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Transworld Associates is a Tier-1 provider based in Pakistan serving as a backbone for IP connectivity in Pakistan. It is a joint-venture between Orastar Limited and the Oman based OMZEST Group. [1] Transworld owns and operates the 1,300 km submarine communications cable named TW1 that links Pakistan to the United Arab Emirates and Oman.
A network switch is a multiport network bridge that uses MAC addresses to forward data at the data link layer (layer 2) of the OSI model. Some switches can also forward data at the network layer (layer 3) by additionally incorporating routing functionality. Such switches are commonly known as layer-3 switches or multilayer switches. [2]
The Cisco Nexus series switches are modular and fixed port network switches designed for the data center. Cisco Systems introduced the Nexus Series of switches on January 28, 2008. The first chassis in the Nexus 7000 family is a 10-slot chassis with two supervisor engine slots and eight I/O module slots at the front, as well as five crossbar ...
In August 2011, Brocade introduced two additional products for this family. The Brocade VDX 6730 Switch is a 10 GbE switch which can also use FCoE to bridge VCS Fabrics with Fibre Channel SAN fabrics. The Brocade VDX 6710 Switch is an entry-level 1/10 GbE switch which enables legacy 1 GbE servers to connect to VCS Fabrics as well as traditional ...
The core network provides high-speed, highly redundant forwarding services to move packets between distribution-layer devices in different regions of the network. Core switches and routers are usually the most powerful, in terms of raw forwarding power, in the enterprise; core network devices manage the highest-speed connections, such as 10 ...
An SDN controller serves as the core of an SDN network, managing flow controls based on protocols such as OpenFlow, and relaying communications between applications and network devices. [18] In 2012, HP introduced the Virtual Application Networks (VAN) SDN OpenFlow controller, which is available in a software format. [ 19 ]
The fabric is a network of Fibre Channel devices which allows many-to-many communication, device name lookup, security, and redundancy. FC switches implement zoning, a mechanism that disables unwanted traffic between certain fabric nodes. Fibre Channel switches may be deployed one at a time or in larger multi-switch configurations.
Modular switches also support additional line cards which can provide new functions to the switch that would previously have been unavailable, such as a firewall. [4] An example of a modular computer network switch is the Cisco Catalyst 6500 , which can be configured with up to 13 slots, and supports connections from RJ45 to QSFP+.