Cabletron Systems HSIM-W6 User Manual
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Chapter 2: About the HSIM-W6
HSIM-W6 User’s Guide
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Dynamic Host Configuration Protocol (DHCP) as defined by RFC 1541
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Network Address Translation (NAT) routing as defined by RFC 1631
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Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol
(CHAP) under PPP as defined by RFC 1994
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Point-to-Point Protocol Line Quality Monitoring (LQM) as defined by RFC 1333
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Point-to-Point Protocol Multilink Protocol (MP) as defined by RFC 1717
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Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) as defined by Q.921/
Q.931
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Frame Relay Link Management Interface (LMI) as defined by ANSI T1.617 Annex D and ITU
Q.933 Annex A
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Frame Relay Data Encapsulation as defined by RFC 1490
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Frame Relay Data Compression Protocol (DCP) as defined by FRF.9
PPP is a data link layer industry standard WAN protocol for transferring multi-protocol data traffic
over point-to-point connections. With this protocol, options such as security, data compression,
and network protocols can be negotiated over the connection.
Frame Relay is a packet-switching data communications protocol that statistically multiplexes
many data conversations over a single transmission link. Data compression allows Frame Relay to
negotiate compression over Frame Relay permanent virtual circuits (PVCs)
ISDN BRI is a switched Data Link layer control protocol which uses digital signaling to place a
call into an ISDN network. Once the call is made, PPP is then used to transfer data.