Which two support tunneling for non-IP protocols on Junos devices? (Choose two.)
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A. B. C. D.BC
The correct answers are A. ATM AAL2 and B. GRE.
A. ATM AAL2: Asynchronous Transfer Mode (ATM) is a protocol for transmitting data over a cell-based network. ATM Adaptation Layer 2 (AAL2) is a protocol used for transmitting voice and video traffic over ATM networks. Junos devices support tunneling for non-IP protocols such as AAL2.
B. GRE: Generic Routing Encapsulation (GRE) is a protocol used for encapsulating a wide variety of network layer protocols inside virtual point-to-point links over an IP network. GRE is used for tunneling non-IP protocols such as IPX and AppleTalk. Junos devices also support GRE tunneling for non-IP protocols.
C. IP-IP: IP-IP is an IP tunneling protocol used for encapsulating IP packets inside other IP packets. It is used for routing IP traffic over a network that does not support IP natively. However, IP-IP is used only for tunneling IP traffic and not non-IP protocols.
D. ATM AAL1: ATM AAL1 is a protocol used for transmitting constant bit rate traffic such as voice and video over ATM networks. However, Junos devices do not support tunneling for non-IP protocols such as AAL1.
In summary, Junos devices support tunneling for non-IP protocols using protocols such as ATM AAL2 and GRE.