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8 Cisco Product Catalog, December, 2000
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Configuration Guidelines
This section provides helpful information for planning your Cisco 12000 and chassis configuration. The Cisco 12008
supports eight slots and the Cisco 12012 supports 12 slots. Eitherone or two of the slots are used for gigabit route processors,
depending upon whether redundancy is required. In the Cisco 12012, 11 slots are available for a variety of fully hot-
swappable line cards. Seven such slots are available in the Cisco 12008.
Cisco 12000 Series chassis slots are universal and can be populated with any combination of GRPs and line cards. The
following table shows one possible configuration.
Table 18-16: Slot Guidelines for Cisco 12008, Cisco 12012, and Cisco 12016/12416
Table 18-17: Slot Guidelines for Cisco 12000 Series
At the heart of the Cisco 12000 Series is a multigigabit crossbar switching fabric that provides synchronized gigabit-speed
interconnections for all of the other cards in the system. The switching fabric for the Cisco 12016, 12012 and 12008 consists
of up to four switching cards, supplemented by a fifth card that provides 1:4 or 1:1 redundancy. The switching cards for the
Cisco 12008, 12012, 12410, and 12016/12416 are not interchangeable.
BGP4 Support • Route Reflections
• MED (Multi-Exit Discriminators)
• Communities
• DPA (Destination Preference Attribute)
• Flat/Weighted Route Dampening
• Confederations
• Next Hop-Self
• GP Multipath
• Static Routing (IGP)
Management SNMP, Telnet, MIB II
Slot Number Cisco 12008 Cisco 12012 Cisco 12016/12416
0 GRP GRP GRP
1 Redundant GRP (if required) or line
card
Line card Redundant GRP (if required) or line
card
2 - 3 Line card Line card Line card
4 - 7 Line card Line card Line card
8-11 N/A Redundant GRP for slot 11 or Line
card
Line card
12-15 N/A N/A Line card
Slot Number Cisco 12008
0 GRP
1 - 8 Line card
9 Redundant GRP or Line card
10-15 N/A