Cisco Module 48p 10/100 ENet RJ45 for Cat 6500 规格指南
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Table 2. Classic, Cisco Express Forwarding 256, and Cisco Express Forwarding 720 10/100 and 10/100/1000 Interface Module
Comparison
Feature
Classic Interface Modules
Cisco Express Forwarding 256
Interface Modules
Cisco Express Forwarding 720
Interface Modules
Performance or
Forwarding Rate (Mpps)
•
32 Gbps; 15 Mpps per
system
•
256 Gbps using Cisco Express
Forwarding; up to 30 Mpps per system
•
Using Distributed Cisco Express
Forwarding upgrade: Up to 15 Mpps
per slot for slots equipped with
distributed forwarding card (DFC)
or DFC3 to support distributed
forwarding
per slot for slots equipped with
distributed forwarding card (DFC)
or DFC3 to support distributed
forwarding
•
720 Gbps using Cisco Express
Forwarding; up to 30 Mpps per system
•
Using Distributed Cisco Express
Forwarding upgrade, up to 48 Mpps
sustained per slot for modules
equipped with DFC3 to support
distributed forwarding
sustained per slot for modules
equipped with DFC3 to support
distributed forwarding
Forwarding-Engine
Architecture
•
Centralized Cisco
Express Forwarding
engine located on
supervisor policy feature
card (PFC) makes
forwarding decision
engine located on
supervisor policy feature
card (PFC) makes
forwarding decision
•
Centralized Cisco Express Forwarding
engine located on supervisor PFC
makes forwarding decision
makes forwarding decision
•
Upgradable to Distributed Cisco
Express Forwarding switching* with
optional WS-F6K-DFC or WS-F6K-
DFC3)
optional WS-F6K-DFC or WS-F6K-
DFC3)
•
Centralized Cisco Express Forwarding
engine located on supervisor PFC
makes forwarding decision
makes forwarding decision
•
Upgradable to Distributed Cisco
Express Forwarding local switching
with optional WS-F6700-DFC3)
with optional WS-F6700-DFC3)
Supervisor Engine
Supported
•
Supervisor Engine 1A
•
Supervisor Engine 2
•
Supervisor Engine 720
•
Supervisor Engine 1A
•
Supervisor Engine 2
•
Supervisor Engine 720
•
Supervisor Engine 720
Optional DFC Upgrade
Support
•
Not supported
•
Use WS-F6K-DFC) with Supervisor
Engine 2 and switch fabric module 2
(SFM2)
(SFM2)
•
Use WS-F6K-DFC3) with Supervisor
Engine 720
•
Use WS-F6700-DFC3) with
Supervisor Engine 720
Fabric Connections
•
Connection to 32-Gbps
shared bus (all
supervisors)
supervisors)
•
Connections through single 8-Gbps
channel to switch fabric (Supervisor
Engine 720 or Supervisor Engine 2
with SFM) and 32-Gbps shared bus
Engine 720 or Supervisor Engine 2
with SFM) and 32-Gbps shared bus
•
Dual 20-Gbps (40 Gbps total) channel
connection to switch fabric on
Supervisor Engine 720
Supervisor Engine 720
Chassis or Slot
Support Requirements
•
Any slot in any chassis
•
Any slot in any chassis
•
Any slot in Cisco Catalyst 6506,
Catalyst 6509, Catalyst 6509-NEB-A,
and slots 9 through 13 on Cisco
Catalyst 6513; Cisco Catalyst 6503 not
supported at current time
and slots 9 through 13 on Cisco
Catalyst 6513; Cisco Catalyst 6503 not
supported at current time
* The WS-X6548-GE-TX, WS-X6548V-GE-TX, and WS-X6548-GE-45AF modules do not support distributed forwarding; a WS-F6K-DFC and WS-F6K-
DFC3A/B/BXL) cannot be installed on these interface modules.