Chapter 4: Avaya Ethernet Routing Switch 8800/8600 Module Fundamentals; R Modules - Avaya 8800 Installation Manual

Chapter 4: Avaya Ethernet Routing Switch
This chapter provides fundamental information about the Ethernet Routing Switch 8800/8600 interface
modules. The Ethernet Routing Switch 8800/8600 modules provide a full complement of core routing and
switching capabilities.
The Ethernet Routing Switch 8800/8600 supports Power Management, which allocates priority among
installed modules. For more information about Power Management, see Avaya Ethernet Routing Switch
8800/8600 Administration, NN46205-600.
For the minimum Ethernet Routing Switch 8800/8600 software versions required to support the hardware
described in this document, see Avaya Ethernet Routing Switch 8800/8600 Administration,
NN46205-600.

R modules

Each Ethernet Routing Switch 8800/8600 R module (release 4.x and later) consists of a
Distributed Processing Module (DPM) and a Port Interface Module (PIM). The PIM consists of
various Media Access Controls (MAC) and Physical Layer Controls (PHY), and the physical
interfaces for direct network connections. A single PIM interconnects with a single DPM to form
a Ethernet Routing Switch 8800/8600 module.
Modules with DPMs are R series modules.
R series modules are not compatible with the 8001AC and 8002DC power supplies or the
8691SF/ CPU modules.
Each DPM in an R series module contains either two or three lanes depending on the module.
Both the 8630GBR and the 8683XLR modules consist of three lanes. The 8648GTR module
consists of two lanes. Each lane is also known as a Flexible Forwarding Engine (FFE). The
FFE lane is the basis for the Ethernet Routing Switch 8800/8600 R modules. The FFE lane
consists of the following:
• Two Flexible Route Switch Processors—ingress Route Switch Processor 2 (RSP2) and
egress RSP2
• One egress packet handling ASIC- F
• One ingress packet handling ASIC- F
The following figure shows the Ethernet Routing Switch 8800/8600 R module packet flow on
ingress and egress.
Installation — Modules
8800/8600 module fundamentals
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