Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 238
After implementing EIGRP on your network, you issue the show ip eigrp traffic command on router C. The following output is shown:
RouterC#show ip eigrp traffic -
IF-EIGRP Traffic Statistics for process 1
Hellos sent/received: 481/444 -
Updates sent/received: 41/32 -
Queries sent/received: 5/1 -
Replies sent/received: 1/4 -
Acks sent/received: 21/25 -
Input queue high water mark 2, 0 drops
SIA-Queries sent/received: 0/0 -
SIA-Replies sent/received: 0/0 -
Approximately 25 minutes later, you issue the same command again. The following output is shown:
RouterC#show ip eigrp traffic -
IP-EIGRP Traffic Statistics for process 1
Hellos sent/received: 1057/1020 -
Updates sent/received: 41/32 -
Queries sent/received: 5/1 -
Replies sent/received: 1/4 -
Acks sent/received: 21/25 -
Input queue high water mark 2, 0 drops
SIA-Queries sent/received: 0/0 -
SIA-Replies sent/received: 0/0 -
Approximately 25 minutes later, you issue the same command a third time. The following output is shown:
RouterC#show ip eigrp traffic -
IP-EIGRP Traffic Statistics for process 1
Hellos sent/received: 1754/1717 -
Updates sent/received: 41/32 -
Queries sent/received: 5/1 -
Replies sent/received: 1/4 -
Acks sent/received: 21/25 -
Input queue high water mark 2, 0 drops
SIA-Queries sent/received: 0/0 -
SIA-Replies sent/received: 0/0 -
What can you conclude about this network?
Answer options
- A. The network has been stable for at least the last 45 minutes.
- B. There is a flapping link or interface, and router C knows an alternate path to the network.
- C. There is a flapping link or interface, and router A does not know an alternate path to the network.
- D. EIGRP is not working correctly on router C.
Correct answer:
Explanation
The correct answer is A because the statistics show that the hello packets have steadily increased without any significant changes in updates, queries, or replies, indicating network stability. Options B and C suggest issues with link flapping, which is not supported by the consistent traffic patterns. Option D is incorrect as EIGRP is functioning properly, evidenced by the periodic hello messages.