54Metro Ethernet Routing Switch 8600 modules

The 8681XLR module supports up to 128 000 table entries in its forwarding engine, allowing for large Layer 2 and Layer 3 configurations, including Internet routing tables. For information about table entry characteristics, see Network Design Guidelines (313197-E).

The Metro Ethernet Routing Switch 8600 system has three hardware operating modes:

Default mode (32 000 table entries) supports up to 32 000 hardware records. This mode supports all modules.

M mode (128 000 table entries) supports up to 128 000 hardware records. This mode supports M modules only.

R mode supports up to:

256 000 IP routes

64 000 MAC entries

32 000 ARP entries

This mode supports R modules only.

The 8681XLR module supports R and M mode. For specific R and M mode configuration requirements, see "R mode configuration requirements" (page

24)and "M mode configuration requirements" (page 23).

8681XLW module

The 8681XLW module ("8681XLW module" (page 54)) provides a single 10GBaseLW 1310nm 10 Gigabit Ethernet serial WAN port. The 10GBaseLW port (9.95 Gb/s WAN PHY) operates in full-duplex mode and provides a transmission range of up to 10 km using 9/125 m single-mode fiber cable.

Note that the Metro Ethernet Routing Switch 8600 does not support the 8681XLW module.

8681XLW module

Nortel Metro Ethernet Routing Switch 8600

Installation — Modules

NN46220-306 02.02 Standard

4.27 July 2008

Copyright © 2005-2007, Nortel Networks

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Nortel Networks 8005AC, 8005DC, 8003AC, 8004AC, 8004DC manual 8681XLW module