Cisco 1700 Series Installationsanleitung PDF herunterladen (Seite 18)

Configuring an ADSL WAN Interface Card on Cisco 1700 Series Routers

OL-3317-03

Configuring Quality of Service Parameters

int atm0/0.1 point-to-point

pvc 0/33

vbr-rt 320 320 30

tx-ring-limit 3

protocol ppp Virtual-Template1

interface Virtual-Template1

bandwidth 320

ip unnumbered Loopback1

ip mroute-cache

service-policy output 1751_ADSL

ppp multilink

ppp multilink fragment-delay 4

ppp multilink interleave

access-list 100 permit udp any any precedence critical

dial-peer voice 201 voip

destination-pattern 3640200

session target ipv4:10.0.0.11

ip qos dscp cs4 media

ip qos dscp cs4 signalling

DiffServ

DiffServ addresses the clear need for relatively simple and coarse methods of categorizing traffic into

different classes and applying QoS parameters to those classes. DiffServ supports class-based marking.

Cisco Express Forwarding (CEF) mode is required for DiffServ support. To enable CEF, enter the ip cef

command.

Configuration Example

The following example shows a Cisco 1751 router configured with DiffServ:

access-list 102 permit udp host 16.0.0.4 host 15.0.0.5

access-list 103 permit udp host 16.0.0.4 host 13.0.0.5

ip cef

class-map match-all traffic-INTRA

match access-group 102

class-map match-all traffic-INTER

match access-group 103

class-map match-all traffic-dscp1

match ip dscp 1

class-map match-any traffic-prec3

match ip dscp 24

match ip dscp 25

match ip dscp 26

match ip dscp 27

policy-map ADSL-out

class traffic-INTRA

bandwidth percent 8

class traffic-dscp1

set ip dscp 5

class traffic-prec3

set ip precedence 2

class traffic-INTER

bandwidth percent 8

class class-default

fair-queue

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 33 34

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