4. Configuration
3160-A2-GB24-10
March 2001
4-17
Selecting the Link Layer Protocol
Two link layer protocols, Point-to-Point Protocol (PPP) and Serial Line Internet
Protocol (SLIP), are supported for connection to an external SNMP manager,
Telnet device, or network device (e.g., a router). PPP can be used for synchronous
or asynchronous operation. SLIP can be used for asynchronous operation only.
NOTE:
The carrier-mounted DSU/CSU does not support synchronous operation on
the COM port.
The standalone DSU/CSU implementation of PPP supports the following:
Full negotiation of PPP’s Link Control Protocol (LCP).
Active negotiation of LCP when the connection is established.
Maximum Request Unit (MRU) sizes up to 1500 bytes, but the DSU/CSU will
attempt to negotiate down to 500 bytes.
The DSU/CSU provides a unique LCP magic number derived from the unit
serial number and the elapsed time.
Full negotiation of escape characters.
The DSU/CSU implementation of PPP does not support Link Quality Reports
(LQR), compression, encryption, Password Authentication Protocol (PAP) or
Challenge Handshake Authentication Protocol (CHAP).
The DSU/CSU implementation of SLIP supports a fixed MRU size of 1006 bytes.
Before selecting the protocol, you must first select the port to be used as the
communications link. Refer to
Selecting the Port
on page 4-14. This example
assumes that the COM port is being used as the communications link.
Summary of Contents for 3165
Page 14: ...Contents viii March 2001 3160 A2 GB24 10 ...
Page 18: ...About This Guide xii March 2001 3160 A2 GB24 10 ...
Page 26: ...1 Introduction 1 8 March 2001 3160 A2 GB24 10 ...
Page 38: ...2 Installation 2 12 March 2001 3160 A2 GB24 10 ...
Page 54: ...3 Using the Front Panel 3 16 March 2001 3160 A2 GB24 10 ...
Page 102: ...4 Configuration 4 48 March 2001 3160 A2 GB24 10 ...
Page 110: ...5 Security 5 8 March 2001 3160 A2 GB24 10 ...
Page 162: ...8 Testing 8 24 March 2001 3160 A2 GB24 10 ...
Page 164: ...A Front Panel Menu A 2 March 2001 3160 A2 GB24 10 ...
Page 222: ...D Configuration Worksheets D 14 March 2001 3160 A2 GB24 10 ...
Page 240: ...E Pin Assignments E 18 March 2001 3160 A2 GB24 10 ...
Page 272: ...F SNMP MIB Objects F 32 March 2001 3160 A2 GB24 10 ...
Page 280: ...G IP Network Addressing Scenarios G 8 March 2001 3160 A2 GB24 10 ...
Page 300: ...J Equipment List J 2 March 2001 3160 A2 GB24 10 ...