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Posts about Networking software

Border Gateway Protocol (BGP)

Networking software Layer 3 IP Routing Border Gateway Protocol (BGP)

DC-BGP is a portable source code implementation of the Border Gateway Protocol (BGP) protocol designed explicitly to support the scalability, availability and functional requirements of OEMs building devices for next generation networks.

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Spanning Tree Protocol (STP)

Networking software Layer 2 Ethernet

Ethernet frames may be broadcast through the network with a header that does not contain a TTL. If the topology contains a loop, this leads to a broadcast storm with frames being broadcast indefinitely. The IEEE 802.1D Spanning Tree Protocol (STP) prevents bridge loops and the broadcast storms that result from them by disabling links and leaving a single active path between two network nodes. STP also facilitates a redundant link that is automatically instantiated in the event a primary link fails. STP variants include Rapid Spanning Tree Protocol (RSTP) for rapid convergence and Multiple Spanning Tree Protocol (MSTP) that enables load-balancing across different groups of VLANs.

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Link Layer Discovery Protocol (LLDP)

Networking software Layer 2 Ethernet

Specified within the IEEE 802.1AB standard, the Link Layer Discovery Protocol (LLDP) is used by network devices in Ethernet segments and networks for advertising their identity, capabilities, and neighbors. The Link Layer Discovery Protocol may be used as a component in network management and monitoring applications, such as data center bridging. Providing a mechanism for endpoints to exchange configuration information, the implementation of LLDP is critical for preventing configuration mismatches.

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Link Aggregation Control Protocol

Networking software Layer 2 Ethernet

Defined within IEEE 802.3ad, the Link Aggregation Control Protocol (LACP) is a standards-based method to control the bundling of several physical network links together to form a logical channel for increased bandwidth and redundancy purposes. LACP enables a network device to negotiate an automatic bundling of links by sending LACP packets to the peer. By sending specialized frames down links with the protocol enabled, LACP dynamically configures these peers and failover occurs automatically when a link fails.

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Ethernet Ring Protection Switching

Networking software Layer 2 Ethernet

In network operator infrastructures around the globe, cost-effective optical Ethernet services are increasingly replacing classic SONET/SDH technology in the metro/access network layers and beyond. Truly substituting SONET or Ethernet, however, demands replicating the resilient ring topologies to reduce the number of links required in multipoint configurations while also matching the sub 50ms automatic protection switching timeframes required of the attached devices without an underlying SONET/SDN transport layer in place.

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Optical Transport Networks (OTN)

Networking software RSVP-TE (ReSerVation Protocol) IP Routing OTN (Optical Transport Network)

Operators of carrier and service provider networks are always under immense pressure to reduce operational and capital expenditures. As if that pressure weren't enough, they must also contend with preserving legacy technologies while addressing the continuous shift in traffic type (most notable: the shift from circuit to packet traffic). The ITU's Optical Transport Network (OTN) recommendation provides a network-wide framework that truly delivers on the carrier requirements for reduced costs, greater flexibility, and increased efficiencies.

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What is Path Computation Element (PCE)?

Networking software SDN (Software Defined Networking) PCE (Path Computational Element) MPLS (Multi-Protocol Label Switching)

Path Computation Element (PCE) is a device that computes paths on behalf of the nodes in the network. It can be a router, a COTS server, part of the OSS, or a virtualized entity running in a cloud. When a network node needs a path for an LSP, it makes a request to the PCE using the PCE protocol (PCEP). The PCE has access to topology information for the entire network and uses this in path computations.

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What is Session Initiation Protocol (SIP)?

VoIP (Voice over Internet Protocol) Networking software SIP (Session Initiation Protocol)

Session Initiation Protocol (SIP) is used to signal and control interactive communication sessions. The uses for such sessions include voice, video, chat and instant messaging, as well as interactive games and virtual reality. The SIP protocol is increasingly being used to provide Voice over IP, Presence and Instant Messaging in Next Generation Networks, and being mandated for many new applications, including 3G telephony.

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What is Border Gateway Protocol (BGP)?

Networking software Layer 3 IP Routing Border Gateway Protocol (BGP)

The Border Gateway Protocol (BGP) is one of a family of IP Routing protocols, and is an Exterior Gateway Protocol (EGP) designed to distribute routing information between ASs.

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What is Internet Group Management Protocol (IGMP) / Multicast Listener Discovery (MLD)?

Networking software Layer 3 IGMP/MLD

Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) are the Multicast Group Membership Discovery (MGMD) protocols. They are essentially the same protocol, with IGMP used for IPv4 multicast groups and MLD used for IPv6 multicast groups. These protocols are used between end systems (often desktops) and the multicast router to request data for a given multicast group.There have been three versions of IGMP, and two versions of MLD. IGMPv2 is equivalent in function to MLDv1 and IGMPv3 is equivalent to MLDv2. All versions of IGMP/MLD are widely deployed. For example, an IGMP/MLD host implementation is included in some operating systems, and the following table shows the level of support for IGMP in Microsoft Windows hosts.

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What is Label Distribution Protocol (LDP)?

Networking software MPLS (Multi-Protocol Label Switching) Label Distribution Protocol (LDP)

The Label Distribution Protocol (LDP) is used to establish MPLS transport LSPs when traffic engineering is not required. It establishes LSPs that follow the existing IP routing table, and is particularly well suited for establishing a full mesh of LSPs between all of the routers on the network.

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What is MPLS and GMPLS?

Networking software MPLS (Multi-Protocol Label Switching)

Multi-Protocol Label Switching (MPLS) provides a mechanism for forwarding packets for any network protocol. It was originally developed in the late 1990s to provide faster packet forwarding for IP routers (see RFC 3031). Since then its capabilities have expanded massively, for example to support service creation (VPNs), traffic engineering, network convergence, and increased resiliency.

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What is MPLS-Transport Profile (MPLS-TP)?

Networking software MPLS (Multi-Protocol Label Switching)

Transport networks have traditionally been built using Time Division Multiplexed (TDM) SONET/SDH devices. These are becoming ineffective and costly in today's packet-oriented world, which is driving service providers to deploy more packet-based equipment in their transport networks.

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What is Open Shortest Path First (OSPF)?

Networking software Layer 3 IP Routing Open Shortest Path First (OSPF)

The OSPF (Open Shortest Path First) protocol is one of a family of IP Routing protocols, and is an Interior Gateway Protocol (IGP) for the Internet, used to distribute IP routing information throughout a single Autonomous System (AS) in an IP network.

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What is Protocol Independent Multicast (PIM)?

Networking software Layer 3 IP Routing Protocol Independent Multicast (PIM)

Protocol Independent Multicast (PIM) is a collection of multicast routing protocols, each optimized for a different environment. There are two main PIM protocols, PIM Sparse Mode and PIM Dense Mode. A third PIM protocol, Bi-directional PIM, is less widely used.

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What is Routing Information Protocol (RIP)?

Networking software Layer 3 IP Routing Routing Information Protocol (RIP)

The Routing Information Protocol (RIP) is one of a family of IP Routing protocols, and is an Interior Gateway Protocol (IGP) designed to distribute routing information within an Autonomous System (AS).

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What is RSVP-TE?

Networking software RSVP-TE (ReSerVation Protocol) MPLS (Multi-Protocol Label Switching)

RSVP-TE is used to establish MPLS transport LSPs when there are traffic engineering requirements. It is mainly used to provide QoS and load balancing across the network core, and includes the ability to control all-optical networks.

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What is IP routing?

Networking software Layer 3 IP (Internet Protocol) IP Routing

IP Routing is an umbrella term for the set of protocols that determine the path that data follows in order to travel across multiple networks from its source to its destination. Data is routed from its source to its destination through a series of routers, and across multiple networks. The IP Routing protocols enable routers to build up a forwarding table that correlates final destinations with next hop addresses.

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What is Intermediate System - Intermediate System (IS-IS)?

Networking software Layer 3 IP Routing

The IS-IS (Intermediate System - Intermediate System) protocol is one of a family of IP Routing protocols, and is an Interior Gateway Protocol (IGP) for the Internet, used to distribute IP routing information throughout a single Autonomous System (AS) in an IP network.

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What is multicast IP routing?

Networking software Layer 3 IP Routing

Multicast IP Routing protocols are used to distribute data (for example, audio/video streaming broadcasts) to multiple recipients. Using multicast, a source can send a single copy of data to a single multicast address, which is then distributed to an entire group of recipients.

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What is Optical Transport Network (OTN)?

Networking software MPLS (Multi-Protocol Label Switching) OTN (Optical Transport Network)

The ITU's Optical Transport Network (OTN), as defined by recommendation G.709, provides a network-wide framework that adds SONET/SDH-like features to WDM equipment (also known as Wavelength Switched Optical Network equipment, or WSON equipment). It creates a transparent, hierarchical network designed for use on both WDM/WSON devices and TDM devices. Two switching layers are formed (TDM and WSON) and functions of transport, multiplexing, routing, management, supervision, and survivability are defined.

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Portable Layer 2 software stacks datasheet

Datasheets Networking software Layer 2

Metaswitch's Layer 2 product suite provides a full range of protocols enabling OEMs to deliver solutions in Carrier Ethernet, Mobile Backhaul and Data Center environments. The Layer 2 product suite can be used stand-alone with 3rd party software or as part of our integrated control plane solution.

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Layer-2 and Layer-3 VPNs datasheet

Datasheets Networking software Layer 3 MPLS (Multi-Protocol Label Switching) VPN (Virtual Private Network) Layer 2

Industry leading portable MPLS and IP routing solutions from Metaswitch's network technologies provide all the protocols and toolkits needed for communications equipment vendors building Layer 2 and Lauer 3 virtual private network (VPN) services.

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SNAP-IX documentation

Networking software Layer 2 documentation SNAP-IX

SNAP-IX is the world's leading product for SNA and SNA/IP communications to mainframes and is deployed in 100,000s of installations worldwide. In particular, it supports Enterprise Extender connections, which are fast becoming the most popular way to support legacy SNA applications over an IP network.

Read the SNAP-IX documentation

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SNAP-IX

Networking software Layer 3 Layer 2 SNAP-IX

SNAP-IX is the world's leading product for SNA and SNA/IP communications to mainframes and is deployed in 100,000s of installations worldwide. In particular, it supports Enterprise Extender connections, which are fast becoming the most popular way to support legacy SNA applications over an IP network.

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