Specifications

23-14
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 23 Configuring BXM Virtual Switch Interfaces
Overview: How VSI Works
Partitioning
The VSIs need to partition the resources between competing controllers, Autoroute, Label Switching,
and PNNI for example. You do partitioning by using the cnfrsrc command.
Note Release 9.3 supports up to three partitions.
For Release. 9.1 and Release 9.2, just one controller (of a particular type) is supported. However, you
can have different types of controllers splitting up a partition’s assets. For example, Autoroute and
Label, or Autoroute and PNNI (svcs), and both PNNI and MPLS.
Table 23-2 shows the three resources that must be configured for a partition designated ifci, which
stands for interface controller 1 in this instance.
The controller is supplied with a logical lcn connection number, that is slot, port, and so on., information
that is converted to a logical connection number (lcn).
Some ranges of values available for a partition are listed in Table 23-3:
When a trunk is added, the entire bandwidth is allocated to Autoroute. To change the allocation in order
to provide resources for a vsi, use the cnfrsrc commandontheBPXswitch.Aviewoftheresource
partitioning available is shown in Figure 23-5.
Table 23-2 ifci Parameters (Virtual Switch Interface)
ifci parameters Min Max
lcns min_lcnsi max_lcnsi
bw min_bwi max_bwi
vpi min_vpi max_vpi
Table 23-3 Partition Criteria
Range
trunks 1-4095 VPI range
ports 1-4095 VPI range
virtual trunk only one VPI available per virtual trunk since a virtual trunk is currently
delineated by a specific VP
virtual trunk each virtual trunk can either be Autoroute or vsi, not both