Cisco Systems Cisco MGX 8850 - page 271

4-3
Cisco MGX 8850 Routing Switch Command Reference
Release 2.0, Part Number 78-10467-04 Rev C0, October 2001
Chapter4 ILMI Commands Identifying Physical and Logical Elements
•Subport corresponds to the resource partition on the AXSM. For a UNI or NNI, this resource
partition is the same number as the logical port number (ifNum) on the AXSM. For a virtual
network-to-network interface (VNNI), the number does not directly correspond to the
For each physical port number, PNNI als o g en erat es a logical port number as an e ncr y pted f or m of t he
physical port number. The lo gica l po rt numb er a pp ears as an u nfor mat ted nu meri cal s tri ng. Fo r e xamp le,
a PNNI physical port ID may have the form 1:1.2:2, so the PNNI logical port number would be
16848898. Where needed, the descrip tions in the PNNI command chapter define th e need for this logical
port number. (This section does not define a PNNI logical port number, nor does it describe the
correspondence between an AXS M p or t an d a PN N I lo g ica l p o rt n umb er.) For th e co rr esp o nd en ce
between a PNNI physical port and the port identifier on an AXSM, see Table 4 -1.
As Table 4 -1 shows, a port to PNNI is a line on the AXSM , an d a subp or t to PNN I is a log ica l in ter fa ce
(or logical port) on an AXSM. An example of a PNNI physical port identifier is 1:2.1:1. This portid
corresponds to an AXSM, wit h th e f o ll owing p ar tic ulars:
•Slot 1
•Bay 2
•Line 1
•Logical interface 1 (or logical port 1)
Table4-1 Mapping PNNI Port ID to AXSM Elements
PNNI port AXSM
Shelf N/A
Slot Slot
Subslot Bay (for upper or lower back card)
Port Line
Subport Logical interface (or port)