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    From Around the Network

    working of ISIS

    Submitted by rittam@CCIE on Sat, 08/21/2010 - 16:07.

    hello everybody,

    can anybody plz explain me the working cases where ISIS is different from OSPF.
    I know that ISIS is working on OSI layer structure, but how it si different than ospf, and in which cases I need to select ISIS over OSPF ?

    What is the difference between HP Opsware and NetBrain Configure Management Solution?

    Submitted by NetBrain on Fri, 08/13/2010 - 03:55.

    Both HP Opsware and NetBrain have strong features at configure management. Howerver, the two tools are different, let us take a quick view here.

    Firstly, we know that Opsware is a configuration management solution from HP. The key components of Opsware include NAS for network and SAS for server.  ...  read more »

    What is the difference between Opnet NetMapper and NetBrain SmartMap?

    Submitted by NetBrain on Thu, 08/12/2010 - 06:23.

    Both Opnet Netmapper and NetBrain SmartMap features are designed for network engineers and can improve productivities in network diagramming work. Some engineers feel confused, because they don’t know exactually that what the difference between them is. In fact, the two tools are totally different; let me try to introduce the difference in this article.  ...  read more »

    Automate Your Network Assessments with NetBrain Architect Edition

    Submitted by NetBrain on Wed, 08/11/2010 - 02:16.

    Though many tools are desgin for network assessment, NetBrain’s Architect Edition is the only solution available that provides end-to-end automation of either Readiness or Vulnerability assessments.

    NetBrain’s Architect Edition is powerful at all phases of the assessment process; from network discovery to generating a full network assessment documentation package. Why? Because NetBrain Architect Edition automation eliminates all manual tasks associated with traditional network assessment.  ...  read more »

    Network Assessment Automation

    Submitted by NetBrain on Fri, 08/06/2010 - 02:58.

    The work of network automation needs to be automated and one of the most important reasons is that most organizations can't afford to have project failures or network outages as a result of inadequate knowledge about network configuration or performance.

    Asssume you are a consultant, you will meet the basic requirements as following:
    end-to-end automation, all collected data is in a single repository, not in different applications, full port-to-port connectivity and routing information, data must be accurate and complete, etc.  ...  read more »

    Network Vulnerability Assessment

    Submitted by NetBrain on Thu, 08/05/2010 - 03:08.

    We all know that vulnerability assessment is one important part of network assessment. In this article, we will discuss network vulnerability assessment and introduce an automated network assessment tool which will improve your productivity significantly for you.

    A network vulnerability assessment provides a number of important data points about your network infrastructure and its ability to withstand or prevent external attacks and protect sensitive data.

    Some of the elements that a vulnerability assessment will cover include:
    • Discovery of L2/L3 topology and routing  ...  read more »

    Network Readiness Assessment

    Submitted by NetBrain on Wed, 08/04/2010 - 02:02.

    At a high level, network assessments fall into two major categories; Readiness Assessment and Vulnerability Assessment. The needs of the IT organization will dictate the type of assessment that is required. In this article, we will discuss what network readiness assessment is and what tool can help to do network readiness assessment.

    A readiness assessment will establish a working baseline and reveal if there are any performance or misconfiguration issues in the network.  ...  read more »

    Make sure that logging console or logging buffered is configured in Troubleshooting Section

    Submitted by haseeb907 on Mon, 08/02/2010 - 14:01.

    Please make sure that either logging console or logging buffered is enabled while doing the troubleshooting section.

    I have noticed in several occasions while doing INE TS labs that neither of these commands were enabled by default and I was doing RIP debugging troubleshooting.

    I thought that RIP is not seding an updates as it is believed to be slow protocol:-)...But later I realized that the updates were there but they were not being shown.

    HTH

    Haseeb

    Shut Down the Physical Interfaces while creating Ether Channels

    Submitted by haseeb907 on Mon, 08/02/2010 - 13:55.

    In many occasions, I have noticed that if we do not shut the physical interfaces before creating Ether Channels, so as soon as the interfaces are added in the channel, they shutdown (actually err-disabled). It should be the best practice to shut the interfaces that we need to add in the Ether Channels, before adding them in the channel-group.

    Why I mentioned this because I keep on troubleshooting the problem of Ether Channel not coming up and I realize that the physical interface it self is shut.

    HTH..

    Haseeb

    The Network Assessment Process and Common Challenges

    Submitted by NetBrain on Thu, 07/29/2010 - 09:12.

    Currently, network assessments are conducted as a multi-phased manual process, starting with the collection of information including; device inventory, connectivity, routing, applications, performance data and configuration information for the target network.  ...  read more »

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