Networking

In the world of network security and data transport, GRE tunnel vs IPsec stands out. GRE routes many protocols over IP networks, following RFC 2784. On the other hand, IPsec protects data integrity, as stated in RFC 2406. GRE is great at carrying multicast and IPv6, using Protocol number 47. IPsec, though, uses ESP and…

In today’s world, every device needs an IP address. A single household with a subnet mask of 255.255.255.0 can support up to 254 devices. This makes sure everyone has seamless internet access for their gadgets. But what is a subnet mask, and why is it so important in networking? A subnet mask is more than…

Just a few minutes of network downtime can severely impact a company’s brand and finances. Effective network performance management is essential to keep networks running smoothly. A strong management network ensures stability, even in unpredictable situations. So, what is network performance management and why is it important? It’s about using smart tools to keep data…

Imagine fixing a network problem in a remote office on the other side of the world. Or watching your Ethernet network traffic without leaving your desk. This isn’t science fiction; it’s what Remote Network Monitoring (RMON) makes possible today. RMON goes beyond Simple Network Management Protocol (SNMP) to give detailed insights into network use and…

VPNs are key for privacy and connection. An interesting fact is that devices can only handle a certain number of VPN tunnels. But how these tunnels are set up and managed is what really matters. Route-based VPNs are great at sharing dynamic routing info through tunnels. They use protocols like OSPF, which policy-based VPNs can’t…

Imagine a world where digital devices gather every day. They all want their own spot in the network. The DHCP DORA process helps sort this out, making sure each device gets its own IP address. This process is key in networking, with over 83% of devices using it. It’s like a digital handshake, with messages…

The protocols for Overlay Networks like VXLAN can handle up to 16 million identifiers. This is much more than the 4096 VLANs in traditional Underlay Networks. This shows how much more scalable Overlay Networks are compared to Underlay Networks. It also shows how cloud-based solutions are changing enterprise networking. An underlay network is the core…

In the world of networking, growing and managing network capacity is key. A stack can change size without slowing down. This technology changes how we build networks, making them more flexible and easier to manage. Switch stacking is more than just stacking switches. It’s a way to make strong and flexible networks. Even if one…

Did you know that the busy wireless networks in places like universities and big companies rely on a protocol from March 2009? The CAPWAP protocol is at the core of this technology. It lets wireless access points talk to each other smoothly, even when blocked. It uses DTLS encryption and supports fast Wi-Fi speeds, like…

Imagine a technology that lets businesses act like startups but have the strength of a global giant. This is virtual routing and forwarding (VRF). It’s a key part of modern networking that lets many routing tables work together in one router. Yet, VRF-Lite, its simpler form, is easy for small to medium businesses to use.…