NS0-165: NetApp Certified Data Administrator, ONTAP

By Netapp · Question Mode

QuestionQ33

Networking

You recently configured a new SVM and enabled jumbo frames (MTU 9000) in NetApp ONTAP software and on the clients. However, some clients experience timeouts or reduced performance when accessing the system. You use the ping -lif NAME -vserver NAME -destination CLIENTIP -disallow-fragmentation true -packet-size XXX command to test the network path for jumbo frames.

What value must be specified for the packet-size parameter?

Explanation

For an MTU of 9000 bytes, the ICMP payload must be 8,972 bytes because the IPv4 header and ICMP header consume 28 bytes in total. Using 8,972 bytes produces a 9,000-byte packet and, with fragmentation disabled, verifies that the entire path supports jumbo frames. NetApp documents that -packet-size specifies the data bytes sent in the ping packet.

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