Network technologies and trends


March 31, 2009  6:02 AM

CCNP in a week?



Posted by: Yasir Irfan
CCNP, CCNP Blog, Cisco Press Author

Dear Friends I came across a blog post by Cisco Press author Brandon Carroll’s with a title” Can you knock out half of the CCNP in a week?”  For CNNP certification aspirers its worth reading this post which can be accessed at http://www.globalconfig.net/2009/03/30/can-you-knock-out-half-of-the-ccnp-in-a-week/

March 29, 2009  5:14 AM

Cisco brings security to life with animated characters -Watch Second Eposide



Posted by: Yasir Irfan
Botnets, Cisco, Cisco animation, Cisco Comics, cisco engineers, comics, intruders, Malware, online comic, SPAM, Terminator, The Realm

Dear friends in my post on March 9th I was talking about the ‘The Realm.”, now the second episode is available you can watch this and just relax watching the latest security threats in the animated format.

[kml_flashembed movie="http://www.youtube.com/v/cWHrAgVcqY4" width="425" height="350" wmode="transparent" /]


March 29, 2009  5:00 AM

Cisco to Acquire Pure Digital Technologies



Posted by: Yasir Irfan
Cisco, Cisco Systems, Consumer Market, Flip video cameras, Pure Digital

During this economic crisis Cisco is brave enough to acquire Pure Digital, the makers of the popular Flip line of portable video cameras for $590 million in stock. Cisco will also pay out $15 million in retention incentives for Pure employees who stay on with the new company.

More than 2 million Flip video cameras have been sold in the U.S. to date, and the move will expand Cisco’s consumer market presence with what is essentially, a high-end toy.

“The acquisition of Pure Digital is key to Cisco’s strategy to expand our momentum in the media-enabled home and to capture the consumer market transition to visual networking,” said Ned Hooper, senior vice president of Cisco’s Corporate Development and Consumer Groups. “Pure Digital has revolutionized the way people capture and share video with Flip Video. This acquisition will take Cisco’s consumer business to the next level as the company develops new video capabilities and drives the next generation of entertainment and communication experiences.”


March 22, 2009  8:08 AM

Great Change to win three X Box 360 absolutely free!



Posted by: Yasir Irfan
Add new tag, Contests, IT Knowledge Questions, ITKE, Knowledge Points, Network Questions, Technical Answers, Technical Questions, Win X Box 360, Winners, X-Box 360 Console

Dear Friends, here is a golden opportunity to win three X-Box 360 Console that too free. In order to win  X Box 360 consoles, you have to actively participate in the ITKnowledgeExchange.com and answers the questions posted in the ITKnowledgeExchange.com web site.

Also you have to ask 5 IT related questions. The questions posted at ITKnowledgeExchange.com are purely technical and they are classified into wide categories, waiting for what just log to ITKnowledgeExchange.com and start answering the questions posted and earn more points, the more points you accumulate from March 18th 2009 to April 30th 2009 the better for you, the top three contributors will be chosen as winners and will be awarded with X-Box 360 Consoles.


March 17, 2009  12:28 PM

Don’t Panic for ICND 1 Simualtion questions.



Posted by: Yasir Irfan
CCENT, CCENT Exam, CCNA, CCNA Exam, Cisco Tips, ICND 1 Simualtion questions, ICND1, ICND1 Exam, IP Address, Routing, sho running-config, Show ip interface, Show ip interface brief

One of my colleagues went for the ICND 1 (640-822) exam and he failed to pass the exams with a small margin. He got few simulation questions, in which he was suppose the find out the IP address for the router interfaces connected in the topology provided. The show running command was disabled, he was suppose to use alternative IOS commands to determine the IP address assigned to the router interface.

 

In this scenario don’t panic,  the best command to determine the IP address assigned to interface s in any router is “show ip interface brief” or Show ip interfaces. Here is the sample output of these commands

 

ITKE-DAC-3745R01#sho ip interface brief

Interface                     IP-Address      OK? Method Status                Protocol

FastEthernet0/0         10.135.5.21     YES DHCP   up                    up     

FastEthernet0/1         192.168.1.2     YES NVRAM  up                    up     

Tunnel0                       172.31.31.50    YES NVRAM  up                    up     

ITKE-DAC-3745R01#

 

ITKE-DAC-3745R01#show ip interface

FastEthernet0/0 is up, line protocol is up

  Internet address is 10.135.5.21/24

  Broadcast address is 255.255.255.255

  Address determined by DHCP

  MTU is 1500 bytes

  Helper address is not set

  Directed broadcast forwarding is disabled

  Outgoing access list is not set

  Inbound  access list is not set

  Proxy ARP is enabled

  Local Proxy ARP is disabled

  Security level is default

  Split horizon is enabled

  ICMP redirects are always sent

  ICMP unreachables are always sent

  ICMP mask replies are never sent

  IP fast switching is enabled

  IP fast switching on the same interface is disabled

  IP Flow switching is disabled

  IP CEF switching is enabled

  IP CEF Feature Fast switching turbo vector

  IP multicast fast switching is enabled

  IP multicast distributed fast switching is disabled

  IP route-cache flags are Fast, CEF

  Router Discovery is disabled

  IP output packet accounting is disabled

  IP access violation accounting is disabled

  TCP/IP header compression is disabled

  RTP/IP header compression is disabled

  Policy routing is disabled

  Network address translation is disabled

  WCCP Redirect outbound is disabled

  WCCP Redirect inbound is disabled

  WCCP Redirect exclude is disabled

  BGP Policy Mapping is disabled

FastEthernet0/1 is up, line protocol is up

  Internet address is 192.168.1.2/28

  Broadcast address is 255.255.255.255

  Address determined by non-volatile memory

  MTU is 1500 bytes

  Helper address is not set

  Directed broadcast forwarding is disabled

  Multicast reserved groups joined: 224.0.0.5 224.0.0.6

  Outgoing access list is not set

  Inbound  access list is 101

  Proxy ARP is enabled

  Local Proxy ARP is disabled

  Security level is default

  Split horizon is enabled

  ICMP redirects are always sent

  ICMP unreachables are always sent

  ICMP mask replies are never sent

  IP fast switching is enabled

  IP fast switching on the same interface is disabled

  IP Flow switching is enabled

  IP CEF switching is enabled

  IP CEF Flow Fast switching turbo vector

  IP multicast fast switching is enabled

  IP multicast distributed fast switching is disabled

  IP route-cache flags are Fast, Flow, CEF, Flow Cache

  Router Discovery is disabled

  IP output packet accounting is disabled

  IP access violation accounting is disabled

  TCP/IP header compression is disabled

  RTP/IP header compression is disabled

  Policy routing is disabled

  Network address translation is disabled

  WCCP Redirect outbound is disabled

  WCCP Redirect inbound is disabled

  WCCP Redirect exclude is disabled

  BGP Policy Mapping is disabled

Tunnel0 is up, line protocol is up

  Internet address is 172.31.31.50/30

  Broadcast address is 255.255.255.255

  Address determined by non-volatile memory

  MTU is 1476 bytes

  Helper address is not set

  Directed broadcast forwarding is disabled

  Multicast reserved groups joined: 224.0.0.5

  Outgoing access list is not set

  Inbound  access list is not set

  Proxy ARP is enabled

  Local Proxy ARP is disabled

  Security level is default

  Split horizon is enabled

  ICMP redirects are always sent

  ICMP unreachables are always sent

  ICMP mask replies are never sent

  IP fast switching is enabled

  IP fast switching on the same interface is disabled

  IP Flow switching is enabled

  IP CEF switching is enabled

  IP CEF Flow Fast switching turbo vector

  IP multicast fast switching is enabled

  IP multicast distributed fast switching is disabled

  IP route-cache flags are Fast, Flow, CEF, Flow Cache

  Router Discovery is disabled

  IP output packet accounting is disabled

  IP access violation accounting is disabled

  TCP/IP header compression is disabled

  RTP/IP header compression is disabled

  Policy routing is disabled

  Network address translation is disabled

  WCCP Redirect outbound is disabled

  WCCP Redirect inbound is disabled

  WCCP Redirect exclude is disabled

  BGP Policy Mapping is disabled

ITKE-DAC-3745R01#


March 17, 2009  7:59 AM

The Cisco Mind Share Game is coming soon, enjoy the beta version



Posted by: Yasir Irfan
Binay number, CCENT, CCNA, Cisco Certifications, Cisco Games, Cisco learning game, Cisco Mind Share game, IOS Fundamentals, IP addressing, Learning Games, Subnetting, Wireless

Dear Friends, the most comprehensive Cisco learning game is about to launch! good news for the Cisco Certification aspirers, the Cisco Systems came up with a brilliant idea, it’s a game known as Cisco Mind Share game which covers more than 50% of the CCENT/CCNA certification exam. Currently the Cisco Mind Share game is available as demo version. Which features 5 excitng sections of the full subnet of 15 features? Each level is playable at three difficulty levels based upon your experience and knowledge.

 

Following topics are covered by the Cisco Mind Share game

Topics covered include:

 

·         Binary Number

·         IOS Fundamentals

·         IP Addressing

·         IP routing

·         NAT and PAT

·         The OSI Model

·         Subnetting

·         Switch Operation and behavior

·         Wireless

 

 

[kml_flashembed movie="http://www.youtube.com/v/jxzVAok2UQQ" width="425" height="350" wmode="transparent" /]

 

 

 

In order to achieve a high score in the Cisco Mind Share game requires deep understanding of the technology. The Cisco Mind Share game is a great way to improve your speed and accuracy on Cisco Certification exams as well as it’s a fun filled activity.

DOWNLOAD AND PLAY THE DEMO VERSION NOW!

Join the discussion on this and other Learning Games in the Games Forum


March 14, 2009  5:22 AM

Cisco Systems released Cisco® IOS® Software updates for Cisco Catalyst® 3750-E, 3750, 3560-E, 3560, and 2960 Series Catalyst Switches



Posted by: Yasir Irfan
3560E, Advanced IP Services, Auto Smartports, Cisco 12.2(50)SE, Cisco Catalyst 2960, Cisco Catalyst 3650, Cisco Catalyst 3750 Series, Cisco EnergyWise, Cisco IOS, Cisco IOS Release, Identity-based networking, IP Base, IP Services

Cisco Systems announces the release of Cisco IOS ® Software Release 12.2(50)SE for Cisco Catalyst 3750-E,3560-E,3750,3560 and 2960 Series Switches. This new release from Cisco Systems introduces Energy wise technology and adds several enhancements in the areas of identity-based networking services and ease of use with Auto Smart ports.

Picture Courtesy:Cisco Systems.

There are several new features included in this release, which are as following.

• Cisco EnergyWise: The inclusion of Cisco EnergyWise technology in this release enables companywide optimization of greenhouse gas (GhG) emissions by measuring, reporting, and reducing energy consumption across the entire corporate infrastructure.

• Identity-based networking: This release continues to enhance Cisco Identity-based Networking Services (IBNS) with several primary innovations to simplify configurations that support heterogeneous endpoint device environments. The release also includes innovations to transparently integrate with existing network and Internet Protocol Telephony (IPT) infrastructure and to provide IT administrators comprehensive policy enforcement options. These enhancements are covered in detail under “Security and Identity Enhancements” section.

• Auto Smartports: This release extends Smartports to allow dynamic switch port provisioning. The switch uses Cisco Discovery Protocol to determine the type of the device connected to the switch and automatically provisions the port based on the predefined macros. The switch integrates with RADIUS for device authentication and applies the macro based on the RADIUS-assigned tag.

• Wired location services: This enhancement enables switch port tracking of hosts or users connected to switches. As part of the location service, the switch integrates with Cisco wireless Mobility Services Engine, which can be used for host/user lookup in determining the switch connectivity for troubleshooting purposes.

• Cisco Catalyst 3750 Series with Cisco StackWise® enhancements for troubleshooting: This release provides new command-line interface (CLI) for StackWise stats and counters to aid in troubleshooting.

• LLDP-MED integration for class of service/diff services code point (CoS/DSCP): Switch will signal CoS/DSCP settings to connected IP telephone using Link Layer Discovery Protocol for Media Endpoint Devices (LLDP-MED) (so that the IP telephone can use the values for communication)

• Link Layer Discovery Protocol (LLDP) MIB: This release provides manageability for LLDP including local and remote MIBs.

• Secure copy (SCP) support for Configuration Copy Management Information Base (Config-Copy-MIB). This feature provides secure configuration copy capability.

• IP Source Guard (IPSG) and Dynamic Address Resolution Protocol (ARP) Inspection (DAI) support for Cisco Catalyst 2960 Series Switches with LAN Base software: This release introduces IPSG and DAI capabilities for Layer 2 security.

• Cisco Catalyst 2960 Series authentication-failed VLAN. This feature is now also available in LAN Lite package. Previously it was available only in LAN Base package.

• Cisco Configuration Engine support: Catalyst switches can be managed from Cisco Configuration Engine for zero-touch deployment.

• IS-ISv4: This release introduces Integrated Intermediate System-to-Intermediate System (IS-IS) routing protocol for IPv4 networks.

• RADIUS Server load balancing: This release allows access and authentication requests to be distributed evenly across all RADIUS servers in a server group.

• Cisco Entity Sensor MIB: This release adds manageability for Digital Optical Monitoring (DOM)-capable modules.

• Small Form-Factor Pluggable (SFP) + 10 Gigabit Ethernet X2: This release supports SFP-10G-SR and SFP-10G-LR SFP+ transceiver modules.

• X2 ZR: This release supports 10 Gigabit Ethernet X2 ZR optical modules.

• CPU utilization threshold: This release allows users to define thresholds and receive notification when thresholds are exceeded.

• Embedded Event Manager (EEM) 2.4: This release adds EEM 2.4 support.

• Support for 64 EtherChannel ports: This release increases EtherChannel scaling to 64 per switch. Available only on Cisco Catalyst 3100 Series blade switches

• Resilient Ethernet Protocol (REP) for the Cisco Industrial Ethernet (IE) 3000 Series: This protocol provides fast convergence for Layer 2 ring topologies.

• IPv6 packaging changes: Cisco has announced the end of life for Advanced IP Services (AIS). Functionality previously available in AIS has been migrated to IP Services or IP Base as documented in Table 1.

Table 1. Feature Migration for Catalyst 3k Advanced IP Services

Feature

Current IPv6 Features before EOL

Location of IPv6 after EOL

EIGRPv6, OSPFv3

Advanced IP Services

IP Services

ACL

Advanced IP Services

IP Base

HSRPv6

Advanced IP Services

IP Base

DHCP Server/Client/Relay

Advanced IP Services

IP Base

RIPng

Advanced IP Services

IP Base

Static Routes

Advanced IP Services

IP Base


March 9, 2009  6:31 AM

Cisco brings security to life with animated characters



Posted by: Yasir Irfan
Botnets, Cisco, Cisco animation, Cisco Comics, cisco engineers, comics, intruders, Malware, online comic, SPAM, Terminator, The Realm

Cisco has appointed a select group of Cisco Engineers to develop a state-of-the-art security force. ‘The Realm.” growing beyond the systems in which they were created into a group of powerful defenders. Forming a unified league of security, the defenders battle Botnets, Malware, Spam and Intruders in the Realm, assuring the safety and security of every citizen on the human network.

‘The Realm.”is an online comic that animates the pane flow and adds voice narration. Creatively it’s an engaging experience, not as complete as a full scale animation but more alive that just a flat 2D image.

Visit http://www.cisco.com/go/realm to learn more.

[kml_flashembed movie="http://www.youtube.com/v/MY3yw6Hui48" width="425" height="350" wmode="transparent" /]


March 9, 2009  5:14 AM

VLAN Trunking Protocol (VTP) Overview – Series 4



Posted by: Yasir Irfan
Cisco, Cisco Catalyst Switches, Cisco Proprietary, GVRP, IEEE, Layer 2, Switches, VLAN Trunking Protocol, VTP, VTP Domain, VTP Overview, What is VTP

What do you think what happens? If a new Cisco Catalyst® switch is placed between any two VTP domains, the Cisco Catalyst® switch will join the VTP domain identified by the first VTP update it receives. Just check the below example.

 

 

The VTP domain can be changed to another in a Cisco Catalyst® switch by using the CLI prompt, this is the only way you can change.


March 4, 2009  9:02 PM

Review for CCENT 640-822 Network Simulator



Posted by: Yasir Irfan
640-802 CCNA Exam, CCENT 640-822, CCENT 640-822 Network Simulator, CCNA, CCNA ICND2 640-816, CCNA Labs, Cisco Certifications, Cisco Learning, Cisco Press, ICDN1, ICDN2, Pearson Education

CCENT 640-822 Network Simulator is a simply great simulator for the CCNA Certification aspirers covering all the ICND1 topics.

 The  state-of-the-art, interactive simulation software enables you to practice your networking skills with 98 structured labs designed to help you learn by doing, which is the most effective method of learning.

The CCENT 640-822 Network Simulator is divided into three categories, Skill Builder, Configuration Scenario and Troubleshooting Scenario.   The best part of the CCENT 640-822 Network Simulator is its very fast consumes less CPU processing power & it’s a java based application. The lab scenarios included in the CCENT 640-822 Network Simulator are far more complex, challenging you to learn how to perform realistic network configuration and troubleshooting tasks. The CCENT 640-822 Network Simulator is best for the CCNA Certifications aspirers especially for the guys who have less exposure to real environment.

The best thing about the CCENT 640-822 Network Simulator is the organization of labs. The Skill builder consists of three parts; even the Configuration Scenario consists of three parts where as Troubleshooting scenario has one part. These labs are quite handy and useful. The moment you open any lab the corresponding pdf file opens with the lab instructions. You are supposed to answer few questions in the labs, the LAB topology is explained well.

I would strongly recommend the CCENT 640-822 Network Simulator for anyone who is depended on the self study. CCENT 640-822 Network Simulator is available only as a download, and is a subset of the CCENT 640-822 Network Simulator, covering all the ICND1 topics.


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