By Brent Stewart
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Show ip protocols displays information about the current routing protocols, such as autonomous system and timer values. Troubleshooting routing issues can be summarized by answering three basic questions: 1. Is the correct route advertised? 2. Is the correct route communicated? 3. Is there a more desirable path (lower AD or longer prefix length)? EIGRP After determining that there is a routing problem in EIGRP using the routing table or ping, follow the three basic steps to troubleshooting. EIGRP stores information in three tables that can be interrogated.
Finally, Netflow exports information to a target IP address. The commands to accomplish these actions are shown here: © 2010 Pearson Education, Inc. All rights reserved. This publication is protected by copyright. Please see page 69 for more details. [ 42 ] CCNP TSHOOT 642-832 Quick Reference CHAPTER 3 by Brent Stewart Troubleshooting Tools (config-if)#ip flow ingress (config)#ip flow-export version [5|9] (config)#ip flow-export destination [ip-address] In addition to using a monitoring system to track Netflow, an administrator can also peek into the current flows using show ip cache flow.
Show buffer also shows a buffer leak, here by looking at the number of free buffers. Finally, memory leaks are sometimes seen in BGP, which is a heavy consumer of memory in the best of times, so a memory leak here can quickly bloom into a larger issue. show process memory | include bgp shows the memory utilization of the four BGP processes. show diag can be used to evaluate memory used on the line cards. © 2010 Pearson Education, Inc. All rights reserved. This publication is protected by copyright.