For businesses in particular, the high availability of data connections presents an essential requirement of the network components. LANCOM Systems devices provide various mechanisms for securing data transfer as a backup solution:
- Various WAN interfaces (DSL, ISDN, UMTS) enable data transfer over a second physical medium if the primary WAN interface is disturbed or fails.
- In order to provide protection from failure of an Internet provider's network, different Internet access accounts can be configured with Multi-PPoE.
- Two or more VPN gateways in a network can share the VPN tunnels required, thus keeping data traffic alive even in cases of temporary failure of a VPN end point.
- VRRP can now also be used to implement a sophisticated backup system for protection against router hardware failure. Two or more routers are installed in a network, one of which can replace the other in case of device failure.
- In addition to normal VRRP, LANCOM devices can link the backup event triggering function to the availability of a data connection. With this additional feature, LANCOM devices with more than one WAN interface (e.g. DSL and ISDN interface) can be implemented flexibly in backup solutions. The backup event is triggered for example, when the default route is no longer available via the DSL interface. The device's ISDN interface can take its place further along in the backup chain should the the backup router also fail.