Datasheet

13-34
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 13 Management Network Connectivity
13.7.3 OSI Connectionless Network Service
Figure 13-20 shows the ISO-DCC NSAP address with the default values delivered with the
ONS 15454 SDH. The System ID is automatically populated with the node MAC address.
Figure 13-20 ISO-DCC NSAP Address
System System identifier The ONS 15454 SDH system identifier is set to its IEEE 802.3 MAC
address. Each ONS 15454 SDH supports three OSI virtual routers.
Each router NSAP system identifier is the ONS 15454 SDH IEEE
802.3 MAC address + n, where n = 0 to 2. For the primary virtual
router, n = 0.
SEL Selector 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 15454 SDH include:
• 00—Network Entity Title (NET). Used to exchange PDUs in the
ES-IS and IS-IS routing exchange protocols. (See the
“13.7.4.1 End System-to-Intermediate System Protocol” section
on page 13-36, and “13.7.4.2 Intermediate
System-to-Intermediate System” section on page 13-36.)
• 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.
Table 13-11 NSAP Fields (continued)
Field Definition Description
39.840F.80.000000.0000.0000.0000.xxxxxxxxxxxx.00
131598
AFI IDI Reserved Area System IDRDORG
Authority
and
Format
Identifier
SEL
NSAP
Selector
DFI
DSP
Format
Identifier
Routing
Domain
Initial
Domain
Identifier