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Topology Tab in Site Dashboard
In HPE Aruba Networking Central, the tab is displayed only when you select a site from the filter. The Topology tab provides a graphical representation of the site including the network layout, details of the devices deployed, and the health of the WAN Wide Area Network. WAN is a telecommunications network or computer network that extends over a large geographical distance. uplinks and tunnels.
For APs and Gateways, the topology feature is available for both Foundation and Advanced licenses; and for switches, the feature is available for Foundation licenses.
This section includes the following topics:
Before You Begin
The following types of devices are displayed as part of the tab:
- Access Point (AP)
- Gateway
- AOS-S and AOS-CX switch
- AOS-S and AOS-CX switch stack
In the topology map, HPE Aruba Networking Central supports third-party routers, switches, gateways, and APs from the following vendors:
- Cisco
- Procurve
- Juniper
- HPE Comware
- Meraki
- Cumulus
- Huawei
- Mikrotik
- Extreme
- HPE OfficeConnect Switch
- Arista
- 3Com
- Ruckus
- Mojo
- Mist
- Motorola
- Netgear
- Dell
- Comware
- Hirschmann Railswitch
- Ubiquiti
Pre-requisites
This section discusses the pre-requisites associated with the devices so that they are displayed correctly in the tab:
- The topology map filters devices based on sites. To view the topology map, ensure that you have assigned the devices to sites.
- The minimum required AOS version for access points (APs) and gateways in the topology map is AOS version 8.1.0.0-1.0.1.1.
- To view the topology map, ensure that LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. is enabled. On switches, LLDP is enabled by default. On Branch Gateways, if the port type is LAN Local Area Network. A LAN is a network of connected devices within a distinct geographic area such as an office or a commercial establishment and share a common communications line or wireless link to a server., LLDP is enabled by default.
- To view HPE Aruba Networking CX switches in the topology map, you must create a template configuration for the switch with the password in plaintext.
- According to the current topology, there must be a one-to-one mapping between a site and a device. Topology does not currently support unmanaged devices belonging to multiple sites. All HPE Aruba Networking Central managed devices that are connected to a common unmanaged device must terminate on the same site.
- In HPE Aruba Networking Central, the maximum number of devices supported per site in the topology tab is 500.
- To identify a valid third-party device in the topology, the neighbor device must have a valid third-party vendor name in either hostname or system description for the devices on the site. Also, the enabled capability for the unmanaged neighbor device must include one of the following:
- Access Point
- Router
- Bridge
- Repeater
- Other
- Unknown but not Station or Telephone
Grouping VPNCs on the Topology Map
The guidelines for grouping VPNCs are:
- If the tunnels in the overlay are orchestrated, the VPNCs are grouped according to their hub groups. You can also see that the group preference order marked as primary, secondary, or tertiary.
- If the tunnels are configured manually, the VPNCs are grouped according to their sites. If the VPNCs are not associated with any site, they are grouped based on their hub groups. For manual tunnels, the Data Center group preference is not displayed.
- If you have a combination of gateways in a single site, with one gateway configured as a manual tunnel and the other gateway configured as an orchestrated tunnel, both the tunnels are treated as manual and the VPNCs are grouped based on their sites. If there are no associated sites, they are grouped according to their hub groups.
Do not install VPNCs with orchestrated tunnels and manual tunnels together in a single site.
Topology Map
For more information on viewing the topology map, see Viewing the Topology Map.
Features on the Topology Tab User Interface
The following figure shows the different features available on the Topology tab:
Figure 1 Features on theTopology Tab
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Callout Number |
Description |
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Click the |
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Click the |
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Click the
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Click the |
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Click the |
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The search bar allows you to locate a device in the topology map. The search bar field supports exact and partial text searches. |
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Click the |
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Click the |
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Click the |
icon to show or hide the 
toggle switch to show or hide the device name.
filter icon to filter the type of devices to be shown on the map. The following options are available:
icon to view the topology map in a left to right orientation. The default orientation of the topology map is the left to right orientation.
icon to view the topology map.
icon to reset the topology map to the default view.
or 
icons to change the zoom level of the topology map. Alternatively, you can drag the slider to set the zoom level of the topology map.
icon to view the topology map in full-screen view. In the full-screen view, the device or link details feature is disabled in the topology map.When the number of downstream devices connected to a device is less than or equal to 10, the devices are visible in the topology map. When the number of downstream devices connected to a device is more than 10, click the device icon to view the devices in the topology map. A bubble icon on the device represents the number of connected downstream devices.
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Icon |
Type |
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AP |
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Branch Gateway |
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Switch |
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Switch Stack |
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Unmanaged Device |
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Uplink |
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VPNC |
Icon Status
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—Indicates that the device health is poor when the CPU Central Processing Unit. A CPU is an electronic circuitry in a computer for processing instructions. usage is greater than 90% and the memory usage is greater than 90%. -
—Indicates that the device health is good when the CPU usage is lower than or equal to 75% and the memory usage is lower than or equal to 75%. -
—Indicates that the device health is fair when the CPU usage is greater than 75% and the memory usage is greater than 75%. -
—Indicates that the device is online. -
—Indicates that the device is offline.
Device or Link Details
When you hover over a device or link, a pop-up displays the following details:
Figure 2 Device or Link Details
- Access Point—Displays the following details:
- —Hostname of the AP.
- —Type of the device.
- —Hardware model of the AP.
- —Click the link to view the pane.
- Branch Gateway—Displays the following details:
- —Hostname of the Branch Gateway.
- —Type of device deployment.
- —Hardware model of the device.
- —Number of devices connected to the Branch Gateway, categorized based on the health and status of the devices. The field displays the following details:
- —Count of devices connected to the Branch Gateway based on the health of the device. For more information, see Icon Status.
- —Count of devices connected to the Branch Gateway based on the status of the devices. The arrow in green indicates that the device is online. The arrow in red indicates that the device is offline.
- —Click the link to view the pane.
- VPNC—Displays the following details:
- —Hostname of the VPNC.
- —Type of device deployment.
- —Hardware model of the device.
- —Click the link to view the pane.
- Unmanaged—Displays the following details:
- —Name of the unmanaged device.
- —IP address of the unmanaged device.
- —Click the link to view the pane.
The value of the parameter is empty if LLDP does not provide the neighbor information.
- Switch—Displays the following details:
- —Hostname of the switch.
- —Type of the device.
- —Hardware model of the switch.
- —Number of devices connected to the switch categorized based on the health and status of the devices. The field displays the following details:
- —Total number of devices connected to the switch based on the health of the device. For more information, see Icon Status.
- —Total number of devices connected to the switch based on the status of the devices. The arrow in green indicates that the device is online. The arrow in red indicates that the device is offline.
- VLANs Virtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN.—List of VLANs configured on the switch. This field is displayed only when the VLANs option is selected under Overlays. For more information, see VLAN Overlay Details.
- —Click the link to view the pane.
- Switch Stack—Displays the following details:
- —Hostname of the switch stack.
- —Type of the device.
- —Hardware model of the switch.
- —Number of devices connected to the switch categorized based on the health and status of the devices. The field displays the following details:
- —Total number of devices connected to the switch based on the health of the device. For more information, see Icon Status.
- —Total number of devices connected to the switch based on the status of the devices. The arrow in green indicates that the device is online. The arrow in red indicates that the device is offline.
- VLANs—List of VLANs configured on the switch. This field is displayed only when the VLANs option is selected under Overlays. For more information, see VLAN Overlay Details.
- —Click the link to view the pane.
- AOS-CX VSX Virtual Switching Extension. VSX is a virtualization technology for aggregation/core switches running the AOS-CX operating system. This solution lets the switches present as one virtualized switch in critical areas. Switch—Displays the following details:
- —Name of the AOS-CX switch that is configured with VSX. The name is displayed in the format. For example, . However, in the map, this name is displayed in the format. For example, .
- —Type of the device.
- —Hardware model of the AOS-CX switch.
- —Role of the AOS-CX switch in the VSX configuration. Supported values are and .
- —Number of devices connected to the switch categorized based on the health and status of the devices. The field displays the following details:
- —Total number of devices connected to the switch based on the health of the device. For more information, see Icon Status.
- —Total number of devices connected to the switch based on the status of the devices. The arrow in green indicates that the device is online. The arrow in red indicates that the device is offline.
- VLANs—List of VLANs configured on the switch. This field is displayed only when the VLANs option is selected under Overlays. For more information, see VLAN Overlay Details.
- —Click the link to view the pane.
- Tunnel—Displays the alias map name of the tunnel configured on the Branch Gateway and Access Point:
In the topology map, the tunnels are shown as dotted lines. The tunnel in green color indicates that the tunnel is up. The tunnel in red color indicates that the tunnel is down.
Click the tunnel link to view the pane.
From the HPE Aruba Networking Central 2.5.4 release onwards, the topology map supports displaying the tunnels for APs. The maximum number of tunnels supported in APs with ArubaOS 8.9.0.0 or later firmware version is 8. And the maximum number of tunnels supported is 128 tunnels for APs with ArubaOS 10.3.0.0 or later firmware version.
- Uplink—Displays the following information about uplinks configured on the Branch Gateway and Access Point:
- —Displays the name of the Branch Gateway for the gateway uplink or —Displays the name of the access point for the access point uplink.
- —Type of the uplink.
- —VLAN ID of the uplink.
- —Displays the health status of the uplink. This parameter is only available when the uplink is down. The uplink in green color indicates that the uplink is up. The uplink in red color indicates that the uplink is down.
Click the uplink to view the pane.
- For High Availability, the redundant gateway tunnel details are also displayed in the tab under when you select the uplink.
- From the HPE Aruba Networking Central 2.5.4 release onwards, the topology map supports displaying the uplink details for APs. The maximum number of uplink details supported in APs with ArubaOS 8.9.0.0 firmware version or later is 2. And the maximum number of uplink details supported is five uplink details for APs with ArubaOS 10.3.0.0 or later firmware version.
- Edge Edge is a device persona that connects endpoints to the fabric.—Displays the following information about the link:
- —Name of the device connected with the edge link.
- —Interface number of the device.
- —Displays the health status of the edge link. This parameter is only available when the edge link is down.
- —Number of the alternative links.
The edge in green color indicates that the edge is up. The edge in red color indicates that the edge is down.
Click the uplink to view the pane.
- Unmanaged edge—Displays the following information about the link:
- —Name of the device connected with the edge link.
- —Port number of the device.
- —Displays the health status of the edge link. This parameter is only available when the edge link is down.
- —Number of the alternative links.
The unmanaged edge in green color indicates that the unmanaged edge is up. The unmanaged edge in red color indicates that the unmanaged edge is down.
Click the unmanaged edge link to view the pane.
- ISL Inter-Switch Link. ISL is a layer 2 interface between two VSX peer switches. edge in AOS-CX VSX topology map—Displays the following information about the link:
- —Number of inter-switch links (ISL) present between the AOS-CX switches configured with VSX.
- —Number of other links that are present between the AOS-CX switches configured with VSX.
- —Name of the device connected with the edge link.
- —Interface name where the switches are connected to the devices.
Active tunnels are green in color and inactive tunnels are red in color. If there are multiple tunnels connecting to a VPNC, and even if one of those tunnels is down, the tunnel mapping is displayed in red dotted lines.
Details Pane
On the topology map, the pane provides details of the devices, uplinks, and tunnel details.
A green bullet icon indicates that the device health is good when the CPU usage is lower than or equal to 75% and the memory usage is less than or equal to 75%. A yellow bullet icon indicates that the device health is fair when the CPU usage is greater than 75% and the memory usage is greater than 75%. A red bullet icon indicates that the device health is poor when the CPU usage is greater than 90% and the memory usage is greater than 90%. The arrow in green indicates that the device is online. The arrow in red indicates that the device is offline.
In the topology map, select a device and then click the link in the pop-up window to view the pane. To view the pane for a tunnel, uplink, or edge, click the link.
The task pane displays the following information:
Figure 3 Details Pane
- Access Point—Displays the following details:
- —Hostname of the AP. Click the AP name to view the page.
- —IP address of the AP.
- —MAC Media Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. address of the AP.
- —Type of the device.
- —Serial number of the AP.
- —Hardware model of the AP.
- —Operational status of the AP.
- —Operational health of the AP.
- Branch Gateway—Displays the following details:
- —Hostname of the Branch Gateway. Click the Branch Gateway name to view the page.
- —IP address of the Branch Gateway.
- —MAC address of the device.
- —Type of device deployment.
- —Serial number of the Branch Gateway.
- —Hardware model of the device.
- —Operational status of the device.
- —Operational health of the device.
- VPNC—Displays the following details:
- —Hostname of the VPNC. Click the VPNC name to view the page.
- —IP address of the VPNC.
- —MAC address of the device.
- —Type of device deployment.
- —Serial number of the VPNC.
- —Hardware model of the device.
- —Operational status of the device.
- —Operational health of the device.
- Unmanaged—Displays the following details:
- —Name of the unmanaged device.
- —Description of the unmanaged device.
- —IP address of the unmanaged device.
- —Displays the capabilities of the unmanaged device.
- —Lists the supported capabilities of the unmanaged device.
- —Lists the enabled capabilities of the unmanaged device.
The values of the parameters are empty if LLDP does not provide the neighbor information.
- Switch—Displays the following details:
- —Hostname of the switch. Click the switch name to view the page.
- —IP address of the switch.
- —MAC address of the switch.
- —Type of the device.
- —Serial number of the switch.
- —Hardware model of the switch.
- —Operational status of the switch.
- —Operational health of the switch.
- Switch Stack—Displays the following details:
- —Hostname of the switch. Click the switch name to view the page.
- —IP address of the switch.
- —MAC address of the switch.
- —Type of the device.
- —Serial number of the switch.
- —Role of the switch in the stack.
- —Hardware model of the switch.
- —Operational status of the switch.
- —Operational health of the switch.
- —Provides the , , and details of the stack member. Click the stack member name to view the page.
- AOS-CX VSX—Displays the following details:
- —Hostname of the AOS-CX switch with VSX configured. Click the switch name to view the page.
- —IP address of the switch.
- —MAC address of the switch.
- —Type of the device.
- —Serial number of the switch.
- —Hardware model of the switch.
- —Operational status of the switch.
- —Operational health of the switch.
The section displays the following details:
- —State of the ISL connection with the peer AOS-CX switch. Following are the supported values:
- —Waiting for connectivity to the peer.
- —Steady state. VSX LAGs are up when the device is in this state.
- —Lost ISL connectivity to the peer and the device is operating as primary.
- —Lost ISL connectivity to the peer and the device is operating as secondary.
- —ISL connectivity to the peer is restored and the device is syncing states to the peer.
- —ISL connectivity to the peer is restored and the device is learning states from the peer. VSX LAGs are down when the device is in this state.
- —Device has learned its states from the peer and monitoring for hardware is to be programmed. VSX LAGs are down when the device is in this state.
- —ISL port number of the selected AOS-CX switch. If the ISL is a LAG Link Aggregation Group . A LAG combines a number of physical ports together to make a single high-bandwidth data path. LAGs can connect two switches to provide a higher-bandwidth connection to a public network. , then this field displays the LAG name.
- —Management state of the ISL. Following are the supported values:
- —ISL management is operational.
- INTER_SWITCH_LINK_MGMT_INIT—ISL management is in initialization state.
- CONFLICTING_OR_MISSING_DEVICE_ROLES—Either the role is missing on one of the VSX peers or the same role is configured on both VSX peers.
- SW_IMAGE_VERSION_MISMATCH_ERROR—Software version on the primary device does not match with the software version on the secondary device.
- INTER_SWITCH_LINK_DOWN—ISL is down.
- INTERNAL_ERROR—ISL management has internal errors.
- —Configuration synchronization between the VSX switches are enabled or disabled.
- —Status of the configuration synchronization between the VSX switches. Following are the supported values:
- IN-SYNC—Configuration synchronization is operational and the VSX switches are in sync.
- DISABLED—Configuration synchronization is disabled.
- SW_IMAGE_VERSION_MISMATCH_ERROR—Software image version on the primary device does not match with the software image version on the secondary device.
- CONFLICTING_OR_MISSING_DEVICE_ROLES—Either the role is missing on one of the VSX peers or the same role is configured on both VSX peers.
- PEER_DB_CONNECTION_ERROR—Error in connecting to a peer database. It involves errors due to ISL or ISL management.
- CONFIGURATION_SYNC_CONFLICT—Configuration synchronization is operational, but has conflicts synchronizing the configuration. Conflicts can occur if the configuration on the primary device is marked for sync, but the same configuration on the secondary device is not marked for sync.
- CONFIGURATION_SYNC_MISSING_REFERENCE—Configuration synchronization is operational, but has missing references in synchronizing the configuration.
- —Role of the AOS-CX switch in the VSX configuration. Supported values are and .
- —IPv4 address of the peer switch.
- —Serial number of the peer switch.
- —MAC address of the peer switch.
- —Hostname of the peer switch.
- —Date on which the peer switch was last synced.
- Tunnel—Displays the following information about tunnels configured on the Branch Gateway and Access Point:
- —Name of the tunnel interface.
- —MAC address of the peer device with which the tunnel was established.
- —MAC address of the Branch Gateway.
—Source IP address from where the traffic originates. The source IP is displayed as ANY when the source IP address is 0.0.0.0.
- —IP address to which the traffic is sent. The Destination IP is displayed as ANY when the destination IP address is 0.0.0.0.
- —Timestamp showing when the tunnel was established.
- —VLAN ID of the tunnel.
- —Source Serial of the tunnel.
The tunnel in green color indicates that the tunnel is up. The tunnel in red color indicates that the tunnel is down.
- Uplink—Displays the following information about uplinks configured on the Branch Gateway and Access Point:
- —Type of the uplink.
- —VLAN ID of the uplink.
- —Uplink status.
- —Description of the uplink.
- —WAN status.
- —IP address of the WAN interface.
- —Public IP address.
- —MAC address of the device.
- —Serial number of the device.
- —Port number of the device.
- —Displays a list of tunnels mapped to the uplink. Click the drop-down on each tunnel to view the tunnel details.
The uplink in green color indicates that the uplink is up. The uplink in red color indicates that the uplink is down.
- Edge—Displays the following information about the link:
- —Interface numbers of the device.
- —Displays the health status of the edge link. This parameter is only available when the edge link is down.
- —Interface number of the device.
- —Serial number of the device.
- —Name of the device.
- —Port number of the device.
For Branch Office Controller (BOC) to Switch link, if a peer Branch Gateway link is configured for redundancy, link details are displayed for the peer Branch Gateway to switch link as well.
- Unmanaged edge—Displays the following information about all the links:
- —Interface numbers of the device.
- —Displays the health status of the edge link. This parameter is only available when the edge link is down.
- —Interface number of the device.
- —Serial number of the device.
- —Name of the device.
- —Port number of the device.
- —Interface number of the unmanaged device.
- —MAC address of the unmanaged device.
- —Name of the unmanaged device.
- —Displays the port ID, port name, or MAC address of the unmanaged device.
- ISL edge in AOS-CX VSX topology map—Displays the following information about the ISL edge:
- —Status of the ISL connection with the peer.
- section displays details about all the interfaces that are part of the LAG. This section also displays the details of the devices connected to these interfaces. It displays the following details:
- —Serial number of the individual device.
- —Name of the individual device.
- —Port number of the individual device.
- —This section displays details about the other links present between the VSX configured AOS-CX switches. It displays the following details:
- —Serial number of the individual device.
- —Name of the individual device.
- —Port number of the individual device.
Unreachable Devices
The pane provides information about the orphan and the offline unmanaged devices. An unmanaged device is considered to be orphan when all its neighboring HPE Aruba Networking devices get deleted and are only displayed in the list. An unmanaged device is considered to be offline when all its neighboring HPE Aruba Networking devices are offline and are displayed both in the map and in the list.
When an unmanaged device is either offline or disconnected, they are only displayed in the list. The devices listed in the pane are deleted after 15 days.
To view the pane, click the button. The pane displays the following details:
- —Name of the unmanaged device.
- —Type of the unreachable device.
- —MAC address of the unmanaged device.
- —The last active time and date of the unmanaged device.
VLAN Overlay Details
The topology map displays information about the VLANs configured on switches running AOS-Switch and AOS-CX software.
For more information about viewing the VLAN overlay details, see Viewing the VLAN Overlay Details.
