New and Changed Information
The following table provides an overview of the significant changes up to this current release. The table does not provide an exhaustive list of all changes or of the new features up to this release.
Release Version | Feature | Description |
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NDFC release 12.2.1 |
Support AAA remote authentication passthrough |
With this feature enabled, when you log on to NDFC, NDFC copies the default user login credentials to the LAN switch settings in Admin > Switch Credentials > LAN Credentials Management > Default Credentials. When you log on to NDFC for the first time, you are no longer prompted to enter the LAN switch credentials, as NDFC automatically copies the user login credentials to the LAN switch credentials. You can still set per device login credentials to handle devices not using authentication, authorization, and accounting (AAA). Configure AAA remote authentication passthrough by navigating to Admin > System Settings > LAN-Fabric and checking the checkbox for the Enable AAA Passthrough feature. For more information, see Server Settings. |
Overview
The following topics give overview information on the Nexus Dashboard Fabric Controller.
Know your Web UI
When you launch the Cisco Nexus Dashboard Fabric Controller Web UI for the first time, the Feature Management page opens. After you choose a deployment type, the left pane displays menus relevant to the personality.
The top pane displays the following UI elements:
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Home icon - Click to view One view on the Nexus Dashboard setup.
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Nexus Dashboard - Click to view One view on the Nexus Dashboard setup.
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Help - Click on Help to see a drop-down list with the following options:
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About Nexus Dashboard - Displays the version of the Cisco Nexus Dashboard on which Cisco Nexus Dashboard Fabric Controller is deployed.
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Welcome Screen - Displays What’s New information. You can choose to see this page every time you launch the Web UI.
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Help Center - Click to view the Help Center page. You can access various product documents from this page.
Scroll to the end of the page to view the services installed on Nexus Dashboard. Click on the Service to view Help Center.
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User Role - Displays the role of the user who is currently logged in, for example, admin. Click on the username to see a drop-down list with the following options:
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User Preferences - Allows you to view the Welcome screen on every login.
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Change Password - Allows you to change the password for the current logged-in user.
If you are a network administrator user, you can modify the passwords of other users.
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Logout - Allows you to terminate the Web UI and return to the login screen.
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Cisco Persona - Specifies the deployment persona - Fabric Controller or SAN Controller or Fabric discovery.
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View Alarms - Click the bell icon to view the Alarms. You can also view this page from Analyze > Event Analytics > Alarms from the left pane.
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Help icon - Click to view help pages or information about Cisco NDFC.
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Select Help to view the context-sensitive help for the UI page.
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Select About NDFC to view the version number and copyright information.
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General icons on UI:
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Hamburger icon - Click on a Hamburger icon adjacent to the product name on the home screen to minimize the menu items on the home screen or to view menu items in details.
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Refresh icon - Click the refresh icon to refresh and reload the page.
Dashboard
The intent of the Dashboard is to enable network and storage administrators to focus on particular areas of concern around the health and performance of data center switching. This information is provided as 24-hour snapshots.
The functional view of LAN switching consists of seven dynamic dashlets that display information in the context of the selected scope by default.
The various scopes that are available on the Cisco Nexus Dashboard Fabric Controller Web UI are described in the following topics.
Overview
From the left menu bar, choose Dashboard > Overview. The Overview window displays the default dashlets. The dashlets display donuts summary.
The following are the default dashlets that appear in the Overview dashboard window:
Dashlet |
Description |
Fabric Health |
Displays the fabric health summary of problems, and number in the donut depicting total number of fabrics. Displays fabric health status with Critical, and Healthy. The Fabric Health status is based on the severity of the highest outstanding alarm for the fabric or its member switches. |
Events Analytics |
Displays events with Critical, Error, and Warning severity. |
Switches Configuration |
Displays the switches inventory summary information such as the switch models and the corresponding count. |
Switches |
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Switch Health |
Displays the switches health summary Critical, and Healthy with the corresponding count. The Switch Health status is based on the severity of the highest outstanding alarm for the switch or its interfaces. |
Switch Roles |
Displays the switches roles summary and the corresponding count. Displays the number of access, spine and leaf devices. |
Switch Hardware Version |
Displays the switches models and the corresponding count. |
Switch Software Version |
Displays the switches software version and the corresponding count. |
Performance Collector |
Displays the performance collections on the switch. |
Reports |
Displays switch reports. |
Viewing vCenter VMs
vCenter VMs UI Path: Dashboard > vCenter VMs
You can view the Virtual Machine details for the added vCenter cluster in the dashboard and topology window by navigating to Dashboard > vCenter VMs.
The vCenter VMs tab displays the following details of VMs:
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VM Name, its IP address and MAC address
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Name of the compute where the VM is hosted
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Switch name that is connected to a VM, switch’s IP address, MAC address, and interface
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Port channel ID and vPC ID (if connected to a VPC)
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VLAN VM configured on
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Power state of the VM
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Physical NIC of the Compute host
You can search and filter VMs by using the Filter by attributes search field.
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To view VMs in the Fabric window, navigate to LAN > Fabrics, then double-click on the required fabric. In the Fabric Overview window, choose Virtual Infrastructure > Virtual Machine VMs.
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To view VMs in the Switch window, navigate to LAN > Switches, then double-click on the required switch. In the Switch Overview window, choose Virtual Infrastructure > Virtual Machine VMs.
Viewing Kubernetes Pods
Kubernetes Pods UI Path: Dashboard > Kubernetes Pods
You can view Kubernetes pods on Fabrics window, navigate LAN > Fabrics, double-click on required fabric, it navigates to Fabric Overview window, click Virtual Infrastructure > Kubernetes Pods.
You can view Kubernetes pods on Switch window, navigate LAN > Switches, double-click on required switch, it navigates to Switch Overview window, click Virtual Infrastructure > Kubernetes Pods.
You can search and filter kubernetes pods by using filter by attributes search field.
![452273.jpg](/c/dam/en/us/td/i/500001-600000/500001-510000/adoc-ndfc/452273.jpg)
The following table describes the fields and description on the window.
Field | Description |
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Pod Name |
Specifies the name of the Kubernetes pod. |
Pod IP |
Displays the IP address of the Kubernetes pod. |
Phase |
Specifies the phase (state) of the pod. |
Reason |
Specifies the reason. |
Applications |
Specifies the applications of the pod. |
Namespace |
Specifies the namespace of the pod. |
Node Name |
Specifies the node name of the pod. |
Node IP |
Specifies the node IP address. |
Cluster Type |
Displays the type of cluster. |
Physical NIC |
Displays the physical NIC of the node. |
Physical Switch |
Specifies the physical switch connected to cluster node. |
Switch Interface |
Specifies the switch interface connected to cluster node. |
Cluster Name |
Specifies the name of the cluster. |
Port Channel |
Specifies the port channel (if cluster node is connected to a VPC). |
VLAN |
Specifies the VLAN. |
Fabric |
Specifies the fabric name. |
Endpoint Locator Dashboard
To explore endpoint locator details from the Cisco Nexus Dashboard Fabric Controller Web UI, choose Dashboard > Endpoint Locator. The Endpoint Locator dashboard is displayed.
![452266.jpg](/c/dam/en/us/td/i/500001-600000/500001-510000/adoc-ndfc/452266.jpg)
Due to an increase in scale, the system may take some time to collect endpoint data and display it on the dashboard. On bulk addition or removal of endpoints, the endpoint information displayed on the EPL dashboard takes a few minutes to refresh and display the latest endpoint data.
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You can initiate a search by using the available options in the filter by attributes search bar field.
You can also filter and view the endpoint locator details for a specific Switch, VRF, Network, and Type by using the respective drop-down lists. You can select MAC type of endpoints as a filter attribute. The name of the network is also displayed in the Network drop-down list. By default, the selected option is All for these fields. You can display endpoint data for a specific device by entering the host IP address, MAC address, or the name of the virtual machine in the Search Host IP/MAC/VM Name field.
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You can click All fabrics drop-down list to view endpoint locator details for all fabrics or required fabric.
An alarm is generated if there are any endpoint related anomalies. Click the Pause icon to temporarily stop the near real-time collection and display of data. By default Run is chosen. Click Notification icon to view the notification details.
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Click Actions > Endpoint Search. For more information, refer to Endpoint Search.
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Click Actions > Endpoint Life. For more information, refer to Endpoint Life.
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Click Actions Resync to syncing to the data currently in the Route Reflector (RR). However, historical data is preserved. We recommend not clicking Resync multiple times as this is a compute-intense activity.
In certain scenarios, the datapoint database may go out-of-sync and information, such as the number of endpoints, is not displayed correctly due to network issues such as:
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Endpoint moves under the same switch between ports and the port information needs some time to be updated.
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An orphan endpoint is attached to the second VPC switch and is no longer an orphan endpoint.
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NX-API not enabled initially and then enabled at a later point in time.
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NX-API failing initially due to misconfiguration.
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Change in Route Reflector (RR).
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Management IPs of the switches are updated.
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Click Notifications icon to display a list of the most recent notifications.
The Endpoint Locator Notifications window appears.
Information such as the time at which the notification was generated, the description of the notification, severity level is displayed.
Notifications are generated for events such as duplicate IP addresses, duplicate MAC-Only addresses, VRF disappears from a fabric, all endpoints disappear from a switch, endpoint moves, endpoints on a fabric going to zero, when endpoints are attached to a switch, when a new VRF is detected, and when the RR BGP connectivity status changes. The RR connected status indicates that the Nexus Dashboard Fabric Controller can connect to the RR through BGP (Nexus Dashboard Fabric Controller and RR are BGP neighbors). The RR disconnected status indicates that the RR is disconnected and the underlying BGP is not functioning.
You can initiate a search by using the available options in the filter by attributes search bar field.
The top pane of the window displays the following information:
The top pane of the window displays the number of active endpoints, active VRFs, active networks, dual attached endpoints, single attached endpoints and dual stacked endpoints, for the selected scope. Support for displaying the number of dual attached endpoints, single attached endpoints and dual stacked endpoints has been added. A dual attached endpoint is an endpoint that is behind at least two switches. A dual stacked endpoint is an endpoint that has at least one IPv4 address and one IPv6 address.
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Historical analysis of data is performed and a statement mentioning if any deviation has occurred or not over the previous day is displayed at the bottom of each tile.
Click any tile in the top pane of the EPL dashboard to go to the Endpoint History window.
The 'middle pane' of the window displays the following information:
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Top 10 Networks by Endpoints - A pie chart is displayed depicting the top ten networks that have the most number of endpoints. Hover over the pie chart to display more information. Click on the required section to view the number of IPv4, IPv6, and MAC addresses.
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Top 10 Switches by Endpoints - A pie chart is displayed depicting the top ten switches that are connected to the most number of endpoints. Hover over the pie chart to display more information. Click on the required section to view the number of IPv4, IPv6, and MAC addresses.
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Top Switches by Networks - Bar graphs are displayed depicting the number of switches that are associated with a particular network. For example, if a vPC pair of switches is associated with a network, the number of switches associated with the network is 2.
The 'bottom pane' of the window displays the list of active endpoints.
If a virtual machine has been configured, the name of the VM is displayed in the Node Name field. Note that it can take up to 15 minutes for the name of the VM to be reflected in the EPL dashboard. Until then, the EPL dashboard displays No DATA in the Node Name field.
Click Export to download the list of active endpoints in .csv format.
Click on required endpoint identifier, a slide-in pane appears and the related details are displayed. Click Endpoint Life. The Endpoint Life window appears for selected endpoint identifier. For more information, refer to Endpoint Life.
![452267.jpg](/c/dam/en/us/td/i/500001-600000/500001-510000/adoc-ndfc/452267.jpg)
Click the search icon in the Endpoint Identifier column to search for specific IP addresses.
Consider a scenario in which EPL is first enabled and the Process MAC-Only Advertisements checkbox is selected. Then, EPL is disabled and enabled again without selecting the Process MAC-Only Advertisements checkbox. As the cache data in elasticsearch is not deleted on disabling of EPL, the MAC endpoint information is still displayed in the EPL dashboard. The same behavior is observed when a Route-Reflector is disconnected. Depending on the scale, the endpoints are deleted from the EPL dashboard after some time. In certain cases, it may take up to 30 minutes to remove the older MAC-only endpoints. However, to display the latest endpoint data, you can click Resync.
Endpoint History
Click any tile in the top pane of the EPL dashboard to go to the Endpoint History window. A graph depicting the number of active endpoints, VRFs and networks, dual attached endpoints and dual stacked MAC endpoints at various points in time is displayed. The graphs that are displayed here depict all the endpoints and not only the endpoints that are present in the selected fabric. Endpoint history information is available for the last 30 days amounting to a maximum of 100 GB storage space.
Hover over the graph at specific points to display more information. The points in the graph are plotted at 30-minute intervals. You can also display the graph for a specific requirement by clicking the color-coded points at the bottom of each graph. For example, click on all color-coded points other than active (IPv4) in the Active Endpoints window displayed above such that only active (IPv4) is highlighted and the other points are not highlighted. In such a scenario, only the active IPv4 endpoints are displayed on the graph. You can also click on the required color-coded points at the bottom of the graph to display the graph for a specific requirement. For example, hover over active (IPv4) to display only the active IPv4 endpoints on the graph.
Click on any point in the graph to display a window that has detailed information about that point of time. For example, click on a specific point in the Active Endpoints graph to display the Endpoints window. This window has information about the endpoints along with the name of the switch and the VRF associated with the endpoint. Click Download to download the data as a CSV file.
Endpoint Search
UI Path: DashboardEndpoint > Locator.
On Endpoint Locator window, click Actions > Endpoint Search to view a real-time plot displaying endpoint events for the period specified in a date range.
You cannot change time on the clock icon. Ignore the tooltip to change the time.
The results displayed here are dependent on the fields listed under Selected fields located in the menu on the left. You can add any field listed under Available fields to Selected fields to initiate a search using the required fields.
Endpoint Life
Click Actions > Endpoint Life to display a time line of a particular endpoint in its entire existence within the fabric.
Specify the IP or MAC address of an endpoint and the VXLAN Network Identifier (VNI) to display the list of switches that an endpoint was present under, including the associated start and end dates. Click Submit.
Initiate a search by using an IPv4 or IPv6 address to display the Endpoint Life graph for IPv4/IPv6 endpoints. Initiate a search by using a MAC address to display the Endpoint Life graph for MAC-Only endpoints.
The window that is displayed is essentially the endpoint life of a specific endpoint. The bar that is orange in color represents the active endpoint on that switch. If the endpoint is viewed as active by the network, it will have a band here. If an endpoint is dual-homed, then there will be two horizontal bands reporting the endpoint existence, one band for each switch (typically the vPC pair of switches). In case the endpoints are deleted or moved, you can also see the historical endpoint deletions and moves on this window.
Topology
UI Navigation - Click Topology.
The Topology window displays color-encoded nodes and links that correspond to various network elements, including switches, links, fabric extenders, port-channel configurations, virtual port-channels, and more. Use this window to perform the following tasks:
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To view more information about each of these elements, hover your cursor over the corresponding element.
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To view your navigation in the topology, view the breadcrumb at the top.
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When you click the device or the element, a slide-in pane appears from the right that displays more information about the device or the element. To view more information in the topology, double-click a node to open the node topology. For example, to view the fabric topology and its components in the Topology window, double-click the fabric node and then double-click an element that you want to view such as a host, a multicast group or a multicast flow, as applicable to the fabric type, and view the respective topology.
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If you want to view the fabric summary for the fabrics, click the fabric node. From the Fabric Summary slide-in pane, open the Fabric Overview window. Alternatively, you can right-click a fabric and choose Detailed View to open the Fabric Overview window. For more information about the fabric overview window, see About Fabric Overview for LAN Operational Mode Setups.
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Similarly, you can click on a switch to display the configured switch name, IP address, switch model, and other summary information such as status, serial number, health, last-polled CPU utilization, and last-polled memory utilization in the Switch slide-in pane. To view more information, click the Launch icon to open the Switch Overview window. For more information about the switch overview window, see About Switch Overview for LAN Operational Mode Setups.
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Choose an action from the Actions drop-down list to perform various actions based on the element you select in the topology.
For example, when you open the data center topology view, the only action available in the actions drop-down list is Add Fabric. However, when you open the fabric topology view, many more options are available in the drop-down list. For example, for LAN fabrics, the available actions are Detailed View, Edit Fabric, Add Switches, Recalculate Config, Preview Config, Deploy Config, Add Link, Deployment Disable, Backup Fabric, Restore Fabric, VXLAN OAM, and Delete Fabric.. Note that for IPFM fabrics, the available actions are Detailed View, Edit Fabric, Add Switches, Recalculate Config, Preview Config, Deploy Config, and Delete Fabric.
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To perform actions on the elements in the topology, other than the ones listed in the actions drop-down list, right-click the element. This opens the appropriate windows and allows you to perform tasks based on the elements. For example, if you right-click a fabric, you can perform tasks such as various configurations, delete the fabric, backup and restore, and many more.
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The VXLAN OAM option appears in the Actions drop-down list only for VXLAN Fabric, eBGP VXLAN Fabric, External, and Lan Classic fabric technologies, which support VXLAN OAM. For more instructions, see Configuring VXLAN OAM.
The IPFM fabric topology is specific to the operations performed by Nexus Dashboard Fabric Controller IP for Media Fabric (IPFM) and applicable for both the IPFM and Generic Multicast modes .
In a flow topology that involves the Ingress and Egress nodes, the arrows in the node icon indicate the direction of the flow from the Ingress node or sender (indicated by (S)) to the Egress node or receiver (indicated by ®).
Searching Topology
Use a combination of search attributes and search criteria in the search bar for an effective search. As you enter a combination of search attribute and search criteria in the search bar, the corresponding devices are highlighted in the topology.
You can apply the search criteria such as equals (=), does not equal (!=), contains (contains), and does not contain (!contains).
The search attributes that you can use for LAN fabrics are ASN, Fabric Type, Fabric Name, and Fabric technology. The fabric type attributes that you can use for search include switch fabric, multi-fabric domain, external, and LAN monitor. The fabric technology attributes that you can use for search include fabricpath fabric, VXLAN fabric, VLAN fabric, external, LAN classic, IPFM classic, IPFM fabric, switch group, multi-fabric domain, eBGP VXLAN fabric, eBGP routed fabric, MSO site group, meta fabric, LAN monitor fabric, and IOS-XE VXLAN fabric.
For IPFM fabrics, the following fields are available to search on: switch or hostname, switch or host IP address, switch MAC, and switch serial number. In the Generic Multicast mode, also, you can search the receiver-interface name or IP addresses in this window.
When a device is displayed on the topology, double-click it to navigate further into the topology. For example, when the fabric that you searched is displayed on the topology, double-click on the fabric (cloud icon) to navigate inside its topology. Furthermore, after the fabric is displayed on the topology, you can continue to search based on a combination of a criteria and various search attributes such as VPC peer, IP address, model, mode, switch, switch role, discovery status, software version, up time, and serial.
Certain levels of the topology allow filters only, that is, filters take the place of Search. The topology listing for these levels display a limited number of entities. For example, Easy Fabric Networks are limited to 50 networks shown. Filters must be used to see additional elements or entities.
Viewing Topology
To pan, click and hold anywhere in the whitespace and drag the cursor up, down, left, or right. To drag switches, click, hold, and move the cursor around the whitespace region of the topology.
In case of multiple selection of switch, you must release the modifier keys (cmd/ctrl) before releasing mouse drag to end the switch selection.
You can view the following information of the devices and links in the View pane:
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Layout options - You can zoom in, zoom out, or adjust the layout to fit the screen. You can also refresh the topology or save any changes to the topology. For more information, see Zooming/Panning/Dragging.
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Logical Links - For LAN topologies, you can view the logical links by double-clicking the fabric and using the Show Logical Links toggle switch.
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Operation/Configuration - For LAN topologies, you can also select operation or configuration.
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Select Layout drop-down list - Choose the layout for your topology from this drop-down list, and click Save Topology Layout in the layout options. For more information, see Layouts.
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Status - The status of every device or link is represented by different colors. You can view the configurational status and operational status as well for LAN topologies. For more information, see Status.
Topology for a node is displayed at multiple scope. Each scope is shown in the hierarchical order. The scope hierarchy is shown as breadcrumbs and can be navigated to required scope. Scopes are as follows:
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Data Center
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Cluster (vCenter)
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Resource List (DVS, Compute, and VM)
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Resource
In the Topology window, FEX appears in gray (Unknown or NA) because Operation and Configuration status is not calculated for FEX.
After moving a cable from one port to another port, the old fabric link is retained in the Topology window, and it is shown in the red color indicating that the link is down. Right-click on the link and delete it if the removal was intentional. A manual Rediscover of the switch will also delete and re-learn all links to that switch.
When a Multi-Site Domain (MSD) fabric is deployed with the child fabrics, to view multi-site topology, double-click on a fabric node, and then choose MSD scope or double click on the gray MSD node to view the MSD topology.
Viewing vCenter Visualization
In a virtualized environment, troubleshooting is intiated with identifying network attachment point for Virtual Machines (VMs). This process discovers critical details such as server, virtual switch, port group, VLAN, associated network switch, and physical port. These requires multiple touch points and communication between server, network administrator and other applications like compute orchestrator, compute manager, network manager, network controller.
Click on the vCenter visualization node, a slide-in panel appears, click on Launch icon to view vCenter Overview window.
This window has summarized data such as vCenter IP address, status of vCenter, fabric associated with the cluster, Switch name, Switch IP, Switch Port, VPC ID, Compute Node and Physical NIC.
Double-click on the vCenter cluster node to view the associated vCenter cluster resources such as Compute, DVS, VMs. Each node has a number displayed in brackets, which indicates the number of specific nodes in the vCenter instance.
Double-click on Compute, or DVS, or VMs to view required list of resource type and its topology.
When you double-click on DVS, it displays the associated compute hosts under the DVS.
Click on a node, a slide-in panel appears, click on Launch icon to view Compute Overview window.
You can view the Compute information and Network details tabs which displays information such as power state, memory size, IP address, MAC address associated with the node.
You can search using Search by Attributes to search required node. Double-click on the specific node to view the complete topology of vCenter node.
Resync vCenter
Resync synchronizes the state of all on board vCenter clusters. To resynchronize vCenter clusters, right-click on topology window, choose Resync vCenters and click Confirm. To synchronize individual vCenter cluster, choose the Rediscover flow.
The following are the guidelines for resync functionality on vCenter clusters to perform accurately:
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Make sure that the appropriate fabric switches are discovered and fabric topology is displayed, before onboarding the vCenter cluster. If vCenter clusters are onboarded while fabric discovery is in progress, you must resync all the vCenter clusters. Else, vCenter topology navigation fails.
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Ensure that you resync vCenter clusters after you use backup/restore, or upgrade function on NDFC. You must resync vCenter after successful fabric discovery.
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If you add or delete a compute node to a VM-based Kubernetes cluster, you must resync Kubernetes cluster and then resync vCenter clusters.
You can set periodic resynchronization for vCenter. On NDFC UI, navigate to the Admin > System Settings > Server Settings > VMM tab, enter time value in Background Resync Timer in minutes field. By default, the value is set to 60 minutes, you can increase the time value. If you set value less than the default timer, periodic resync feature will be disabled.
Viewing Kubernetes Cluster
You can view topology in multiple scope, each scope is displayed in the hierarchical order and navigation breadcrumb. These scopes are:
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Data Center, Cluster (Kubernetes)
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Resource List (Compute, and Pod)
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Resource (Compute and Pod)
Kubernetes Clusters are of two types:
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VM based Kubernetes clusters are hosted on the VMs managed by the vCenter.
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Kubernetes installed on Bare metal, which is directly connected to a Switch.
Click on the Kubernetes cluster node, a slide-in panel appears, click on Launch icon to view Kubernetes Overview window.
This window has summarized data such as vCenter IP address, status of vCenter, fabric associated with the cluster, Switch name, Switch IP, Switch Port, VPC ID, Compute Node and Physical NIC.
Double-click on the Kubernetes cluster node to view the associated Kubernetes cluster resources such as Computes and Pods. Each node as a number displayed in brackets, which indicates the number of specific nodes in the Kubernetes cluster.
Double-click on appropriate resource (computes or pods) group to display the list of computes and the pods in the Kubernetes cluster. You can search the specific node using Filter by Attributes.
Click on the Nodes to view details about the node. A side panel appears, showing the Node Summary. Click Launch icon to view Meta Data, Specifications, and Status information for the selected node.
Meta data tab consists of Kubernetes node or Pod name. Specification tabs include the desired design or configuration of the node or the Pod. Status tab indicates the running state information of the node or the pod.
Click on Compute or Pod to view specific compute or pod node details. You can search using Filter by Attributes to search required node.
Double-click on the specific node to view the complete topology of vCenter node.
Click on a cluster node, a slide-in panel appears, click on Launch icon to view Kubernetes Cluster Node Overview window. To view the Compute information and Network details tabs.
Click on the pod node, a slide-in panel appears. Click on Launch icon to view the Kubernetes Pod Overview window.
Compute Information - Displays connectivity status, Power state, vCenter IP, Model and Version.
Network Details - Displays tabular information such as Physical NICs, Virtual Switches, Virtual Switch Port Groups, Distributed Virtual Switches, Distributed Virtual Switch Port Groups.
Resync Kubernetes Clusters
To resynchronize kubernetes clusters, right-click on topology window, click Resync Kubernetes Clusters and click Confirm.
Resync synchronizes the state of all onboarded Kubernetes clusters.
![452334.jpg](/c/dam/en/us/td/i/500001-600000/500001-510000/adoc-ndfc/452334.jpg)
Viewing OpenStack Cluster
Topology for a node is displayed at multiple scope. Each scope is shown in the hierarchical order. The scope hierarchy is shown as breadcrumbs and can be navigated to required scope. Scopes are as follows:
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Data Center
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Cluster (Openstack)
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Resource List (Compute, and VM)
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Cluster
Click on the Openstack cluster node, a slide-in panel appears, click on Launch icon to view Openstack cluster window.
This window has summarized data such as Openstack cluster IP address, status of vCenter, fabric associated with the cluster, Switch name, Switch IP, Switch Port, VPC ID, Compute Node and Physical NIC.
Double-click Openstack cluster node, to view associated VMs and compute nodes. Each node has a number displayed in brackets, which indicates the number of specific nodes in the vCenter instance.
Double-click on Compute or VM group icon to view list of specific compute or VMs in the cluster.
You can search using Filter by Attributes to search required node.
Double-click on the specific node to view the complete topology of Openstack cluster node.
IPFM - Multicast Flow
Generic Multicast is not limited to the two-tier spine or leaf topology. The flow classification and path tracing are not limited to any specific topology if all the involved switches are Cisco Nexus 9000 Series switches with the Cisco NX-OS Release 9.3(5). Generic Multicast is supported for the default VRF.
If you remove a device from the Inventory, the Policy deployment status for that switch is removed. However, clear the policy configuration on the switch also.
To enable prefix for multicast, perform the following steps:
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From Nexus Dashboard Fabric Controller Web UI, choose Admin > System Settings > Server Settings.
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Click the IPFM tab, and check the check box Enable mask/prefix for the multicast range in Host Policy.
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Click Save.
To view the multicast flows topology, perform the following steps:
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Double-click the IPFM fabric in the Topology window.
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Double-click the Multicast Flows node.
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Double-click the required Multicast Flow.
The multicast flow topology is displayed.
A multicast flow topology involves spine, leaf, and sender and receiver hosts. The dotted moving lines depict the flow of traffic in the IPFM fabric topology. The arrows in the icon indicate the direction of the flow, and the IP address suffixed with (S) and ® indicate the sender and receiver host respectively.
Zooming/Panning/Dragging
You can zoom in and zoom out using the controls that are provided at the bottom left of the windows or by using your mouse’s wheel.
To pan, click and hold anywhere in the whitespace and drag the cursor up, down, left, or right.
To drag switches, click, hold, and move the cursor around the whitespace region of the topology.
Layouts
The topology supports different layouts along with a Save Layout option that remembers how you positioned your topology.
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Hierarchical and Hierarchical Left-Right - Provide an architectural view of your topology. Various switch roles can be defined that will draw the nodes on how you configure your CLOS topology.
When running a large-scale setup, being able to easily view all your switches on a leaf-tier can become difficult. To mitigate this, Nexus Dashboard Fabric Controller splits your leaf-tier every 16 switches.
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Circular and Tiered-Circular - Draw nodes in a circular or concentric circular pattern.
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Random - Nodes are placed randomly on the window. Nexus Dashboard Fabric Controller tries to make a guess and intelligently place nodes that belong together in close proximity.
-
Custom saved layout - Nodes can be dragged around according to your preference. After you position as required, click Save to retain the positions. The next time you come to the topology, Nexus Dashboard Fabric Controller will draw the nodes based on your last saved layout positions.
Before a layout is chosen, Nexus Dashboard Fabric Controller checks if a custom layout is applied. If a custom layout is applied, Nexus Dashboard Fabric Controller uses it. If a custom layout is not applied, Nexus Dashboard Fabric Controller checks if switches exist at different tiers, and chooses the Hierarchical layout or the Hierarchical Left-Right layout. Force-directed layout is chosen if all the other layouts fail.
Status
The color coding of each node and link corresponds to its state. The operational colors and what they indicate are described in the following list:
-
Green - Indicates that the element is in good health and functioning as intended.
-
Blue - Indicates that the element is in a warning state and requires attention to prevent any further problems.
-
Yellow - Indicates that the element has minor issues.
-
Orange - Indicates that the element has major issues and requires attention to prevent any further problems.
-
Red - Indicates that the element is in critical state and requires immediate attention.
-
Gray: Indicates lack of information to identify the element or the element has been discovered.
The configurational colors and what they indicate are described in the following list:
-
Green - Indicates that the element is element is In-Sync with the intended configuration.
-
Blue - Indicates that the element has pending deployments.
-
Yellow - Indicates that active deployments are in-progress.
-
Red - Indicates that the element is Out-of-Sync with the intended configuration.
-
Gray: Indicates lack of information or no support for Configuration Sync calculation.
In the Topology window, FEX appears in gray (Unknown or n/a) because Operation and Configuration status is not calculated for FEX.
After moving a cable from one port to another port, the old fabric link is retained in the Topology window, and it is shown in the red color indicating that the link is down. Right-click on the link and delete it if the removal was intentional. A manual Rediscover of the switch will also delete and re-learn all links to that switch.
Initial Setup
The following topics provide initial setup information for the LAN operational mode in the Cisco Nexus Dashboard Fabric Controller.
Server Settings
The following topics provide initial setup information for the LAN operational mode in the Cisco Nexus Dashboard Fabric Controller.
Server Settings
You can set the parameters that are populated as default values.
To set the parameters of the Nexus Dashboard Fabric Controller server from the Cisco Nexus Dashboard Fabric Controller Web UI, perform the following steps:
-
Navigate to the Admin > System Settings page.
-
Click on the Server Settings tab.
NDFC classifies server settings by different tabs.
-
Modify the settings on any of the tabs in Server Settings based on your requirements.
-
Click Save to apply the settings.
Each microservice of an enabled feature has additional tabs and properties other than those listed below.
Each field has a short description. If there is an error when configuring any of the features in Server Settings, the corresponding tab displays in red. The Save button is disabled until you resolve those errors.
NDFC services perform comprehensive checks on the NDFC server. If there are any errors, those errors are displayed on the NDFC UI.
-
You can modify the properties in Server Settings without the support of Cisco TAC.
-
If the Nexus Dashboard is rebooted, NDFC services are down for a period of time.
Enable AAA Passthrough Feature
This feature is available in NDFC release 12.2.1. In the LAN-Fabric area in Server Settings, check the checkbox for the Enable AAA Passthrough feature to enable the authentication, authorization, and accounting (AAA) passthrough feature. When enabled, the AAA passthrough feature allows NDFC to automatically copy the NDFC user login credentials to the LAN switch credentials settings for that user. When a local user logs in, that user can set the default credentials. The local user workflow remains intact even after the local user enables the AAA passthrough feature.
NDFC maintains the LAN switch credentials settings in Admin > Switch Credentials > LAN Credentials Management > Default Credentials. When the user logs in to NDFC for the first time, NDFC does not display the message to enter the LAN switch credentials, as NDFC automatically copies the NDFC user login information to the LAN switch credentials.
You can still set per device login credentials to handle devices not using AAA. The default setting is disabled (check box is unchecked).
LAN Device Management Connectivity under Admin
You can change persistent IP addresses that are assigned for mandatory pods such as POAP-SCP and SNMP trap.
This setting determines the Persistent IPs usage for the PODs required for Nexus Dashboard Fabric Controller. When you select the Fabric Controller persona for the first time, there is a pre-check to determine if Persistent IPs are allocated on Nexus Dashboard. If Persistent IPs are not allocated, then you will see an error.
You can provide Persistent IPs in either the management network or the data network in Nexus Dashboard. Based on this selection, you must specify the option under LAN Device Management Connectivity, which can be found under Server Settings in the NDFC application page. By default, management is selected, but if you provide Persistent IPs under the Nexus Dashboard data network, then you must select Data as the option.
When you change the LAN Device Management connectivity from management to data or vice versa, some of the devices might have a SSH Unreachable
critical error for a short time, but the connectivity will eventually be restored.
SMTP Host under SMTP
This setting is used as an email out-of-band notification for programmable reports and alarms.
You can receive NDFC alarms and reports through email notification. The SMTP Host address must be reachable through the Nexus Dashboard management interface. If the Nexus Dashboard management interface and SMTP Host are part of different IP subnets, then you must create a static route entry in the Nexus Dashboard Cluster configuration.
You can enter other texts for STMP fields. To initiate alarms to an external receiver, provide the IP address of the SNMP listener and the port that it is listening on.
Disable Deployment Across all Fabrics Under LAN Fabric
This setting disables deployments for all the fabrics that are defined in the NDFC instance. You will not be able to enable the deployment on a per fabric level. For example, if you have three fabrics, then all three fabrics will be disabled from the configuration point of view. You can continue to stage various configurations if necessary. Later, you can enable the deployment action by unchecking this server setting.
Collect Temperature for LAN Switches Under PM
This setting enables NDFC to collect switch temperate details and show it in the Fabric Overview and the Metric areas. By, the default temperature data is not collected. After you enable this setting, you can view the temperature information of the fabric switches as well.
Feature Management
In Cisco DCNM Release 11.x, you must choose the install mode while installing the DCNM. From Release 12.0.1a, Cisco Nexus Dashboard Fabric Controller allows you to install the service on the Nexus Dashboard. After you launch the Nexus Dashboard Fabric Controller UI, you will see three different Install modes on the Feature Management page.
Nexus Dashboard Fabric Controller 12 allows you to dynamically enable the feature set and scale applications. Choose Admin > System Settings > Feature Management to choose the installer type and enable or disable few features on the selected deployment.
When you launch Nexus Dashboard Fabric Controller for the first time from Cisco Nexus Dashboard, the Feature Management screen appears. You can perform only Backup and Restore operations before you choose the feature set.
On the Feature Management page, you can choose one of the following install modes:
-
Fabric Discovery
-
Fabric Controller
-
SAN Controller
After you select a Feature Set, from the next login, Dashboard page opens when you launch Cisco Nexus Dashboard Fabric Controller from Nexus Dashboard.
Choosing Feature Set
When you launch Cisco Nexus Dashboard Fabric Controller 12 for the first time, none of the feature set is enabled. During this state, you can perform Backup and Restore to restore the DCNM 11.5(x) data on Nexus Dashboard Fabric Controller 12. Nexus Dashboard Fabric Controller will read the data from the backup file and select the installer type accordingly.
To deploy feature-set from Cisco Nexus Dashboard Fabric Controller Web UI perform the following steps:
-
Choose Admin > System Settings > Feature Management.
-
Select a persona to view the default set of features.
For information about the features available in Cisco NDFC personas, see Features with each Persona.
-
In the table below, select the check box against the feature name available with the feature set.
-
Click Apply.
The feature-set will be deployed. The selected applications will be enabled. A message appears that the feature set is installed, and you must refresh to take effect.
-
Refresh the browser to deploy Nexus Dashboard Fabric Controller with the selected feature set and applications.
The left pane shows the features supported specifically with the deployed feature set.
Features with each Persona
Fabric Controller
Feature Name |
Description |
Kubernetes Visualizer |
Network Visualization of K8s Clusters |
Endpoint Locator |
Tracking Endpoint IP-MAC Location with Historical Information |
IPAM Integration |
Integration with IP Address Management (IPAM) Systems |
Openstack Visualizer |
Network Visualization of Openstack Clusters |
Performance Monitoring |
Monitor Environment and Interface Statistics |
IP Fabric for Media |
Media Controller for IP Fabrics |
PTP Monitoring |
Monitor Precision Timing Protocol (PTP) Statistics |
VMM Visualizer |
Network visualization of Virtual Machines |
Fabric Builder |
Easy Fabric Functionality for NX-OS and Other devices |
Kubernetes Visualizer
After enabling this feature, reload to view left pane Virtual Management > Virtual Infrastructure Manager. This feature allows you to visualize Kubernetes cluster as Container Orchestrator with the Cisco NDFC. See the "Kubernetes Cluster" section in Virtual Infrastructure Manager for more information.
Endpoint Locator
This feature allows real-time tracking of endpoints within a data center. The tracking includes tracing the network life history of an endpoint and getting insights into the trends that are associated with endpoint additions, removals, moves, and so on. See the "Monitoring Endpoint Locator" section in Endpoint Locator for more information.
IPAM Integration
IPAM Integrator allows read-only access to the IPAM and NDFC servers. See IPAM Integrator for more information.
Openstack Visualizer
Ensure that the vCenter cluster or Kubernetes cluster feature must be enabled to add an OpenStack cluster. See the "OpenStack Cluster" section in Virtual Infrastructure Manager
Performance Monitoring
This feature is supported for IPFM fabrics. Enabling performance monitoring will monitor the performance of fabric. See IPFM Fabrics for more information.
IP Fabric for Media
You can enable this feature to configure fabrics related to IP Fabric for Media (IPFM). See IPFM Fabrics for more information.
You can either enable Fabric builder or IP Fabric for Media feature on NDFC. Enabling both features on single NDFC is not supported, it displays error message Features Fabric Builder and IP Fabric for Media are mutually exclusive. Please select only one at a time
PTP Monitoring
PTP is a time synchronization protocol for nodes that are distributed across a network. On a local area network, it achieves clock accuracy in the sub-nanosecond range, making it suitable for measurement and control systems. See the "PTP Monitoring" section in About Switch Overview for LAN Operational Mode Setups for more information.
VMM Visualizer
Enable this feature to configure network visualization of Virtual Machines on fabrics. See Virtual Infrastructure Manager for more information.
Fabric Builder
To configure fabrics and functionalities for NX-OS and other devices, enable this feature. See Understanding LAN Fabrics for more information.
If you are using a Virtual Nexus Dashboard Cluster before you begin, ensure that the Persistent IP address and required settings are enabled.
Changing across Feature-Set
Nexus Dashboard Fabric Controller 12 allows you to switch from one feature set to another. Choose Admin > System Settings > Feature Management. Select the desired feature set and applications in the table below. Click Save & Continue. Refresh the browser to begin using Cisco Nexus Dashboard Fabric Controller with the new feature set and applications.
There are a few features/applications supported with specific deployments. When you change the feature set, some of these features are not supported in the new deployment. The following table provides details about the pre-requisites and criteria based on which you can change the feature set.
From/To |
Fabric Discovery |
Fabric Controller |
SAN Controller |
Fabric Discovery |
- |
Only monitor mode fabric is supported in Fabric Discovery deployment. When you change the feature set, the fabric can be used in the Fabric Controller deployment. |
Not supported |
Fabric Controller |
You must delete the existing fabrics before changing the fabric set. |
If you’re changing from Easy Fabric to IPFM fabric application, you must delete the exiting fabrics. |
Not supported |
SAN Controller |
Not supported |
Not supported |
- |
LAN Credentials Management
While changing the device configuration, Cisco Nexus Dashboard Fabric Controller uses the device credentials provided by you. However, if you do not provide the LAN switch credentials, Cisco Nexus Dashboard Fabric Controller prompts you to open the Admin > Switch Credentials > LAN Credentials Management page to configure the LAN credentials.
Cisco Nexus Dashboard Fabric Controller uses two sets of credentials to connect to the LAN devices:
-
Discovery Credentials
Cisco Nexus Dashboard Fabric Controller uses these credentials during discovery and periodic polling of the devices.
NDFC uses discovery credentials with SSH and SNMPv3 to discover the hardware or software inventory from the switches. You can discover one inventory per switch. These discovery credentials are read-only and you cannot make configuration changes on the switches.
-
Configuration Change Credentials
Cisco Nexus Dashboard Fabric Controller uses these credentials when a user changes the device configuration.
LAN Credentials
You can use the write option on the LAN credentials page to do configuration changes on the switch. One credential is allowed per user for a single switch. A user role must access NDFC to use the write option for the switches to push configurations on it through an SSH connection.
For a user role created on NX-OS switches, an SNMPv3 user is created with the same password. Ensure that the SSH and SNMPv3 credentials match for the discovery of the credentials. If SNMP authentication fails, discovery of credentials stops displaying an error message. If SNMP authentication succeeds and SSH authentication fails, discovery of credentials continues, and the switch status displays a warning message for the SSH error.
If the user role created on the NX-OS switches uses AAA authentication, the SNMPv3 user is not created. Using this AAA authentication to discover or import a switch in NDFC, the controller detects that the local SNMPv3 user is not created on the switch. NDFC runs the exec command on the switch to create an SNMPv3 user with the same password on the switch. The SNMPv3 user role is temporary. Once the user role expires, the continual discovery of switches from NDFC creates the SNMPv3 user.
LAN credentials management allows you to specify configuration-change credentials. Before changing any LAN switch configuration, you must enter the LAN credentials for the switch. If you do not provide the credentials, the configuration change action is rejected.
These features get the device-write credentials from the LAN credentials feature.
-
Upgrade (ISSU)
-
Maintenance mode (GIR)
-
Patch (SMU)
-
Template deployment
-
POAP-write erase reload, rollback
-
Interface creation, deletion, or configuration
-
VLAN creation, deletion, or configuration
-
VPC wizard
You must specify the configuration-change credentials irrespective of whether the devices were discovered initially or not. This is a one-time operation. After the credentials are set, the credentials are used for any configuration-change operation.
Default Credentials
You use default credentials to connect all the devices that the user has access to. You can override the default credentials by specifying credentials for each of the devices in the Devices table.
Cisco Nexus Dashboard Fabric Controller tries to use individual switch credentials in the devices, to begin with. If the credentials (username/password) columns are empty in the devices, the default credentials are used.
Switch Table
The Devices table lists all the LAN switches that the user has access to. You can specify the switch credentials individually, which will override the default credentials. In most cases, you need to provide only the default credentials.
The LAN credentials for the Nexus Dashboard Fabric Controller Devices table has the following fields.
Field |
Description |
Device Name |
Displays the switch name. |
IP Address |
Specifies the IP address of the switch. |
Credentials |
Specifies whether the default or switch-specific custom credentials are used. |
Username |
Specifies the username that Nexus Dashboard Fabric Controller uses to login. |
Fabric |
Displays the fabric to which the switch belongs. |
The following table describes the action items, in the Actions menu drop-down list, that appear on the LAN Credentials Management page.
Action Item |
Description |
Edit |
Choose a device name and click Edit. Specify a username and password. You can edit local or custom- specific credentials. |
Clear |
Choose a device name and click Clear. A confirmation dialog box appears. Click Yes to clear the switch credentials from the NDFC server. |
Validate |
Choose a device name and click Validate. A confirmation message appears, indicating if the operation was successful or a failure. |
Robot Credentials
When you specify default credentials, you can enable the robot feature, enabling the robot flag.
The robot role is similar to an earlier role in DCNM. The robot user role helps with switch and device accounting. You can track all the changes done on NDFC with a general user account. If the user role changes on NDFC that impacts the change on the device, this is termed an out-of-band change. These changes are logged on the device as the changes made by a general user account. Therefore, you can track and distinguish between out-of-band changes and changes made on the device. This general user account is termed as a robot user role for the changes logged on the device.
For example, a user role of network-admin on NDFC has access to enter LAN device credentials to push configurations on the switches. With the network-admin user role, you can check the robot flag while creating the LAN credentials.
The username for the LAN credentials is displayed as a change logged on the device. If a username for the LAN credentials is changed to a controller and the robot flag is checked, the credentials for the device changes from default to robot. This user role pushes configurations on the switches in NDFC. These changes are logged in the History tab of the fabric as the changes made by the network-admin user role. The account log on the switch displays as the controller. The appropriate user-role details are logged on NDFC and the device.
In NDFC, the robot user role is considered the admin role for all the fabrics and the devices. If the default credential is not set on a fabric, you can use the robot user role, if it is set for different devices. If another user role with write access logs in to NDFC, this user role is not prompted to update the credentials as the robot user role is already set. The credentials are set in the following order: individual switch, robot, and then the default credentials.
On the Admin > Switch Credentials > LAN Credentials Management page, you can choose to either use default credentials or robot credentials while changing device configurations, unless you set custom credentials.
To set the default credentials, perform the following steps:
-
Choose the required Device Name and click Set.
The Set credentials dialog box appears.
-
Enter the appropriate details.
-
Choose the Robot checkbox to set the robot credentials.
You can choose the appropriate roles to push configurations to devices without adding device credentials.
If you enable the Enable AAA Passthrough feature, you cannot set the robot flag.
-
Click Save to apply the settings.
-
On the Admin > Switch Credentials > LAN Credentials Management > Default Credentials page, choose the required Device Name and click Clear.
A confirmation message appears.
-
Click Yes to clear the default device credentials.
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The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
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