

In other words, you need to choose the software before buying the switch. An SI switch cannot be field upgraded to an EI switch. A particular 2950 model runs either SI or EI. Original state: 2950’s can use either an IOS called a standard image (SI) or enhanced image (EI). And while in some cases it may be useful to have a Gigabit or 10 Gigabit interface, the majority of features work the same regardless of interface type. Most Cisco Enterprise-class switches come with at least 12 ports. For example, following the Switch Square topology, a single switch would need at most 6 ports for switch-to-switch links, and a few for connections to other devices.

The number of switch ports seldom matters for certification preparation because of the topologies needed to experiment with each feature.
Cisco 2950 switch series#
As has been the case with switch technology over time, Cisco has regularly introduced new series of lower end switches, with each new series having a big increase in performance – both for simple forwarding as well as forwarding the presence of having many features enabled. The 2950 series was intended for the access layer in a campus LAN design, sitting in wiring closets to connect to end users. CGS 2520 Switch System Message Guide, 12.This model series was introduced as a wiring closet switch in the early 2000’s.Cisco CGS 2520 Switch Software Configuration Guide for IOS Release 15.0(2)SE 2.Cisco CGS 2520 Switch Software Configuration Guide for IOS Release 12.2(58)EY 0.CGS 2520 Switch Software Configuration Guide, 12.2(53)EX 1.Connected Grid Switch Software Configuration Guide for IOS Release 15.0(2)ED 0.Temperature and Power Monitoring for SFP DOMs 1.Precision Time Protocol Software Configuration Guide for IE 2000U and Connected Grid Switches 2.Guía de introducción del Cisco CGS 2520 1.Regulatory Compliance and Safety Information for the Cisco CGS 2520 1.Installation Notes for the Power Supply Modules for the Cisco CGS 2520 1.Cisco CGS 2520 Hardware Installation Guide 1.Open Source Used in Cisco IOS Release 15.0(2)EK 2.CGS 2520 Switch Command Reference, 12.2(53)EX 1.Release Notes for Cisco IOS Release 15.2(4)EA5 2.Release Notes for Cisco IOS Release 15.2(6)E1 0.Release Notes for Cisco IOS Release 15.2(4)EA7 0.Release Notes for Cisco IOS Release 15.2(4)EA8 1.Release Notes for Cisco IOS Release 15.2(6)EB 1.Release Notes for Cisco IOS Release 15.2(6)E2a 1.Release Notes for Cisco IOS Release 15.2(7)E 1.Release Notes for Cisco IOS Release 15.2(7)E0s 1.Release Notes - Cisco IOS Release 12.2(53)EX for the Cisco Connected Grid Switch 2520 1.Release Notes for Cisco IOS Release 15.2(7)E1a 1.Release Notes for Cisco IOS Release 15.2(4)EA9a 1.Release Notes for Cisco IOS 15.2(7)E2 2.Release Notes for Cisco IOS Release 15.2(8)E 3.Release Notes for Cisco IOS Release 15.2(7)E5 1.

