Supercluster in PCE Web Console
This section describes how to use the PCE web console with a PCE Supercluster.
Overview of Supercluster in Web Console
Each PCE in the Supercluster processes the summarized traffic data reported by its managed workloads and stores a computed view of the traffic in memory, just as on a standalone PCE. The display of this data in the Illumination map, however, looks different depending on whether you are logged into the leader or one of the members:
The Illumination map on the leader shows an aggregated view of traffic data for the entire Supercluster. The leader periodically queries traffic data from each PCE to generate this map.
The Illumination map on Supercluster members only shows data from workloads that have been paired with that member PCE.
The following Illumination features are not available in a Supercluster (leader or member):
Clear traffic for one traffic link
Increase the VEN reporting rate
These features are only available on a leader (and not available on a member):
Add a rule from Illumination
Policy Generator
App Group configuration
VEN heartbeat and uptime data is not replicated in a Supercluster. It is available only on the leader itself and the individual members themselves:
Leader: Aggregated Illumination Data
The leader of the Supercluster shows a complete picture of all aggregated traffic from all PCEs in your Supercluster. Traffic data from members is refreshed periodically and then cached on the leader.
The refresh interval increases with the number of workloads that you pair with the Supercluster, with a minimum sync interval of 10 minutes and up to 24 hours, depending on how many workloads are paired with your Supercluster. You can force a sync of traffic data from members to the leader at any time, but the sync can take several minutes to complete.
Depending on your network speeds and possible latency, the Illumination map's traffic data can be delayed temporarily while the data is syncing.
Supercluster Illumination Sync with Members
In the lower right of the Illumination map on the leader, a small timer indicates when the Illumination map data was last refreshed.
Click the timer to launch a dialog from which you can refresh the Illumination map data so all traffic from all PCEs in the Supercluster is displayed.
Member: Local Illumination Data
The Illumination map on a member displays traffic information only from those workloads that have been paired with the member PCE. When viewing the Illumination map on a member, you can see a message indicating that you are viewing a local set of traffic data.
Web Console Filtering Problem
In the PCE web console on a Supercluster member, filtering the workload view with Policy Sync: Active displays the workloads for the entire Supercluster, instead of workloads for the member on which the report is run. This filter includes workloads marked as "Unavailable."
Workaround: In addition to Policy Sync: Active, use the PCE member FQDN filter to exclude all workloads not paired with the desired member. This filter combination is available:
Policy Sync: Active and PCE:Member PCE FQDN