You can enable telemetry on Dell OS10 switches to integrate Buffer Statistics and Tracking on Dell switches.
When requests are received from the switch, vRealize Network Insight collector stores or buffers the packet on the defined port.
When the buffer size increases due to the increase of input rate when compared with the output rate, the requests might slow down or time-out. Dell OS10 swicthes uses gRPC to capture such metric information, which you can see on vRealize Network Insight. This allows you to diagnose application performance problems that were potentially caused due to network congestion and also proactively provides the impact of congestion on application and network.
- ♦ Run the following commands on the Dell OS10 switch:
telemetry enable ! destination-group dg03 destination vRNI Collector IP 50000 ! subscription-profile sp03 sensor-group bgp sensor-group buffer sensor-group device sensor-group environment sensor-group interface sensor-group lag sensor-group system destination-group dg03 encoding gpb transport grpc no-tls source-interface ethernet1/1/1
- per-port egress unicast queues
- per-port egress multicast queues
- per-port egress service pool
- per priority group ingress shared headroom
- per service pool ingress
What to do next
show ports where metric > X in time range
show switches where metric > X in time range
port show metrics in time range
swicth show metrics in time range
show switches where at least one port metric > X in time range
You see the respective event triggered. For example,
SwitchPort Buffer Threshold Exceeded Event.
You can also search for the Interface Peak Buffer Utilization metric and identify the reason for the request slow down.