Ccna

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 …

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 …

Routing is used for the process of taking a packet from a device and sending it through a network to another device on a different network. If your network does …

What is Network Address Translation? The new Network Address Translation (NAT) functionality in the Cisco routers allows privately addressed networks to connect …

The acronym RMON stands for Remote Network Monitoring. The RMON MIB documents are SNMP standards documents specifying information that an RMON agent can collect …

Last article we discussed route caching, the loopback interface, SNMP configuration, time and NTP, and using syslog to capture router console messages. This …

Route Caching First, more details concerning interfaces. If a WAN interface is less than 256K, you may want to add “no ip route-cache” to make more buffers …

What Is Cisco Discovery Protocol? Cisco Discovery Protocol, also known as CDP, is something Cisco has quietly added to its entire product line. If you haven’t …

iBGP Scaling the iBGP mesh Two methods: BGP Confederations BGP Route Reflectors BGP Confederations Method to subdivide a single AS into multiple, internal …

Multi-Exit Discriminator (MED) Non-transitive Used to convey the relative preference of entry points Influences best path selection Comparable if paths are from …

BGP What Why Who When Where BGP version 4 RFC 1771 Intelligent route selection based on most specific prefix and shortest Autonomous System (AS) path Classless …

MPLS stands for Multiprotocol Label Switching. Multiprotocol because it might be applied with any Layer 3 network protocol, although almost all of the interest …