Shared Flashcard Set

Details

BSCI - EIGRP Pt.3
BSCI - EIGRP Pt.3
23
Engineering
Graduate
03/22/2008

Additional Engineering Flashcards

 


 

Cards

Term
What is the maximum amount of bandwidth that EIGRP will use on an interface or subinterface?
Definition
By default, EIGRP used up to 50% of the bandwidth DECLARED on an interface (set by using the bandwidth command)
Term
What command is used to adjust the percentage that EIGRP will use on an interface?
Definition
ip bandwidth-percent eigrp as-number percent
Term
What types of authentication are supported by Cisco routers?
Definition
Simple password authentication (plain text) or MD5 authentication
Term
What command specifies MD5 authentication for EIGRP packets on an interface?
Definition
ip authentication mode eigrp autonomous-system md5
Term
What command enables the authentication of EIGRP packets with a key specified in a key chain?
Definition
ip authentication key-chain eigrp AS name-of-chain
Term
What command is used to enter the configuration mode of a key chain?
Definition
key chain name-of-chain
Term
What command identifes a key ID to use on a key chain?
Definition
key key-id
Term
What command is used to identify a key string (password) for a key?
Definition
key-string key
Term
What command can be used to view EIGRP packets that are being received on a router?
Definition
debug eigrp packets
Term
How can a router that is running EIGRP go into a stuck-in-active state?
Definition
If a router does not receive a reply to all the outstanding queries within 3 minutes, the route goes to the stuck-in-active (SIA) state.
Term
What command is used to change the default time a router waits for a query reply before going into SIA state?
Definition
timers active-time [minutes| disabled]
Term
What happens when a router goes into a stuck-in-active (SIA) state?
Definition
When a router goes to SIA state, the router resets the neighbor relationships for the neighbors that failed to reply. This causes the router to recompute all routes known through that neighbor and to re-advertise all the routes it knows about to that neighbor.
Term
How do stub routers handle queries for their respected networks?
Definition
Stub routers are not queried. Instead, the hub routers connected to the stub router answer the query on behalf of the stub router.
Term
What is the command used to configure a router as a EIGRP stub router?
Definition
eigrp stub [receive-only | connected | static | summary]
Term
How are goodbye messages used with routers that are running EIGRP?
Definition
Goodbye messages are sent in hello packets. They inform a router's neighbors that its EIGRP process is going down, so that the neighbors can adjust their routes accordingly.
Term
Which command provides a detailed display of EIGRP neighbors?
Definition
show ip eigrp neighbors
Term
What command displays information about interfaces configured for EIGRP?
Definition
show ip eigrp interfaces
Term
What command is used to display information about the EIGRP topology?
Definition
show ip eigrp topology
Term
What command can be used to display the number of various EIGRP packets sent and received on router?
Definition
show ip eigrp traffic
Term
What is the difference between an EIGRP packet's sequence number and it's serial number?
Definition
The sequence number increments each time a query, update, or reply is sent. The serial number increments each time the topology table changes.
Term
What command is used to configure the delay on a specific interface?
Definition
delay micro-seconds
Term
What is the formula used to calculate the metric for a route when only the default options of bandwidth and delay are used?
Definition

Formula - 256*(BW+Delay)

 

BW=10^7/BW

Delay=Delay in 10's of microseconds 

Term
What type of routes are sent out of an stub network by default?
Definition
A stub network will only send out routes that are directly connected or summarized by default.
Supporting users have an ad free experience!