Serial Encapsulation

njcowboynjcowboy Member Posts: 42 ■■□□□□□□□□
Can someone verify this?

** I think I found the answer

Frame-Relay, HDLC and PPP all support multiple protocols


I am going over my notes, but can't find it anywhere

HDLC is cisco proprietary and default serial encap

encap frame by default uses cisco encapsulation, not ietf

There is nothing else to configure with PPP

LMI-Type is Cisco, Ansi or Q933A with cisco as default

Comments

  • NetstudentNetstudent Member Posts: 1,693 ■■■□□□□□□□
    frame-relay can support more than just IP. Read RFC 1490. It explains how frame-relay encasulates different routed protocols. It talks about a NLPID fileds which i believe is network layer prtotcol ID.

    HDLC is default encap. for a serial link. Cisco's version of HDLC is proprietary as all other vendor's version of HDLC.

    Each vendor has their own way of indentifying the routed protcol with a protocol type field.

    PPP can have CHAP which is extra config. Also PPP multilink would need extra configs. It just depends I guess.
    There is no place like 127.0.0.1 BUT 209.62.5.3 is my 127.0.0.1 away from 127.0.0.1!
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