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Local Management 3-15
PVC Vport (Modifiable)
Automatically displays the next available PVC Vport (Virtual Port) for configuration. This field
displays the first unconfigured Virtual Port on the device as the default. The first unconfigured
Virtual Port is always displayed as “NEW VPORT:n”, where n is the next available Virtual Port.
There is only one Virtual Port accessible at any one time. Once this Virtual Port is configured, the
next unconfigured Virtual Port is displayed. Using the SPACE bar or BACKSPACE keys will show
currently configured Virtual Ports.
Number of Virtual Queues (Modifiable)
Up to 8 virtual queues per Virtual Port (virtual queue 0 - 7) can be listed. The default number of
virtual queues per Virtual Port is 1. The number of queues may be changed by using the SPACE
bar, BACKSPACE key, or typing the number of queues desired. If a value entered is larger than the
number of queues supported on the platform, then a message stating the total number of queues
supported is displayed across the top of the screen, and the previously displayed queue count is
re-displayed. As the number of virtual queues is increased or decreased, it will cause the display in
the table below to change accordingly. The field is one based for the users’ ease of reference, but
the number of queues displayed in the table are zero based. For example, if the user is on a new
Virtual Port and enters 3 into the number of virtual queue field, virtual queues 0-2 will appear in
the table.
AAL Type (Read-Only)
Displays the ATM Adaptation Layer (AAL) being used by the PVC. The VHSIM2-A6DP only
supports AAL Type 5 (AAL 5).
Encapsulation Type (Toggle)
Displays the type of data encapsulation that the VHSIM2-A6DP can use to perform LAN to ATM
translation. This field toggles between the following options:
• VC Mux 802.3 Bdg - VC Based Multiplexing for Bridged Protocols as defined by the IETF
RFC 1483.
• LLC Encapsulated - Logical Link Control for Bridged Protocols as defined by the IETF
RFC 1483.
Encapsulation is set per Virtual Port on this screen. All PVCs on a particular Virtual Port must
have the same type of encapsulation.
Virtual Queue (Read-Only)
Displays the virtual queues for logical ports. It is zero based like the Ethernet 802.1p
Configuration screens. For example, if 8 is selected in the number of virtual queues fields, then
virtual queues 0 - 7 will be displayed. The default value is 1, to display 1 virtual queue.