Configuraton
　　
　　*FIFO
　　(config-if)#FIFO
　　
　　*weighted fair
　　(config-if)#fair-queue{congestive-discard-threshold}
　　
　　*Priority
　　(config-if)#priority-group group_number(1-16)
　　(config)#priority-list list-number protocol protocol-name {high | medium | normal | low} queue-keyword
　　keyword-value
　　list-number interface interface-type interface-number {high | medium | normal | low}
　　(config)#priority-list list-number default {high | medium | normal | low}
　　*optional commands
　　!command to change the max number of packets in each queue.
　　(config)#priority-list list-number queue-limit high-limit medium-limit normal-limit low-limit
　　!default 20 40 60 80
　　
　　!queue-keyword values
　　fragmens-->number of fragments
　　gt-->port num
　　lt-->port num
　　list--->access list
　　tcp-->port num
　　udp-->port num
　　
　　*Custom
　　(config-if)#custom-queue-list list_number(1-16)
　　(config)#queue-list list-number protocol protocol-name {high | medium | normal | low} queue-keyword keyword-value
　　(config)#queue-list list-number interface interface-type interface-number queue-number
　　(config)#queue-list list-number default queue-number
　　-optional commands
　　!specify the max number of packets for a particular queue (limit-number 0 - 32,767)
　　(config)#queue-list list-number queue queue-number limit limit-number
　　!if max number of packets are set too low you will drop the excess traffic!!!!
　　!default limit-number is 20
　　(config)#queue-list list-number queue queue-number byte-count byte-count-number
　　!default byte count is 1500
　　
　　*debug commands
　　show queueing
　　show queueing {int | custom | priority | fair }
　　show interfaces
　　
　　Compression
　　
　　One of the most important points in compression theory is that there exists a theoretical limit, known as Shannon''s Limit, to how much a given source of data can be compressed. Beyond that point, it is impossible to reliably recover compressed data.
　　
　　Compression is not a bandwith replacement only a temporary fix!
　　
　　You should not compress:
　　
　　Already compressed data
　　
　　Encrypted data
　　
　　High speed links
　　
　　Compression is typically either a cpu or memory intensive opreation and must be preformed on both ends of the connection.
　　
　　Types of compression
　　
　　Link compression (also known as per-interface compression, mainly point to point links because the packet is non-routable once compressed)
　　
　　Payload compression (also known as per-virtual-circuit compression, can be used any situation)
　　
　　TCP header compression (used when you have lots of small ip packets)
　　
　　Three types of link compression
　　
　　predictor - memory intensive
　　
　　stac - cpu intensive
　　
　　mppc- microsoft point-to-point compression- used in tunneling ppp across a virtual connection (PPPTP- Point-to-Point Tunneling Protocol)
　　(config-if)#compress {predictor | stac | mppc}
　　
　　Payload compression
　　used mainly in
　　
　　Frame relay
　　
　　SMDS
　　
　　ATM
　　(config-if)#compress payload-compress
　　
　　TCP header compression
　　
　　used mostly in PPP connections
　　(config-if)#ip tcp header-compression
　　
　　
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