Archive for 30 June 2008

STP & Layer 2 Switch redundency 30 June 2008 at 12:17 pm by admin

Bitmindframes Study guides

Spanning Tree Protocol & Layer 2 Redundency.

Layer 2 redundency improves network availability with alternative network paths.
A simple path can be disrupted with little impact.
Redundency is achieved at the distribution & core through additional hardware & alternate paths.
Each Access Layer switch is connected to 2 different Distribution Layer switches.
Each Distribution Layer switch is connected to 2 Core Layer switches.
Spanning Tree Protocol is enabled by default.
Spanning Tree Protocol puts some ports into forwarding & others in blocking.
This prevents Layer 2 switching loops. Spanning Tree Protocol uses a redundant link if the primary fails.

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Tags: vtp, cisco, switch, router, ip, guides

+ Cisco Wireless Lans WLAN By admin 30 June 2008 at 1:16 am and have No Comments

Bitmindframes cisco study guides

Why use wireless?
Networks are evolving to support people on the move
Many different infastructures (wired LAN, service providers) allow mobility.
Productivity is no longer restricted to a fixed work location or a defined time period.
WLAN’s reduce cost.

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Tags: vlan, vtp, wan, 802.1q, router, switch