VRRP


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VRRP

(Virtual Router Redundancy Protocol) A protocol for switching to a backup router in the case of failure. Two or more routers are set up with VRRP, and one is elected the "master." The master router continuously sends advertisement packets to the backups, and if the advertisements stop, one of the backup routers becomes the master. All routers share a "virtual IP" address, so they are all seen as one address. VRRP can also be used for load sharing. See HSRP.
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- Fully compatible with backbone network, supports advanced L3 management for interconnecting multiple LANs on railway controlling network level: IP/VLAN routing, RIP, OSPF, VRRP, NMS system for individual component monitoring
The combination of Ethernet or industrial Ethernet, TCP/IP family of protocols and other auxiliary protocols (RSTP, VRRP, OSPF and MPLS) are recommended in the Smart Grids because it best meets the strict requirements (availability and reliability) for the design of industrial networks.
Enterprise-class protocols include BGP, OSPF and VRRP+, a Sarian patented technology that builds upon the popular VRRP fail-over standard which provides true auto sensing, auto failure and auto recovery of any line drop.
* Support of virtual redundant router protocol (VRRP), allowing a single gateway address to be shared between several routers and providing multiple WAN backup paths, and support for OSPF, BGP and RIP2 complex network applications.
New routing protocol support includes Virtual Redundant Routing Protocol (VRRP) and Q-in-Q VLAN Tunneling.
NGC 2.2 adds one new protocol, VRRP (virtual routing redundancy protocol), and fifteen new CLI (command line interface) products to the GateD product suite.
The switch also has Rapid spanning tree, link aggregation, VRRP and jumbo frame support.--Performance Technologies
The fail-over is automatic with BGP or one of the hot standby protocols (HSRP and VRRP), so this redundancy comes at very little cost.
Features include support for the open shortest path first (OSPF) routing protocol and the virtual router redundancy protocol (VRRP), improved fail-over capabilities between remote sites and enhanced bandwidth management and priority queuing services.
The NetIron 1500 offers full software and hardware redundancy through a distributed switching architecture with redundant management and routing processor modules, SONET Automatic Protection Switching, N+1 load-sharing and hot swappable AC and DC power supply options, hot swappable interface modules as well as support for the IETF Virtual Router Redundancy Protocol (VRRP) and the Foundry Standby Routing Protocol (FSRP) - providing full router redundancy.