Cisco ONS 15600 Reference Manual page 176
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9.7.3 OSI Connectionless Network Service
Table 9-9
Field
System
SEL
Figure 9-20
The System ID is automatically populated with the node MAC address.
Figure 9-20
Authority
and
Format
Identifier
AFI
39.840F.80.000000.0000.0000.0000.xxxxxxxxxxxx.00
Cisco ONS 15600 Reference Manual, R6.0
9-30
NSAP Fields (continued)
Definition
System identifier
Selector
shows the ISO-DCC NSAP address with the default values delivered with the ONS 15600.
ISO-DCC NSAP Address
Initial
Domain
Identifier
DSP
Format
Identifier
IDI
DFI
ORG
Reserved
Description
The ONS 15600 system identifier is set to its IEEE 802.3 MAC
address. Each ONS 15600 supports twelve OSI virtual routers. Each
router NSAP system identifier is the ONS 15600 IEEE 802.3 MAC
address + n, where n = 0 to 2. For the primary virtual router, n = 0.
The selector field directs the protocol data units (PDUs) to the correct
destination using the CLNP network layer service. Selector values
supported by the ONS 15600 include:
00—Network Entity Title (NET). Used to exchange PDUs in the
•
ES-IS and IS-IS routing exchange protocols. (See the
"9.7.4.1 End System-to-Intermediate System Protocol" section
on page
9-32, and
"9.7.4.2 Intermediate System-to-Intermediate
System" section on page
1D—Selector for Transport Class 4 (and for FTAM and TL1
•
applications (Telcordia GR-253-CORE standard)
•
AF—Selector for the TARP protocol (Telcordia GR-253-CORE
standard)
•
2F—Selector for the GRE IP-over-CLNS tunnel (ITU/RFC
standard)
•
CC—Selector for the Cisco IP-over-CLNS tunnels (Cisco
specific)
E0—Selector for the OSI ping application (Cisco specific)
•
NSELs are only advertised when the node is configured as an ES.
They are not advertised when a node is configured as an IS. Tunnel
NSELs are not advertised until a tunnel is created.
Routing
Domain
RD
Area
Chapter 9
Management Network Connectivity
9-32.)
NSAP
Selector
System ID
SEL
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