A switch combines the functionality of a bridge and a hub. It segments networks and can interpret and filter packet data to send it directly to an attached network device. Switches use the network device's MAC address to determine the data package's destination. A switch operates in full-dup...
QoS 1 message published / 256 byte 545 555 MQTT over TCP vs MQTT over WebSocket. Source: https://go.ably.com/b73 Can I use MQTT with WebSocket? Earlier we touched on MQTT’s ability to replace TCP with WebSocket as an alternative transport. To implement MQTT over WebSocket you’ll nee...
I would assume that I am aware of how to work withDispatchGroup, for understanding the issue, I've tried: classViewController:UIViewController{overridefuncviewDidLoad() {super.viewDidLoad() performUsingGroup() }funcperformUsingGroup() {letdq1=DispatchQueue.global(qos: .userInitiated)letdq2=...
If you use a command shell like 4DOS or 4NT, you can even alias "del" to "recycle," thereby turning the MS-DOS del command into a file recycler instead of a deleter. This has saved my butt on many occasions! Figure 5 RECYCLE in Action I designed CRec...
Most MQTT Brokers implement the fundamental features specified in the MQTT protocol to support basic messaging functionality, such as QoS levels, client authentication, retained messages, shared subscriptions, and more. These features facilitate the rapid implementation of specific use cases. However, ther...
Keep in mind, if you're working to reduce latency, there other things you can do too, such as using higher bandwidths (which transmit a frame in less time - also may reduce the need to queue any frames), or try to reduce the number of switches between hosts, or cons...
The Will Message can be seen as a simplified MQTT message that also contains Topic, Payload, QoS, Retain, etc. When the device goes offline unexpectedly, the will message will be sent to the Will Topic. The Will Payload is the content of the message to be sent. The Will QoS is the ...
I'm configuring QoS for some VRF customers and I'm undecided if I should be using explicit null (or php-disable in the case of SR). If I have a VRF customer connected to a PE and I wish to apply a policy (shaping, remakring etc) on outboud traffic to the CE, based on the...
" < > | @ ' %. Therefore, when configuring a UCL group name on the controller, do not use Chinese characters or special characters. If the switch has been associated with anAgile Controller-Campusand has free mobility configured, perform the following steps to delete historical data and reco...
Tagged vs untagged VLANs can be confusing for beginners. Discover the difference between the two VLAN types and when you need to use each.