
Interface module descriptions
45
ATTENTION
When you disable Auto-Negotiation on a port, the port defaults to a particular
speed (even with no link connection). The 10/100 LED indicates this speed.
The 8648TXE module supports up to 32 000 table entries in its forwarding
engine.
The 8648TXM module is an M module and supports up to 128 000 table
entries in its forwarding engine, which supports large layer 2 and layer 3
configurations, including Internet routing tables.
The 8648TXE module does not support R or M mode. The 8648TXM
module supports R and M mode.
8672ATME and 8672ATMM modules
The 8672ATME and 8672ATMM modules provide two bays for
Asynchronous Transfer Mode (ATM) media dependent adapters (MDA).
These MDAs provide interface flexibility and ATM network transmission
that supports RFC 1483 routed and bridged permanent virtual connections
(PVC). The 8672ATME and 8672ATMM modules support Synchronous
Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) frame
structures for data. The following figure shows the ATM module.
Figure 18
8672ATME or 8672ATMM module with an OC-12c or STM-4 MDA
These modules require at least one of the following MDAs:
•
1-port OC-12c/STM-4: single mode fiber (SMF) or multimode fiber
(MMF) using the SONET or SDH media
•
4-port OC-3c/STM-1: SMF or MMF using SONET or SDH media
•
2-port DS-3
For more information about MDAs for the 8672ATME and 8672ATMM
modules, see Nortel Ethernet Routing Switch 8600 Installation — Media
Dependent Adapters for the 8672ATME and 8672ATMM Modules,
NN46205-316.
Nortel Ethernet Routing Switch 8600
Installation — Modules
NN46205-304
02.02
Standard
16 June 2008
Copyright © 2008 Nortel Networks
.
Summary of Contents for Passport 8600 Series
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