Datasheet

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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.
• Supervisor engine—These modules work with Supervisor Engine 1A, Supervisor Engine 2, or Supervisor Engine 720.
• Slot requirements—These modules can occupy any slot in any Cisco Catalyst 6500 Series chassis.
• Maximum port density per chassis (48-port modules)—These modules support up to 576 ports per Cisco Catalyst 6513, and up to 384 ports per
Cisco Catalyst 6509.
• Maximum port density per chassis (16-port modules)—These modules support up to 192 ports per Cisco Catalyst 6513, and up to 128 ports per
Cisco Catalyst 6509.
Exclusive features of the Cisco Express Forwarding 256 10/100 and 16-port Cisco Express Forwarding 256 10/100/1000 Ethernet interface modules
follow:
• Distributed forwarding upgrade—An optional upgrade is available to perform distributed forwarding; it requires a WS-F6K-DFC3 upgrade to
operate with Supervisor Engine 720; a WS-F6K-DFC upgrade to operate with Supervisor Engine 2 Multilayer Switch Feature Card 2 (MSFC2);
and an SFM.
Exclusive characteristics and features of the 48-port Cisco Express Forwarding 256 10/100/1000 Ethernet interface module follow:
• Field-installable and -upgradable PoE daughter cards—Sharing the same Category 5 UTP cabling used for network connections, these daughter
cards help enable centralized power distribution to IP phones, wireless access points, and other powered devices.
• These modules are designed to support field upgrades to the IEEE 802.3af PoE standard with a new daughter card providing maximum investment
protection.
• TDR—TDR tests cabling by sending signals down the cable to identify faults in each twisted pair.
• Distributed forwarding upgrade—This feature is not supported. The WS-X6548-GE-TX, WS-X6548V-GE-TX, and WS-X6548-GE-45AF do not
support distributed forwarding (WS-F6KDFC and WS-F6K-DFC3A).
Table 4 shows application, port, and queue data for the Cisco Express Forwarding 256 10/100 and 10/100/1000 modules.
Table 4. Cisco Express Forwarding 256 10/100 and 10/100/1000 Modules
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)*
Buffer
Size
per Port
WS-X6548-GE-TX Premier wiring
closet
48, RJ-45, 100m,
Category 5 cable
Field upgradable to
Cisco Prestandard
Up to 1518 bytes
per frame
Tx-1p2q2t
(per 8 ports)
1 MB per
8 ports