Uni Management Entity (Ume); Basic Ilmi Functions; Status Information - 3Com CoreBuilder 9000 User Manual

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HAPTER ETWORK
UNI Management
Entity (UME)

Basic ILMI Functions

Status Information

I M
NTERFACE ANAGEMENT
For each ATM device that participates in a UNI, a UNI Management Entity
(UME) supports the ILMI functions for that UNI. When two ATM devices
are connected across a (point-to-point) UNI, two UMEs are associated
with that UNI, one for each ATM device. They are called adjacent UMEs.
The ILMI communication takes place between adjacent UMEs. A UME can
access the MIB of an adjacent UME.
This section discusses the following ILMI services provided by IME:


Status Information


UNI Address Registration


Access to Service Registry MIB


ILMI Connectivity Polling
The IME extracts the following status information from the ATM interface
MIB for display:


State of the physical link that connects to adjacent IMEs


ATM layer configuration information, including the size of VPI and VCI
address fields in the ATM cell header, the number of configured VPCs
and VCCs, and the maximum number of VPCs and VCCs that are
allowed


Parameters that are used for autodiscovery. For example, device type
and NNI signaling version.