Term
| What are the 3 main parts that make up a network entity title (NET) address? |
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Definition
1. The area address (prefix), which identifies the area that the rtouer is a part of 2. The system ID, which uniquely identifies each device. 3. The NSEL, which must be 0 |
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Term
| Why can it be difficult to troubleshoot IP address misconfiguration with IS-IS? |
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Definition
| The IS-IS neighbor relationships are established over OSI CLNS, not over IP. Because of this approach, 2 ends of a CLNS adjacency can have IP addresses on different subnets, with no impact on the operation of IS-IS. |
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Term
| What command is used to enable CLNS routing on a router set to use IS-IS? |
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Definition
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Term
| By default, at what level does an IS-IS router run at? |
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Definition
| By default, the Cisco IOS makes the router an L1/L2 router. |
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Term
| What command is used to specify the level that the IS-IS router will operate at? |
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Definition
| is-type {level-1 | level-1-2 | level-2-only} |
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Term
| What command is used to configure an interface to only send out hello messages in regards to it operating level? |
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Definition
isis circuit-type {level-1 | level-1-2 | level-2-only}
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Term
| What command is used to change the default metric of an interface running IS-IS? |
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Definition
| isis metric metric [delay-metric [expense-metric[error-metric]]]{level-1 | level-2} |
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Term
| What 4 different types of metrics can be used with IS-IS? |
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Definition
1. Cost, which is the default 2. Delay, which measures transit delay 3. Expense, which measures the monetary cost of link utilization 4. Error, which measures residual error probability associated with a link. |
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Term
| What command can be used to change the default metric value for all IS-IS interfaces on a router? |
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Definition
| metric default-value {level-1 | level-2} |
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Term
| What command is used to create summary addresses on routers that are running IS-IS? |
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Definition
| summary-address address netmask [level-1 | level-2 | level-1-2] [tag tag-number] [metric metric-value] |
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Term
| What is the default level of a summarized route on a router that is running IS-IS? |
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Definition
| The default level is a L2 route. |
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Term
| What command is used to display general information about the CLNS network? |
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Definition
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Term
| What command is used to display information for the specific IS-IS processes in the router? |
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Definition
| show clns [area-tag] protocol |
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Term
| What command is used to display information about the interfaces that currently run CLNS? |
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Definition
| show clns interface [type number] |
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Term
| What command is used to display IS and ES neighbor information? |
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Definition
| show clns [area-tag] neighbors [type number] [detail] |
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Term
| What command is used to display the IS-IS L1 routing table? |
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Definition
| show isis [area-tag] route |
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Term
| What command is used to display the IS-IS L2 routing table? |
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Definition
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Term
| What command is used to display the contents of the IS-IS LSDB? |
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Definition
| show isis [area-tag] database |
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Term
| What command is used to display the L1 and L2 topology tables? |
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Definition
| show isis [area-tag] topology |
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