In this serie of posts we’ll explore routing operation. Let’s start from the general idea of how could we manage trafic, a move from one location to another… In the example of the fi...
In this blog let’s try to connect to a home network from outside (internet) in a secure manner using SSL. NAT and PAT NAT and PAT is what allowed local IP addresses translation or mapping to som...
In this post, let’s recall what is subnetting (for routing and switching purposes) and how it is done. introduction and motivation Network subnetting is very important subject that maybe referre...
In this post let’s talk about cabling, especially ethernet cabling to meet speeds of 1 gig. 4 elements are discussed : operation as described in the standard, awg metric, pinout and twist. Alter...
HSRP is one of the most know FHRP (Fisrt Hop Routing) protocols proposed by Cisco to help secure (in terms of redundancy) the gateway (for hosts or servers) in a LAN. The objective is simple: configur...
- Transmit Power Control in IEEE 802.11 Cisco WLAN networksTPC stands for Transmit Power Control. It’s a one of Cisco RRM, Radio Resources Management, techniques that are aimed at tackling interference, cross and co-channel, in Wlan networks. RRM: TPC, CHD and DCA It works tightly with CHD, Covergate Hole Detection, to optimize transmit power. TPC tends to minimize the transmit power and CHD to eliminate
- 10 security measures against 10 attacks in a LAN network – Part IAn Ethernet switch is the central element of a LAN network and operates at data link OSI layer. Every switch port defines a collision domain and can extend a broadcast or broadcast frame domain that is stopped by a router routed interface that operates at network OSI layer. By default switches support one broadcast domain
- Understand how Aruba ARMizes your WLAN for sure!Presenting ARM In this post, that is a part of a serie of post that discuss how Wlan to radio ressources management, we talk of Aruba way of doing it. The figure shows a simple wlan network of 6 AP or access points. This is heatmap showing that radio signal is very strong (in red)
- Understand RIP Routing Timers All in One Shot!This post is part of a series of posts about dynamic routing protocols and especially RIP. We’ll try to get a deep understanding of its operation and function as an introductory to dynamic routing logic in general. You’ll see that what we think easy may hide an incrementing complexity… a little introduction Berfore we start
- DUAL route FSM Processing of EIGRP QueriesThis blog is a part of series of posts about EIGRP routing protocol. Let’s recall that EIGRP is one of the so called IGP routing protocols. IGP stands for interior routing protocols as opposed to EGP or exterior routing protocols. In addition EIGRP is a hybrid as it borrows some similiarities to distance-vector and link-state
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