Topology

To access the active topology, from the blueprint, navigate to Active / Physical / Topology.

Topology Views

Topologies can be viewed at three levels of detail: grouped, compact, and full. (Grouped and compact are new in AOS version 3.3.0.) Green elements in the topology indicate no anomalies. Red elements indicate anomalies, which must be resolved before committing changes.

Grouped

  • To show servers, click the Show Servers check box.
  • To show node name (and hostname as applicable) hover over an element (square).
  • To show node details, select the node by either clicking its element or by selecting it from the Selected Node drop-down list.
_images/active_topology_grouped_330.png

Compact

  • To show servers, click the Show Servers check box.
  • To show node name (and hostname as applicable) hover over an element (square).
  • To show node details, select the node by either clicking its element or by selecting it from the Selected Node drop-down list.
_images/active_topology_compact_330.png

Full

  • To make topology elements larger, click the Expand Nodes check box.
  • To show the links between elements, click the Show Links check box.
  • To show node name, and hostname as applicable, hover over an element.
  • To change the labels (name, hostname, S/N) that are shown in the topology, select a different label from the Topology Label drop-down list.
  • To show node details, select the node by either clicking its element in the topology or by selecting it from the Selected Node drop-down list.
_images/active_topology_full_330.png

Topology Selection Views

When a node is selected from the topology view (by clicking its element in the topology, or by selecting it from the Selected Nodes drop-down list), the node topology is shown. The selected node can be viewed in three different ways: neighbors view, links view, or (new in AOS version 3.3.0) headroom view. Telemetry and other device properties are shown in the selection panel on the right.

Neighbors View

  • Aggregated server-leaf links are encircled (new in AOS version 3.3.0).
  • To show unused ports, click the Show Unused Ports check box (new in AOS version 3.3.0).
  • To change the labels (name, hostname, S/N) that are shown in the topology, select a different label from the Topology Label drop-down list.
  • To change the layer that is shown in the topology, select a different layer (intent, traffic heat) from the Layer drop-down list.
  • Choose to show all neighbors or only specific ones.
_images/active_topology_neighbors_330.png

Headroom View

New in version 3.3.0: Headroom View is available in the AOS Blueprint Active Topology view.

To view the Headroom View in the AOS Blueprint Active Topology, go to Active → Physical → Topology, select the layer Traffic Heat to view Traffic Heat view on top of Physical topology.

_images/active_topology_headroom_1.png

Note

Device Traffic probe must be enabled for Headroom View layer. If user disables or deletes the probe, the Layer Traffic Heat” under the Active topology will disappear. See Device Traffic Probe for more info.

The view uses different colors to describe the capacity, where different color means different available/used capacity.

_images/active_topology_headroom_color.png

The node colors are based on the current System level TX/RX, averaged to 2min by default. If the aggregated TX or RX across all the device interfaces is < 20%: color Green . If between 21-40%, color Yellow etc. For each 20% difference, capacity is shown with a different color.

Note

The server coloring is calculated based on the interface counters of the leaf ports facing that server.

Traffic Heat view is available at all three levels of detail: grouped, compact, and full. See Topology Views to know more about levels.

_images/active_topology_headroom_compact_grouped.png

If any of a device deployed ports is > 81% of its capacity in either RX or TX, a new “Alert” icon is shown on the device.

_images/active_topology_headroom_2.png

Mousing over the node will show the exact aggregated values.

_images/active_topology_headroom_3.png

Note

On the grouped/compact view, we show this alert by coloring the right top corner of the square.

To view RX/TX per interface for a single node, click on the node.

_images/active_topology_headroom_4.png

To view Headroom View layer, click on the node and select Headroom View . Hovering over to a link will display available Headroom capacity for that link.

_images/active_topology_headroom_5.png

Traffic History

To view traffic history on top of physical topology.

  1. Select Time Series.

  2. Select Aggregation: Users can select 2, 5, 10, 20 or 30 minutes to check traffic at specific time in the past but can also select larger aggregation such as 1 hour or 1 day to see traffic average across longer period of time.

  3. Use Bottom Slider to select a past period of time to look at. The bottom left date+time is how far back user can go, based on data retention time. The bottom right date+time is when the user open the time series.

  4. Use top slider to navigate across time in the selected period.

  5. See Node Colors changing based on System level Traffic Heat.

    _images/active_topology_headroom_6.png