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| Question ID 18491 | Which option is the most effective action to avoid packet loss due to microbursts?
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| Option A | Implement larger buffers.
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| Option B | Install a faster CPU.
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| Option C | Install a faster network interface.
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| Option D | Configure a larger tx-ring size.
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| Correct Answer | A |
Explanation Explanation: You can't avoid or prevent them as such without modifying the sending host's application/network stack so it smoothes out the bursts. However, you can manage microbursts by tuning the size of receive buffers / rings to absorb occasional microbursts.
| Question ID 18492 | Refer to the exhibit.
 While troubleshooting high CPU utilization of a Cisco Catalyst 4500 Series Switch, you
notice the error message that is shown in the exhibit in the log file.
What can be the cause of this issue, and how can it be prevented?
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| Option A | The hardware routing table is full. Redistribute from BGP into IGP.
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| Option B | The software routing table is full. Redistribute from BGP into IGP.
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| Option C | The hardware routing table is full. Reduce the number of routes in the routing table.
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| Option D | The software routing table is full. Reduce the number of routes in the routing table.
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| Correct Answer | C |
Explanation Explanation: L3HWFORWADING-2 Error MessageC4K_L3HWFORWARDING-2-FWDCAMFULL:L3 routing table is full. Switching to software forwarding. The hardware routing table is full; forwarding takes place in the software instead. The switch performance might be degraded. Recommended Action: Reduce the size of the routing table. Enter the ip cef command to return to hardware forwarding. Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12- 2/31sg/system/message/message/emsg.html