Cisco Systems Cisco MGX 8850 PNNI Addressing

5-2
Cisco MGX 8850 Routing Switch Command Reference
Release 2.0, Part Number 78-10467-04 Rev C0, October 2001
Chapter5 PNNI Commands
PNNI Addressing
PNNI Addressing
The PNNI addresses and identifiers contain fields that are common to each other and should match each
other. If you change a field in one item, Cisco Systems advises you to change th e corresponding field in
the other item. For example, if you change the ATM address, you should change c orresponding fields in
the PNNI summary address and node id entifier. Note that the peer group identifier does not share in this
recommendation.
The name and graphic representation of each addr es s an d i dent ifie r as wel l as th e co m mo n i nf o rm ati on
appears in Figure 5-1. The central and lower parts show the breadth of eac h item. Applicable command
descriptions point out where you should modify common fields. The following fields also go into the
construction of the ATM addresses and P N NI- r el ate d identifiers:
•The Initial Domain Identifier ( IDI ) i d en ti fies th e d o m ai n.
•The Initial Domain Part (IDP ) id en tifi es t he co u nt ry.
•The Authority and Format Identifie r (A F I) id en ti fies t h e ad d re s s f orm a t a nd w h o pr ovid ed it .
•The Data Country Code (D C C) ide ntifies the country.
Figure5-1 Cisco Factory-shipped Node-Addressing Defaults Mapping into Both NSAP and DCC
Address Formats
47
1
11
# of
Bytes 21
Default PNNI
peer group identifier
136 6
0056 160 91 81 00 00 00 XX XX XX XX XX XX XX XX XX XX XX XX 00
53383
Cisco
ICD MAC address
DCC ESI SEL
AFI
39
MAC address
ATM
address
length
PNNI
hierarchy
level
Default PNNI
summary address
Default ATM address
Default PNNI
node identifier
High order DSP
(10 bytes)
20 byte ATM address
IDI
Host address
(7 bytes)
DSP: Domain Specific PartDSP: Domain Specific Part
IDP
(3 bytes)
ATM
address
format
ATM
address
format