Switching: VLAN’s
What is a LAN Switch? Logically, we really need to start with the question, what is a LAN switch? A LAN switch is a OSI model Layer 2 device,…
Category: CCNA
Configuring SNMP on Switches, and Syslog
Introduction This article follows up on last month’s article, Configuring SNMP in Cisco Routers. We’ll talk briefly about SNMP and switches, and also about Syslog. previous article Configuring SNMP…
Configuring SNMP in Cisco Routers
Introduction From doing this network management work, it is apparent that Cisco has been adding a little here, a little there, to the SNMP capabilities of the routers and…
Quality of Service, Part III
Introduction This month we continue looking at Quality of Service (QoS) in Cisco devices. This article looks at Traffic Shaping Policy Routing QoS Policy Propagation via BGP (QPPB) Traffic…
Quality of Service — Part II
In this article, we’ll look at the following topics: IP Precedence bits Random Early Detection (RED) Committed Access Rate (CAR) Some Cisco QoS Links The IP Precedence bits allow us…
QoS (Quality of Service) Features–Part I
What Is QoS? QoS stands for Quality of Service. The term is being used by Cisco to refer to IP-based features that allow specification and delivery of services much…
OSPF — Part III
OSPF Network Type Please also read the previous article OSPF and Route Summarization– Part II OSPF has three network types: Broadcast networks (Ethernet, Token Ring, FDDI) Nonbroadcast multiaccess…
OSPF and Route Summarization– Part II
This day, we’ll see how to think of summarizable address blocks in a slightly different way. And then we’ll see how this all applies to configuring route summarization with OSPF….
Introducing OSPF– Part I
Introduction The OSPF routing protocol is playing an increasingly important role in modern networks. It is a multi-vendor standard. We’ll take a look at OSPF basics in this article….
How to Configuring BGP
Recall that an IGP is an Internal Gateway Protocol: whatever your routers speak “at home” — probably RIP, IGRP, EIGRP, or OSPF. We saw that one of the usual reasons…