Today I am going to talk about another protocol named as UDLD Uni-Directional Link Detection protocol in details with the different modes used in UDLD.

Today I am going to talk about another technology named as Multi-Chassis Link Aggregation which is generally used is many of the vendors like Juniper, Arista Networks and so on. Here in this article I am going to have discussion with respect to Arista Networks.

As i said, before i will start with the Multi-Chassis Link Aggregation, I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos.

Today I am going to talk about the technology used in the enterprise or the datacenter environment for various vendors in the market. Starting from the Multi-chassis EtherChannel (MEC), Multi-chassis EtherChannel is generally used in the Cisco technology with the VSS.

Before I start with the Multichassis EtherChannel, I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos.

Today I am going to talk about Metro Ethernet. There are lot of people who wants to understand what actually metro ethernet services are and why we are taking these kinds of services. We will come up with your queries one by one and will also describe in this article why service providers are providing metro ethernet services to the customers.

Before I will start with the information on Metro Ethernet, I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos.

Today I am going to talk about the most widely used to have the interaction between the two VLANs in the switched network apart from router on stick. The topic is SVI- Switch Virtual Interface. As many of the enterprises prefer SVI instead of using the Router on Stick way of communicating the VLANs in the switched network.

Before i started with SVI- Switch Virtual Interface followed by the configuration part, I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos.

Today I am going to talk about the Automation orchestration layer for Cisco and Arista which can push the policies around the network automatically and many other features to have the best customer experiences. The goal for Cisco and Arista are same to provide the automation in the Campus or enterprise networks.

Before I will start up with the Cloud Vision and Cisco DNA center, I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos.

Today I am going to talk about one of the new vendor in the market named as Arista Networks who came up with the high end Switches. Although Arista Networks have many switches in their portfolio but specifically I am going to talk about the Arista 7500E switches.

Before I start with the Arista 7500E switch, I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos.


Arista 7500E come up with two different models. These switches are generally for the core switching as they have the high switching capacity. These models are Arista 7504E and Arista 7508E. Arista 7500E Series modular systems are high performance data center switches, available in a compact 7RU (4-slot) or 11RU (8-slot) they combine scalable L2 and L3 forwarding and traffic management with advanced features for network monitoring, precision timing, and network virtualization to deliver deterministic network performance for mission critical data centers, cloud computing, enterprise and HPC environments.

Arista Continue reading

Today I am going to talk about the Core switching where I am taking two vendors and compare the features between them. Here in the specific switch in the Core we can have two different models for which we are comparing the features. The two Switches are Juniper EX8200 and Cisco 6800 Core switches

Before I start with the models one by one,I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos

So if you are going to compare the switches, both switches are excellent with the high capacity backplane and has so many features. Although Cisco come up with the other model Cisco catalyst 9K which is newly in the market and has huge impact to other vendors.

I already wrote some of the articles on Cisco Catalyst 9K and you can go through the articles below
Cisco Catalyst 9500 Switch - A Fixed Chassis Core Switch
Why Cisco Catalyst 9K is so Continue reading

Today I am going to talk about the widely used protocol in the switching scenarios called as Rapid Spanning tree protocol. RSTP all you know that is a enhanced version of the STP (Spanning Tree Protocol) and is now used in many of the LAN networks there in enterprises.

Fig 1.1- STP Topology

Fig 1.2- STP and RSTP Port States

Today I am going to talk about the OSPF NSSA area as this is one of the most important topic and always been asked by the interviewers. I knew many of you are already aware if the OSPF NSSA area but it is important for the network engineers who started studying OSPF in details specially area types. OSPF is one of the widely used protocol in the enterprise network and there are so many enhancements done like to integrate with the IPv6 and OSPFv3.

Today I am going to talk about another route filtering protocol which is widely used in the BGO environment. IP prefix lists are generally used when we need to block or permit the block of the IP addresses in the network.



Now Let's talk about the route filtering technique named as IP Prefix list. So IP Prefix list is the way to permit and deny the routes with the larger block size.

With the use of two keywords , ge and le we are going to deny or permit the IP Prefix block with the subnet mask. The prefix list is applied to inbound or outbound updates for specific peer by entering the prefix-list command in neighbor address-family mode. 

Prefix list information and counters are displayed in the output of the show ip prefix-list command. Prefix-list counters can Continue reading