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Failover and Load Sharing in SIP Telephony

Kundan Singh; Henning G. Schulzrinne

Title:
Failover and Load Sharing in SIP Telephony
Author(s):
Singh, Kundan
Schulzrinne, Henning G.
Date:
Type:
Reports
Department(s):
Computer Science
Persistent URL:
Series:
Columbia University Computer Science Technical Reports
Part Number:
CUCS-011-04
Publisher:
Department of Computer Science, Columbia University
Publisher Location:
New York
Abstract:
We apply some of the existing web server redundancy techniques for high service availability and scalability to the relatively new IP telephony context. The paper compares various failover and load sharing methods for registration and call routing servers based on the Session Initiation Protocol (SIP). In particular, we consider the SIP server failover techniques based on the clients, DNS (Domain Name Service), database replication and IP address takeover, and the load sharing techniques using DNS, SIP identifiers, network address translators and servers with same IP addresses. Additionally, we present an overview of the failover mechanism we implemented in our test-bed using our SIP proxy and registration server and the open source MySQL database.
Subject(s):
Computer science
Item views
436
Metadata:
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Suggested Citation:
Kundan Singh, Henning G. Schulzrinne, , Failover and Load Sharing in SIP Telephony, Columbia University Academic Commons, .

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