350-001 Cisco Certified Internetworking Expert Testking Exam

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350-001 Cisco Certified Internetworking Expert

Note 1: 350-001 Exhibit and all related diagrams are not shown in demo questions.
Note 2: 350-001 Answers are not shown in demo questions.
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Demo Question 6.

You are troubleshooting a frame relay problem with the serial0 interface on one of your EliteCertify routers. When the interface is brought up, it stays up for a short time before it goes back down. You issue the show interface command, and from this you can see that your interface shows LMI status messages sent, but none received. What could be the problem?

A. There are too many input errors on the line.
B. The Frame-Relay lmi-type is set incorrectly.
C. Too many sub-interfaces are exceeding IDB limits.
D. The DCD not set correctly for a Frame-Relay circuit.
E. Keepalives are not set correctly on both ends.

Display Answer

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Answer: B

Explanation: In a frame relay configuration, the router's interface always assumes that the connection is up first. Only after missing three consecutive LMI status messages will the interface go down. This explains why the interface shows an "up" status for a short time before going back down. In this case the counters for LMI sent is increasing while the counters for LMI rcvd is still 0. This clearly indicates a case of misconfigured LMI type. For a detailed discussion on how to troubleshoot serial lines, refer the link below. http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1915.htm#xtocid195571 Incorrect