Cisco XENPAK Module 10GBase LR XENPAK-10GB-LR= データシート
製品コード
XENPAK-10GB-LR=
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FEATURES AND BENEFITS
Cisco Catalyst 6500 Series switches provide 10 Gigabit Ethernet wire-speed switched connectivity over single-mode fiber, multimode fiber, and
copper. Cisco offers various switch fabric connection and traffic forwarding options, including CEF720 and dCEF720. CEF720 and dCEF720
interface modules communicate using 40-Gbps connections to the integrated 720-Gbps switch fabric of the Supervisor Engine 720.
Cisco also offers a choice of packet buffer depths for traffic shaping, and quality-of-service (QoS) granularity with a varying number of queues and
drop threshold options. These features are important points when considering which module is appropriate for a given network application.
Cisco Catalyst 6500 Series 10 Gigabit Ethernet interfaces can be deployed in a wide variety of environments based on various features (Table 1).
Table 1.
Comparison of 10 Gigabit Ethernet Interface Modules
Feature
WS-X6704-10GE 4 Port x 10 GE, CEF7201*
WS-X6802-10GE 2 port x 10 GE, dCEF720
Primary Application
High-performance enterprise cores and data
centers, including Metro Ethernet networks,
short haul transmission deployments. Add a
distributed forwarding card (DFC) for high
sustained performance enterprise or service
provider networks.
High sustained performance service provider and
enterprise cores and data centers, including Metro
Ethernet networks and long-haul transmission
deployments
Forwarding Architecture and
Switch Fabric Connection
•
CEF720: Centralized supervisor engine-based
forwarding (CEF) using a 40-Gbps
connection to the Supervisor Engine 720’s
720-Gbps switch fabric
•
Optional full local forwarding (dCEF)
distributed Cisco Express Forwarding engine
using a field-upgradable daughter card on
interface module
dCEF720: Full local forwarding (dCEF)
distributed Cisco Express Forwarding engine
using a DFC daughter card on interface module;
uses 40-Gbps connection to the 720-Gbps switch
fabric of the Supervisor Engine 720
Module Performance
Maximum (mpps)
•
Centralized forwarding performance up to
30 mpps per system
•
Fully nonblocking when using only two ports
(2 and 4, 1 and 3, 1 and 4, or 2 and 3)
•
Up to 98 percent nonblocking with all four
ports active when using dCEF
•
Distributed forwarding 48 mpps per slot for
interface modules upgraded with DFCs;
sustained system performance of up to
400 mpps per system
•
Nonblocking at all packet sizes and chassis
configurations on both ports
•
Distributed forwarding 30 mpps (line rate for
2 x 10 GE) per slot for interface modules
upgraded with DFCs; sustained system
performance of up to 400 mpps per system