Cisco routing uses Policy-map for speed limiting

Speed limit is mainly in the bandwidth under the circumstances, in order to ensure the specific business bandwidth needs to take some of the necessary measures, the following mainly in POLICY-MAP implementation speed limit as an example explanation

1. Generate a list of ACLs for the stream control IP (primarily matching traffic that requires speed limit management)

Access-list Permit IP host 192.100.49 any

Access-list permit IP any host 192.100.49

2. Define Class-map

Class-map Match-all test110 (name, designed to be a convenient name for identification) also match-any options

Match Access-group 110

3. Define Policy-map

Policy-map Rate-limit (can be designed as other business names, easy to identify such as mail OA, etc.)

Class test110 (Match Class-map)

Police 40000000 conform-action transmit exceed-action drop

//Speed limit 4M, direct drop out of traffic

There are many speed limit options available in this mode, depending on the requirements

4, the interface call policy, to be the policy application, otherwise invalid

Interface GIGABITETHERNET0/1//Of course in some cases can be connected under the three-layer SVI

Service-policy input Rate-limit

Service-policy Output Rate-limit

5. Check whether Policy-map is in effect

R1#sh Policy-map Interface G0/1

An example

Access-list permit tcp any 192.168.0.0 0.0.255.255 eq www//service application

Access-list 151 permit ip any 192.168.102.0 0.0.0.255//ad, Mailbox network segment

Class-map Match-any Service

Match Access-group 150

Class-map Match-any Mail

Match Access-group 151

Policy-map INNER_CBWFQ

Class Service

Bandwidth percent 40

Class Mail

Bandwidth percent 40

Class Class-default

Fair-queue

Policy-map outer_cbwfq_8m

Class Class-default

Shape Average 8000000

Service-policy INNER_CBWFQ//nested a policy, interface as long as binding a outer_cbwfq_8m

Under the Internet interface:

Service-policy Output outer_cbwfq_8m

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Cisco routing uses Policy-map for speed limiting