Cisco NCS-57B1-6D24H-S Router
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As global data center and cloud traffic continues to grow at a rapid pace, network providers are increasingly turning to 400GE technology to build scalable core and aggregation networks. The Cisco Network Convergence System (NCS) 5700 Series is designed to meet these demands by integrating advanced forwarding ASIC designs with the powerful Cisco IOS XR7 operating system.
This series represents a significant evolution in fixed-system networking, offering high-density performance in a compact, power-efficient 1-rack-unit (1RU) form factor. By leveraging flexible database profiles, the hardware allows for the reconfiguration of resources based on specific network roles, ensuring that service providers can maintain operational efficiency while scaling their infrastructure to support modern, high-bandwidth requirements.
Product overview
The Cisco NCS 5700 Series currently features two primary fixed chassis models: the NCS-57B1-6D24-SYS and the NCS-57B1-5DSE-SYS. Both units are engineered to provide massive forwarding capacity, with the 6D24 model offering up to 4.8 Tbps of throughput and the 5DSE model providing 4.4 Tbps. These systems are built to handle intensive workloads through features like deep packet buffering, full line-rate MACsec encryption, and support for advanced timing protocols such as Class C 1588 PTP and Synchronous Ethernet.
Both chassis are powered by the carrier-class 64-bit Cisco IOS XR7 software, which emphasizes automation, telemetry, and service agility. The software supports a wide range of modern networking capabilities, including segment routing, EVPN, and third-party application hosting. Designed for reliability, both models include redundant power supplies and fan trays, ensuring consistent uptime for mission-critical network environments.
Features and benefits
- High-Density Connectivity: Supports a wide range of Ethernet speeds, including 10, 25, 40, 100, and 400 Gigabit Ethernet, utilizing QSFP-DD optics.
- Advanced Software Capabilities: Runs on Cisco IOS XR7, enabling features like Zero-Touch Provisioning (ZTP), iPXE boot, and comprehensive telemetry for better network visibility.
- Robust Security: Includes full line-rate MACsec encryption on all ports and comprehensive control-plane and management-plane protection.
- Flexible Resource Allocation: Uses flexible database profiles to reconfigure ASIC and TCAM resources based on the specific needs of the network role.
- Precision Timing: Supports Class C 1588 Precision Time Protocol (PTP) and Synchronous Ethernet (SyncE) for high-accuracy timing requirements.
- Operational Efficiency: Compact 1RU design with hot-swappable, redundant power supplies and fan trays to minimize downtime and simplify maintenance.
- Scalable Routing: Offers significant route scale, with the 5DSE model supporting up to 8 million Forwarding Information Base (FIB) entries.
- Automation and Programmability: Native support for NETCONF/YANG models, machine-to-machine interfaces, and application hosting to streamline network management.
Product overview
With global data center and public/private cloud network traffic growing at more than 25 percent annually, network providers and hyperscalers alike are rapidly adopting 400GE as the basis for their mass-scale core and aggregation networks. The Cisco Network Convergence System 5700 Series builds on the success of previous Cisco NCS 5500 fixed systems by combining the latest in forwarding ASIC design with the advanced innovation of Cisco IOS XR7.
The NCS-57B1-6D24-SYS and NCS-57B1-5DSE-SYS break new ground by combining 4.8 Terabits of 400GE/100GE optimized forwarding capacity, QSFP-DD optics, deep packet buffering, full line-rate MACsec, Class C 1588 Precision Time Protocol (PTP), and Synchronous Ethernet (SyncE) in an extremely power-efficient, 1-rack-unit package. The industry-leading Cisco IOS XR7 pushes the scalability of the hardware even further through the use of flexible database profiles that allow ASIC and TCAM resources to be reconfigured by network role. Next-generation security, automation, telemetry, segment routing, EVPN, and Equal-Cost Multipathing (ECMP) capabilities make XR7 the perfect complement to the NCS-57B1 series.

Cisco NCS-57B1-6D24-SYS chassis

Cisco NCS-57B1-5DSE-SYS chassis
Cisco IOS XR Software overview
The Cisco NCS-57B1 Series is powered by an industry-leading, carrier-class 64-bit version of IOS XR7 (XR7) NOS designed on operational efficiency, optimized utilization, and service agility (evolved programmable network). Cisco IOS XR Software offers rich features such as iPXE boot, autoprovisioning, and native support for third-party application hosting, machine-to-machine interface, telemetry, and flexible software package delivery.
Software requirement
The Cisco NCS-57B1-6D24-SYS fixed chassis supports Cisco IOS XR Software Release 7.3.1 and later.
The Cisco NCS-57B1-5DSE-SYS fixed chassis supports Cisco IOS XR Software Release 7.3.1 and later.
Specifications
Tables 1 through 4 list key specifications for the Cisco NCS-57B1-6D24-SYS and NCS-57B1-5DSE-SYS fixed chassis.
Table 1. Features and benefits
| Feature |
NCS-57B1-6D24-SYS specification |
NCS-57B1-5DSE-SYS specification |
| Integrated interface |
10, 25, 40, 100, and 400 Gigabit Ethernet support |
10, 25, 40, 100, and 400 Gigabit Ethernet support |
| Industry-leading, carrier-class Cisco IOS XR Software |
Visibility and telemetry Machine-to-machine interface Application hosting Flexible platform and packaging Modularity Automation |
Visibility and telemetry Machine-to-machine interface Application hosting Flexible platform and packaging Modularity Automation |
| Management ports |
Provide easy access to system console |
Provide easy access to system console |
| External USB port |
Helps simplify image and file management |
Helps simplify image and file management |
| Solid-state drive (SSD) |
Memory for storing software image, configuration, logging, and recovery |
Memory for storing software image, configuration, logging, and recovery |
| Redundancy |
Redundant fan tray Redundant AC or DC power supply |
Redundant fan tray Redundant AC or DC power supply |
Table 2. Specifications
| Feature |
NCS-57B1-6D24-SYS specification |
NCS-57B1-5DSE-SYS specification |
| Chassis product ID |
NCS-57B1-6D24-SYS - Flexible Consumption Model (FCM) NCS-57B1-6D24H-S – Perpetual |
NCS-57B1-5DSE-SYS - Flexible Consumption Model (FCM) NCS-57B1-5D24H-SE – Perpetual |
| Interfaces |
6 ports of 400G 24 ports of 100G |
5 ports of 400G 24 ports of 100G |
| Integrated route processor |
Cisco IOS XR 64-bit software running on 8-core x86 CPU at 2.0 GHz |
Cisco IOS XR 64-bit software running on 8-core x86 CPU at 2.0 GHz |
| Management ports |
RJ-45 ports for console and management |
RJ-45 ports for console and management |
| Flexible forwarding ports |
6x 400G ports with Quad Small Form-Factor Pluggable Double Density (QSFP-DD) 24x 100G ports with Quad Small Form-Factor Pluggable Double Density (QSFP-DD) All ports support QSFP-28 optics 6x 400 and 12x 100G (top row) support ZR+/ZR Optics and breakout (use of breakout disables lower row of 100G ports) SFP+ optics supported with the optional QSA Adapter* |
5x 400G ports with Quad Small Form-Factor Pluggable Double Density (QSFP-DD) 24x 100G ports with Quad Small Form-Factor Pluggable Double Density (QSFP-DD) All ports support QSFP-28 optics 5x 400 and 12x 100G (top row) support ZR+/ZR Optics and breakout (use of breakout disables lower row of 100G ports) SFP+ optics supported with the optional QSA Adapter* |
| System memory |
32 GB |
32 GB |
| SSD drive |
128 GB |
128 GB |
| Timing ports |
1 Pulse Per Second (PPS) in/out, 10 MHz in/out, Time of Day (ToD) Internal Global Navigation Satellite System (GNSS) with antenna port |
1 Pulse Per Second (PPS) in/out, 10 MHz in/out, Time of Day (ToD) Internal Global Navigation Satellite System (GNSS) with antenna port |
| Performance |
Up to 4.8 Tbps of system throughput Full line-rate MACsec encryption capable on all ports* |
Up to 4.4 Tbps of system throughput Full line-rate MACsec encryption capable on all ports* |
| Route scale |
Up to 2.7M Forwarding Information Base (FIB) entries * |
Up to 8M Forwarding Information Base (FIB) entries* |
| Power and cooling features |
2 hot-swappable power supplies providing 1+1 redundancy 6 hot-swappable fan trays providing n+1 redundant cooling |
2 hot-swappable power supplies providing 1+1 redundancy 6 hot-swappable fan trays providing n+1 redundant cooling |
| Power consumption |
Typical: 500W at 25° Celsius (77°F) without optics Maximum: 610W at 40° Celsius (104°F) without optics |
Typical: 520W at 25° Celsius (77°F) without optics Maximum: 630W at 40° Celsius (104°F) without optics |
| Physical specifications |
Height: 1RU 1.72 in. (4.30 cm) Width: 17.3 in. (43.9 cm) Depth: 23.60 in. (60.0 cm) Weight: 29.05 lb (13.18 kg) including Fans and PSUs |
Height: 1RU 1.72 in. (4.30 cm) Width: 17.3 in. (43.90 cm) Depth: 23.60 in. (60.0 cm) Weight: 29.25 lb (13.27 kg) including Fans and PSUs |
Table 3. Software features supported in Cisco IOS XR Software Release 7.3.1 and later
| Feature |
Specifications |
| Layer 2 |
● Layer 2 switch ports
● IEEE 802.1Q VLAN encapsulation/Q-in-Q encapsulation
● IEEE 802.1ad
● Cisco Bundle Ethernet technology (up to 64 ports per Ethernet Bundle)
● Link Aggregation Control Protocol (LACP): IEEE 802.3ad
● Jumbo frames on all ports (up to 9216 bytes)
● Layer 2 ingress Access Control List (ACL)
● Layer 2 AC-AC cross-connect
● Ethernet Flow Point (EFP) and VLAN trunks
● Virtual Router Redundancy Protocol (VRRP)
|
| Layer 3 |
● IPv4 and IPv6 unicast
● Layer 3 interfaces: Physical and subinterfaces
● Routing protocols: static, Open Shortest Path First (OSPFv2), OSPFv3, Intermediate System to Intermediate System (IS-IS), IS-ISv6, and Border Gateway Protocol (BGP)
● 64-way Equal-Cost Multipath (ECMP)
● Layer 3 ingress and egress IPv4 ACL and IPv6 ACL
● Bidirectional Forwarding Detection (BFD)
● Cisco Ethernet bundle technology (up to 64 ports per Ethernet bundle)
● LACP: IEEE 802.3ad
● Jumbo frame support (up to 9216 bytes)
● VRRP
● Layer 3 VPN
|
| Multiprotocol Label Switching (MPLS) |
● Label switching
● Label Distribution Protocol (LDP)
● MPLS Traffic Engineering
● Ethernet over MPLS (EoMPLS)
|
| Segment Routing (SR) |
● Segment routing–based transport
● IS-IS extensions to segment routing
● OSPF extensions to segment routing
● BGP egress peering engineering
● Segment Routing Traffic Engineering (SR-TE)
● Segment Routing Topology-Independent Loop Free Alternatives (TI-LFA)
|
| Quality of Service (QoS) |
● Hierarchical QoS
● Ingress classification based on Class of Service (Layer 2), IP Differentiated Service Code Point (DSCP) (Layer 3), IP ACL (Layer 3/4), IP precedence (type of service) (Layer 3)
● DSCP marking
● 8 queues for user traffic
● Support for priority queuing
|
| Automation |
● Zero-Touch Provisioning (ZTP), iPXE
● Configuration management
● Network Configuration Protocol (NETCONF/YANG model)
|
| Security |
● Provides comprehensive network security features, including ACLs; control-plane protection; management plane protection; routing authentications; Authentication, Authorization, and Accounting (AAA) and TACACS+; Secure Shell (SSH) Protocol; Simple Network Management Protocol (SNMP) v3; and Route Policy Language (RPL) support
● Layer 2 ingress ACLs
● Layer 3 ingress ACLs
|
| Management |
● MIB, XML, JSON, GPB, and SNMP
● MPLS Operations, Administration, and Maintenance (OAM) (Label Switched Path [LSP] ping, LSP traceroute)
● Ethernet OAM
|
Table 4. Environmental properties
| Property |
Specifications |
| Normal operating temperature |
PortSE intake supply: 32° to 104°F (0° to 40°C) at sea level |
| Nonoperating (storage) temperature |
-40° to 158°F (-40° to 70°C) |
| Operating humidity |
5% to 95% (noncondensing) |
| Storage (relative) humidity |
5% to 95% at 40°C per NEBS GR-63-Core |
| Altitude |
0 to 9842 ft (0 to 3000 m) |
| Power inputs |
Worldwide ranging AC (90 to 265V, 50 to 60 Hz) Worldwide ranging DC (-40 to -72V) |
| Airflow |
Front to back |
Regulatory standards compliance
Table 5. Regulatory standards compliance: Safety and EMC
| Specification |
Description |
| Regulatory compliance |
Products should comply with CE Markings according to directives 2004/108/EC and 2006/95/EC. |
| Safety |
● UL 60950-1 Second Edition
● CAN/CSA-C22.2 No. 60950-1 3rd Edition
● EN 60950-1 Second Edition
● IEC 60950-1 Second Edition
● EN 62368-1, 3rd Edition
● IEC 62368-1, 3rd Edition
● UL 62368-1 3rd Edition
● GB4943
*
|
| EMC: Emissions |
● 47CFR Part 15 (CFR 47) Class A
● AS/NZS CISPR22 Class A
● CISPR22 Class A
● EN55022 Class A
● ICES003 Class A
● VCCI Class A
● EN61000-3-2
● EN61000-3-3
● KN22 Class A
● CNS13438 Class A
|
| EMC: Immunity |
● EN55024
● CISPR24
● EN300386
● KN 61000-4 series
|
| RoHS |
The product is RoHS-6 compliant with exceptions for leaded-Ball Grid-Array (BGA) balls and lead press-fit connectors. |
| NEBS |
Designed for compliance to GR-1089-CORE and GR-63-CORE.** |
Supported transceiver modules
Refer to the Cisco NCS 5500 Series supported transceivers module matrix: https://tmgmatrix.cisco.com/
Ordering information
Table 6. Ordering information – Flexible Consumption Model
| Part number |
Product description |
| NCS-57B1-6D24-SYS |
NCS57B1 Fixed Base HW Flexible Consumption Need Smart Lic |
| NCS-57B1-6D24-TRK |
55B1-6D24 Base Hardware Tracking PID |
| PSU2KW-ACPI |
2000W AC Power Module with Port-side Air Intake |
| PSU2KW-DCPI |
2000W 48V DC Power Module with Port-side Air Intake |
| NC57-B1-FAN1-FW |
NCS 5700 Fan Tray 1RU Chassis Port-S Intake/Front-to-back |
| 8200-1RU-KIT |
Rack Mount Kit for 1RU Chassis |
| NCS-57B1-5DSE-SYS |
NCS57B1 Fixed Base HW Flexible Consumption Need Smart Lic |
| NCS-57B1-5DSE-TRK |
57B1-5DSE Scale Hardware Tracking PID |
| PSU2KW-ACPI |
2000W AC Power Module with Port-side Air Intake |
| PSU2KW-DCPI |
2000W 48V DC Power Module with Port-side Air Intake |
| NC57-B1-FAN1-FW |
NCS 5700 Fan Tray 1RU Chassis Port-S Intake/Front-to-back |
| 8200-1RU-KIT |
Rack Mount Kit for 1RU Chassis |
Table 7. Ordering information – Flexible Consumption Model Software Licenses
| Part number |
Product description |
| ESS-100G-RTU-2 |
NCS 5500 Core and Aggregation Essentials SW RTU v2.0 100G |
| ADN-100G-RTU-2 |
NCS 5500 Core and Aggregation Advantage w/ Essentials SW RTU v2.0 100G |
| ESS-100G-SIA-3 |
NCS 5500 Core and Aggregation Essentials SIA per 100G 3-5 Year Subscription |
| ADN-100G-SIA-3 |
NCS 5500 Core and Aggregation Advantage w/ Essentials SIA per 100G 3-5 Year Subscription |
| ESS-100G-SIA-5 |
NCS 5500 Core and Aggregation Essentials SIA per 100G 5-10 Year Subscription |
| ADN-100G-SIA-5 |
NCS 5500 Core and Aggregation Advantage w/ Essentials SIA per 100G 5-10 Year Subscription |
Table 8. Ordering information – Perpetual
| Part number |
Product description |
| NCS-57B1-6D24H-S |
NCS57B1 Fixed Base HW 6x400, 24x100 all QSFP-DD chassis |
| PSU2KW-ACPI |
2000W AC Power Module with Port-side Air Intake |
| PSU2KW-DCPI |
2000W 48V DC Power Module with Port-side Air Intake |
| NC57-B1-FAN1-FW |
NCS 5700 Fan Tray 1RU Chassis Port-S Intake/Front-to-back |
| 8200-1RU-KIT |
Rack Mount Kit for 1RU Chassis |
| XR-NC57-P-07.03 |
Cisco IOS XR IP/MPLS Core Software |
| XR-NC57-PK9-07.03 |
Cisco IOS XR IP/MPLS Core Software 3DES |
| NCS-57B1-5D24H-SE |
NCS57B1 Fixed-Scale HW 5x400, 24x100 all QSFP-DD chassis |
| PSU2KW-ACPI |
2000W AC Power Module with Port-side Air Intake |
| PSU2KW-DCPI |
2000W 48V DC Power Module with Port-side Air Intake |
| NC57-B1-FAN1-FW |
NCS 5700 Fan Tray 1RU Chassis Port-S Intake/Front-to-back |
| 8200-1RU-KIT |
Rack Mount Kit for 1RU Chassis |
| XR-NC57-P-07.03 |
Cisco IOS XR IP/MPLS Core Software |
| XR-NC57-PK9-07.03 |
Cisco IOS XR IP/MPLS Core Software 3DES |
Table 9. Ordering information – Perpetual Software Licenses
| Part number |
Product description |
| NC55P-BDL-100T |
NCS 5500 SW 4 x License Bundle for NCS 5500 Base Per 100G BW |
| NC55P-ADVL3-100T |
NCS 5500 L3VPN Lic for NCS 5500 Base Per 100G Bandwidth |
| NC55P-ADVL2-100T |
NCS 5500 L2VPN Lic for NCS 5500 Base Per 100G Bandwidth |
| NC55P-CRAGR-100T |
NCS 5500 Core and Aggr Lic for NCS 5500 Base Per 100G BW |
| NC55P-PEER-100T |
NCS 5500 Peering Lic for NCS 5500 Base Per 100G Bandwidth |
| NC55P-ADVDC-100T |
NCS 5500 Adv Data Center Lic for NCS 5500 Base Per 100G BW |
| NC55P-MSEC-100T |
NCS 5500 MACsec Lic for NCS 5500 Base Per 100G Bandwidth |
| NC55P-TIMING-F |
NCS 5500 Timing and Mobility Lic for Fixed Chassis |
For more information
Learn more about the Cisco NCS 5500 Series.
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| Model | NCS-57B1-6D24H-S-RF |
