Feature |
WS-X6704-10GE |
WS-X6708-10G-3C
WS-X6708-10G-3CXL |
WS-X6716-10G-3C
WS-X6716-10G-3CXL |
Ports |
4 |
8 |
16 |
Optics |
XENPAK |
X2 |
X2 |
Switch Fabric Connection |
40 Gbps (80 Gbps full duplex) |
40 Gbps (80 Gbps full duplex) |
40 Gbps (80 Gbps full duplex) |
Oversubscription |
1:1 |
2:1 |
4:1 |
Forwarding Engine |
• Default: centralized forwarding (CFC)
• Optional: distributed forwarding with DFC3A, DFC3B, DFC3BXL, DFC3C, or DFC3CXL |
• 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 |
• WS-X6716-10G-3C: equipped with DFC3C for distributed forwarding, supporting 256K routes
• WS-X6716-10G-3CXL: equipped with DFC3CXL for distributed forwarding, supporting 1M routes |
Queues |
• RX: 8q8t
• TX: 1p7q8t |
• RX: 8q4t
• TX: 1p7q4t |
Oversubscription mode:
• RX: 1p7q2t per port
• TX: 1p7q4t per port group
Performance mode:
• RX: 8q4t per port
• TX: 1p7q4t per port |
Queuing Mechanisms |
• Class of service (CoS)-based queue mapping |
• CoS-based queue mapping
• Differentiated services code point (DSCP)-based queue mapping |
• CoS-based queue mapping
• DSCP-based queue mapping |
Scheduler |
Deficit Weighted Round Robin (DWRR)
Weighted Random Early Detection (WRED) |
DWRR
WRED
Shaped Round Robin (SRR) at egress |
Oversubscription mode:
• DWRR
• WRED
Performance mode:
• DWRR
• WRED
• SRR at egress |
Port Buffers |
16 MB per port |
200 MB per port |
Oversubscription mode:
90 MB per port group
Performance mode:
200 MB per port |
Hardware-Based Multicast Replication |
Ingress and egress
~20G per replication engine
2 replication engines per module |
Ingress and egress
~50G per replication engine
2 replication engines per module |
Ingress and egress
~50G per replication engine
2 replication engines per module |
Jumbo Frame Support for Bridged and Routed Packets |
Up to 9216 bytes |
Up to 9216 bytes |
Up to 9216 bytes |
Maximum Port Density per Chassis |
34 ports (9-slot chassis) |
66 ports (9-slot chassis) |
130 ports (9-slot chassis) |
Maximum Port Density per VSS |
68 ports |
132 ports |
260 ports |
Can Be Used to Form Virtual Switch Link |
No |
Yes |
Performance mode-Yes (supported in a subsequent software release)
Oversubscription mode-No |
Supervisor Engines Supported |
Virtual Switching Supervisor Engine 720-10G or Supervisor Engine 720 with any PFC (chassis will work in lowest common denominator mode) |
Virtual Switching Supervisor Engine 720-10G or Supervisor Engine 720 with any PFC (chassis will work in lowest common denominator mode) |
Virtual Switching Supervisor Engine 720-10G or Supervisor Engine 720 with any PFC (chassis will work in lowest common denominator mode) |
Chassis Supported |
• Any Cisco Catalyst 6500 E-Series chassis, C6509-NEB-A chassis, non-E-Series chassis with Fan Tray 2, or Cisco 7600 Series chassis, 7600-S Series chassis (NEBS compliant: operating temperature up to 55°C)
• Not supported in Cisco Catalyst 6503 non-E Series chassis |
• Any Cisco Catalyst 6500 E-Series chassis, including 6503-E, 6504-E, 6506-E, 6509-E chassis, 6509-V-E chassis, and C6509-NEB-A chassis with dual fan tray, or the Cisco 7604 chassis and 7609 chassis with dual fan tray, or 7600-S Series chassis (NEBS compliant: operating temperature up to 55°C)
Or
• Non-E-Series chassis with Fan Tray 2, including 6506, 6509, 6513 chassis, and C6509-NEB-A with single fan tray or the Cisco 7606, 7613 chassis and 7609 chassis with single fan tray (non-NEBS compliant: operating temperature up to 40°C)
• Not supported in Cisco Catalyst 6503 non-E Series chassis |
• Any Cisco Catalyst 6500 E-Series chassis, including 6503-E, 6504-E, 6506-E, 6509-E chassis, 6509-V-E chassis and C6509-NEB-A chassis with dual fan tray (NEBS compliant: operating temperature up to 55°C)
Or
• Non-E-Series chassis with Fan Tray 2, including 6506, 6509, 6513 chassis, and C6509-NEB-A with single fan tray (non-NEBS compliant: operating temperature up to 40°C)
• Not supported in Cisco Catalyst 6503 non-E Series chassis and 7600 Series chassis |
Slot Requirements |
Can occupy any slot in any Cisco Catalyst 6503-E, 6504-E, 6506, 6506-E, 6509, 6509-E, 6509-V-E, 6509-NEB-A, Cisco 7604, 7607, 7609, 7600-S Series 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-V-E, 6509-NEB-A, Cisco 7604, 7606, 7609, 7600-S Series 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-V-E, 6509-NEB-A chassis; can only occupy slots 9 through 13 in a Cisco Catalyst 6513 chassis |
Onboard Memory |
256 MB default, upgradable to 512 MB or 1 GB |
1 GB default |
1 GB default |