This soft copy for use by IBM employees only.
6.2.2.1 Compliance to the Standards
The IBM 8285 is compliant to the following standard specifications:
•Physical Interface
As to the physical interface, refer to section 6.1.3, “ATM Ports and Cabling”
on page 95.
•UNI (User-to-Network Interface)
There are three versions of UNI standardized by

The ATM Forum

, V3.0, V3.1,
and V4.0. The IBM 8285 supports the following UNI versions:
−V3.0
−V3.1
In addition, the 8285 switch supports the dynamic interconnection between
UNI V3.0 and V3.1 devices as well. Both SVC and PVC are supported and
they can be defined on the same physical port.
•NNI (Network-to-Network Interface)
There are two protocols of NNI standardized by

The ATM Forum

, IISP
(Interim Inter-switch Signaling Protocol) previously called PNNI Phase 0, and
PNNI (private network-to-network interface) Phase 1. The IBM 8285 supports
the following NNI protocols:
−IISP
The IISP protocol is called NNI in the IBM campus ATM Switch terminology.
•LANE (LAN Emulation)
There are two versions of LANE standardized by The ATM Forum, V1.0 and
V2.0. The IBM 8285 supports the following LANE version and components:
−LANE V1.0 (both IEEE 802.5 and Ethernet/IEEE 802.3 LANE)
- LES (LAN Emulation Server)
- BUS (Broadcast and Unknown Server)
- LEC (LAN Emulation Client) for node management
The LES/BUS function can interwork with an external LECS. To get the LECS
address, all of the standardized mechanisms (via ILMI, using the LECS
well-known address (WKA), and the LECS PVC) are supported.
Note
The order an LEC attempts the mechanisms is also standardized by

The

ATM Forum

and is as follows:
1. Get LECS address via ILMI
2. Use the LECS well-known address
3. Use the LECS PVC
104 ATM Workgroup Solutions: Implementing the 8285 ATM Switch