2.1.d i Network and client health (360)
General information on “SDA Network and client health (360)":
- Visible under Assurance -> Dashboards -> Health -> Overall Health
- Shows the overall and per-device health of all network devices (routers/switches/…), wired and wireless clients
- Opening a single device provides “a 360 view” including:
- Issues: Shows if there are current issues.
- Physical Neighbor Topology: Shows the physical connection of the device within the fabric.
- Event Viewer: Records syslog events of Error and above (Emergency, Alert, Critical).
- Path Trace Application: Shows the path between a source/destination. Also displays possible path errors (eg. ACLs blocking traffic, …).
- Application Experience: Measure of application performance. Only available for routers/clients.
- Detailed Information: Shows device-specific information like CPU, memory, interface usage, etc.
- When opening the “360 view” of a single device, a timeline is shown
- Within the timeline, a specific timestamp or range can be selected to show information on what happened at that timestamp/range
- It is possible to back up to 14 days in the timeline (= maximum information storage time)
- The health score per device is measured between 0 and 10 points and is represented with colors:
- Red: Critical issues. Health score is between 1 and 3.
- Orange: Warnings. Health score is between 4 and 7.
- Green: No errors/warnings. Health score is between 8 and 10.
- Grey: No data available. Health score is 0.
2.1.d ii Monitoring and troubleshooting
General information on “SDA Monitoring and troubleshooting”:
- For monitoring/troubleshooting to be possible the device must have been added to a fabric site and SNMP collectors need to be enabled
- DNAC monitors all issues happening within the network (network devices and clients) and classifies them based on their impact
- DNAC Assurance issue classification:
- P1: Critical issue which needs immediate attention and can impact the whole network.
- P2: Major issue which can potentially impact multiple devices/clients.
- P3: A minor issue with local or minimal impact.
- P4: A warning issue that may not be a problem but addressing it can optimize the network performance.
- This behavior can be modified under Assurance -> Manage -> Issue Settings
- It’s possible to change the issue classification based on the own needs as well as turning off detection for issues completely
- When clicking on an issue, DNAC provides suggested action which may lead to resolving it
- The last provided option is always “Contact Cisco TAC for support”
- Within an issue, the status can be changed to RESOLVED or IGNORE:
- When changing the status to RESOLVED, the issue will be closed and can’t be re-opened anymore
- When changing the status to IGNORE, the issue will be ignored for a defined amount of time (1 - 24 hours)