Commands by rootgeek (8)

  • Use this command to view information regarding RSTP (802.1W). Show Sample Output

    show 802-1w
    rootgeek · 2010-03-28 17:54:03 0
  • Okay, Jimmy, the command 'optical-monitor' is needed within the global config. for this command to work (and if supported by your licsense: yada yada, blah, blah). But, like its mad PHAT Kid, you dig? Basically, a Foundry/Brocade switch is reading the Laser light levels just like those Fiber test kits from Owl that cost 4k. I know, I also find it hard to contain myeself ;-) No really..... Show Sample Output

    show optic <slot #>
    rootgeek · 2010-03-26 03:07:22 0
  • You need all those commands, in the sample output. I had some of this, but had to play, add remove, type random stuff like a monkey to finally get this working (clearly those IP's are fake to protect the guilty, and so is the key). Show Sample Output

    aaa authentication login default local tacacs+
    rootgeek · 2010-03-26 02:58:03 0
  • This is how you make sure that ports in a VLAN remain, root ports. Typically, you would use this command on all your Core-1 switch VLAN ports, and then use 'rstp priority 1' on all your Core-2 switches. This is if you have a dual L3 core that is. Show Sample Output

    rstp priority 0
    rootgeek · 2010-03-26 02:51:54 0
  • 'no untag' is applied to _all_ ports under the default VLAN. Otherwise the default VLAN runs untagged over all physical ports. Pretty good idea to 'prune' your VLANs and define which ones pass over and across trunks that carry the default VLAN traffic. Show Sample Output

    no untag
    rootgeek · 2010-03-26 02:45:32 0
  • The sample output, is the command with a ?, to show you all the stuff you can look at. Show Sample Output

    dm ?
    rootgeek · 2010-03-26 02:42:21 0
  • The sample output, is a display of the values you can change, using this command. After a change of of these settings you will need to reload the box, by typing...wait...wait for IT: 'reload'. This comes in handy when working with the RX hardware, for example, which has a base limitation of 32 (RSTP (802-1w) instances. For all of you paying attention that means if you run RSTP on a RX you can only have 32 VLANs. Sure, you can have common groups of VLANs, like back in the day style MSTP, PVST, PVST+ (and all that old STP (802.1d) mess), before "per vlan spanning-tree", RSTP (802-1w), was made. But who wants to do all that? Show Sample Output

    system max <some value>
    rootgeek · 2010-03-26 02:39:00 0

  • -4
    sh default values
    rootgeek · 2010-03-26 02:36:57 0

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for ssh uptime
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Send an email from the terminal when job finishes
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To rip DVD movie to ogg format using ffmpeg, follow these steps. 1) find the vob files on the mounted video DVD in VIDEO_TS that stores the movie itself. There would be a few other VOB files that stores splash screen or special features, the vob files for the movie itself can be identified by its superior size. You can verify these vob files by playing them directly with a player (e.g. mplayer) 2) concatenate all such vob files, pipe to ffmpeg 3) calculate the video size and crop size. The ogg video size must be multiple of 16 on both width and height, this is inherit limitation of theora codec. In my case I took 512x384. The -vcodec parameter is necessary because ffmpeg doesn't support theora by itself. -acodec is necessary otherwise ffmpeg uses flac by default.

Convert from a decimal number to a binary number

get header and footer of file for use with scalpel file carving
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a function to put environment variable in zsh history for editing
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Search some text from all files inside a directory

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Edit all files found having a specific string found by grep
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