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Center for Applied Internet Data Analysis > projects : itl : itl_faq.xml
This ITL FAQ was developed to help you with your set-up and installation of a CAIDA Internet Teaching Lab. This FAQ is a living document, which means we welcome your input on the contents and information presented. If you have any questions or comments, please send them to


Q. How do we communicate with other ITL sites?
A. Send mail to

Q. Is there any documentation that comes with the routers?
A. None of the routers will have printed documentation. You can access the Cisco documentation at their website. The main documentation home page (UniverCD):
  • Hardware manuals for the Cisco 7000:
  • Software configuration manuals:
  • Q. What are other ITL sites or similar labs doing?
    A. Check the following links to get ideas for your ITL site.
  • Software

    Q. What IOS image is on the routers?
    A. There will be two separate IOS images, one in flash, one in ROM, and it's reasonably likely that they will be different versions.

    Q. What is the largest IOS image we can put on the routers?
    A. The routers have 4M-bytes of space on board, and have a PC card slot for external storage of images. There should be plenty of memory space on the routers, so this should not be an issue for ITL sites.

    Q. Where can I get the IOS images for the routers?
    A. As part of our project, Cisco has agreed to allow us access to current IOS images. We are currently in the process of obtaining accounts for each ITL site from Cisco to allow us to download the available IOS images.

    Q. Where can I get a TFTP server for win9*/NT?
    A. Most of the infomation can be found on the following webpage:
  • Q. Which brand of Flash cards will work in the routers?
    A. Any Intel Series 2+ Flash memory card can be used with the RP. For more info you should read the following webpage. We are purchasing one card per ITL site, but if you would like a back up feel free to purchase one.
  • (Expired Link)
  • Hardware

    Q. What is the proper turn-on sequence?
    A. The power supplies can be turned on in any order.

    Q. What is the proper turn-off sequence?
    A. If the desired configuration is written to nonvolatile RAM using the "write" command, it is okay to turn off the power.

    Q. How can we connect the routers to other machines?
    A. The donations from C&W did not include Ethernet interfaces. There are several options for this such as FDDI to Ethernet bridge, but we would like to choose the option that all sites can afford and find.

    Q. What are the physical specifications of the router?
    A. Most of the infomation can be found on the following webpage:
  • Q. What are the physical dimensions (H x W x D) of the routers?
    A. The physical dimensions are:
  • 19.25 x 17.5 x 25.1" (48.90 x 44.45 x 63.75 cm)
  • Q. How heavy are the routers?
    A. The exact specifications can be obtained via the url above.
  • Chassis only: 76 lb (34.47 kg)
  • Chassis fully configured with 1 RP, 1 SP (or SSP), 5 interface processors, and 2 power supplies: 145 lb (65.76 kg)
  • Q. Do the routers come with AC power supplies?
    A. Each of the routers comes with two redundent AC power supplies. The exact specifications can be obtained via the url above.

    Q. Why doesn't my power cord fit into the power supplies?
    A. The Cisco power supplies require a "special" power cord (CAB-7KAC). Don't loose the ones we send you! In case you do lose it or it is damaged, go to:
  • Q. Do we need air-conditioning?
    A. It is strongly recommended since heat dissipation of the routers is 1200W (4100 BTU/hour)
  • Q. What kind of mounting hardware do we need for the routers?
    A. The original sites had the routers mounted using third party brackets.
  • 1" X 1" bracket
  • 19" long
  • 1/4" holes, starting 1/2" from the top
  • 3" from the top of one hole to the top of the next
  • Q. Will we be supplied with Ethernet connections?
    A. None of the routers will have Ethernet ports.

    Q. What is a MIP card?
    A. A MIP card is needed when an external CSU is available or being used.
  • Q. What cables do we need to set up a basic configuration with three routers?
    A. You will need the following cables:
  • 3 FDDI cables with MIC connectors
  • 1 Cisco Console serial cable
  • 6 Cisco Power cables
  • Q. Can we connect two routers without using the CSU/DSUs?
    A. Yes. The FSIP cards can be connected to each other via a serial null cable.

    Q. What are Cabling pin outs?
    A. Most of the infomation can be found on the following webpage:
  • Q. Can the routers be turned off when not in use without hurting them?
    A. Configurations need to be written to nvram not flash. Configurations can optionally be backed up to the flash, but that's not a useful place for them, since it can't boot from a configuration in flash.

    Q. Once everything is properly connected, what do I do next?
    A. A basic startup description can be found here:
  • Q. How do I access the router if I have forgotten the password?
    A. If you loose access to the password you can override the boot process by moving a jumper on the processor board. And then overwrite the startup-config file.

    Q. How do I set the boot jumpers?
    A. You can find the information on the following web page:
  • Q. How do you install and configure a Cisco 7000 router?
    A. Most of the infomation can be found on the following webpage:
  •   Last Modified: Tue Oct-13-2020 22:21:40 UTC
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