Nortel 8600 Installation Manual page 73

You can install the 8692 SF/CPU module in slots 5 or 6 of the 8006, 8010,
or 8010co chassis. The 8692 SF/CPU module is not supported in the 8003
chassis with Ethernet Routing Switch 8600 Release 3.7 or earlier.
If you install an 8692 SF/CPU, the other CPU must also be an 8692
SF/CPU.
The 8692 SF/CPU module uses a CPU similar to the PowerPC CPU of
the 8691 SF/CPU. The 8692 SF/CPU includes 256 MB of synchronous
dynamic random access memory (SDRAM) for forwarding tables, and
56 MB of on-board Flash memory for configuration, image and log file
storage.
The 8692 SF/CPU supports an optional Enterprise Enhanced CPU
Daughter Card. The Enterprise Enhanced CPU Daughter Card is a
mezzanine daughter card consisting of dual 1 GHz Power PC processors.
Install the daughter card on an 8692 SF/CPU module to offload
processor-intensive tasks from the 333 MHz processor located on the
8692 SF/CPU motherboard. You require the Enterprise Enhanced CPU
Daughter Card to configure sub-100 millisecond failover and support of
IPv6 routing interfaces. For installation instructions, see
Enterprise enhanced CPU daughter card" (page
The Flash memory consists of two volumes: Volume/0 has a capacity of
16 MB and Volume/1 has a capacity of 64 MB. You can use either volume
to store multiple file types, either Volume/0 or Volume/1. By default, the
system can only use 16 MB on Volume/0. If you want to use 64 MB on
Volume/1, see Ethernet Routing Switch 8600 Upgrades — Software
Release 5.0, NN46205-400.
You can install an 8692 SF/CPU module in both slots 5 and 6 of the 8006,
8010, or 8010co chassis to enable redundant operation. The redundant
module in slot 6 can then assume the processing duties of a failing primary
module in slot 5.
When the 8692 SF/CPU module in slot 6 completes initialization, it
recalculates the topology (Layer 2 including STG, Layer 3 including routing
topology using RIP/OSPF or BGP) information for the switch unless
you enable High Availability mode. In this case, all supported Layer 3
information synchronizes to the redundant SF/CPU, which results in no
interruption of network services.
For more information about High Availability mode, see Nortel Ethernet
Routing Switch Administration, NN46205-605.
Copyright © 2008 Nortel Networks
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Nortel Ethernet Routing Switch 8600
Installation — Modules
NN46205-304 02.02 Standard
16 June 2008
SF/CPU modules 73
"Installing the
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