IP Telephone and Access QoS

Backbone

Reston Lab

Cisco/7500

edge router

edge router

• ToS bits set for voice pkts

• RSVP may be also be enabled

• Smart queuing on edge router

• Overload traffic injected

• Overload traffic higher drop rate

• Smart queuing enabled on exit links

• Diff drop weights for diff marked pkts

Customer site

Cisco/5300

PSTN switch

PSTN switch

Cisco/5300

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