Troubleshooting Gateway Connectivity Issues

The following tests are available to diagnose issues pertaining to WAN Wide Area Network. WAN is a telecommunications network or computer network that extends over a large geographical distance. or SD-WAN Software-Defined Wide Area Network. SD-WAN is an application for applying SDN technology to WAN connections that connect enterprise networks across disparate geographical locations. network connections:

Ping Test

The Ping test sends ICMP Internet Control Message Protocol. ICMP is an error reporting protocol. It is used by network devices such as routers, to send error messages and operational information to the source IP address when network problems prevent delivery of IP packets. echo packets to the IP addresses of the selected devices to check for latency issues.

To perform a ping test on Gateways, complete the following steps:

  1. In the Aruba Central app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Groups, Labels, or Sites. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Gateways.

        A list of gateways is displayed in the List view.

      3. Click a gateway listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the gateway is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Gateway.
  4. From the Test drop-down list, select Ping Test.
  5. From the Sources drop-down list, select source.

    You can select multiple Gateways.

  6. From the Destination Type drop-down list, select one of the following:
  7. To use additional parameters, click Show Additional Test Settings and enter values in the following fields:

    Show Additional Test Settings is not displayed when a Test type is not selected.

    1. In the Packet Size field, enter the packet size to capture and store the data packet to analyze network issues at a later stage. The range is from 10 to 2000 bytes.
    2. In the Count field, enter the count. The value should be between 1 to 1000.
    3. In the Time to Live field, enter the time range. The value should be between 1 to 225 seconds.
    4. In the DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. field, enter the packet header value. The value should be between 0 to 63.
    5. From the Source Interface drop-down list, select one of the following:
    6. Optionally, you can select the Don't Fragment toggle button. This option is used when the packet size is more than the Maximum Transmission Unit (MTU Maximum Transmission Unit. MTU is the largest size packet or frame specified in octets (eight-bit bytes) that can be sent in networks such as the Internet.) size of the interface.

  1. Click Run.

    The output is displayed in the Device Output section.

Traceroute

Traceroute tracks the packets routed from a network host.

To perform a traceroute test on Gateways, complete the following steps:

  1. In the Aruba Central app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Group, Label, or Site. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Gateways.

        A list of gateways is displayed in the List view.

      3. Click a gateway listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the gateway is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Gateway.
  4. From the Test drop-down list, select Traceroute.
  5. From the Sources drop-down list, select sources.

    You can select multiple Gateways.

  6. Enter the hostname or IP address.
  7. To use additional parameters, click Show Additional Test Settings, and from the Source Interface drop-down list, select VLAN Interface.
  8. From the VLAN Interface drop-down list, select the required VLAN ID displayed along with the IP address.
  9. Click Run.

    The output is displayed in the Device Output section.

If you navigate from the device details page, the Tools page appears, where the device context is already set and the Source field is automatically populated based on your selection.

Ping Sweep Test

The Ping Sweep test performs a more advanced check on host reachability and network connectivity. Sends different sizes of ICMP echo packets to the IP addresses of selected devices based on start packet size, end packet size and sweep interval field values.

To perform a ping sweep test on Gateways, complete the following steps:

  1. In the Aruba Central app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Groups, Labels, or Sites. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Gateways.

        A list of gateways is displayed in the List view.

      3. Click a gateway listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the gateway is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Gateway.
  4. From the Test drop-down list, select Ping Sweep Test.
  5. From the Sources drop-down list, select sources.

    You can select multiple Gateways.

  6. From the Destination Type drop-down list, select one of the following:
    • Hostname/IP Address—Enter the hostname or IP address.
    • Client—Select a client.
    • VPNC—Select the VPN Concentrator.
  7. In the Start Packet Size field, enter the start packet size to capture and store the range of data packet to analyze network issues at a later stage.

    The range is from 10 to 1999 bytes.

  8. In the End Packet Size field, enter the end packet size.

    The range is from 11 to 2000 bytes.

  9. In the Sweep Interval field, enter the sweep interval size to set the sweep threshold for the transactions. The range is from 1 to 1990 bytes.
  10. In the Count filed, enter the count.

    The value should be between 1 to 1000.

  11. To use additional parameters, click Show Additional Test Settings and enter values in the following fields:

    Show Additional Test Settings is not displayed when a Test type is not selected.

    1. In the Packet Size field, enter the packet size to capture and store the data packet to analyze network issues at a later stage. The range is from 10 to 2000 bytes.
    2. In the Time to Live field, enter the time range. The value should be between 1 to 225 seconds.
    3. In the DSCP field, enter the packet header value. The value should be between 0 to 63.
    4. From the Source Interface drop-down list, select one of the following:
      • Loopback—Select loopback to verify if ping functionality is working when the source address is set as logical address. It is a logical interface.

      • Management Interface—Select management interface to verify if ping functionality is working when the source address is set as management interface. It is a physical interface which is dedicated to configuration and management operation in the network.

      • VLAN Interface—Select VLAN interface to verify if ping functionality is working when the source address is set as VLAN interface. It is a virtual LAN used to avoid broadcast domain in a switch or gateway.

    5. Optionally, you can select the Don't Fragment toggle button. This option is used when the packet size is more than the Maximum Transmission Unit (MTU) size of the interface.

  1. Click Run.

    The test output is displayed in the Device Output section.

Speed Test (iPerf)

You can perform a speed test to measure network speed and bandwidth. To perform a speed test, you must provide the iPerf server address, protocol type, and speed test options such as bandwidth.

To execute a speed test on Gateways:

  1. In the Aruba Central app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Group, Label, or Site. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Gateways.
      3. A list of access points is displayed in the List view.
      4. Click an access point listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the access point is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Gateway.
  4. From the Test drop-down list, select Speed Test (iPerf).
  5. From the Sources drop-down list, select sources.

    You can select multiple Gateways.

  6. In the Host field, enter a valid hostname or IP address.
  7. To use additional parameters, click Show Additional Test Settings and enter values in the following fields:

    The Show Additional Test Settings option is not displayed when a Test type is not selected.

  1. Port—Select the port.
  2. VLAN Interface—Select the VLAN ID from the drop-down list.
  1. Click Run.

    The test output is displayed in the Device Output section.

HTTP Test

The HTTP Hypertext Transfer Protocol. The HTTP is an application protocol to transfer data over the web. The HTTP protocol defines how messages are formatted and transmitted, and the actions that the w servers and browsers should take in response to various commands. test sends packets to the HTTP URL Uniform Resource Locator. URL is a global address used for locating web resources on the Internet. and tries to establish a connection and exchange data. If the HTTP website returns a response, it indicates that the web server is up and reachable. If the HTTP website does not return a response, it indicates that the server is down and did not return a response.

To perform an HTTP test on Gateways:

  1. In the Aruba Central app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Group, Label, or Site. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Gateways.

        A list of access points is displayed in the List view.

      3. Click an access point listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the access point is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Gateway.
  4. From the Test drop-down list, select HTTP Test.
  5. From the Sources drop-down list, select sources.

    You can select multiple Gateways.

  6. Enter the HTTP URL for which you want to perform the HTTP test, in the URL field.

    For example, http://hostname or http://ipaddress.

  7. Click Run.

    The test output is displayed in the Device Output section.

The test supports only IPv4 address or domain name in the URL field.

HTTPS Test

The HTTPS Hypertext Transfer Protocol Secure. HTTPS is a variant of the HTTP that adds a layer of security on the data in transit through a secure socket layer or transport layer security protocol connection. test sends packets to the HTTPS URL and tries to establish a connection and exchange data.If the HTTPS website returns a response, it indicates that the web server is up and reachable. If the HTTPS website does not return a response, it indicates that the server is down and did not return a response.

To perform an HTTPS URL test on Gateways:

  1. In the Aruba Central app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Group, Label, or Site. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Gateways.

        A list of access points is displayed in the List view.

      3. Click an access point listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the access point is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Gateway.
  4. From the Test drop-down list, select HTTPS Test.
  5. From the Sources drop-down list, select sources.

    You can select multiple Gateways.

  6. Enter the HTTPS URL for which you want to perform the HTTPS test, in the URL field.

    For example, https://URL or https://IPv4.

  7. Click Run.

    The test output is displayed in the Device Output section.

The test supports only IPv4 address or domain name in the URL field.