Cisco C6800-8P40G-XL Line Card
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Category: Catalyst 6800Subcategory: Catalyst 6800 Kit
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Model: C6800-8P40G-XL
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Description: Catalyst 6800 8 port 40GE with integrated DFC4XL
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Price: 79,640.42 USDLast Update: 2021-11-01
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The Cisco Catalyst 6800 Family Switches introduce an 8-port 40-Gigabit Ethernet module designed to handle high-bandwidth needs in next-generation enterprise networks. Built to serve modern campus aggregation and core network deployments, this line card efficiently aggregates high-density 40-Gigabit Ethernet streams to support demanding network infrastructures.
The module operates across enterprise environments by delivering high-throughput performance with hardware-based processing features. It integrates seamlessly into Cisco Catalyst 6807-XL chassis configurations, running on a shared ASIC architecture designed to ensure predictable network delivery, low latency, and efficient data handling.
Product Overview
The line card is offered in two distinct hardware variants to cater to different operational requirements: the Cisco Catalyst 6800 8-Port 40-Gigabit Ethernet Fiber Module non-XL and the Cisco Catalyst 6800 8-Port 40-Gigabit Ethernet Fiber Module XL. Both hardware models share the same fundamental architecture, supporting identical core feature sets in hardware while delivering line-rate performance and oversubscribed operational options per port group.
Each module equips eight 40-Gigabit Ethernet ports utilizing Quad Small Form-Factor Pluggable (QSFP) transceivers and connects to the backplane with up to 160 Gbps of bandwidth in the Catalyst 6807-XL chassis. The hardware features standard front-facing passive UHF RFID technology for streamlined asset management and tracking. Compatibility extends to Supervisor Engine 2T, Supervisor Engine 2TXL, Supervisor Engine 6T, and Supervisor Engine 6TXL models.
Features and Benefits
- High-Bandwidth Density: Provides 8 ports of 40-Gigabit Ethernet per line card using QSFP transceivers, enabling high-density core and aggregation links.
- Distributed Forwarding Architecture: Equipped with the DFC4-E engine to support up to 256K IPv4/MPLS entries, 128K IPv6 entries, 128K MAC addresses, and 64K IPv4/IPv6 multicast routes.
- Advanced Traffic Visibility: Built-in hardware support for 1M NetFlow entries, including Flexible NetFlow, Sampled NetFlow, and Egress NetFlow monitoring.
- Enhanced System Resiliency: Fully supports Virtual Switching System (VSS) topology across all ports to maximize network availability and redundancy.
- Hardware-Based Security: Integrates MACsec (802.1ae), Access Control Lists (ACLs), Security Group Tagging (SGT), and Security Group Access Control Lists (SGACL).
- Quality of Service & Traffic Control: Features hardware-based multicast replication, traffic shaping, and Hierarchical Quality of Service (HQoS) to ensure predictable application performance.
- Integrated Asset Tracking: Uses built-in passive UHF RFID tags on the front panel to enable automated RFID-based inventory management.
- Future-Ready Network Architecture: Compatible with Location ID Separation Protocol (LISP) and Software-Defined Access (SDA) implementations.
Delivering secure and predictable performance for next-generation campus networks
Product Overview
The Cisco Catalyst 6800 Family Switches offer a 8-port 40-Gigabit Ethernet module to serve a variety of high-bandwidth needs for the next-generation enterprise. Working in conjunction with the Catalyst Supervisor Engine 2T/2TXL (VS‑S2T‑10G & VS-S2T-10GXL) or Catalyst Supervisor Engine 6T/6TXL (C6800-SUP6T & C6800-SUP6T-XL), they can serve different needs on campus deployments. The line card includes two variants: the Catalyst 6800 8-port 40-Gigabit Ethernet Fiber Module non-XL and the Catalyst 6800 8-port 40-Gigabit Ethernet Fiber Module XL.
The modules support hardware-based multicast replication, Quality of Service (QoS), Access Control Lists (ACLs), jumbo frames, and low latency to enable secure and predictable performance for bandwidth-intensive applications. Both share a common ASIC architecture and support the same set of features in hardware. The eight-port 40-Gigabit Ethernet Modules can also operate in performance mode. They include hardware features such as Virtual Switching System (VSS), Location ID Separation Protocol (LISP), Security Group Tagging (SGT) and Access Control (SGACL), MACsec (802.1ae), traffic shaping, and Hierarchical Quality of Service (HQoS), Software-Defined Access (SDA) among others. The line cards also have front‑facing passive UHF RFID technology, providing the latest Auto-ID capabilities for asset management. They support Quad Small Form-Factor Pluggable (QSFP) transceivers. The modules are designed to meet the increasing demand for aggregation of 40-Gigabit Ethernet streams in campus deployments, as well as for 40-Gigabit Ethernet transport in the core.
6800 Series 8-Port 40 Gigabit Ethernet Module
The 6800 Series 8-Port 40 Gigabit Ethernet Module is suitable for deployment in all aggregation and core networks.
● Two models: C6800-8P40G, an 8-port 40 Gigabit Ethernet module with DFC4-E (Figure 1), and C6800 8P40G-XL, an 8-port 40 Gigabit Ethernet module with DFC4-EXL
● Backplane connection: 160-Gbps backplane bandwidth in Catalyst 6807-XL chassis
● Chassis/slot support: Can occupy slots 1–2 and 5–7 in a Cisco Catalyst 6807-XL
● Supervisor engine: Compatible with Supervisor Engine 2T, Supervisor Engine 2TXL, Supervisor Engine 6T, and Supervisor Engine 6TXL
● Distributed forwarding and performance: Comes equipped with dual (2) DFC4-E or DFC4-EXL daughter cards

6800 Series 8-Port 40 Gigabit Ethernet Module
Table 1 summarizes the primary features of the Cisco Catalyst 6800 Series 40 Gigabit Ethernet Modules.
Table 1. 40 Gigabit Ethernet Module Primary Features
| Feature |
8-Port 40 Gigabit Ethernet Module (non-XL) |
8-Port 40 Gigabit Ethernet Module (XL) |
| Switch fabric connection |
160 Gbps in 6807-XL chassis |
160 Gbps in 6807-XL chassis |
| Oversubscription |
In C6807-XL: |
In C6807-XL: |
| 8 ports: Oversubscription mode 2:1 |
8 ports: Oversubscription mode 2:1 |
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| Throughput (per module) |
IPv4: up to 120 Mpps |
IPv4: up to 120 Mpps |
| IPv6: up to 60 Mpps |
IPv6: up to 60 Mpps |
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| Maximum 40G port density per chassis (not including supervisor uplinks) |
40 ports (6807-XL chassis) |
40 ports (6807-XL chassis) |
| Maximum port density per VSS (not including supervisor uplinks) |
80 ports (6807-XL chassis) |
80 ports (6807-XL chassis) |
| Can be used to form VSS virtual switch link |
Yes (on all ports) |
Yes (on all ports) |
| Performance mode |
Yes |
Yes |
| Per port-group |
Per port-group |
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| Forwarding engine features |
● Equipped with DFC4-E for distributed forwarding, supporting:
◦ 256K IPV4 and MPLS forwarding entries, 128K IPV6 entries
◦ 64K IPV4/IPV6 Multicast routes
◦ 64K ACL entries (shared between QoS and security)
◦ 1M NetFlow entries (with 2 forwarding engines)
● Both models support a MAC address table of 128K
● In addition to the increased NetFlow entries, supports Flexible NetFlow, Sampled NetFlow, and Egress NetFlow
● Increased MPLS and VPLS performance of up to:
● 120 Mpps for MPLS forwarding and up to 60 Mpps for VPLS forwarding
● Support for 16K bridge domains, allowing the standard 4K VLANs to be reused across these bridge domains
● IPv4 Internet Group Management Protocol Version 3 (IGMPv3) snooping in hardware
● IPv6 Multicast Listener Discovery version 2 (MLDv2) snooping in hardware
● Protocol Independent Multicast (PIM) source registers in hardware
● IPV4 and IPv6 in IPv6 tunneling, IPV4 and IPv6 in MPLS tunneling (6PE/6VPE)
● IPv6 in IPv4 tunneling (Intra-Site Automatic Tunnel Addressing Protocol [ISATAP], 6to4, GRE)
● QoS support for uniform, short pipe, and pipe mode tunnel; hierarchical QoS
● Fast Link Notification (FLN) for hardware port state detection within 50 ms
● MACsec (802.1ae) link-layer hardware AES 128-bit encryption
● LISP hardware encapsulation
● Virtual Switch Header (VSH) and Virtual Network Tag (VNtag) hardware encapsulation for VSS
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● Equipped with DFC4-EXL for distributed forwarding, supporting
◦ 1M IPV4 and MPLS forwarding entries, 512K IPV6 entries
◦ 64K IPV4/IPV6 Multicast routes
◦ 256K ACL entries (shared between QoS and security)
◦ 2M NetFlow entries (with 2 forwarding engines)
● Both models support a MAC address table of 128K
● In addition to the increased NetFlow entries, supports Flexible NetFlow, Sampled NetFlow, and Egress NetFlow
● Increased MPLS and VPLS performance of up to:
● 120 Mpps for MPLS forwarding and up to 60 Mpps for VPLS forwarding
● Support for 16K bridge domains, allowing the standard 4K VLANs to be reused across these bridge domains
● IPv4 Internet Group Management Protocol Version 3 (IGMPv3) snooping in hardware
● IPv6 Multicast Listener Discovery version 2 (MLDv2) snooping in hardware
● Protocol Independent Multicast (PIM) source registers in hardware
● IPV4 and IPv6 in IPv6 tunneling, IPV4 and IPv6 in MPLS tunneling (6PE/6VPE)
● IPv6 in IPv4 tunneling (Intra-Site Automatic Tunnel Addressing Protocol [ISATAP], 6to4, GRE)
● QoS support for uniform, short pipe, and pipe mode tunnel; hierarchical QoS
● Fast Link Notification (FLN) for hardware port state detection within 50 ms
● MACsec (802.1ae) link-layer hardware AES 128-bit encryption
● LISP hardware encapsulation
● Virtual Switch Header (VSH) and Virtual Network Tag (VNtag) hardware encapsulation for VSS
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| Queues |
Receive:
● 1p7q4t (default)
● 2p6q4t (configurable)
Transmit:
● 1p7q4t (default)
● 2p6q4t (configurable)
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Receive:
● 1p7q4t (default)
● 2p6q4t (configurable)
Transmit:
● 1p7q4t (default)
● 2p6q4t (configurable)
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| Queuing mechanisms |
●
Class of Service (CoS)-based queue mapping
●
Differentiated Services Code Point (DSCP)-based queue mapping
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●
Class of Service (CoS)-based queue mapping
●
Differentiated Services Code Point (DSCP)-based queue mapping
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| Scheduler |
Ingress queuing:
● Deficit Weighted Round Robin (DWRR)
Egress queuing:
● DWRR
◦ WRED
● Shaped Round Robin (SRR)
◦ WRED
● Class-Based Weighted Fair Queuing (CBWFQ)
◦ 2-Level Traffic Shaping (HQoS)
◦ Low-Latency Queuing (LLQ)
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Ingress queuing:
● Deficit Weighted Round Robin (DWRR)
Egress queuing:
● DWRR
◦ WRED
● Shaped Round Robin (SRR)
◦ WRED
● Class-Based Weighted Fair Queuing (CBWFQ)
◦ 2-Level Traffic Shaping (HQoS)
◦ Low-Latency Queuing (LLQ)
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| Port buffers |
Oversubscription mode:
● 1 GB per port (egress)
● 4.8 MB per port (ingress)
Performance mode:
● 2 GB per port (egress)
● 10 MB per port (ingress)
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Oversubscription mode:
● 1 GB per port (egress)
● 4.8 MB per port (ingress)
Performance mode:
● 2 GB per port (egress)
● 10 MB per port (ingress)
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| Hardware multicast replication |
● Ingress and egress replication mode
● Approximately 20 Gbps per replication engine
● 8 replication engines per module
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● Ingress and egress replication mode
● Approximately 20 Gbps per replication engine
● 8 replication engines per module
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| Jumbo frame support |
Up to 9216 bytes |
Up to 9216 bytes |
Line Card Mode of Operation
Cisco Catalyst 6800 8-Port 40-Gigabit Ethernet Fiber Module can operate in Oversubscription Mode (2:1) or in performance mode to provide line-rate operation.
Ports are numbered from Left to right as shown in Figure 2, Odd Number ports on TOP and Even Number Ports on Bottom.

6800 Family 8-Port 40-Gigabit Ethernet Fiber Module Port Groups and Performance Mode
● Oversubscribed mode (Default)
◦ Both the 40G Ports in a Port Group are active
◦ Provides 2:1 Oversubscription
◦ Default Mode of operation
◦ Ingress & Egress buffers allocated per port-group is shared across both ports.
● Performance Mode
◦ One of the port (3,4,7 & 8) in Port-Group are shutdown
◦ Ports 1, 2, 5 & 6 operates in Line Rate
◦ Ingress & egress buffers are double for active port
| Feature |
8-Port 40 Gigabit Ethernet Module (non-XL) |
8-Port 40 Gigabit Ethernet Module (XL) |
| 40 Gigabit Ethernet ports |
8 ports 40GE Numbered left to right:
● Top row has odd numbered ports: FortyGigabitEthernet 1,3,5,7
● Bottom row has even numbered ports: FortyGigabitEthernet 2,4,6,8
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8 ports 40GE Numbered left to right:
● Top row has odd numbered ports: FortyGigabitEthernet 1,3,5,7
● Bottom row has even numbered ports: FortyGigabitEthernet 2,4,6,8
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| Port groups |
4 port groups 2 Port-sets per port group Port-group 1:
●
1, 3
Port-group 2:
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2, 4
Port-group 3:
●
5, 7
Port-group 4:
●
6, 8
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4 port groups 2 Port-sets per port group Port-group 1:
●
1, 3
Port-group 2:
●
2, 4
Port-group 3:
●
5, 7
Port-group 4:
●
6, 8
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Product Specifications
Table 2 lists product specifications of the 6800 Series 40 Gigabit Ethernet modules.
Table 2. Product Specifications
| Product |
Specifications |
| Supervisor engines supported |
Cisco Catalyst 6500 Series Supervisor Engine 2T and 2TXL Cisco Catalyst 6800 Series Supervisor Engine 6T and 6TXL |
| Chassis supported |
● Cisco Catalyst 6807-XL chassis
● Not supported in 6500 non-E Series chassis, 6500-E Series chassis, and 7600 Series chassis
|
| Slot requirements |
● Can occupy slots 1–2 and 5–7 in a Cisco Catalyst 6807-XL chassis
|
| Onboard memory |
2 GB default |
| Minimum Cisco IOS Software release |
15.5(1)SY |
| Standard protocols |
IEEE 802.1d, IEEE 802.1p, IEEE 802.1q, IEEE 802.1s, IEEE 802.1w, IEEE 802.3x, IEEE 802.3ad, IEEE 802.3ba |
| Physical specifications |
● Occupies one slot in 6807-XL chassis
● Dimensions (H x W x D): 1.73 x 15.4 x 16.4 inches (4.39 x 39.11 x 41.65 cm)
● Weight:
◦ 12.52 lb (5.68kg) for C6800-8P40G
◦ 12.79 lb (5.80kg) for C6800-8P40G-XL
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| Environmental conditions |
Operating temperature:
● Agency-certified for operation: 32° to 104°F (0° to 40°C)
● Design and tested for operation: 32° to 130°F (0° to 55°C)
● Storage temperature: -40° to 167°F (-40° to 75°C)
● Relative humidity: 10 to 90 percent, noncondensing
Operating altitude:
● Agency-certified for operation: -500 to 6500 ft (-150 to 2000 m)
● Designed and tested for operation: -500 to 10K ft (-150 to 3000 m)
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| Regulatory compliance |
6800 Series 40 Gigabit Ethernet module, when installed in a system, complies with the following EMC and safety standards: EMC Standards:
● FCC Part 15 (CFR 47) Class A
● ICES-003 Class A
● VCCI Class A
● EN55022 Class A
● EN55024
● CISPR24
● CISPR 22 Class A
● AS/NZS CISPR 22 Class A
● ETS 300 386
● KN 22 Class A
● EN 50082-1
● EN61000-3-2
● EN61000-3-3
● EN61000-6-1
● CNS13438 Class A
● KN6100 -4 Series
Safety Standards:
● UL 60950-1
● CAN/CSA C22.2 No. 60950
● EN 60950-1
● IEC 60950-1
● AS/NZS 60950-1
● IEC 60825 Class 1
● EN 60825 Class 1
● 21CFR 1040
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| ETSI |
● ETS 300 019-2-1, Class 1.1 Storage
● ETS 300 019-2-2, Class 2.1 and 2.2 Transportation
● ETS 300 019-2-3, Class 3.1E Stationary Use
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| Network management |
● ETHERLIKE-MIB (RFC 1643)
● IF-MIB (RFC 1573)
● Bridge MIB (RFC 1493)
● CISCO-STACK-MIB
● CISCO-VTP-MIB
● CISCO-CDP-MIB
● RMON MIB (RFC 1757)
● CISCO-PAGP-MIB
● CISCO-STP-EXTENSIONS-MIB
● CISCO-VLAN-BRIDGE-MIB
● CISCO-VLAN-MEMBERSHIP-MIB
● ENTITY-MIB (RFC 2037)
● HC-RMON
● RFC1213-MIB (MIB-II)
● SMON-MIB
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| Power requirements |
● C6800-8P40G: 587.60 watts
● C6800-8P40G-XL: 587.60 watts
● Go to
https://www.cisco.com/go/powercalculator for easy power consumption calculation
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| Indicators |
● Status: green (operational), red (faulty), and orange (module booting)
● Link: green (port enabled and connected), orange (port disabled), and off (port enabled and not connected)
● Blue beacon: Used to identify a specific module in a fully populated system within a multisystem environment
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System Requirements
Pluggable Optics for 40 Gigabit Ethernet Modules
Please refer to “Cisco 40-Gigabit Ethernet Transceiver Modules Compatibility Matrix” for the most up-to-date information: https://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/40GE_Tx_Matrix.html.
Ordering Information
Table 3 provides part numbers for specific models to assist you with ordering.
Table 3. Part Numbers for Ordering
| Part Numbers |
Description |
| 6800 Series 40 Gigabit Ethernet Modules |
|
| C6800-8P40G |
Catalyst 6800 8-port 40GE with dual integrated dual DFC4-E |
| C6800-8P40G-XL |
Catalyst 6800 8-port 40GE with dual integrated dual DFC4-EXL |
| C6800-8P40G= |
Catalyst 6800 8-port 40GE with dual integrated dual DFC4-E spare |
| C6800-8P40G-XL= |
Catalyst 6800 8-port 40GE with dual integrated dual DFC4-EXL spare |
| Model | C6800-8P40G-XL |
| Category | Catalyst 6800 |
| Subcategory | Catalyst 6800 Kit |
| Description | Catalyst 6800 8 port 40GE with integrated DFC4XL |
| Price | 79,640.42 USD |
| Last Update | 2021-11-01 |
