I am trying to understand when Policing is used what scheduling policy is used, ie what factors decide when queue AF11,12,13 should be serviced before AF21,22,23 queue. I know that packets once in their policed queue may be subjected to random drops (depending on their drop precedence) and RED, but I do NOT know what mechanism the router uses to decide on which of the queues the next packet should be taken from and placed on WAN interface.
What you're asking is very, very broad. QoS features vary much by platform and IOS version. Even default QoS operation can change across IOS versions.
Generally, most Cisco devices only provide either a single FIFO queue, or for routers with slower serial links, WFQ default. Everything beyond that normally requires explicit configuration.
What a platform/IOS provides is documented in the corresponding reference manuals. Why to use certain features are documented/explained in various technotes, white papers, QoS design guides, and/or QoS books.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
Im studying the 100-105 book by Odom and am currently on the topic of Port security. I purchased a used 2960 and I'm trying to follow a...
While deploying a number of 18xx/2802/3802 model access points (APs), which run AP-COS as their operating platform. It can be observed on some occasions that while many of their access points were able to join the fabric WLC withou...
I am going to design and build an LAN network under a tunnel underground with long distance between the switches.
I will have 2 Catalyst switches and 8 Industrial IE3000, and they will be connected with fiber.
For now I am planning on use Layer-2 s...