The MultiWAN tab displays the status of the MultiWAN application running on the SC//AcuVigil™ edge security device (ESD). MultiWAN provides failover and load balancing across multiple WAN interfaces. Use this tab to check the active WAN interface, review interface health, and inspect historical failover events.
Application description: Failover and load balancing for multiple WAN interfaces.
Supported ESD models: SG1v1, SG2v1, XG1v1, VG
Layout
The MultiWAN tab has a standard app header and three sub-views: Status, History, and Settings. The default sub-view is Status.
Header
| Element | Description |
|---|---|
| App icon | MultiWAN app icon. Decorative. |
| MultiWAN | App name / block title. |
| Subtitle | "Failover and load balancing for multiple WAN interfaces." Static descriptor. |
| Version | Package version string (for example, Ver.R236BB). |
| Status | Link. Switches to the Status sub-view. |
| History | Link. Switches to the History sub-view. |
| Settings | Link. Switches to the Settings sub-view. |
Status sub-view
The default sub-view. Shows the currently active WAN interface and a table of all configured WAN interfaces with their health data.
Active VPN Interface
Active VPN Interface: <interface_name>
Identifies which WAN interface is currently carrying the site's VPN traffic, for example wan.
Interfaces table
One row per configured WAN interface.
| Column | Description |
|---|---|
| Name | Interface name (for example, wan, wan100, wan200, aux). |
| Load Balance Group | The priority group this interface belongs to. Lower number = higher priority. Group 1 is primary; higher numbers are standby. |
| State | Current interface state: Online or Offline. |
| Since | When the interface last changed to its current state (format: YYYY-MM-DD HH:MM). |
| Tracking | Whether connectivity tracking is running on the interface, for example Active. |
| Tests Passed | Tracking tests passed, in the format passed/total (for example, 893/914). |
| Weight | The interface's share of traffic within its load balance group. 0 indicates the interface is not carrying traffic. |
| External IP | The public IP address reported for this interface when online. Empty when offline. |
| Status | Health status of this interface: OK, INFO, WARNING, or CRITICAL. |
History sub-view
Shows time-series graphs of WAN activity. All times are in Central Time.
Controls
| Element | Description |
|---|---|
| Period | Buttons: Prev, 1D, 7D, 30D, Next. 1D, 7D, and 30D set the length of the period. Prev and Next move back or forward by one period. |
| Start Date | Date picker. Sets the start of the period shown. |
| Jump to | Links: Now, Last Week, Last Month. Moves the graphs to that period. |
| Reset Zoom | Button on each graph. Restores the graph to the full period after you zoom in. |
To zoom in on a graph, click and drag across the time range you want to see. Select Reset Zoom to return to the full period.
Active Interface graph
Plots which interface was active over the period.
Legend labels: Primary, Secondary, No Data.
- Primary means an interface in load balance group 1 was active.
- Secondary means a lower-priority interface was active, so the site had failed over.
Interface graphs
One graph per WAN interface, labeled Interface <name> (for example, Interface wan). Plots the interface's status over the period.
Legend labels: OK, INFO, WARNING, CRITICAL, No Data.
Settings sub-view
Note: Scale Computing manages these settings as part of the managed service. You can view them here. To request a change, contact Scale Computing Support: open a ticket in the SC//AcuVigil dashboard, email team@scalecomputing.com, or call (512) 687-7401. |
Controls how MultiWAN tests each WAN interface, when it fails over and fails back, and how traffic is shared between interfaces.
| Field | Type | Options | Description |
|---|---|---|---|
| Use Ping Tests | Dropdown | Yes, No | Whether MultiWAN uses ping tests to the track IP addresses to check each interface. Default: No (UDP tests). |
| Sensitivity | Dropdown | High, Medium, Low | How quickly MultiWAN reacts to failed connectivity tests. Default: Medium. See Sensitivity in MultiWAN. |
| Failback Delay | Number (minutes) | — | How long the higher-priority interface must be healthy again before traffic moves back to it. Default: 0. |
| Track IP | Text area | — | The IP addresses MultiWAN tests to check connectivity on each interface. |
| Hysteresis | Dropdown | Disabled, Enabled | Tooltip: "Enables/disables hysteresis logic." When enabled, MultiWAN pauses switching on an interface that goes offline repeatedly in a short time (flapping). Default: Disabled. |
| Failure Count | Number | — | Tooltip: "Number of offline transitions within the window to trigger hysteresis." Default: 0. |
| Time Window | Number (seconds) | — | Tooltip: "Time window (in seconds) to track flaps." Default: 30. |
| Pause Duration | Number (seconds) | — | Tooltip: "Pause duration (in seconds) after hysteresis is triggered." Default: 15. |
Interfaces table
One row per WAN interface.
| Column | Type | Description |
|---|---|---|
| Interface | Read-only | The interface name, for example wan or wan100. |
| Weight | Number | The interface's share of traffic within its load balance group. Tooltip: "Weights within a Load Balance Group must add up to 100. Minimum valid weight is 20." |
| Load Balance Group | Dropdown, 1 to 10 | The interface's priority. Group 1 carries traffic first. MultiWAN uses the next group only when every interface in the groups above it is offline. |
| Disable Alerts | Checkbox | Stops alerts for this interface. |
For example, to share traffic equally between two connections and keep a cellular connection as backup, put wan and wan100 in group 1 with weight 50 each, and put aux in group 2 with weight 100.
Buttons
| Element | Type | Description |
|---|---|---|
| Update Settings | Button | Saves the settings and applies them to the ESD. |
| Delete Config | Link | Deletes the MultiWAN configuration for this site. |
Alerts
The Alerts section lists the alerts set up for MultiWAN. Scale Computing sets up alerts as part of the managed service; to request one, contact Scale Computing Support.
Note: A settings change applies to the live site right away. A change to the weights or load balance groups can move traffic between WAN connections. |
What to look for
- Active VPN Interface — the primary interface (for example,
wanin group 1) should be active under normal operation. A secondary interface being active means the primary has failed. - State = Offline on the primary — combined with the secondary being
Online, confirms active failover. - Tests Passed ratio declining — a dropping ratio (for example,
450/914) on an Online interface indicates intermittent connectivity problems even when the interface has not fully failed over. - Secondary bands in the Active Interface graph — these show periods when a non-primary interface was carrying traffic. Click and drag to zoom in and read exact failover times.