Vcm Subchannel Virtual Circuit Example - 3Com SuperStack II PathBuilder S330 Reference Manual

VCM Subchannel Virtual Circuit Example

The following example shows how you can set up a three-node VCM network by
creating all required VCM VCC circuits and VCM subchannel circuits. Figure 137
illustrates this setup.
Figure 137 Three-Node VCM Network and Associated Virtual Circuits
S330 A to S330 B
4 subchannel circuits:
DS0: 1-4
DLCI: 16
SCID: 11-14
S330 B to S330 A
4 subchannel circuits:
DS0: 1-4
DLCI: 16
SCID: 11-14
PBX-2 S330 B
For the purposes of this example, assume you want to make the following
connections:
Connect subchannels 1-4 on PBX-1 to subchannels 1-4 on PBX-2
Connect subchannels 5-8 on PBX-1 to subchannels 1-4 on PBX-3.
You need to build the following VCM VCC and subchannel circuits:
At PathBuilder S330 A (S330 A):
Add a virtual circuit (VC 1) between S330 A and S330 B.
Add a virtual circuit (VC 2) between S330 A and S330 C.
Add four subchannel circuits to VC 1, setting these VCM circuit parameters:
DS0: 1-4
DLCI:16
SCID: 11-14
Add four subchannel circuits to VC 2, setting these VCM circuit parameters:
DS0: 5-8
DLCI:17
SCID: 11-14
PBX-1
S330 A
S330 A to S330 C
4 subchannel circuits:
DS0: 5-8
DLCI: 17
SCID: 11-14
VC1 ATM VC2
Network
Configuring Virtual Circuits
S330 C to S330 A
4 subchannel circuits:
DS0: 1-4
DLCI: 17
SCID: 11-14
S330 C PBX-3
145