For you that still confuse with GNS, here I found great video on how to download GNS3, then install and getting its work, also another videos that related with GNS. Watch all theses videos, follow all screen instruction then test on your labs..
Cisco ios Free Download, Cisco ios Download, free cisco IOS.
By the “Power of Google”, you can do anything and averything you want:-), just copy-paste this script on google search:
intitle:index.of ios parent directory bin
or just simply click link below:
GNS3 is a graphical network simulator that allows you to design complex network topologies and to launch simulations on them.
To allow complete simulations, GNS3 is strongly linked with :
- Dynamips, an IOS emulator which allows users to run IOS binary images from Cisco Systems.
- Dynagen, a text-based front-end for Dynamips.
- Pemu, a PIX emulator.
GNS3 is a excellent complementary tool to real labs for administrators of Cisco networks or people wanting to pass their CCNA, CCNP, CCIP or CCIE certifications.
It can also be used to experiment features of Cisco IOS or to check configurations that need to be deployed later on real routers. This project is an open source product that may be used on multiple platforms, including Windows, Linux, and MacOS X.
- Designing high quality complex network topologies.
- Emulating Cisco routers and PIX firewalls.
- Simulating simple Ethernet, ATM and Frame Relay switches.
- Load and save in Dynagen’s INI-like format.
- Image export (JPEG, PNG, BMP and XPM).
download latest GNS3 from website:
Download GNS 3 and Cisco 1700,2600,7200 IOS in one pack:
RAR Password :sumptuousworld
The Performance barriers created by the WAN:
Bandwidth constraints keep applications from performing well.
Too much data and too small of a pipe causes congestion, packet loss, and backpressure.
ERROR on my switch 3750, here the message on booting:
Waiting for Stack Master Election…
POST: Inline Power Controller Tests : Begin
POST: Found inline power controller write failure, inst 11
POST: Inline Power Controller Tests : End, Status Failed
POST: Inline Power feature is disabled on this switch
POST: PortASIC CAM Subsystem Tests : Begin
POST: PortASIC CAM Subsystem Tests : End, Status Passed
POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed
Switch 1 booting as Master
Waiting for Port download…Complete
I use 3750 for 16 PCs and 12 IP Phone 7960G. PC client still work but I can’t use or activate PoE on my IP Phone anymore. I try to give command = “power inline consumption <miliwatts range 4000 – 15400>” but still failed.
does anyone know whats the problem??
the answer here on sadikhov forum..
Cisco Unified Communications Manager (CUCM), formerly Cisco Unified CallManager and Cisco CallManager (CCM), is a software based IP call agent platform sold by Cisco Systems. Cisco renamed the product to Unified Communications Manager. Version 6 was supposed to merge all features of the Linux appliance (SIP support and licensing requirements) between the Linux platform and Windows version. The released version of Unified Communications Manager will not support the Windows platform.
This version added an intercom feature between endpoints, and integrated Mobility Manager (single number reach to multiple destinations, IP Phone, Cell Phone, etc).
service timestamps debug datetime msec
service timestamps log datetime msec
boot system flash:c2800nm-adventerprisek9_ivs-mz.124-11.T.bin
card type e1 0 0
logging buffered 4096
enable secret 5 $1$VdPI$tzsy5DOhx0gMjS4XXXX
If you are looking for CCNA Study Guide regarding the new version of CCNA 640-802 Exam, here is the complete PDF study guide:
Last Updated, 09 July 2008:
Ccna 640-802 Ppt Slides, By SYBEX Todd Lammle:
TestKing 640-802 v17:
ActualTest 640-802 ver. 02/13/08:
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Yesterday, I found 3 FastEthernet port disabled on My Catalyst Express 500 (Port 20,23 & 24):
And this is the screen shoot from the alert page:
Result of running ’#show interface status’; 3 port status =’err-dissabled’
VLAN Configuration; Port 23-24 on Default VLAN, Port 20 on VLAN 3
Taken from Forum, port with ’ERR-DISABLED’ status can be resolved by running ’shutdown’ and ’no shutdown’ on that interface:
(config)#interface fastethernet 20
In order to turn on errdisable recovery and choose the errdisable conditions, issue this command: #errdisable recovery cause ?
Another command to troubleshoot:
- show interfaces status err-disabled-Shows which local ports are involved in the errdisabled state.
- show etherchannel summary-Shows the current status of the EtherChannel.
- show errdisable recovery-Shows the time period after which the interfaces are enabled for errdisable conditions.
- show errdisable detect-Shows the reason for the errdisable status
Because ’err-disable’ on my port caused by LOOPBACK, and when I see from ’#show errdisable recovery’ command the timer status is disabled, so I need to ’enable’ and give recovery timer for loopback.
(config)#errdisable recovery cause loopback
(Config)#errdisable recovery interval 400
Cause I am not Certified yet on Cisco, I don’t know is it a good decision or not give recovery timer for ’loopback’. I just won’t t to run ’shutdown’ & ’no shutdown’ if my port status ’err-dissable’ again. maybe u can give suggestion? I’ll apreciate it..
Update: Troubleshoot guide from Cisco: