Category Archives: Routing

QoS: Bandwidth, Delay, Jitter, and Loss Explained

There are obstacles that can cause a breach or delay even loss of communication over the network. As the internet grows beyond prediction, the modern networks support for traffic is getting beyond the traditional data types and becomes increasingly difficult to maintain. Communication over the network involves email, file sharing, or web traffic and increasingly, data networks share… Read More »

Quality Of Service QOS – Explained with Example

Understanding QoS The Provision of sufficient Quality of Service (QoS) across IP networks has become a necessary criterion in enterprise IT infrastructure of the future. It has been deemed a necessity especially for voice and the streaming of video over the network. Let us look at why the quality of service (QoS) is vital in today’s and future… Read More »

Multi-Protocol Label Switching (MPLS) Explained with Examples

What is Multi-Protocol Label Switching (MPLS)? Multiprotocol Label Switching (MPLS) is a type of network data traffic technique which carries data from one network device to the next using short path labels instead of long and complex network router lookups in a routing table. Ok…simply said; MPLS is best summarized as a middleman protocol between Layer 2 and… Read More »

Cisco Dynamic Trunking Protocol (DTP) Explained

 Understanding Dynamic Trunking Protocol (DTP) The Dynamic Trunking Protocol (DTP) is a Cisco proprietary protocol that is automatically enabled on Catalyst 2960 and Catalyst 3560 Series switches. DTP is used to negotiate forming a trunk link between two or more Cisco devices before actually forming the trunk connection. The main benefit of DTP is to increase traffic on a… Read More »

RIP Routing Loop Explained

  Split Horizon, Route Poisoning and Holddown Explained Split Horizon RIP as a distance vector protocols are also susceptible to routing loops (network problem which enables a data packet to continually being routed through the same routers over and over. The data packets continue to be routed within the network in an endless circle.). Split horizon is one… Read More »

DHCP Snooping Explained

WHAT IS DHCP SNOOPING? The Dynamic Host Configuration Protocol (DHCP) allocates IP addresses dynamically, it leases addresses to connected devices and the addresses can be reused when no longer needed. All connected Hosts and end devices that require IP addresses obtained through DHCP must communicate with a DHCP server across the LAN. DHCP snooping acts like a firewall… Read More »

What is Link Layer Discovery Protocol (LLDP)?

  Understanding LLDP and LLDP-MED The smooth running operation of the various networking devices in a LAN or switched network means that all protocols and applications are enabled and that all devices and are configured correctly. However, the larger the network gets, the more difficult it will be for the network administrator to control, manage and sort out configuration problems.… Read More »

What is Syslog? Syslog Explained.

System Message Logging – SYSLOG Modern network devices have advanced from simple transmitting of messages (email.documents, multimedia etc), network devices like Cisco routers and switches provide the features for network administrators to reading system messages from their internal buffer about network situation at a particular time. The way do this is by using Syslog server. Cisco network devices (Routers… Read More »

What is Stateless DHCPv6? Explained with Examples

Stateless DHCPv6 Server and Client Auto-configuration. During the SLAAC process, the client receives information to create an IPv6 global unicast address. This includes the default gateway information from the source IPv6 address in the RA message, which is the link-local address of the router. A stateless DHCPv6 server can be used to provide information that might not be… Read More »

What is Stateful DHCPv6: DHCPv6 Autoconfiguration- Server and Client.

How to Configure DHCPV6 Stateful Auto-configuration (Server and Client ) DHCPv6 Server command Terms: IPv6 dhcp pool: This command creates a pool and enters the router in DHCPv6 configuration mode. Address : This command is used to indicate the pool of addresses to be allocated by the server. The lifetime option indicates the valid and preferred lease times in seconds.… Read More »