Selecting the link layer protocol – Paradyne ACCULINK 317x E1 User Manual

Page 38

ACCULINK 317x E1 DSU/CSU

3-16

December 1996

3170-A2-GB20-20

10. When you are through changing the IP address,

you must press F3 (Save) to save the value.
Otherwise, the original value will be retained.

010.155.111.222
Up

Down

Save

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 or network
device (e.g., a router). PPP can be used for synchronous or
asynchronous operation. SLIP can be used for
asynchronous operation only.

The E1 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 E1 DSU/CSU will attempt to
negotiate down to 500 bytes.

•

The E1 DSU/CSU provides a unique LCP magic
number derived from the unit serial number and the
elapsed time.

•

Full negotiation of escape characters.

The E1 DSU/CSU implementation of PPP does not

support Link Quality Reports (LQR), compression,
encryption, Password Authentication Protocol (PAP) or
Challenge Authentication Protocol (CHAP).

The E1 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 the
Selecting the Port section on page 3-14. This example
assumes that the COM port is being used as the
communications link.

To select the link layer protocol,

1. Press F3 to select Cnfig from the top-level menu

screen.

2. Select the configuration option set to be copied

into the Edit area by using the appropriate
Function key. Use the scroll keys, if necessary.

3. Press F1 to select Edit.

4. Press the

key from the Edit screen to display

the SNMP selection.

5. Press F3 to select SNMP.

Edit:
User

Alarm SNMP

6. Press F1 to select Gen from the SNMP Config

screen.

SNMP Config:
Gen

Trap

7. Press F1 (Next) until the Com Link configuration

option appears.

8. Press F2 (PPP) or F3 (SLIP).

Com Link:
Next

PPP

SLIP