Virtual Ports; Creating Virtual Ports; Figure 6-1 Terminating Pvps - Cabletron Systems SmartSwitch 6500 User Manual

Virtual Ports and Static Connections
VPI
To VPI = 1
or virtual port
XyZ.1

Figure 6-1 Terminating PVPs

6.3

VIRTUAL PORTS

The SmartSwitch 6500 supports the ability to create virtual ports. Typically, virtual ports are used for terminating
Permanent Virtual Path (PVP) connections. Virtual ports are designated by the following convention:
number of the physical port + a period + virtual port number
For example, ,
7a1.3 3a4.7
Note Zero (0) cannot be used as a a virtual port value. Virtual port zero (0) is reserved,
and represents the physical port. For example, 7a1.0 and 5b2.0 represent the
physical ports 7a1 and 5b2, and are not available for designating virtual ports.
6.3.1

Creating Virtual Ports

Virtual ports are created on physical ports by first allocating a range of Virtual Path Identifiers (VPIs), and then
distributing the VPIs among the virtual ports. The number of VPIs used depends on the number of virtual ports needed
and the range of VPIs controlled by each virtual port.
When creating virtual ports, it's important to remember that the virtual port number represents the Base VPI used by
the virtual port. For example, the virtual port
Creating virtual ports on the SmartSwitch 6500 consists of the following basic process
•
Create a traffic descriptor for the virtual port that meets its bandwidth and service category
requirements.
VPI
PVP
Switch 1
1 5
PVPs Internal
to the switch
, , and so on.
5b2.1
uses Base VPI = 3.
5b1.3
Physical Link
PVP
Switch 2 Switch 3
5 3 3
PVP
T
o VPI = 2
2
or virtual port
XyZ.2
SmartSwitch 6500 User Guide 6-7
Virtual Ports