Suresh Vinasiththamby

In the previous post, we discussed Type-4 and Type-5 LSAs. This article focuses on Stub and NSSA areas. I highly

In the previous posts, we discussed Type-1, Type-2 and Type-3 LSAs. This article focuses on Type-4 and Type-5  LSAs. This

Problem When attempting to copy file via FTP to a Cisco Switch you see the following error cisco-3850#copy ftp

In the previous posts, we discussed about Type-1, Type-2 and Type-3 LSAs. This article focuses on OSPF Route summarization. I

In the previous post, we discussed about the single-area OSPF and Type-1, Type-2 LSAs. This article focuses on multi-area OSPF

In this blog post, I will go through Junos Single area OSPF configuration and verification using Juniper vLAB Sandbox. Interfaces

What are VPN filters? VPN Filters consist of rules that determine whether to allow or reject tunnelled data packets that

Cisco ISE  Upgrade Readiness Tool (URT) helps detect and fix any data upgrade issues before you start the upgrade process.

I have been working with Nexus for a while and picked up some really useful commands. I use these commands

Dynamic access policies (DAP), a new feature introduced in software release 8.0 code of the ASA, enable you to

There are thousands of commands available on the Cisco ASA. I found some of the commands very useful when troubleshooting.

Cisco Virtual Internet Routing Lab (VIRL) is a multi-purpose network virtualization platform that provides an easy way to build, configure,

AWS defines flow log as: VPC Flow Logs is a feature that enables you to capture information about the IP

Cumulus defines cLAG or mLAG as "Multi-Chassis Link Aggregation (MLAG) enables a server or switch with a two-port bond,

Cumulus OS running on any hardware platform does not have an out-of-the-box device template in Solarwinds NCM. Create a device

There are many articles out there about ICMP and PING. This article solely focuses on ICMP traffic passing through Adaptive

I recently came across a situation where I needed to check if a frame is received and forwarded correctly on