This article gives an introduction to NAT – Network Address Translation, explains why NAT is required, gives an introduction to NAT Traversal (required for certain streams like SIP/H.323) and lists the techniques available for doing the NAT Traversal.
This article gives a short introduction to Syslog and Syslog server, how they help in monitoring of the network devices by storing and retrieving the logs generated by the network devices in a data base format, how messages are logged in a Syslog server, filtering rules in a Syslog server, options for alarm generation in Syslog server and the disadvantages of Syslog server.
This article explores the options available for high availability in network switches at the device level, operating system software level, Quality of Service and configuration changes, notification level.
This article eloborates on what is port mirroring, what are its applications, some of the features of port mirroring, advantages and dis-advantages of port mirroring in network switches. We also take a look in to the alternative of port mirroring called In-line Network taps, their advantages and dis-advantages.
This article presents a small introduction to LDAP – Lightweight Directory Access Protocol – explaining what it is and why you need to implement LDAP directory in an enterprise environment. It also elucidates the advantages of LDAP implementation for an organization.
This article discusses about VLAN’s, why they are required, types of VLAN, IEEE 802.11q tagging, what is IEEE 802.10 (FDDI) & how it inter-operates with Ethernet VLAN’s, need for Inter-VLAN routing , how a VTP (Virtual Trunk Protocol) automates VLAN process & how IEEE 802.1D is used to set up QOS in VLAN’s.
This article is to explain what is IPv6, how does it differ from IPV4, what was the necessity to come up with IPv6, a basic IPv6 address and its compositions, some conventions of IPv6, some features of IPv6 and also the advantages of using IPv6 over IPv4.
This article is to introduce the Infiniband technology (which is commonly used in High Performance Computing for Inter Process Communication to enable server consolidation) and discuss the advantages of the Infiniband technology. We also take a look at the IBoE (Infiniband over Ethernet) technology which hopes to achieve IPC Consolidation.
This article is to give and introduction to the technologies that are up against each other to provide high performance computing. We look at Ethernet, Fiber channel, Infiniband and the various consolidations that are proposed. We also take a peek at iSCSI.
This article gives an overview of the most popular active components in an IP Network – The Network Switches and Routers. This article discusses why they are exciting in a network, what is their use, how and where they are deployed and an outline of the features supported by them.