The Cisco IGX 8400 Series Has What It
Takes-No Matter What Your Business Needs
Whether you need to consolidate multiple networks,
integrate legacy data traffic, accommodate emerging
voice and Internet applications, or improve application
performance, the Cisco IGX 8400 series can meet your needs.
ATM Services
The IGX 8400 series offers standards-compliant ATM
User-to-Network Interface/Network-to-Network Interface
(UNI/NNI) on a variety of physical interface types.
All ATM interfaces support per-VC queuing, rate
scheduling, and up to 16 classes of service, including those
defined by the ATM Forum:
• Constant Bit Rate (CBR)
• Variable Bit Rate (Real-Time) (VBR [RT])
• Variable Bit Rate (Nonreal-Time) (VBR [NRT])
• Available Bit Rate (ABR)
• Unspecified Bit Rate (UBR)
The IGX 8400 series also offers ATM interfaces that can
be customized to meet the performance requirements of
specific applications. All ABR implementations are supported,
including Virtual Source/Virtual Destination (VS/VD),
Explicit Forward Congestion Indication (EFCI) marking,
and Explicit Rate (ER) marking.
Frame Relay Services
Frame Relay services are today’s fastest-growing
network services for business-critical applications. The
IGX 8400 series switch offers standards-compliant Frame
Relay UNI/NNI on a variety of physical interface types.
Cisco’s implementation of Frame Relay goes beyond
standard requirements. Intelligent QoS Management
features enable built-in congestion avoidance mechanisms
to deliver unbeatable performance for Frame Relay traffic.
Enhanced messaging on the UNI enables the IGX 8400
switch to extend ForeSight traffic management to Cisco
routers, delivering high QoS across the entire Frame
Relay network. An Enhanced Local Management Interface
(ELMI) also enables automatic Frame Relay traffic
shaping parameter configuration on Cisco routers, saving
time, reducing the potential for configuration errors,
and eliminating long troubleshooting times.
Tag Switching
Cisco’s Tag Switching technology provides you with a
highly scalable, reliable means of integrating IP traffic with
ATM traffic. Compliant with the emerging IETF standard
for Multiprotocol Label Swapping (MPLS), Tag Switching
delivers end-to-end QoS support for IP and ATM traffic
while increasing scalability.
73.0891 IGXEnterprisePLB 6.0 4/30/98 6:24 PM Page 9
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