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gre-tunnel-topology-

GRE (Generic Routing Encapsulation) GRE Overview GRE (Generic Routing Encapsulation) is the mechanism that encapsulate one protocol in another protocol and provides connection between the nodes. This is done basically IP over IP. A Service Provider Network or Internet is used for GRE (Generic Routing Encapsulation). GRE provides this communication over a Tunnel.This is called […]

What is Protected Port ?

Posted by gokhankosem on 10 Sep 17 - 0 Comments
protected-port-topology

What is Protected Port ? Protected Ports are one of the security mechanisms used on switch world. By default all the switch ports are unprotected and equal. But with protected port configuration, some ports are filtered an restricted to access each other. If you configure a port as protected, data traffic on layer 2 is […]

Private VLANs (pVLANs)

Posted by gokhankosem on 10 Sep 17 - 3 Comments
Private-vlan-ports

Private VLANs (pVLANs) VLANs used to divide the Broadcast Domains. With this division, different departments, networks are isolated each other and become another Broadcast Domain. Sometimes, this separation is not enough and additional separation is needed. Private VLANs (pVLANs) are used at these times. Basically we can say that Private VLANs are sub-VLANs or VLAN […]

IPCisco-Cisco-Juniper-Alcatel-Huawei-CheatSheet

COMPARISON OF TOP FOUR VENDORS’S COMMAND LINE In IP world, there are many vendors. But some of these vendors are very common and widely used. These vendors are Cisco, Juniper, Alcatel-Lucent (Now Nokia) and Huawei. I have prepared a cheat sheet for comparison of these vendors’s command line. These document is especially for the Service […]

Basic VPLS Architecture, Full Mesh

Comparison of VPLS and h-VPLS VPLS (Virtual Private LAN Service) and h-VPLS (Hierarhical VPLS) has some common and different properties. So they have different aadvantages and disadvantages.In this article, we will focus on the comparison of these two concepts. The most important different between VPLS and h-VPLS is in the interface between the CE (Customer […]


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