User manual

Wide Bank 28 DS3 - Release 2.4 July 2004 6-17
Configuration
Basic Configuration
IP Routing With Point-to-Point Protocol (PPP)
PPP routing provides an IP connection over the DS3 C-bit data link that can be used for
management instead of the Ethernet port. For example, a local (near end) Wide Bank
configured with an IP PPP setting will route any IP packets destined for the PPP
address along the C-bit PPP data link to the remote (far end) Wide Bank 28 DS3. The
near-end Wide Bank will also handle routing of upstream IP traffic from the far-end
Wide Bank 28 DS3.
IP over PPP Applications
These IP applications will function over the PPP link:
 TFTP
 SNMP
 TELNET
 PING
 TL1
Configuring DS3
The following command (the ds3 command without parameters) displays the DS3
configuration settings. For details and parameters for the ds3 command, see Chapter 8. The
following examples show the difference between M23 framing and C-bit framing.
CAUTION! IT IS STRONGLY RECOMMENDED THAT THE DS3 CLOCK SOURCE
BE SET TO "INTERNAL" TIMING. THE WIDE BANK 28 DS3 IS AN ASYNCHRONOUS
MULTIPLEXER. ASYNCHRONOUS COMMUNICATIONS DO NOT REQUIRE A COMMON
CLOCK BETWEEN THE COMMUNICATING DEVICES. CHANGING THE CLOCK
SOURCE TO "LINE" CAN DISRUPT SERVICE AND CAUSE DS1 TIMING SLIPS.
The following example shows the response when configured for M23 framing.
(A:Active)> ds3
- DS3
ds3 circuitid "steve"
ds3 clock int
ds3 clockrevert on
ds3 equipment off
ds3 framing m23
ds3 length short
ds3 line off
ds3 loopdetect off
ds3 payload off
ds3 send off
ds3 threshold off