Apparatus for providing QoS of VoIP traffic on IP router and forwarding method therefor
First Claim
1. A voice over IP (VoIP) quality of service (QoS) providing apparatus in an Internet protocol (IP) network containing data traffic and providing VoIP service, the VoIP QoS providing apparatus comprising:
- a softswitch which performs a VoIP call coordination function in the IP network and transmits VoIP call connection information in a reliable multicast transmission method; and
a router which provides QoS in forwarding a VoIP packet, by using the information received from the softswitch.
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Abstract
An apparatus for providing quality of service (QoS) of voice over IP (VoIP) traffic on IP routers and a forwarding method therefor are provided. The VoIP quality of QoS providing apparatus in an Internet protocol (IP) network containing data traffic and providing VoIP service includes: a softswitch which performs a VoIP call coordination function in the IP network and transmits VoIP call connection information in a multicast transmission method; and a router which provides QoS in forwarding a VoIP packet, by using the information received from the softswitch. With the VoIP QoS service providing apparatus, reliable multicast transmission method is enabled in providing VoIP connection information to each router, and when a softswitch additionally processes related functions, the load to the system is reduced. Since in the router, VoIP QoS flow and QoS information are added to a flow table for performing packet forwarding, VoIP packet recognition and QoS providing are enabled. In addition, flow management for providing QoS in a variety of shapes in the similar manner can be provided.
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Citations
9 Claims
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1. A voice over IP (VoIP) quality of service (QoS) providing apparatus in an Internet protocol (IP) network containing data traffic and providing VoIP service, the VoIP QoS providing apparatus comprising:
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a softswitch which performs a VoIP call coordination function in the IP network and transmits VoIP call connection information in a reliable multicast transmission method; and
a router which provides QoS in forwarding a VoIP packet, by using the information received from the softswitch. - View Dependent Claims (2, 3, 4)
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5. A packet forwarding method which provides QoS of VoIP traffic in an IP router, comprising:
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determining whether or not a received packet is included in information of the forwarding table of the router;
checking whether or not the packet is a VoIP packet;
setting a field value of an IP precedence in the format of an IP service type, to a predetermined value; and
outputting a packet queued according to the precedence value. - View Dependent Claims (6, 7, 8, 9)
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Specification