Chapter 4: Feature Description
Ethernet Features
Management Service (MNG)
The management service connects the local management port, the network element host CPU, and
the traffic ports into a single service. The management service is pre-defined in the system, with
Service ID 257. The pre-defined management service has a single service point that connects the
service to the network element host CPU and the management port. To configure in-band
management over multiple network elements, the user must connect the management service to
the network by adding a service point on an interface that provides the required network
connectivity.
Users can modify the attributes of the management service, but cannot delete it. The CPU service
point is read-only and cannot be modified. The local management port is also connected to the
service, but its service point is not visible to users. The management port is enabled by default and
cannot be disabled. The following figure illustrates a management service.
Figure 43 Management Service
SAP
SP
Management Service
Port 1
Port 2
Port 3
SAP
SP
SAP
SP
SAP
SP
SAP
SP
Local Management
Port 4
Port 5
SAP
SP
CPU
Management services can provide building blocks for network services such as E-LAN EVCs (EP-
LAN and EVP-LAN), as well as E-Line EVCs (EPL and EVPL EVCs) in which only two service points
are active.
Service Attributes
PTP 820S services have the following attributes:
•
Service ID – A unique ID that identifies the service. The user must select the Service ID upon
creating the service. The Service ID cannot be edited after the service has been created.
Service ID 257 is reserved for the pre-defined Management service.
•
Service Type – Determines the specific functionality that will be provided for Ethernet traffic
using the service. For example, a Point-to-Point service provides traffic forwarding between
two service points, with no need to learn a service topology based on source and destination
MAC addresses. A Multipoint service enables operators to create an E-LAN service that
includes several service points.
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