ADTRAN ISU 2X64 user manual PPP Menu Tree

Chapter 6. Configuration

When originating calls to unknown units, the ISU begins its pro- tocol selection based on its local Call Type. (Data 64k is used for FALLBACK when selected from the Quick Setup menu.) Upon connection at 64k Call Type, BONDING, V.120, and PPP are attempted. If connection is not made at 64k, the ISU attempts another call at 56k Call Type. If the protocol cannot be negoti- ated, the ISU hangs up the call.

Point-to-Point (PPP) Async-to-Sync

PPPprovides a standard method for transporting multi-protocol datagrams over point-to-point links. The ADTRAN PPP async- sync protocol allows the ISU 2X64 and a PC or Macintosh® run- ning PPP software, to communicate with a PPP-compatible bridge or router. The PPP async-sync protocol complies with Internet Engineering Task Force (IETF) RFC 1662. The menu path to select PPP is shown in Figure 6-23.

The asynchronous control character map (ACCM) option is scanned during the negotiation. When the ACCM option is seen in a configure ACK link control packet, it is adopted by the ISU 2x64. In addition, when the ACCM option is not seen in the con- figure-request packet from the network, the ISU 2x64 will add it to the packet.

3=CONFIG

1=Clear Channel

1=Netw. options	2=BONDING mode 1
2=DTE options	3=V.120
3=Protocol	4=V.110
4=Quick setup	5=DSU 57.6 ASYNC
5=Security	6=T-LINK
6=Remote Config	7=SAP
	8=FALLBACK
	9=PPP async-sync	1=PPP
		2=Multilink PPP
		3=PPP w/Comp
		Figure 6-23
		PPP Menu Tree

61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual 61