Term
| What is the maximum amount of bandwidth that EIGRP will use on an interface or subinterface? |
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Definition
| By default, EIGRP used up to 50% of the bandwidth DECLARED on an interface (set by using the bandwidth command) |
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Term
| What command is used to adjust the percentage that EIGRP will use on an interface? |
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Definition
| ip bandwidth-percent eigrp as-number percent |
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Term
| What types of authentication are supported by Cisco routers? |
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Definition
| Simple password authentication (plain text) or MD5 authentication |
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Term
| What command specifies MD5 authentication for EIGRP packets on an interface? |
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Definition
| ip authentication mode eigrp autonomous-system md5 |
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Term
| What command enables the authentication of EIGRP packets with a key specified in a key chain? |
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Definition
| ip authentication key-chain eigrp AS name-of-chain |
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Term
| What command is used to enter the configuration mode of a key chain? |
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Definition
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Term
| What command identifes a key ID to use on a key chain? |
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Definition
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Term
| What command is used to identify a key string (password) for a key? |
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Definition
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Term
| What command can be used to view EIGRP packets that are being received on a router? |
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Definition
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Term
| How can a router that is running EIGRP go into a stuck-in-active state? |
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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. |
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Term
| What command is used to change the default time a router waits for a query reply before going into SIA state? |
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Definition
| timers active-time [minutes| disabled] |
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Term
| What happens when a router goes into a stuck-in-active (SIA) state? |
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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. |
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Term
| How do stub routers handle queries for their respected networks? |
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Definition
| Stub routers are not queried. Instead, the hub routers connected to the stub router answer the query on behalf of the stub router. |
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Term
| What is the command used to configure a router as a EIGRP stub router? |
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Definition
eigrp stub [receive-only | connected | static | summary]
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Term
| How are goodbye messages used with routers that are running EIGRP? |
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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. |
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Term
| Which command provides a detailed display of EIGRP neighbors? |
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Definition
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Term
| What command displays information about interfaces configured for EIGRP? |
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Definition
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Term
| What command is used to display information about the EIGRP topology? |
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Definition
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Term
| What command can be used to display the number of various EIGRP packets sent and received on router? |
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Definition
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Term
| What is the difference between an EIGRP packet's sequence number and it's serial number? |
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Definition
| The sequence number increments each time a query, update, or reply is sent. The serial number increments each time the topology table changes. |
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Term
| What command is used to configure the delay on a specific interface? |
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Definition
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Term
| What is the formula used to calculate the metric for a route when only the default options of bandwidth and delay are used? |
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Definition
Formula - 256*(BW+Delay) BW=10^7/BW Delay=Delay in 10's of microseconds |
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Term
| What type of routes are sent out of an stub network by default? |
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Definition
| A stub network will only send out routes that are directly connected or summarized by default. |
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