HDLC - High level data link control used in conjunction with Networking protocols like PPP (point-to-point) protocol. According to RFC 1662, PPP uses HDLC like frame by providing address and control fields. For PPP these fields are constants 0xFF and 0x03.
1. Frame Relay 2. HDLC 3. PPP
Frame Relay/ATM/PPP Internet Service Provider PSTN
The most common WAN data-link protocols are: 1. HDLC 2. PPP 3. Frame Relay 4. ATM
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Differences between HDLC and PPP are(1) HDLC is cisco proprietary while PPP is an open standard.(2) HDLC does not provide authentication while PPP provides authentication like PAP and CHAP.(3) HDLC does not support compression while PPP support compression.(4) HDLC supports synchronous networks only while PPP supports both synchronous and asynchronous networks.
The function of multi-link PPP is that it allows an enterprise to connect to multiple ISPs.
PPP is point to point protocol. It does single channel network links, usually over a long distance, or a VPN. The program that sets up and manages PPP connections is pppd.
GovernmentFederal Parliamentary republic - FounderMuhammad Ali Jinnah - PresidentAsif Zardari (PPP) - Prime MinisterYousaf Gillani (PPP) - Chief JusticeIftikhar Chaudhry - Chair of SenateFarooq Naek (PPP)
Serial interfaces do not pass any MAC information because the information is formed using WAN encapsulation (PPP. HDLC, Frame Relay).
You can find information on PPP Health Insurance also known as Preferred Property Program, on many company websites that sell this type of insurance. These companies include AXA PPP Healthcare, AXA PPP International, and Protector Plan.
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