What is the default maximum transmission unit on the Cisco router ATM interface?

The correct answer is A. 4470 bytes. Why are MTUs 4470 Bytes? Most Cisco ATM router interfaces use a default MTU size of 4470 bytes. This number was chosen to match exactly Fiber Distributed Data Interface (FDDI) and High-Speed Serial Interface (HSSI) interfaces for autonomous switching.

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Question

Options

A4470 bytes
B1516 bytes
C9288 bytes
D1500 bytes
E1492 bytes

How the community answered

(40 responses)

A
78% (31)
B
3% (1)
C
13% (5)
D
5% (2)
E
3% (1)

Explanation

Why are MTUs 4470 Bytes? Most Cisco ATM router interfaces use a default MTU size of 4470 bytes. This number was chosen to match exactly Fiber Distributed Data Interface (FDDI) and High-Speed Serial Interface (HSSI) interfaces for autonomous switching.

Topics

#ATM#MTU#interface defaults#WAN

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