuring Port Channels

Port channel relative numbering

The subgroup numbering begins at zero and is not tied to the vmnic number.

4.2(1)SV1(4a)

Configuring Port Channels

Network state tracking for vPC-HM

Pinpoints link failures on a port channel configured for vPC-HM.

4.2(1)SV1(4)

Configuring Port Channels

VEM management of LACP

You can offload operation of the LACP protocol from the VSM to the VEMs.

4.2(1)SV1(4)

Configuring Port Channels

LACP

You can enable the LACP port channel function by turning on the feature using the feature lacp command.

4.2(1)SV1(4)

Configuring Port Channels

System Jumbo MTU

The system jumbo MTU value is fixed at 9000 and cannot be changed.

4.2(1)SV1(4)

Configuring Interface Parameters

Interface MTU

You can configure an interface MTU between 1500 and 9000.

4.2(1)SV1(4)

Configuring Interface Parameters

Mapping vEthernet interfaces to connected ports

vEthernet interfaces are now mapped to connected ports by MAC address as well as the DVPort number.

4.2(1)SV1(4)

Configuring Virtual Ethernet Interfaces

Global vEthernet interface controls

You can enable or disable the automatic vEthernet interface controls by deleting unused vEthernet interfaces, purging manual vEthernet configurations, and creating vEthernet interfaces.

4.2(1)SV1(4)

Configuring Virtual Ethernet Interfaces

Configuration limits

Configuration limits for vEthernet interfaces, vEthernet trunks, and port profiles were added.

4.0(4)SV1(2)

Interface Configuration Limits

show interface vethernet command

The show interface vethernet command now displays 5 minute input and output packet/bit rate statistics for the interfaces that you specify. The configuration example showing this command output was updated to reflect this change.

The show interface ethernet command output also provides these new statistics.

4.0(4)SV1(2)

Configuring Virtual Ethernet Interfaces

vPC-Host Mode

Support for manual creation of subgroups.

4.0(4)SV1(2)

Configuring Port Channels

Static Pinning

Support for attaching (or pinning) a vEthernet interface to a specific port channel subgroup.

4.0(4)SV1(2)

Configuring Port Channels