Datasheet
Table Of Contents
- Cisco Catalyst 6500 Series 10/100 and 10/100/1000 Ethernet Interface Modules- IP Telephony and User-Mobility Support with Cisco Catalyst 6500 Series 10/100 and 10/100/1000 Ethernet Interface Modules
- Cisco Catalyst Prestandard Inline Power and IEEE 802.3AF POE
- Powered Device Discovery
- Auxiliary VLAN
- Cisco IBNS
- Enhanced Operational Control for Enhanced Manageability
- Cisco Catalyst 6500 Series 10/100 and 10/100/1000 Modules
- Cisco Catalyst 6500 Series Cisco Express Forwarding 720 10-, 100-, And 1000-MBPS Ethernet-over-Copper Modules
- Cisco Catalyst 6500 Series Cisco Express Forwarding 256 10/100 and 10/100/1000 Interface Modules
- Cisco Catalyst 6500 Series PoE, Classic 10/100, and 10/100/1000 Interface€Modules
- Cisco Catalyst 6500 Series Data-Only Classic Gigabit Ethernet-over-Copper Interface Module
- Ordering Information
- Ordering Information: DFC Daughter Cards
- Specifications
- Service and Support
- For More Information
 

Solution Overview 
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Note:  PoE is not supported on Cisco Express Forwarding 720 10/100/1000 interface modules. 
Table 3.  Cisco Express Forwarding 720 Copper 10/100/1000 Ethernet Interface Module 
Product Number  Primary 
Application 
Ports, 
Connector, 
Maximum 
Distance, 
and Cable 
Type 
PoE 
Support 
Maximum 
Frame 
Size 
(jumbo 
frame) 
Support 
Queues per 
Port 
(Tx=Transmit, 
Rx=Receive)
2
Buffer 
Size 
per 
Port 
WS-X6748-GE-TX  Data center 
and server 
farm 
48, RJ-45, 
100m, 
Category 5 
cable 
No  Up to 9216 
bytes per 
frame 
Tx-1p3q8t; 
Rx-1q8t 
(when using 
Distributed 
Cisco Express 
Forwarding) 
1.3 MB 
Figure 1.  Cisco Express Forwarding 720 10/100/1000 Interface Module (part number WS-X6748-GE-TX) 
with Distributed Cisco Express Forwarding Daughter Card (part number WS-F6700-DFC3A) 
Cisco Catalyst 6500 Series Cisco Express Forwarding 256 10/100 and 10/100/1000 
Interface Modules 
Designed for premier wiring closets, small campus backbone, and server farm applications, 
Cisco Express Forwarding 256 10/100 and 10/100/1000 Ethernet-over-copper interface modules 
provide line-rate 10/100 Ethernet forwarding and gigabit bandwidth options. (Refer to Table 4). 
The PoE Cisco Express Forwarding 256 10/100/1000 interface modules provide flexible 10-, 100-, 
and 1000-Mbps access to the desktop through standard RJ-45 connectors. These interface 
modules feature PoE field-installable daughter cards for pay-as-you-grow investment protection 
and flexibility. Purposefully designed for the wiring closet with 8:1 oversubscription, these 
10/100/1000 interface modules cannot be equipped with distributed forwarding cards. 
Offered with a choice of RJ-45 and RJ-21 connectors, the data-only Cisco Express Forwarding 256 
10/100 and 16-port 10/100/1000 Ethernet interface modules can be deployed where PoE 
capability is not required, and they can be equipped with distributed forwarding daughter cards for 
higher-performance local packet-forwarding environments. 
The Cisco Catalyst 6500 Series Cisco Express Forwarding 256 10/100 and 10/100/1000 interface 
modules offer the following operational advantages and characteristics: 
● 
Forwarding architecture: These modules use the central Cisco Express Forwarding 
engine located on the supervisor engine. 
● 
Forwarding performance: These modules forward packets up to 30 Mpps per system 
and up to 15 Mpps per slot if upgraded to support distributed forwarding. 
● 
Fabric connection: These modules connect to the switch fabric through one 8-Gbps 
connection and the 32-Gbps shared bus. 
2
 Queues Legend: 1p3q1t = 1 priority queue, 3 round robin queues, 1 threshold 










