PPP uses HDLC for datagram encapsulation?
creamy_stew
Member Posts: 406 ■■■□□□□□□□
in CCNA & CCENT
Hi all!
I've been using the Boson practice exams, and I came across this question:
Which of the following statements are true regarding PPP? And one of the correct answers was "PPP uses HDLC for datagram encapsulation"
I looked into it and while some places mention that PPP over _serial links_ uses an "HDLC-like" encapsulation this answer doesn't sit quite right with me. E.g. isn't "datagram" a layer 3 entity? Also, as mentioned above, the HDLC-likeness seems to only apply to serial links.
Please enlighten me
I've been using the Boson practice exams, and I came across this question:
Which of the following statements are true regarding PPP? And one of the correct answers was "PPP uses HDLC for datagram encapsulation"
I looked into it and while some places mention that PPP over _serial links_ uses an "HDLC-like" encapsulation this answer doesn't sit quite right with me. E.g. isn't "datagram" a layer 3 entity? Also, as mentioned above, the HDLC-likeness seems to only apply to serial links.
Please enlighten me
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tim100
Member Posts: 162
creamy_stew wrote: »Hi all!
I've been using the Boson practice exams, and I came across this question:
Which of the following statements are true regarding PPP? And one of the correct answers was "PPP uses HDLC for datagram encapsulation"
I looked into it and while some places mention that PPP over _serial links_ uses an "HDLC-like" encapsulation this answer doesn't sit quite right with me. E.g. isn't "datagram" a layer 3 entity? Also, as mentioned above, the HDLC-likeness seems to only apply to serial links.
Please enlighten me
Check out rfc1662:
http://www.ietf.org/rfc/rfc1662.txt