Northern UTA220/UTA220k - Manual (Page 73)

UTA220/UTA220k
10-1
BONDING
Chapter 10
BONDING
BONDING is a new protocol standard from the Bandwidth ON
Demand INteroperability Group for combining the bandwidth
of several 56 kbps or 64 kbps channels. BONDING can ‘bond’
from 2 to 31 channels at once. The high speed data, which must
be a multiple of 56 kbps or 64 kbps, is split after arrival at the
DTE interface into the various channels. On the opposite end
the data is recombined into the original data stream and sent to
the DTE interface.
BONDING ON THE UTA220
Because the UTA220 supports one ISDN basic rate interface
(2B+D), two simultaneous calls can be made, allowing an
effective bandwidth of 112 kbps or 128 kbps. The BONDING
call can be made from port 1 or port 2. Table 10-1 lists
BONDING call options.
Table 10-1: BONDING Options
Option Select
CONFIGURATION /
PORT /
PROTOCOL Bond
CONFIGURATION /
PORT /
BONDING OPTIONS /
RATE MULTIPLR Set to 2 in order to request a 112 kbps or 128 kbps call.
Set to 1 in order to request a 56 kbps or 64 kbps call.
Note: To run 56 kbps or 64 kbps, it is simpler to use
clear channel transfer (select PROTOCOL: NONE). If
you request a rate multiplier of one, it will negotiate
parameters according to the BONDING specification
at the start of the call and then switch to a 56 kbps or
64 kbps clear channel call.
CONFIGURATION /
PORT /
BONDING OPTIONS /
SEC CALL PORT This option is needed only for AT&T 5E5/5E6 lines. If
configured for multiple call references, set port 1 to 1
and port 2 to 2. This will cause the second call to use
the same directory number as the first. If the line is not
configured for multiple call references and the BOND-
ING call is being placed on port 1, set both port 1 and
port 2 to 2 (this is the default). If placing the BONDING
call on port 2, set both port 1 and port 2 to 1. This will
cause both directory numbers to be used for the two
channel BONDING call.