Sel

Chapter 9 Management Network Connectivity

9.7.3 OSI Connectionless Network Service

Table 9-9	NSAP Fields (continued)

Field	Definition	Description

System	System identifier	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.

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 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 9-32.)
		• 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.

Figure 9-20shows the ISO-DCC NSAP address with the default values delivered with the ONS 15600. The System ID is automatically populated with the node MAC address.

Figure 9-20 ISO-DCC NSAP Address

Initial

Domain

Identifier

Authority

and

DSP

Format

Routing

NSAP

Identifier

Domain

Selector

AFI

IDI

DFI

ORG

Reserved

Area

System ID

SEL

39.840F.80.000000.0000.0000.0000.xxxxxxxxxxxx.00

131598

Cisco ONS 15600 Reference Manual, R7.2

9-30

ONS 15600 specifications

Cisco Systems ONS 15600 is a highly versatile optical networking platform designed to meet the demands of modern telecommunications and data services. This multiservice edge platform supports various transmission mediums and offers a wide array of features that enable efficient data transport. Ideal for service providers and large enterprises, the ONS 15600 is engineered to provide scalable and reliable optical transport solutions.

One of the notable features of the ONS 15600 is its capability to support multiple protocols, including SONET/SDH, Ethernet, OTN, and legacy TDM services. This flexibility allows users to tailor their networks according to specific service requirements while ensuring interoperability with existing infrastructure. The platform is designed to facilitate seamless service migration, accommodating both legacy and next-generation services.

The modular architecture of the ONS 15600 enhances its scalability. It allows for easy expansion by incorporating additional line cards or interface modules without requiring significant downtime. This modularity ensures that service providers can evolve their networks over time, responding to increasing bandwidth demands and new service offerings with ease.

Incorporating advanced technologies, the ONS 15600 employs Dense Wavelength Division Multiplexing (DWDM), significantly increasing the capacity of fiber networks by allowing multiple signals to be transmitted simultaneously over a single optical fiber. This capability helps to optimize fiber utilization and reduce operational costs. In addition, the platform supports Optical Transport Network (OTN) for improved error detection and correction, contributing to higher reliability and performance.

Another key characteristic of the ONS 15600 is its robust management capabilities. The platform can be managed through Cisco's Optical Networking Manager (ONM), providing a centralized interface for network configuration, monitoring, and troubleshooting. This enhances operational efficiency and minimizes downtime, allowing service providers to focus on delivering quality services to their customers.

The ONS 15600 also prioritizes security, offering various features like encryption and access control to safeguard sensitive data during transmission. With its combination of scalability, flexibility, and security, the Cisco ONS 15600 stands out as a reliable choice for organizations looking to enhance their optical networking capabilities while meeting the evolving demands of the digital landscape. Its commitment to quality and performance makes it a cornerstone of modern optical networks.

Cisco Systems ONS 15600 manual Sel

Models: ONS 15600

Field

Definition

System” section on page 9-32.)

NSELs are not advertised until a tunnel is created.

Figure 9-20shows the ISO-DCC NSAP address with the default values delivered with the ONS 15600. The System ID is automatically populated with the node MAC address.

Figure 9-20 ISO-DCC NSAP Address

39.840F.80.000000.0000.0000.0000.xxxxxxxxxxxx.00

ONS 15600 specifications