SDH
		ATM
		Frame Relay
		MPLS
		MetroEthernet (EOF)
		LRE

PeterStar data services ensure quality and reliable communication at a rather flexible pricing system providing for reductions depending on the total capacity of subscriber terminals purchased.

Frame Relay

Internet access using Frame Relay channels is one of the options of Internet dedicated channel access at a certain guaranteed data speed.

Reliability and informational security of transmitting data over the PeterStar Frame Relay network is ensured by applying fiber-optics technology, information encoding at the transmission over copper pairs and round-the clock monitoring of the network.

Most popular Frame Relay application consists in constructing expandable corporate networks and providing Internet access, for the nature of information exchange in the Frame Relay network perfectly complies with the nature of data exchange in the Internet.

The Frame Relay network is based on frame switching technology. In this case information is transmitted over an efficient transport network. Customers access the service via digital subscriber terminals. Information packed into frames is switched over preprogrammed virtual channels. The most popular Frame Relay application consists in constructing expandable corporate networks and providing Internet access, for the nature of information exchange in the Frame Relay network perfectly complies with the nature of data exchange in the Internet, i.e. data speeds in the Internet and Frame Relay network depend on channels’ total informational load.

To create permanent connections based on the Frame Relay network at each of the points combined by the network a digital subscriber terminal is installed with an Access Rate (AR) selected by you; on the Frame Relay network itself Permanent Virtual Channels (PVC) are created by means of programming between said terminals, providing a Committed Information Rate (CIR) to be programmed at your desire.

Depending on your network load the data rate will vary from CIR to AR. A subscriber at each terminal can access several virtual channels with considerably saving resources due to the data rate alternating.

General advantages for subscribers:

• Possibility of organizing several virtual channels for a subscriber provided with one physical subscriber terminal;
  
  
  Possibility of dynamically redistributing channels’ capacity by destination at the expense of increasing the minimal CIR. This ideally suits the tasks of Internet dedicated channel connection and LAN integration;
• Possibility of connecting the subscribers of the PeterStar Frame Relay network to various external trading and information systems (the Internet, stock exchanges and e-commerce) over virtual channels;
  
  
  Cost of FR-based solutions is 20-30% below that for the same project implemented using dedicated channels. This is achieved by reducing the number of terminals and using routing equipment, which is less expensive.

Advantages when entering the Internet:

• No per minute payment for traffic is charged, and you may stay in the Internet as long as you want with no risk of exhausting the limit of money allocated for this purpose;
• Reliability of this connection type is much higher compared to that of modem-based connections due to information represented in the Frame Relay network in the digital form, while the analog signal from your modem’s output, when transmitted over big distances, attenuates and requires further amplification. Along with the signal noise is amplified as well, resulting in errors occurring on the receiving side at the signal analog-digital conversion;
• Monthly rental for Internet access via the Frame Relay network is lower than that for connection via a dedicated channel at a similar AR.

Connection Procedure

To be connected to the PeterStar Frame Relay network you pay under the relevant agreement for the installation of subscriber terminals and organization of ports to access the FR network (such port represents the subscriber terminal’s interface with the Frame Relay switch. The required number of ports is equal to the number of subscriber terminals being installed). Virtual channels are arranged for you free of charge.

One of information services available via the PeterStar Frame Relay network is the connection to the global Internet.

Internet connection by Frame Relay provides for a flexible pricing system, i.e. a customer is always able to choose a solution suiting him (her) in terms of both its price and its data rate. The service price is determined by the combination of the virtual channel’s CIR and the subscriber terminal’s AR. In this case a possibility always exists of increasing the both parameters in steps.

PeterStar Frame Relay Network Capabilities

Coverage

Since the beginning of the service provision in 1997 the geography of the PeterStar Frame Relay network has considerably expanded. Today a possibility of connecting to the PeterStar Frame Relay network is available on the whole territory of St. Petersburg and the nearest suburbs such as Kronshtadt, Zelenogorsk, Sestroretsk, Lomonosov, Kolpino, Krasnoye Selo, and Petrodvorets.

Data Rate

Based on ATM technology, the basic backbone of the PeterStar Frame Relay network provides data rates of 155 Mbps between ATM switches. PeterStar provides such a network load level that the sum of CIR’s on any segment of the network doesn’t exceed 50% of the capacity of the relevant connections.

Speeds of Frame Relay network access channels on the segment from the Subscriber’s premises to the network node (AR) may be set within a range of 19.2 to 2048 Kbps; values from 0 to 0.8*AR Kbps may be set for CIR’s.

Services

Basic applications of the PeterStar Frame Relay network are as follows:

• Corporate network construction:
  The Frame Relay network is an extremely convenient base for constructing computer corporate networks - from simply combining “office-warehouse” LAN’s to united corporate networks of enterprises to combine offices, affiliates and warehouses, providing Internet access and counting over 100 terminals
• Access to information resources:

At present 3 groups of information resources can be identified, the subscribers of the PeterStar Frame Relay network can be connected to:

1. Companies – operators of international Frame Relay network:

• Finnet
• Teleross
• MTU-Inform
• Golden Line

2. Information and financial systems:

• St. Petersburg Monetary Exchange
• Exchange “Sanct-Petersburg”
• Russian Trading System
• Regional Informational Pharmaceutical Network “Rosbi-Inform”
• Moscow Interbank Monetary Exchange

• Possibility of organizing several virtual channels on one physical subscriber terminal
• Possibility of optimally using the capacity of digital subscriber terminals of a corporate network and subscriber routers
• Possibility of transmitting voice and data between subscriber terminals of the PeterStar Frame Relay network
• High level of security compared to the Internet
• Cost of FR-based solutions is 20-30% below that for the same project implemented using dedicated channels. This is achieved by reducing the number of terminals and using routing equipment, which is less expensive
• Profitable tariffs for international channel organization
• Low tariffs for routing services