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Cisco AVVID Network Infrastructure Enterprise Quality of Service Design
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Chapter 4 QoS in an AVVID-Enabled Wide-Area Network
QoS Recommendations for WAN Aggregation Routers
interface Dialer1
encapsulation ppp
dialer pool 1
dialer remote-name routerB-dialer1
dialer-group 1
dialer string 12345678
service-policy output WAN-EDGE-ISDN
This command binds the MQC policy to the ISDN interface.
ppp multilink
ppp multilink fragment-delay 10
This command limits the maximum delay.
ppp multilink interleave
This command enables MLP LFI.
ppp multilink links minimum 2
This command brings up both B channels immediately.
Tip
For additional details refer to the VoIP over ISDN white paper (internal).
Summary Configurations
This section provides configuration examples for implementing QoS on WAN aggregation routers.
Example 4-17 Classifying and Provisioning for Voice, Video and Data
class-map match-all VOICE
match ip dscp ef
class-map match-all VIDEO
match ip dscp af41
class-map match-all VOICE-CONTROL
match ip dscp af31
class-map match-any GOLD-DATA
match ip dscp af21
match ip dscp af22
match ip dscp af23
class-map match-any SILVER-DATA
match ip dscp af11
match ip dscp af12
match ip dscp af13
!
policy-map WAN-EDGE
class VOICE
priority percent 17
class VIDEO
priority percent 16 30000
class VOICE-CONTROL
bandwidth percent 2
class GOLD-DATA
bandwidth percent 25
random-detect dscp-based
class SILVER-DATA
bandwidth percent 15
random-detect dscp-based
class class-default
fair-queue
random-detect dscp-based
random-detect dscp-based
random-detect dscp 0 96 128 10
random-detect dscp 2 70 128 10
random-detect dscp 4 58 128 10
random-detect dscp 6 44 128 10