Data Sheet
All contents are Copyright © 2007-2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
Page 6 of 13
Table 2.
CEF720 Gigabit Ethernet SFP Interface Modules
Product
Transceiver
Type
Ports/Interface/
Connectors
Port
Density/Chassis
Model
Maximum
Frame Size*
Queues per Port
(Tx = Transmit, Rx
= Receive),**
WS-X6748-SFP
Small Form-
factor
Pluggable
(SFP)
48 port; 1000BASE-SX,
LX/LH, -ZX, -T;
1000BASE-CWDM;
LC connecter
240 ports (410 GbE
max)/6513; 384 ports
(386 GbE max)/6509
Up to 9216
bytes/frame
●
Tx-1p3q8T
●
Rx-1q8T
(2q8T when
using dCEF)
WS-X6724-SFP
Small Form-
factor
Pluggable
(SFP)
24-port; 1000BASE-SX,
LX/LH, -ZX, -T;
1000BASE-CWDM;
LC connecter
●
288 ports/6513
●
192 ports/6509
Up to 9216
bytes/frame
●
Tx-1p3q8T
●
Rx-1q8T
(2q8T when
using dCEF)
* Jumbo Frame Support
** Queues Legend: 1p3q1t = 1 priority queue, 3 round robin queues, 1 threshold. For optimal performance, Cisco
recommends using a distributed forwarding card
Figure 4. The Optional Field-Upgradeable for use with CEF720 Class Interface Modules
Cisco Catalyst 6500 Series DCEF256 Gigabit Ethernet Mixed Media Interface Modules
Designed for distribution and core layers and for data-center and Web-hosting applications, Cisco
Catalyst 6500 series dCEF256 optical interface modules provide line-rate Gigabit Ethernet
forwarding with the following operational advantages:
●
Backplane connection: Uses dual 8-Gbps (16Gbps) full-duplex serial channel connections
to the switch fabric on a Supervisor Engine 720 or a SFM/SFM2 module
●
Slot requirements: Can occupy any slot in any Cisco Catalyst 6500 Series chassis except
the 6513 chassis which requires installation in slots 9 through 13 (the only slots on the
chassis with dual fabric connections)
●
Supervisor engine: Supports Supervisor Engine 2 with a SFM or all versions of Supervisor
Engine 720
●
Distributed forwarding mode and performance: Equipped with the field-upgradeable WS-
F6K-DFC or WS-F6K-DFC3 dCEF forwarding daughter cards; the interface module delivers
optimal performance, up to a sustained 24 Mpps per slot, by using the dCEF engine and
dCEF tables located on the DFC/DFC3 daughter card
●
Optics: Supports hot-pluggable gigabit interface converters (GBICs)
Table 3.
dCEF256 Gigabit Ethernet Optical Interface Modules
Product
Transceiver
Type
Ports/Interface/Connectors
Port
Density/
Chassis
Model
Maximum Frame
Size (Jumbo
Frame) Support
Queues per
Port (Tx =
Transmit, Rx
= Receive)*
WS-X6816-GBIC
GBIC
16 ports; 1000BASE-SX, LX/LH, -
ZX, -T; 1000BASE-CWDM, -
DWDM; SC connecter
90 ports/
6513 128
ports/6509
Up to 9216
bytes/frame
Tx-1p2q2t Rx-
1p1q4t
* Queues Legend: 1p3q1t = 1 priority queue, 3 round robin queues, 1 threshold
