23-12
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.10, Part Number 78-11603-01 Rev. D0, July 2001
Chapter 23 Configuring BXM Virtual Switch Interface
Overview: How VSI Works
Figure 23-1 BXM Virtual Interfaces and Qbins
VSI Master and Slaves
A controller application uses a VSI master to control one or more VSI slaves. For the BPX, the
controller application and master VSI reside in an external 7200or 7500 series router and the VSI slaves
are resident in BXM cards on the BPX node (see Figure 23-2).
The controller sets up these types of connections:
• Control virtual connections (VCs)
–
master to slave
–
slave to slave
• User Connection
–
User connection (that is, cross-connect)
1
16
qbins
Port 1
Port 2
Port 3
Port 4
17 719
Trunk 4.2
BXM
Slot 4
Virtual trunk 4.1.1
Virtual trunk 4.1.2
Virtual trunk 4.1.3
Port 5
Port 6
Port 7
Port 8
1
16
qbins
1
16
qbins
1
16
qbins
1
16
qbins
VI_1
VI_2
VI_3
VI_4
VI_31