Feature

WS-X6704-10GE

WS-X6708-10G-3C

WS-X6708-10G-3CXL

Ports

4

8

Optics

XENPAK

X2

Switch fabric connection

40 Gbps

(80 Gbps full duplex)

40 Gbps

(80 Gbps full duplex)

Forwarding engine

Default: centralized forwarding (CFC)

Optional: distributed forwarding with DFC3A, DFC3B, or DFC3BXL

WS-X6708-10G-3C: equipped with DFC3C for distributed forwarding, supporting 256K routes

WS-X6708-10G-3CXL: equipped with DFC3CXL for distributed forwarding, supporting 1M routes

Queues

RX: 8q8t

TX: 1p7q8t

RX: 8q4t

TX: 1p7q4t

Queuing mechanisms

Class of service (CoS)-based queue mapping

CoS-based queue mapping

Differentiated services code point (DSCP)-based queue mapping

Scheduler

Deficit Weighted Round Robin (DWRR)

DWRR and Shaped Round Robin (SRR)

Port buffers

16 MB per port

200 MB per port

Jumbo frame support for bridged and routed packets

Up to 9216 bytes

Up to 9216 bytes

Maximum port density

32 ports (9-slot chassis)

64 ports (9-slot chassis)

Supervisor engines supported

Supervisor Engine 720

Supervisor Engine 720

Chassis supported

Any Catalyst 6500 E-Series chassis, C6509-NEB-A chassis, non-E-Series chassis with Fan Tray 2, or Cisco 7600 chassis (NEBS compliant: operating temperature up to 55°C)

Not supported in Catalyst 6503 non-E Series chassis

Any Catalyst 6500 E-Series chassis, including 6503-E, 6504-E, 6506-E, 6509-E, and C6509-NEB-A chassis, or the Cisco 7604 and 7609 chassis (NEBS compliant: operating temperature up to 55°C)

Or

Non-E-Series chassis with Fan Tray 2, including 6506, 6509, 6513, or the Cisco 7606 and 7613 chassis (non-NEBS compliant: operating temperature up to 40°C)

Not supported in Catalyst 6503 non-E Series chassis

Slot requirements

Can occupy any slot in any Cisco Catalyst 6503-E, 6504-E, 6506, 6506-E, 6509, 6509-E, 6509-NEB-A, Cisco 7604, 7607, 7609 chassis; can only occupy slots 9 through 13 in a Cisco Catalyst 6513 or Cisco 7613 chassis

Can occupy any slot in any Cisco Catalyst 6503-E, 6504-E, 6506, 6506-E, 6509, 6509-E, 6509-NEB-A, Cisco 7604, 7606, 7609 chassis; can only occupy slots 9 through 13 in a Cisco Catalyst 6513 or Cisco 7613 chassis

Onboard memory

256 MB default, upgradable to 512 MB or 1 GB

1 GB default