Cisco Nexus 1000V Network Segmentation Manager Configuration Guide, Release 4.2(1)SV2(1.1)
Configuring Network Segmentation Manager
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Contents

Configuring Network Segmentation Manager

This chapter contains the following sections:

Information About Network Segmentation Manager

Prerequisites

Network Segmentation Manager has the following prerequisites:

  • You have installed the Cisco Nexus 1000V software and configured the following using the Cisco Nexus 1000V Installation and Upgrade Guide
  • You have a vCenter Server configured in vCloud Director and vShield Manager. See the Cisco Nexus 1000V and VMware Compatibility Information for information on the version compatibility of the vCloud Director and vShield Manager for Cisco Nexus 1000V.
  • You have associated a vShield Manager with every vCenter Server.
  • You have created an organization in vCloud Director.
  • You have created provider and organization vDC in vCloud Director.
  • Ensure that Virtual Supervisor Module (VSM) has an active SVS connection.
  • Ensure that Virtual Supervisor Module (VSM)- Virtual Ethernet Module (VEM) connectivity is functioning.
  • You have added hosts to Cisco Nexus 1000V.
  • Ensure that the user specified for NSM on vShield Manager is a network administrator.

Guidelines and Limitations

Network Segmentation feature has the following configuration guidelines and limitations:

  • You must enable the VLANs that are going to be used through NSM and add them to the uplink.
  • Ensure that the infrastructure has port 443 open.
  • You must enable feature http-server on Cisco Nexus 1000V in order to allow web service communication.
  • You must enable the segmentation feature in order to use NSM for Virtual Extensible Local Area Network (VXLAN) via vCloud Director. In a network segmentation policy, VXLAN is used for a segmentation policy. See the Cisco Nexus 1000V VXLAN Configuration Guide.

Default Settings

Parameters Default

VLAN policy (port-profile template)

default_vlan_template

segmentation policy (port-profile template)

default_segmentation_template

The default port-profiles default_vlan_template and default_segmentation_template are created automatically.


Note

If a network creation request comes with a tenant ID and backing type that does not match a network segmentation policy, the default_vlan_template or default_segmentation_template is used during network creation from vCloud Director. For more information, see the Cisco Nexus 1000V VXLAN Configuration Guide. See the Cisco Nexus 1000V and VMware Compatibility Information for information on the supported network pool in vCloud Director with Cisco Nexus 1000V.

Configuring the Network Segmentation Manager

The following section guides you through the NSM configuration process shown in the following figure. After completing each procedure, return to this section to make sure that you have completed all required procedures in the correct sequence.

Figure 1. Configuring Network Segmentation Manager



Procedure
    Step 1   Enable the NSM feature. See Enabling the NSM Feature.
    Step 2   Create a port profile for network segmentation policies. See Creating a Port Profile for Network Segmentation Policies.

    When you enable the NSM feature, the default port profiles are created automatically. This step is not required if you use the default port-profiles (default_vlan_template and default_segmentation_template).

    Step 3   Create network segmentation policies. See Creating Network Segmentation Policies.

    When you enable the NSM feature, the default network segmentation policies are created automatically. This step is required only if the port profiles created in the previous step need to be inherited to the network segmentation policies for specific tenant IDs.

    Step 4   Register NSM with vShield Manager. See Registering vShield Manager with Network Segmentation Manager.

    Enabling the NSM Feature

    Before You Begin

    You must be logged in to the CLI in EXEC mode.

    Procedure
       Command or ActionPurpose
      Step 1switch# configure terminal 

      Enters global configuration mode.

       
      Step 2switch(config)# feature network-segmentation-manager 

      Enables the Network Segmentation Manager feature.

       
      Step 3switch(config)# show feature  (Optional)

      Displays the enabled status for Cisco Nexus 1000V features such as NSM.

       

      This example shows how to enable the NSM feature and show the output:

      switch# configure terminal
switch(config)# feature network-segmentation-manager
switch# show feature
Feature Name          Instance  State
--------------------  --------  --------
cts                   1         disabled
dhcp-snooping         1         disabled
http-server           1         enabled
lacp                  1         disabled
netflow               1         disabled
network-segmentation  1         enabled    
port-profile-roles    1         disabled
private-vlan          1         disabled
segmentation          1         disabled
sshServer             1         enabled
tacacs                1         disabled
telnetServer          1         disabled
vtracker              1         disabled
switch(config)#

      Creating a Port Profile for Network Segmentation Policies

      You can create a port profile to use features of Cisco Nexus 1000V for network segmentation policies.

      Before You Begin
      • You must be logged in to the CLI in EXEC mode.
      • The VSM must be connected to vCenter Server.
      • The NSM feature is enabled.
      Procedure
         Command or ActionPurpose
        Step 1switch# configure terminal 

        Enters global configuration mode.

         
        Step 2switch(config)# port-profile [ type vethernet ] name 

        Enters port profile configuration mode for the named port profile.

         
        Step 3switch(config-port-prof)# no shutdown 

        Administratively enables all ports in the profile.

         
        Step 4switch(config-port-prof)# state enabled 

        Enables the port profile and applies its configuration to the assigned ports.

         
        Step 5switch(config-port-prof)# show running-config port-profile  (Optional)

        Displays the configuration for verification.

         

        This example shows how to create a segmentation type port profile and display the output:

        switch# configure terminal
switch(config)# port-profile type vethernet ABC_profile_segmentation
switch(config-port-prof)# no shutdown
switch(config-port-prof)# state enabled
switch(config-port-prof)# show running-config port-profile ABC_profile_segmentation
!Command: show running-config port-profile ABC_profile_segmentation
!Time: Thu Dec  1 19:58:44 2011

version 4.2(1)SV1(5.1)
port-profile type vethernet ABC_profile_segmentation
  no shutdown
  state enabled
switch(config-port-prof)#

        Creating Network Segmentation Policies

        Network segmentation policies are a set of policies that inherit customized port profiles. The policy type can be either VLAN or Segmentation. This policy type corresponds to the network pool type in the vCloud Director. VLAN network segmentation policies are used for networks created from VLAN-backed network pools. Segmentation network segmentation policies are used for networks created from network isolation-backed network pools in the vCloud Director 1.5 and VXLAN-backed network pools in the vCloud Director 5.1.

        The network segmentation policies also contains a tenant ID and a reference to a port profile that may contain other policies for Cisco Nexus 1000V features. Each tenant ID is unique and can be associated with only one Segmentation and one VLAN network segmentation policy. The tenant ID correlates to the Organization Universally Unique Identifier (UUID) in the vCloud Director. For more information on retrieving the organization UUID from VMware vCloud Director, see 2012943.


        Note

        If a network segmentation policy with a tenant ID is not created, the default_vlan_template or default_segmentation_template is used during network creation from vCloud Director. For more information, see the Cisco Nexus 1000V VXLAN Configuration Guide. See the Cisco Nexus 1000V and VMware Compatibility Information for information on the supported network pool in vCloud Director with Cisco Nexus 1000V.

        Before You Begin
        • You are logged in to the CLI in EXEC mode.
        • The NSM feature is enabled.
        • You know the tenant IDs for tenants that require non default network segmentation policies. The tenant IDs for network segment policies can be found on vCloud Director. It is located in the address bar of the browser when viewing an organization. In the following example, https://[VCloud_director_IP]/cloud/#/vAppListPage?org=91e87e80-e18b-460f-a761-b978c0d28aea the tenant ID is "91e87e80-e18b-460f-a761-b978c0d28aea"
        • You must create the port profiles with all the required feature port profiles before importing them to the network segmentation policy. To create a port profile, see Creating a Port Profile for Network Segmentation Policies.
        • You have knowledge about port profile inheritance. See the Cisco Nexus 1000V Port Profile Configuration Guide.
        Procedure
           Command or ActionPurpose
          Step 1switch# configure terminal 

          Enters global configuration mode.

           
          Step 2switch(config)# network-segment policy name 

          Creates a network segmentation policy. The policy name can be up to 80 characters and must be unique for each policy on the NSM.

           
          Step 3switch(config-network-segment-policy)# description description 

          Adds a description of up to 80 ASCII characters to the policy.

           
          Step 4switch(config-network-segment-policy)# type { segmentation | VLAN } 

          Defines the network segmentation policy type. The policy type can be Segmentation or VLAN. For segmentation policy, VXLAN is used. For more information, see the Cisco Nexus 1000V VXLAN Configuration Guide .

          The policy type corresponds to the network pools (VLAN-backed or network isolation-backed) in the vCloud Director.

          Once configured, the type cannot be changed.

           
          Step 5switch(config-network-segment-policy)# id {vCloud Director Organization tenant-id } 

          Associates the network segmentation policy with the tenant ID. The tenant ID correlates to the Organization UUID in the vCloud Director and cannot be changed once it is configured.

           
          Step 6switch(config-network-segment-policy)# import port-profile name 

          Associates the port profile with the network segmentation policy. Each network created that uses this network segmentation policy will inherit the associated port profile.

           
          Step 7switch(config-network-segment-policy)# show running-config network-segment policy  (Optional)

          Displays the network segmentation policy configuration.

           

          This example shows how to create a NSM policy for ABC Inc. for VXLAN networks.

          switch# configure terminal
switch(config)# network-segment policy abc-policy-vxlan
switch(config-network-segment-policy)# description network segmentation policy for ABC for 
VXLAN networks
switch(config-network-segment-policy)# type segmentation
switch(config-network-segment-policy)# id f5dcf127-cdb0-4bdd-8df5-9515d6dc8170 

switch(config-network-segment-policy)# import port-profile ABC_profile_segmentation 
switch(config-network-segment-policy)# show running-config network-segment policy abc-policy-vxlan
!Command: show running-config network-segment policy abc-policy-vxlan
!Time: Fri Aug 26 18:34:50 2011
version 4.2(1)SV1(5.1) 
feature network-segmentation-manager
network-segment policy abc-policy-vxlan
description network segmentation policy for ABC for VXLAN networks
id f5dcf127-cdb0-4bdd-8df5-9515d6dc8170
type segmentation
import port-profile port-profile ABC_profile_segmentation 
switch(config-network-segment-policy)#

          This example shows how to create a NSM policy for ABC Inc. for VLAN networks:

          switch# configure terminal
switch(config)# network-segment policy abc-policy-vlan
switch(config-network-segment-policy)# description network segmentation policy for ABC for 
VLAN networks
switch(config-network-segment-policy)# type vlan
switch(config-network-segment-policy)# id f5dcf127-cdb0-4bdd-8df5-9515d6dc8170
switch(config-network-segment-policy)# import port-profile ABC_profile_vlan
switch(config-network-segment-policy)#

          Note

          As a best practice, if a tenant specific policy is defined through network segmentation policies, you should define it for both segmentation and VLAN types.

          Registering vShield Manager with Network Segmentation Manager

          Before You Begin
          • You are logged in to vShield Manager.
          • You are logged in to vShield Manager.
          • The vShield Manager is connected to vCenter Server.
          • The NSM feature is enabled.
          • You know the range of multicast addresses.
          • You know the segment ID pool.
          • Ensure that the segment ID range allocated to vShield Manager does not overlap with other instances in the network or VXLANs used on the Cisco Nexus 1000V.
          • Ensure that the user specified for NSM on vShield Manager is a network administrator.
          Procedure
            Step 1   Verify the vShield Manager version.
            • In vShield Manger 5.0.1 or 5.0.2, perform the following steps:
            1. In the Settings and Report pane, click Configuration.
            2. Click Networking. The Edit Settings window opens.
            3. Enter the segment ID pool. The segment ID pool should be greater than 5000.
            4. Enter the multicast address range.
            5. Click Ok.
            • In vShield Manger 5.1, perform the following steps:
            1. In the Settings and Report pane, click Configuration.
            2. Click Networking. The Edit Settings window opens.
            3. Enter the segment ID pool. The segment ID pool should be greater than 5000.
            4. Enter the multicast address range.
            5. Click Ok.
            Step 2   In the vShield Manager, navigate to the External Switch Providers window.
            Step 3   Enter the name of the switch.
            Step 4   Enter the NSM API service URL (https://Cisco-VSM-IP-Address/n1k/services/NSM).
            Step 5   Enter the network administrator username and password.
            Step 6   Accept the network SSL thumbprint.
            Step 7   In the External Switch Providers window, a green check mark in the Status solumn indicates that the connection between vShield Manager and NSM is established.
            Step 8   You can verify the registration of the vShield Manager with NSM by entering the following command on the Cisco Nexus 1000V CLI:

            Example:
            switch# show network-segment manager switch
switch: default_switch
state: enabled
dvs-uuid: d4 e7 12 50 89 db 3b c4-8d 4d 4c 36 ca 1c d1 f0
dvs-name: nexus1000v
mgmt-srv-uuid: 087F202C-8937-4F1E-8676-6F714C1AB96C
reg status: registered
last alert: 30 seconds ago
connection status: connected 
switch#

            Unregistering vShield Manager with Network Segmentation Manager

            Before You Begin
            • You are logged in to vShield Manager.
            • The vShield Manager is registered with NSM
            Procedure
              Step 1   In the vShield Manager, navigate to the Settings and Report window.
              Step 2   In the Settings and Reports pane, click Configuration.
              Step 3   Click Networking. The Edit Settings window opens.
              Step 4   In the External Switch Providers pane, click the Delete link for the switch that you wish to unregister.
              Step 5   You can verify that the vShield Manager has been unregistered by enetering the following command on the Cisco Nexus 1000V CLI:

              Example:
              switch# show network-segment manager switch
switch: default_switch
  state: enabled
  dvs-uuid: ff 05 32 50 5b d5 db fe-da 48 70 e1 0f bd ae 43
  dvs-name: cinquedia-vsm
  mgmt-srv-uuid: 35B101C8-DE9B-42F9-BE85-284DD679367D
  reg status: unregistered
  last alert: - seconds ago
  connection status: disconnected
switch#

              Verifying the NSM Configuration

              Use the following commands to verify the Network Segment Manager configuration:

              Command Purpose

              show network-segment manager switch

              Displays the Cisco Nexus 1000V configured with NSM.

              show running-config port-profile

              Displays the port profile configuration.

              show vlan private-vlan [ type ]

              Displays the NSM policy configuration.

              Configuration Examples for Network Segmentation Manager

              Procedure
                Step 1   Enable Network Segmentation Manager.

                Example: 
                switch# configure terminal
switch(config)# feature network-segmentation-manager
switch(config)#
                Step 2   Create port profiles for segmentation and VLAN policies.

                Example:
                switch# configure terminal
switch(config)# port-profile type vethernet ABC_profile_segmentation
switch(config-port-prof)# no shutdown
switch(config-port-prof)# state enabled

switch# configure terminal
switch(config)# port-profile type vethernet ABC_profile_vlan
switch(config-port-prof)# no shutdown
switch(config-port-prof)# state enabled
switch(config-port-prof)#
                Step 3   Create a NSM policy.

                Example:
                switch# configure terminal
switch(config)# network-segment policy abc-policy-vxlan
switch(config-network-segment-policy)# description network segmentation policy for ABC for 
VXLAN networks
switch(config-network-segment-policy)# type segmentation
switch(config-network-segment-policy)# id f5dcf127-cdb0-4bdd-8df5-9515d6dc8170
switch(config-network-segment-policy)# import port-profile ABC_profile_segmentation 

switch# configure terminal
switch(config)# network-segment policy abc-policy-vlan
switch(config-network-segment-policy)# description network segmentation policy for ABC for 
VLAN networks
switch(config-network-segment-policy)# type vlan
switch(config-network-segment-policy)# id f5dcf127-cdb0-4bdd-8df5-9515d6dc8170
switch(config-network-segment-policy)# import port-profile ABC_profile_vlan
switch(config-network-segment-policy)#
                Step 4   Verify the configuration.

                Example:
                switch# configure terminal
switch(config)# show running-config network-segment policy abc-policy-vxlan
!Command: show running-config network-segment policy abc-policy-vxlan 

!Time: Fri Aug 26 18:34:50 2011
version 4.2(1)SV1(5.1) 
feature network-segmentation-manager
network-segment policy abc-policy-vxlan
description network segmentation policy for ABC for VXLAN networks
id f5dcf127-cdb0-4bdd-8df5-9515d6dc8170 
type segmentation
import port-profile port-profile ABC_profile_segmentation 
switch(config)#

                Changing a Port Profile Associated with a Network Segmentation Policy

                During a network creation in the vCloud Director, network segmentation policies are created on the NSM and these network segmentation policies are inherited on a port profile. In order to associate a different port profile with the deployed network, you can change the port profile associated with the network segmentation policy.

                To change the port profile associated with the network segmentation policy perform the following steps:

                Procedure
                  Step 1   Identify all the networks associated with the network segmentation policy. See Identifying the Networks Associated with the Network Segmentation Policy.
                  Step 2   Manually remove the inheritance for the existing port profile. See section "Removing Inherited Policies from a Port Profile" in the Cisco Nexus 1000V Port Profile Configuration Guide for more information.
                  Step 3   Manually inherit the new port profile that will be associated with the network segmentation policy. See section "Inheriting a Configuration from a Port Profile" in the Cisco Nexus 1000V Port Profile Configuration Guide for more information.
                  Step 4   Update the network segmentation policy. For more information, see Updating the Network Segmentation Policy.

                  Identifying the Networks Associated with the Network Segmentation Policy

                  You can identify the networks associated with the network segmentation policy.

                  Before You Begin
                  • You are logged in to the CLI in configuration mode.
                  • The NSM feature is enabled.
                  Procedure
                     Command or ActionPurpose
                    Step 1switch# configure terminal 

                    Enters global configuration mode.

                     
                    Step 2switch# show network-segment policy usage 

                    Displays the network segmentation policy usage by networks.

                     

                    This example shows how to identify the networks that are associated with a network segmentation policy.

                    switch(config)# show network-segment policy usage 
network-segment policy default_segmentation_template
dvs.VCDVSint-org-cn2-e46e9686-2327-49df-ad5c-a3f89c00cfb8
network-segment policy default_vlan_template
network-segment policy abc-policy-vxlan
dvs.VCDVSint-org-nexus-6141babd-bdc8-4e86-8f16-1ac786fb377f
network-segment policy abc-policy-vlan
switch(config)#

                    Updating the Network Segmentation Policy

                    You can update a network segmentation policy.

                    Before You Begin
                    • You are logged in to the CLI in EXEC mode.
                    • The NSM feature is enabled.
                    • You know the tenant IDs for the tenants that require non default network segmentation policies.
                    • You must create the port profiles with all the required feature port profiles before importing them to the network segmentation policy.
                    • You have knowledge about port profile inheritance. See the Cisco Nexus 1000V Port Profile Configuration Guide.
                    Procedure
                       Command or ActionPurpose
                      Step 1switch# configure terminal 

                      Enters global configuration mode.

                       
                      Step 2switch(config)# network-segment policy name 

                      Creates a network segmentation policy. The policy name can be up to 80 characters and must be unique for each policy on the NSM.

                       
                      Step 3switch(config-network-segment-policy)# import port-profile name force 

                      Forces the new port profile to be used and migrates existing the networks to the new port profile. Each network created that uses this network segmentation policy will inherit the associated port profile.

                      Note   

                      The force option overrides any checks in the NSM that prevent you from modifying the port profile. After updating the network segmentation policy, a warning is displayed listing any networks that are not inheriting the new port profile.

                       
                      Step 4switch(config-network-segment-policy)# show running-config network-segment  (Optional)

                      Displays the network segmentation policy configuration.

                       

                      This example shows how to update the network segmentation policy:

                      switch# configure terminal
switch(config)# show running-config network-segment policy abc-policy-vxlan

network-segment policy abc-policy-vxlan
description network segmentation policy for ABC for VXLAN networks
type segmentation
id f5dcf127-cdb0-4bdd-8df5-9515d6dc8170
import port-profile ABC_profile_segmentation

switch(config)# network-segment policy abc-policy-vxlan
switch(config-network-segment-policy)# import port-profile ABC_profile_segmentation_new 
force
switch(config)# show running-config network-segment policy abc-policy-vxlan

network-segment policy abc-policy-vxlan
description network segmentation policy for ABC for VXLAN networks
type segmentation
id f5dcf127-cdb0-4bdd-8df5-9515d6dc8170
import port-profile ABC_profile_segmentation_new
switch#

                      Changing the Network Segmentation Policy Associated with a Network

                      During a network creation in the vCloud Director, network segmentation policies are created on the NSM. In order to use other non default policies for any new or old networks associated with an Organization vDC in the vCloud Director, you must change the network segmentation policy associated with a network.

                      To change the network segmentation policy associated with a network, perform the following steps:

                      Procedure
                        Step 1   Identify all the networks that need to be migrated. See Identifying the Networks.
                        Step 2   Manually remove the inheritance of the port profile associated with the network segmentation policy from the network. See section "Removing Inherited Policies from a Port Profile" in the Cisco Nexus 1000V Port Profile Configuration Guide for more information.
                        Step 3   Manually inherit the new port profile that will be associated with the network segmentation policy on the network. See section "Inheriting a Configuration from a Port Profile" in the Cisco Nexus 1000V Port Profile Configuration Guide for more information.
                        Step 4   Migrate the networks from the default network segmentation policy to the non default network segmentation policy. See Migrating Networks to Non Default Network Segmentation Policy.

                        Identifying the Networks

                        Before You Begin
                        • You are logged in to the CLI in configuration mode.
                        • The NSM feature is enabled.
                        Procedure
                           Command or ActionPurpose
                          Step 1switch# configure terminal 

                          Enters global configuration mode.

                           
                          Step 2 switch(config)# show network-segment network  

                          Displays the networks associated with a network segmentation policy.

                           

                          This example shows you how to display the networks associated with a network segmentation policy:

                          switch(config)# show network-segment network 

network dvs.VCDVSint-org-cn2-e46e9686-2327-49df-ad5c-a3f89c00cfb8
tenant id: 2b4ca1b2-ba8e-456c-b772-a4730af16e2e
network-segment policy: default_segmentation_template
segment id: 4107
multicast ip: 225.0.0.1

network dvs.VCDVSint-org-nexus-6141babd-bdc8-4e86-8f16-1ac786fb377f
tenant id: 91e87e80-e18b-460f-a761-b978c0d28aea
network-segment policy: seg-template-nexus-org
segment id: 4108
multicast ip: 225.0.0.2

switch(config)#

                          Migrating Networks to the Non Default Network Segmentation Policy

                          You can migrate the networks from the default network segmentation policy to the non default network segmentation policy.

                          Before You Begin
                          • You are logged in to the CLI in EXEC mode.
                          • The NSM feature is enabled.
                          • You know the tenant IDs for the tenants that require nondefault network segmentation policies.
                          • You have knowledge of port profile inheritance. See the Cisco Nexus 1000V Port Profile Configuration Guide
                          Procedure
                             Command or ActionPurpose
                            Step 1switch# configure terminal 

                            Enters global configuration mode.

                             
                            Step 2switch(config)# network-segment policy migrate id isolation_id type nw_type dest-policy policy 

                            Migrates the the networks from the default network segmentation policy to the nondefault destination network segmentation policy.

                            • isolation_id: Tenant ID of for the networks to be migrated.
                            • nw_type: Type of networks (VLAN or Segmentation) to be migrated
                            • policy: Name of the destination network segmentation policy to migrate to.
                            Note   

                            If there are any existing networks that match the tenant ID and type, but are not inheriting the port profile associated with the destination network segmentation policy, a warning will be displayed listing the port-profiles that are not migrated.

                             
                            Step 3switch(config)# show network-segment network  (Optional)

                            Displays the networks associated with a network segmentation policy.

                             

                            This example shows how to migrate networks to the non default segmentation policy:

                            switch(config)# show network-segment network 

network dvs.VCDVStenantid_vlan-74e36255-e588-4357-8abe-15d2cc7feaec
tenant id: da5c49a8-dd1b-4326-9da0-3c5e6a2c1b87
network-segment policy: default_segmentation_template
segment id: 4107
multicast ip: 225.0.0.1

switch(config)# network-segment policy migrate id da5c49a8-dd1b-4326-9da0-3c5e6a2c1b87 
type segmentation dest-policy org_seg
switch(config)#

                            Note

                            In case a warning appears then, first manually remove the inheritance of the port profile associated with the network segmentation policy from the network. Then, manually inherit the new port profile that will be associated with the network segmentation policy on the network. See the Cisco Nexus 1000V Port Profile Configuration Guide for more information. 

                            switch(config)# show network-segment network 

network dvs.VCDVStenantid_vlan-74e36255-e588-4357-8abe-15d2cc7feaec
tenant id: da5c49a8-dd1b-4326-9da0-3c5e6a2c1b87
network-segment policy: org_seg
segment id: 4107
multicast ip: 225.0.0.1
switch(config)#

                            Feature History for Network Segmentation Manager

                            This table includes only the updates for those releases that have resulted in additions or changes to the feature.

                            Feature Name Release Feature Information

                            Network Segmentation Manager

                            4.2(1)SV1(5.1)

                            Introduced the Network Segmentation Manager (NSM) feature.