Foundation Summary
The Foundation Summary provides a convenient review of many key concepts in this chapter. If you are already comfortable with the topics in this chapter, this summary might help you recall a few details. If you just read this chapter, this review should help solidify some key facts. If you are doing your final prep before the exam, the following lists and tables are a convenient way to review the day before the exam.
Table 10-10 summarizes the commands covered in this chapter.
| Command | Function |
|---|---|
| Router(config)#router isis | Starts IS-IS on the router |
| Router(config-router)#net network-address | Defines the NET address |
| Router(config-router)#is-type level-1|level-2 | Defines the router as Level 1 or Level 2 |
| Router(config-router)#summary-address address mask | Enables you to summarize the networks manually |
| Router(config-if)#frame-relay map ip destination address DLCI broadcast | Maps the Frame Relay DLCI to the destination IP address |
| Router#show clns neighbor detail | Displays information drawn from the neighbor table |
| Router#show clns interface | Displays information about IS-IS Hello and timers |
| Router#show isis database | Shows the link-state database |
| Router#show isis spf-log | Shows why and how often the SPF algorithm was recalculated |
Table 10-11 shows the debug commands discussed in this chapter.
| Command Option | Description |
|---|---|
| debug isis adjacencies-packets | Displays information on all adjacency-related activity. |
| debug isis spf-statistics | Displays statistical information about building routes between routers. Using the statistical information provided, one can determine how long it takes to place a Level 1 IS or Level 2 IS on the shortest path tree (SPT) using the IS-IS protocol. |
| debug isis update-packets | Displays SNPs (CSNPs and PSNPs) and LSPs that are detected by the router. |
