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Key Benefits ·
Speeds up network testing of the network application, equipment or the
service. · Patent-pending wire
speed emulations (1.4 million pps/port/direction) without missing any
packet.
Since Network Emulator works at the Ethernet level, it does not require any change on the application servers or on the network configurations. Network Emulator starts forwarding the traffic between its two ports soon after it is powered on. The user only needs to setup the management interface's IP address. This can be accomplished via the Web interface by connecting to the system's factory shipped IP address.
In-line management is a feature of having the management interface on any port and in-line with the test traffic. This feature allows users to connect the network emulator between their workstations and the device under test without requiring an additional management network cable. In-line management is available on all Network Emulator models.
Network Emulator has extensive XML based packet filters for Ethernet, IP, IPV6, TCP and UDP packet filtering. Filters allow users to pick significant packets to expose to network impairments. They can be logically combined with AND, OR and NOT operators to create complex filter sets. XML based packet filtering allows users to define any type of packet filter in an XML file. Newly defined filters can be used instantly in the web based filters page. This filtering method provides capability of easily defining packet filters for new implementations such as IPTV, iSCSI, IPV6, 4G. In addition, Custom Filters provides filtering anywhere inside the packet including payload for deep packet inspection. XML based filters can easily be created by editing the configuration file. Below shows a iSCSI filter for filtering iSCSI messages:
Network Emulator's IPV6 capabilities enable users to perform detailed IPV6 emulation tests. IPV6 filters such as "traffic class", "flow label", "hop limit" allow picking specific IPV6 packets. Source and destination addresses can be either single or a range that covers block of addresses. Non-consecutive addresses can also be specified by using multiple filters. "next header" filter parses all available cascaded headers till it finds a match. In addition, "fragmentation ID" filter can be used to filter all or some of the specific fragmented packets. Simena also provides extensive MPLS support in all network emulator and traffic generator products. This feature help users to filter, modify, inject MPLS and stacked MPLS packets. Users also can create impairments in MPLS traffic. MPLS is available as part of the standard software without any additional cost. Multiple Link (Simultaneous) Emulations Network Emulator has patent-pending technology that allows users to emulate up to 16 different network characteristics simultaneously through the same pair of Ethernet interfaces. By the help of filters assigned to emulation instances, users can divide the traffic into several groups and apply different network impairments on them. This capability does not require any change in the network connections since all of the traffic goes through the same network interfaces. Network Emulator allows users to modify data packets in real-time. Any protocol field can be modified with user selectable data. It is possible to optionally recompute the checksums. With custom packet modifications, it is even possible to modify anywhere inside the packet, e.g. payloads or certain fields in proprietary protocols. Packet modifications can be utilized with filtering and emulations at the same time.
Network Emulator also provides emulating either partially or fully meshed networks. As it is shown in the diagram above, users can create any type of unidirectional virtual connections among all available Ethernet interfaces. Each virtual mesh connection is associated with filters to determine which packets should be sent to which virtual connections. This would give the ultimate flexibility to create any type of connection topology, ring, mesh, star, or fully connected. Any combination of impairments can be assigned to virtual mesh connections. Network statistics can be collected for each individual virtual connection. G.1050 is an ITU standard on modeling IP networks in terms of network conditions and impairments. Simena’s Network Emulators provide easy to use comprehensive web based user interface to define, customize and run G.1050 based network emulations. Simena’s G.1050 implementation is based on latest 11/2007 revision. Simena Network Emulators can be used for impairing MPEG based video streams. As Simena network emulator dynamically examines every byte in packets, users can easily impair specific video packet such as I, P, B frames. Complete list of impairments can be applied to video streams bidirectionaly or unidirectionaly, as well as with detailed packet filters.
Users can also easily display real-time throughput on each port in both tabular or graphical format. Throughput numbers are very accurate as they are collected from the Network Emulator's kernel application. In other words, while the emulation is heavily taking place the throughput numbers would still be very reliable. Tabular statistics can be saved as a CSV file at the user workstations (PC. Linux, Solaris, Mac) for further analysis. Users can specify the sampling rate and number of samples for saving the statistics. Although Network Emulator is very easy to learn and use it provides an online user guide for complex emulations and administration tasks. Hypertext index lets the user navigate very easily. Convenient pop-up window can be used as a desktop reference. Network Emulator provides easy to use Web based Graphical User Interface (GUI) which lets the users access it from anywhere in the network. Clear and easy navigation menu enables them to start using the unit in a minute. The GUI also provides complete management functions such as setting networking parameters, Ethernet interface speed and duplex mode, date and time, user password, and rebooting the Network Emulator remotely. Initial setup of the Network Emulator can also be accomplished by the GUI by accessing the unit's factory default IP address. For more information or 15-day free evaluation of Network Emulator please contact us. |
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