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IP Infusion is the leading provider of integrated IPv4 and IPv6 unicast routing protocols in the market. The ZebOS® Network Platform supports the most current drafts and standards for both IPv4 and IPv6 versions of OSPF, BGP, IS-IS and RIP. In addition to the standard IPv4 and IPv6 routing protocols, ZebOS offers Virtual Routing (VR) support, Traffic Engineering (TE) extensions, and a Constrained Shortest Path First (CSPF) topology support for the Open Shortest Path First (OSPF) and Intermediate System-to-Intermediate System (IS-IS) protocol modules.
IP Infusion's newest OSPF module also supports these important features:
- OSPF Link-Local Signaling
- OSPF Restart Signaling
- Graceful OSPF Restart
- Authentication/Confidentiality for OSPFv3
- Traffic Engineering Extensions (draft-katz-yeung-ospf-traffic-05.txt)
- Alternative Implementation of OSPF Area Border Routers
- Alternative ABR Implementation (draft-ietf-ospf-abr-alt.txt)
- OSPF Not-So-Stubby-Area (NSSA) Option
ZebOS also sustains its own dual-stack TCP/IP Module that provides for simultaneous use of IPv4 and IPv6 in a variety of configurations. IP Infusion’s TCP/IP stack is ideal for real-time operating system vendors that require dual-stack and virtual routing extensions for their products.
Unicast Routing Protocols
RIP – The Routing Information Protocol (RIPv2) is one of the most commonly used interior gateway protocols (IGP) used for routing on internal IPv4 networks, and to a lesser extent, networks connected to the Internet. RIP employs a distributed variant of the Bellman-Ford algorithm to provide distance vector routing capabilities. It also supports subnet information, thus allowing Classless Inter-domain Routing (CIDR).
RIPng – The Routing Information Protocol – Next Generation is an extension to the RIP protocol that provides support for IPv6 networks.
BGP4 – The Border Gateway Protocol (BGP) is an inter-autonomous system routing protocol and is the core routing protocol used on the Internet. It works by maintaining a table of IP networks, or prefixes, which designate network reachability among Autonomous Systems (AS). BGP is a path- vector protocol that makes routing decisions based on path, network policies, and/or rule sets.
BGP4+ – contains extensions to BGP4 to enable it to carry routing information for multiple network layer protocols.
IS-IS – The Intermediate System-Intermediate System (IS-IS) protocol is a link-state routing protocol designed to be run internally on a single autonomous system. IS-IS routers maintain identical databases that describe the autonomous system's topology. A routing table is calculated from the database by constructing a shortest- path tree.
OSPF – The Open Shortest Path First (OSPFv2) protocol is a link-state routing protocol designed to be run internally on a single autonomous IPv4 system. Each router designated to run OSPF maintains an identical database describing the autonomous system's topology. From this database, a routing table is calculated by constructing a shortest- path tree.
OSPFv3 – provides modifications to OSPF to support IPv6. The protocol also leaves room to make it extensible for other address families.
CSPF – The Constrained Shortest Path First protocol is an extension to the shortest-path algorithms used in the OSPF and IS-IS routing protocols. CSPF calculates the shortest paths based on multiple constraints, after pruning paths that do not meet the constraint criteria. In the Internet, CSPF works with Traffic Engineering (TE) information that is transported by routing protocols, and is widely used in Multi-protocol Label Switching-Traffic Engineered (MPLS-TE) networks.
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