Cisco 7200 Series Routers
Cisco 7200 Router is a provider class hardware ensuring internet traffic with the speed of up to 2 million packets per second.
Device supports wide range of expansion modules for creation of various configurations.
Main advantages of Cisco 7200 are the high routing speed (NPE-G2 Network Processing Engine), VPN Services Adapter, big set of various types of configurations, support of various interfaces from DS0 up to OC-3, Fast Ethernet, Gigabit Ethernet, Packet over SONET, redundancy and failover.
Capabilities of Cisco 7200:
Support of QoS (Quality of Service)
Aggregation of customer broadband access - up to 16,000 PPP-sessions on the chassis
Fast routing Multiprotocol Label Switching (MPLS)
Support of IP Security (IPsec) VPN: up to 5,000 tunnels per chassis
Transparent signal forwarding H.323 and SIP
Integration of voice, video and data - voice port adapters, TDM support
Session Initiation Protocol (SIP) is a text-based standard put in place by the Internet Engineering Task Force (IETF) and is the primary protocol for Voice over Internet Protocol services. SIP is similar to a MGCP in that it's a signaling protocol that can create, maintain and terminate sessions in IP-based networks. These sessions include multimedia conferencing and two-way phone calls. SIP protocol can run on User Datagram Protocol (UDP), Stream Control Transmission Protocol (SCTP) and Transmission Control Protocol (TCP) because it was created to function independently from the underlying Transport Layer as an Application Layer.
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