 |
|
Outbound Load-Balancing
- With real-With real-time load balancing and Optimum Route algorithmic, AscenLink's intelligent router engine directs each session or connection to the best available link. It also supports policy-based routing, persistent routing, and traffic scheduling to effectively translate your business policy into your network policy. AscenLink supports non-NAT mode to support Intranet traffic load balancing for either private leased lines, or MPLS-based VPN.
Fault tolerance
- The network health check engine monitors the network around the clock and provides fail-over/fail-back functions.
- Failover: Whenever a link fails or is unstable, traffic is automatically re-routed to other healthy and available links to ensure uninterrupted connectivity.
- Failback: When the faulty link resumes functioning,on-line traffic is redistributed across all available connections to optimize the networks performance.
Inbound Load-Balancing
- When external users request the Web server's IP address, SwiftDNS dynamically returns DNS responses according to the link quality and load-balances incoming traffic across the different ISP lines.
Multihoming
- Health check and SwiftDNS guarantee uninterrupted availability through dynamic DNS reconfiguration, which ensures that a response with a valid IP address is returned to an external user's request for a web server's IP address. AscenLink's Multi-homing system supports both built-in DNS or DNS relay to your existing DNS server.
- Policy-based bandwidth management
- By filtering out unexpected traffic, AscenLink optimizes bandwidth utilization and ensures the best transmission quality for the transfer of mission-critical data. Built-in QoS function in AscenLink has the advantage of integreated bandwidth management across multiple WAN links.
- >
- DoS Protection
- AscenLink 's LAN, WAN and DMZ ports are all equipped with protection against DoS attacks such as SYN Flood and ICMP Vulnerability. AscenLink's connection limit function, which limits rapid connection build-up due to virus or intrusion attacks, can also be used to contain rapid spread of virus/intrusion attacks.
- Policy-Based Access Control List
- Firewall access policies, are user definable and can be, based on source, destination, type of service, and IP address. They can be implemented in conjunction with a traffic scheduling policy. AscenLink's built-in firewall supports various Layer-7 protocols such as P2P, IM, and H.323 for better network management.
- Web Caching
- AscenLink® kann den Zugriff aufs Internet beschleunigen, indem der ganze Web-Verkehr über einen Cache/Proxy Server geleitet wird. Dies passiert transparent, ohne den Einsatz von teuren Layer 4 Switches, WCCP (Web Cache Communication Protocol) Routern, oder der entsprechenden Konfiguration des Clients.
- High Availability
- AscenLink supports a active/passive deployment for a timely contingency backup in case of hardware failure. In the case of a hardware failure in the active unit, the passive unit will take over immediately to ensure continuous function. AscenLink also supports port-level HA to enable all the switches connected to AscenLink be dual-deployed for complete HA deployment for the entire network topology.
- Tunnel Routing
- Using AscenLink's advanced tunnel routing technology between two sites, one can create VPN connections across the two sites over multiple physical WAN links, achieving the benefits of VPN Load-banlance and Fault Tolerance across multiple WANs. AscenLink tunnel routing technology further enable customers to cost-effectively expand VPN and Intranet connectivity via bonding of multiple, less costly broadband lines.
- Comprehensive Monitoring and Reporting
- AscenLink provides comprehensive log files for each major function, allowing you to check on network statistics or network bandwidth utilization, at a glance. The built-in real-time monitoring system provides short-term (by sec/min/hr) and long-term (by day/month) statistics for MIS personnel to be on top of the overall network status
