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Copyright © 1997 Cisco Systems, Inc.
6-73CSE: Networking Fundamentals — WAN Basics
© 1999, Cisco Systems, Inc.
www.cisco.com
VIPs and Port Adapters
Switch
Processor
PortPort
AdapterAdapter
PortPort
AdapterAdapter
Packet
Memory
PP
CC
II
PP
CC
II
CyCy
BB
uu
ss
Route Switch Processors
VIP VIP VIPIPIP
i
Incremental Packet Processing Engines
• Increased density Lower price per port
• Mixed media Better slot utilization
• Distributed switching High aggregate switching
• Distributed Cisco IOS services Scalable QoS,
encryption, etc.
6-74CSE: Networking Fundamentals — WAN Basics
© 1999, Cisco Systems, Inc.
www.cisco.com
VIP2 Models
Distributed
Switching/ DSW
Services Processor Performance Usage
VIP2: Model 15 No N/A Basic network connectivity
High port density reqmts.
VIP2: Model 40 Yes Moderate Distributed switching
Moderate link utilization
VIP2: Model 50 Yes High Demanding applications with:
- High DSW performance
- Multiple high-speed PAs with
high link utilization
- Large-scale implementation
of Cisco Express Forwarding
- Extensive use of distributed
IP services
Distributed
Switching/ DSW
Services Processor Performance Usage
VIP2: Model 15 No N/A Basic network connectivity
High port density reqmts.
VIP2: Model 40 Yes Moderate Distributed switching
Moderate link utilization
VIP2: Model 50 Yes High Demanding applications with:
- High DSW performance
- Multiple high-speed PAs with
high link utilization
- Large-scale implementation
of Cisco Express Forwarding
- Extensive use of distributed
IP services
150-MHz
MIPS R5000
150-MHz
MIPS R5000
200-MHz
MIPS R5000
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