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Feature

Classic Interface

Modules

Supervisor Engine

Supported

Optional DFC

Not supported

Upgrade Support

Fabric Connections

Connection to 32-Gbps

shared bus

(all supervisors)

Chassis or Slot Support

Any slot in any chassis

Requirements

Cisco Catalyst 6500 Series Cisco Express Forwarding 720 10-, 100-, And 1000-

MBPS Ethernet-over-Copper Modules

Designed for high-performance enterprise and service provider distribution, core layers, data-

center, and Web-hosting applications where voice capability is not required, Cisco Express

Forwarding 720 twisted-pair interface modules provide line-rate 10/100/1000 Ethernet forwarding

with the following operational advantages (refer to Table 3):

Forwarding architecture: These modules use the central Cisco Express Forwarding

●

engine located on the supervisor engine; optional field-upgradable Distributed Cisco

Express Forwarding daughter cards are available.

Forwarding performance: These modules forward packets up to 30 Mpps per system;

●

they forward packets up to sustained 48 Mpps per slot for slots equipped with distributed

forwarding cards (DFC or DFC3).

Fabric connection: These modules connect to the switch-fabric channels using dual

●

20 Gbps switch-fabric channels (40 Gbps total).

Supervisor engine: These modules work with Supervisor Engine 720.

●

Distributed forwarding upgrade option: These modules help enable full locally

●

distributed forwarding; they use an optional (part number WS-F6700-DFC3) upgrade to

operate with the Supervisor Engine 720, and they provide optimal interface module

performance.

Slot and chassis requirements: These modules can occupy any slot in the Cisco Catalyst

●

6506, Catalyst 6509, Catalyst 6509-NEB, or Catalyst 6509-NEB-A; they require slots 9

through 13 when used in the Cisco Catalyst 6513. Cisco Catalyst 6503 support is under

consideration for the future (refer to release notes for details).

Maximum port density per chassis: These modules support up to 384 ports per Cisco

●

Catalyst 6509, up to 240 Cisco Express Forwarding-based ports, and an additional 336

classic or Cisco Express Forwarding 256-based ports per Cisco Catalyst 6513.

Cisco Express

Forwarding 256 Interface

Modules

● Supervisor Engine 1A

● Supervisor Engine 2

● Supervisor Engine 720

● Use WS-F6K-DFC)

with Supervisor Engine

2 and switch fabric

module 2 (SFM2)

● Use WS-F6K-DFC3)

with Supervisor Engine

720

Connections through

single 8-Gbps channel to

switch fabric (Supervisor

Engine 720 or Supervisor

Engine 2 with SFM) and

32-Gbps shared bus

Any slot in any chassis

Solution Overview

Cisco Express

Forwarding 720 Interface

Modules

Supervisor Engine 720

Use WS-F6700-DFC3)

with Supervisor Engine

720

Dual 20-Gbps (40 Gbps

total) channel connection

to switch fabric on

Supervisor Engine 720

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

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