OSPF quick Convergence on specific links in a network.

Hello

I have a couple of question regarding the acceleration of the convergence of OSPF to help me understand it better.

In this case, I would like to speed up the OSPF convergence failure occurred between two specific locations without causing problems for the other routers on the network.  These two sites are part of the area of the spine. The two communities have two connection point to point between them on two different routers at each end.

R1---(Serv Provider1) - R3

SiteA                                                             Site B

---(Serv fournisseur 2) - R4 R2

All I see there are two main factors controlling the rapid convergence of OSPF.

1. the breach of the detection time.

2. propagation of error / time recalulation FPS.

The first factor - failure detection time can be reduced by decreasing the OSPF Hello/dead or using BFD programmable intervals to detect the failure.  What is the best option?

Of what I see if using timers in OSPF Hello/dead I should only match values of timer on router interfaces on part and on the other of my links point to point and could leave other interfaces as they are. Is this correct?

Consider the second part - by strangling the timers of SPF, OSPF SPF computation time is reduced. New account my two links Point to what I can fix timers on the routers to share back and forth across the point-to-point link or I have to put the same on all routers in the OSPF network.

("Timers SPF throttle"command).

Hi Pat,

Regarding the SPF hold timers. to confirm is there any issue with having different values on different routers in the network. I presume not as the value is random anyway?

the values to see the SPFA is always a compromise: on the one hand you don't want a permanent recalculation caused by a link heartbeat, on the other hand, expect a rapid convergence. It means finding values that meet the requirements in terms of stability and convergence at the same time.

I think that the main problem with different values in a box is micro-boucles. Since the new calculation (and update routing tables) not be made never exactly at the same time on routers, link-state routing protocols can produce short times with micro-boucles once the topology changes because some transfer tables are updated as soon as the others (we are talking about tens-hundreds of milliseconds).

If you change the FPS-timer to say that 1 second or even less and other routers in the region still have the default (which is 5 seconds), the period of time where are micro-boucles may occur could be considerably long and that there could be a side effect, according to the topology/design.

Hope that helps

Rolf

Tags: Cisco Network

Similar Questions

  • How you can run a report on the distribution of click on the specific links on an email?

    We would like to see the breakdown on the clicks on the different specific links on an e-mail. I am aware that we can get this report looking at clicks on email and on specific traffic on the landing pages, Web site and/or document downloads, but I was wondering if there is a report in Eloqua showing the distribution of click on the links on an email?

    Thank you!!!

    Hi Melissa,

    I think breaking click link by E-mail might be what you are looking for.

    You can find it in the folder of electronic mail analysis reports.

  • Broken links to the network shared folders by users

    Hello

    Several people here at my office working on files work InDesign InDesign files with links to the image on a network share file store.

    If a person links, the next person to work on the page, on another workstation, but access to the same network, there are all broken links and will have to repeat all - sometimes quite painful if the images are not all in one folder; You must navigate each involved folder and find the file in question.

    Rarely, this happened in CS2, but is happening now quite frequently in CS4. What has changed? And why is it so difficult to re - tying things now? It seemed that when we could not link something new in CS2, it gave you a little help. For example if you were re-login to a given file, if you navigated to the appropriate folder, you will find the file already highlighted. No more, it seems.

    If something has changed in the way that InDesign maintains links?

    How can I avoid that links broken all the time? Is there a quicker way of restoring links?

    Thank you

    Kurt hoffman

    Art Director

    Before journal/NYC

    Assuming you're on Mac: what you see in the Finder may differ from the actual path of the Unix.

    A possible cause is that if you get the same volume of different user accounts, reboot just to fix it.

    Another cause is an empty folder in the Volumes folder, delete to fix.

    To check, drag the image into the web browser. The URL can show variations in the volume name, as one '-' appearing in annex 1.

    You can also take a look at the links, low link info panel. The 'path' value must be enabled.

    Dirk

  • How to quickly reach a specific timecode location?

    I have a project whose starting timecode is 09:33:25.

    I would switch to a specific timecode location (9: 48:45) by typing inside. So, I hit Ctrl-P and type 94845. As I type 94845, different figures appear in the meter. When I hit back, FCPX inexplicably puts the meter at 09:49:15, that's not what I asked for.

    In addition, if I touched the game, he plays the project from the beginning (9: 33:25), 09:48:45 no or 09:49:15.

    How can I quickly and easily move the playhead at 09:48:45?

    Screencast of my problem in action: http://youtu.be/ar56W8vswLw

    I do this hundreds of times to place markers, that's why I'm going to try to find a quick way to do it.

    Make sure your TC departure is 00:00.

    Just clicking on the TC field in the dashboard is expected to enter a TC the reading head will go to when you press return. You can also move it executives n by typing the = sign then value.

    Russ

  • Static/OSPF Redistribution fails for specific Routes

    Hello

    I have an ASA which is redistribution of static routes in OSPF with a standard access list and a roadmap (seq 10). For the most part, it works very well, however I have a problem where some networks will not redistribute.

    I have a network summary, 172.16.0.0/16 which is redistributed. Another network 172.16.1.0/24 will not redistribute. Other networks like 10.0.0.0/24 will redistribute without any problem.

    I tried to add a list of prefixes to the Roadmap (seq 5) as a test, with 172.16.1.0/24 as the only authorized route, but there is no change.

    When I look into the ospf on the peer OSPF (Nexus 5 k) database, the synthetic route is present, but the more specific route is not.

    I do not use any route filtering and no route-maps / ACL / prefix lists are set to deny.

    Is there a reason that the ASA redistribute a more specific route in OSPF?

    Thank you

    Hello!

    Share your config of ASA, its IP routing table and content LSDB please. In general, if you have redistributed summary, the specific routes referred to in this summary are not required to be redistributed and/or announced.

  • Replacement of specific links to script

    Our company is the subject of a change in name/logo and we have around indesign documents of 1000-1500, who need to have the logo replaced/re-related links.

    I need help creating a script, javascript, which will allow me to recreate a link to about 10 files of different logos to completely different paths with different file names using preferably.   All files located on a windows-based server, and are all our users indesign cs5.0 windows based as well.  I would like the script to loop through a set of links specific logo it will replace any and all instances of former logos with new logos.

    Example of

    K:\poor\directory\structure\sadface\RedCoLogo_White.EPS becomes L:\CompanyLogos\BlueIncLogo_W.eps

    K:\poor\directory\structure\sadface\RedCoLogo_Black.EPS becomes L:\CompanyLogos\BlueIncLogo_B.eps

    K:\poor\directory\structure\sadface\RedCoLogo_Red.EPS becomes L:\CompanyLogos\BlueIncLogo_R.eps

    K:\poor\directory\structure\sadface\RedCoLogo_Green.EPS becomes L:\CompanyLogos\BlueIncLogo_G.eps

    I've tried some premade scripts that use dialogs at the entrance of the old and new path, but I need the script runs without user intervention, so it can batch run by using another script that I found which will open the indesign files in a given directory, run a script, save and close.

    I do not know very well of javascript, but I'm fimiliar with its functioning and its syntax/etc; I've already customized a handful of FindChangeByList scripts to use different txt files and active loop through a number of indesign files.

    Any help would be greatly appreciated.

    Hello

    I added the adjustment options...

    #target InDesign
    
    app.scriptPreferences.userInteractionLevel = UserInteractionLevels.NEVER_INTERACT
    app.activate();
    
    var myFolder = 'L:/CompanyLogos/';
    var toSearch = ['RedCoLogo_White.eps', 'RedCoLogo_Black.eps', 'RedCoLogo_Red.eps', 'RedCoLogo_Green.eps'];
    var toRelink = ['BlueIncLogo_W.eps', 'BlueIncLogo_B.eps', 'BlueIncLogo_R.eps', 'BlueIncLogo_G.eps'];
    
    var inddFiles = Folder.selectDialog ('Please choose folder with *.indd-files').getFiles('*.indd');
    var l = inddFiles.length;
    
     if (l === 0){displayDialog('The selcted folder doesn\'t contain ID-Files'); exit()};
    
    while(l--){
        try{
    app.open(inddFiles[l]);
    var theDoc = app.activeDocument;
    
    var allLinkNames =theDoc.links.everyItem().name;
    
    for(var i = 0; i < toSearch.length; i++)
    {
    var myName = toSearch[i];
    for(var s = 0; s < allLinkNames.length; s++)
    {
    var linkName = allLinkNames[s];
    if    (linkName === myName){
    var newFile = File(myFolder + toRelink[i]);
    
    with(theDoc.links[s]){
        relink(newFile);
    parent.fit(FitOptions.fillProportionally);
    parent.fit(FitOptions.centerContent);
    }
    
            }
        }
            }
    
            theDoc.save();
    theDoc.close();
    
    }catch (e){
        app.scriptPreferences.userInteractionLevel = UserInteractionLevels.INTERACT_WITH_ALL;
        displayDialog(e);
        app.scriptPreferences.userInteractionLevel = UserInteractionLevels.NEVER_INTERACT;
        }
    }
    
    app.scriptPreferences.userInteractionLevel = UserInteractionLevels.INTERACT_WITH_ALL;
    
    function displayDialog(aString){
    var infoWindow = new Window("palette");
    infoWindow.add("statictext", undefined, aString);
    infoWindow.show();
    $.sleep(2000);
    infoWindow.close();
    }
    

    Hope this will work

  • How to make a web specific link to open in Firefox while explorer is my defalut

    Unfortunately, I need to explore to be my default at work.
    But I want to make shortcuts on my desktop to specific Web sites that will be open in firefox.
    (in crome, it is posiball by adding a shortcut to an application)

    To do this, you will need to make copies of Firefox desktop shortcut and add the URL to the target line after the path to the Firefox program. Leave a space before the URL.

    See also:

  • Cannot access a specific link

    Original title:

    I have a problem to go through this link

    It is a local link and unbrowsable.  What makes you think you need?  Port 8889 is not a usual port.  I'd be suspicious of it

  • remove all links is not finding all the links in my document, it works only on specific links?

    I use acrobat pro 10 and remove it all links work is not finding all the links when the document is clearly all links.

    Test thank you screen name!

    I think that I figured it out, I unchecked create hyperlinks from URLS in the preferences.

  • Change the color of specific links

    On a web page, I want to change the color of the links. I found other issues in the Council on this subject, but when I try to their answers, it will not work for me. Can someone tell me how to make these links on white blue background? I have CS5 DW. Here is the page:

    http://www.gaditesmaritime.com/links2.html

    Give thecell link/s is / are in a 'class' (see below), then wrap your link in an anchor tag to actually make a link (see below)

    http://www.bahamasmaritime.com"> www.bahamasmaritime.com".

    Then add your css styles below:

    .blueLinks a {}

    text-decoration: none;

    color: #069;

    }

    .blueLinks a: hover {}

    color: #099;

    }

  • Change specific link path between the documents.

    I write a simple script to change the path for a certain number of links across multiple documents. I get an error "filePath is a read-only property" for the 7 line, even if I'm not trying to rewrite it directly. Any help would be greatly appreciated. Thank you!

    var myDocument = app.activeDocument;
    var oldPath = "G:\\Users\\My PC\\Desktop\\";
    var newPath = "G:\\Users\\My PC\\Desktop\\New Folder\\";
    for (a=0; a < myDocument.links.length; a++) {
        var currentLink = myDocument.links[a];
        var linkName = currentLink.name;
        if (currentLink.filePath = oldPath) {
            var myNewFile = new File(newPath + linkName);
            currentLink.relink(myNewFile);
            };
        }; 
    

    Hi try Cambi code below

    myDocument var = app.activeDocument;

    oldPath var = new File ("C:\\");

    newPath = "E:\\New folder\\"; var

    for (a = 0;< mydocument.links.length;="" a++)="">

    var currentLink = myDocument.links [a];

    var Nom_de_lien = currentLink.name;

    var linkPath = new queue (currentLink.filePath);

    If ((linkPath.parent.toString () == oldPath) {}

    var myNewFile = new File (newPath + linkName);

    currentLink.relink (myNewFile);

    };

    };

  • How to open specific links outside htmlLoader?

    I have an Air application, which loads my site through htmlLoader and allows users to connect and interact with it through the app. My problem is I want some links to open outside the application (IE, in the default browser), but I havn't a clue on how to do it. I tried navigateInSystemBrowser in the htmlLoader class, but for some reason, this opens the home page in the default browser and let my application empty. Any ideas?

    Then, you can use references to dom for your links to detect when the user clicks on a link and you can run code to reload the html page (so the linked html page does not load) and you can use navigateToURL.  for example:

    var htmlLoader:HTMLLoader = new HTMLLoader();

    htmlLoader.width = 300;

    htmlLoader.height = 300;

    addChild (htmlLoader);

    htmlLoader.addEventListener (Event.COMPLETE, completeHandler);

    htmlLoader.load (new URLRequest ("http://www.kglad.com/Files/test/menu.html"));

    function completeHandler(event:Event):void {}

    htmlLoader.window.document.getElementsByTagName ("a") [0] .onclick = clickHandler;

    }

    var t:Timer = new Timer (1,1);

    t.addEventListener (TimerEvent.TIMER, reloadF);

    function clickHandler(e:Object):void {}

    t.Start ();

    htmlLoader.removeEventListener (Event.COMPLETE, completeHandler);

    navigateToURL (new URLRequest (htmlLoader.window.document.getElementsByTagName ("a") [0] .href));

    }

    function reloadF(e:TimerEvent):void {}

    htmlLoader.load (new URLRequest ("http://www.kglad.com/Files/test/menu.html"));

    }

  • Unable to name a specific to a virtual network IP subnet

    My host is running Windows 7 (64 bit) - Enterprise edition and VMware workstation version is "10.0.2 build-1744117.

    I wanted to assign a subnet specific to my VMnet1 (guest only network), by changing the default value. I wanted to put to 192.168.10.0 subnet, the default value is 192.168.154.0. However, I am not able to change, I am able to create a new network virtual host only with the 192.168.10.0 subnet.

    This facility, also features Oracle VirtualBox host install (before installing VMWare). As far as I KNOW, Virtualbox does not 192.168.10.0. Here's what "ipconfig" on my host shows:

    Windows IP configuration

    Wireless Network Connection 2 wireless LAN adapter:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Wireless network connection Wireless LAN adapter:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Ethernet connection to the Local network card:

    The connection-specific DNS suffix. :

    Link-local IPv6 Address...: fe80::24a5:8 has 41: c310:36 12% cd

    IPv4 address...: 192.168.1.2.

    ... Subnet mask: 255.255.255.0.

    ... Default gateway. : 192.168.1.1.

    Network adapter Ethernet VirtualBox:

    The connection-specific DNS suffix. :

    Link-local IPv6 Address...: fe80::20f5:13e3:a53:a273% 20

    IPv4 address...: 192.168.56.1.

    ... Subnet mask: 255.255.255.0.

    ... Default gateway. :

    Ethernet VMware Network adapter adapt VMnet1:

    The connection-specific DNS suffix. :

    Link-local IPv6 Address...: fe80::a0cc:1062:e813:a34d % 27

    IPv4 address...: 192.168.154.1.

    ... Subnet mask: 255.255.255.0.

    ... Default gateway. :

    Ethernet VMware Network adapter adapt VMnet8:

    The connection-specific DNS suffix. :

    Link-local IPv6 Address...: fe80::c10c:ffc2:2e28:8176% 28

    IPv4 address...: 192.168.204.1.

    ... Subnet mask: 255.255.255.0.

    ... Default gateway. :

    Tunnel adapter isatap. {2D203592-7DA6-47C7-82F2-5C84046D2E30}:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Card tunnel Local Area Connection * 12:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Tunnel adapter isatap. {F855E431-EAC8-41E1-A8F3-1854DC7CE659}:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Tunnel adapter isatap. {F054A076-D9DC-4969-BD99-E95898CA14A9}:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Tunnel adapter isatap. {EF306F3A-91CF-4352-B3A4-37F4259C4BB8}:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Tunnel adapter isatap. {CB5437AD-EB6C-4630-95EE-B20AE00E5A8B}:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Tunnel adapter isatap. {20C17CBD-F696-4382-9BA5-D34448EE5BA1}:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Card reusable tunnel ISATAP Interface {A8830BA3-C081-47A7-9104-6CC543A4A59D}:

    State of the media...: Media disconnected

    The connection-specific DNS suffix. :

    Reason of trying to define virtual network of specific subnet configuration is the 'device type' I use the use of this subnet a bit hardcoded. A little bit because it's very complex to change, due to the nature of software inside.

    Welcome to the community,

    In some cases UAC or virusscan/firewall application can block the change. As a first step, start the virtual network in the menu editor start by clicking on the link and select 'Run as Administrator' to see if that solves the problem.

    André

  • Can W520 someone give me a direct link to the network w520 driver

    Hi all I need your help of the lenovo support site seems to have problems with the choice of the model. I need the network driver for my w520. Can anyone pls give me a direct link to the driver. And another thing: Y at - it an Ultrabay Sata adapter that does not have a space for my w520? THX best regards reny

    Support web page seems to be down. What network driver do you need? In addition, the Ultrabay III adapter has a deficit of 3.2 mm. You will need to buy an OEM adapter.

  • Backflip: Is it possible to share links to social networking sites from the browser?

    Hi all. I was playing with my Backflip and that most of the time (apart from some odd questions every now and again). I love how I can post updates from a single blow to all my social networks that I have linked to my Motoblur account. It is quite convenient. I did something similar on my computer browser for a while with the help of an add-on called Yoono. Although one thing I can make sure I did not quite understand yet how can I go on the sharing of links on all of my accounts of social network at the same time? Is it still possible to do so directly, or do I have to use the sharing links on individual pages or copy the link and put in an update? Yoono offers a unique button 'share' which will lead the URL I'm at, capture images of the page, I would add a little descriptive text and then send it to networks no matter what I choose in a single process. It saves time by not requiring no me click every button share for each network and add descriptions for everything. Just click once and it goes to all. In the same way that status updates the work of Motoblur. Given that social network accounts are already synchronized with our phones, I was hoping there would be something like that where I could share a link from the browser or RSS reader app and post the link to all my accounts in a single operation without welding. So are there currently such a thing, or what I have to use a workaround? Thank you!

    Download free browser dolphin of the market app. When using it just click the menu button and it gives options for sharing things on different sites.

Maybe you are looking for