SSH or Secure Shell is basically a secured method of accessing and sending commands to your router’s CLI through a network connection; without having to plug a console cable directly. Unlike standard telnet that sends data in plain-text format, SSH uses encryption that will ensure confidentiality and integrity of the data. There are two versions of […]
Link Aggregation or Ether Channel is a technology which allows for two or more physical ports to combine into one logical port providing high availability and increased bandwidth. Link Aggregation Control Protocol (LACP) is a industry standard (IEEE 802.3ad) protocol that is used to bundle two or more links and can work with devices from different […]
Port Aggregation Protocol (PAgP) also called EtherChannel is a Cisco proprietary protocol that is used for bundling two or more physical ports into single logical port. EtherChannel can provide high availability and increase bandwidth at the same time. There are three different methods to configure EtherChannel in Cisco switch. You can configure it manually or use protocols like […]
When you have dozens or more number of switches in your network, managing VLAN becomes difficult. VLAN Trunking Protocol (VTP) simplifies creation and management of VLANs in network. Before you configure VLANs, you need to understand the basics of VTP protocol. In this post, I will show steps to Configure VLAN Trunking Protocol (VTP) in Cisco […]
VLAN Trunking Protocol (VTP) is used to synchronize VLAN creation between the switches in the network. Imagine you have dozens, if not hundreds of switches in your network. You have to log into each switch and manually create VLANs. This does not sound practical, does it? Using VTP protocol, you can manually create VLANs in […]
Communication between different VLANs require router or some form of routing. Routing between the VLANs can be done using layer 3 switch or use more popular form of inter-vlan routing called router on a stick. Layer 3 switches are pretty expensive which is the main reason why router on a stick configuration is popular. In […]
If you have basic understanding of VLANs in Switching World then you can easily configure VLANs in Cisco Catalyst switches. In this post, I will show steps to Configure VLAN in Cisco Catalyst Switch. Configure VLAN in Cisco Catalyst Switch The diagram below shows our scenario. There are two switches, Switch1 and Switch2. We will create […]