Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


OSPF & ISIS Fundamentals & BGP Overview

OSPF routers elect one special router and a backup one known as? Designated Router (DR) Designated Backup Router (DBR)
What two Link State Advertisements are limited to flooding within the originating area? LSA 1 - Router LSA LSA 2 - Network LSA Both limited to flooding within the origination area.
What two LSA's can flood to external areas? LSA 3 - Network Summary LSA --Sent by Area Border Router to single attached area LSA 4 - ASBR Summary LSA --Sent by Autonomous System Border Router. Advertises exit point of the areas to external areas. Only sent between other ASBRs.
What LSA injects prefixes originated from other routing protocols into the OSPF domain? LSA 5 - External LSA --Originated by ASBR. Flooded to all areas and all internal routers. Advertise a destination external to the OSPF.
What is IP Prefix Redistribution? Process of inserting routing information into a protocol from outside?
How do ISIS routers routing information? LSPs = Link State PDUs
When do routers move from Neighbors to being Adjacent? Once both LSDs (Link State Databases) are synchronized and identical then the routers become adjacent.
What special address is used by ISIS systems? Two general divisions? NSAP - Network Service Access Protocol 1) IDP = Initial Domain Part 2) DSP = Domain Specific Part
3 Parts of simplified NSAP Address? Area ID - Identifies area that IS belongs to SysID = Identifies IS System itself NSEL = NSAP Selector = Similar to TCP/UDP Port #
What is BGP? An inter-Autonomous System routing protocol
When is i-BGP applicable? When BGP is used to connect other BGP routers within the same autonomous system. If BGP routers are in different systems, e-BGP is used.
Created by: glarsen117
Popular Engineering sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards