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Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
78-19417-01
Chapter 8 Management Network Connectivity
TCP/IP and OSI Networking
Figure 8-15 shows the default ISO-DCC NSAP address delivered with the ONS 15310-MA SDH. The
System ID is automatically populated with the node’s MAC address.
Figure 8-15 ISO-DCC NSAP Address
The ONS 15310-MA SDH main NSAP address is shown on the node view Provisioning > OSI > Main
Setup subtab. This address is also the Router 1 primary manual area address, which is viewed and edited
on the Provisioning > OSI > Routers subtab. See the “8.6.6 OSI Virtual Routers” section on page 8-32
for information about the OSI router and manual area addresses in CTC.
System System identifier The ONS 15310-MA SDH system identifier is set to its IEEE 802.3
MAC address.
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 15310-MA SDH include:
• 00—Network Entity Title (NET). Used to exchange PDUs in the
ES-IS and IS-IS routing exchange protocols. (See the
“8.6.4.1 End System-to-Intermediate System Protocol” section
on page 8-28, and the “8.6.4.2 Intermediate
System-to-Intermediate System Protocol” section on page 8-28.)
• 1D—Selector for Transport Class 4 (and for FTAM and TL1
applications
• AF—Selector for the TARP protocol
• 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 8-8 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