The Cisco Nexus
® 7000 M1-Series 48-Port Gigabit Ethernet Modules are highly scalable modules designed for performance-based mission-critical Ethernet networks. Cisco Nexus 7000 M1-Series 48-Port modules have both copper and fiber options for Gigabit Ethernet modules. The copper module is a 48-port 10/100/1000 Ethernet module with RJ-45 connectors (Figure 1), and the fiber module is a 48-port Gigabit Ethernet module with SFP optics (Figure 2).
The Cisco Nexus 7000 Series Switches comprise a modular data center-class product line designed for highly scalable 10 Gigabit Ethernet networks with a fabric architecture that scales beyond 15 terabits per second (Tbps). Designed to meet the requirements of the most mission-critical data centers, it delivers continuous system operation and virtualized pervasive services. The Cisco Nexus 7000 Series is based on the proven Cisco
® NX-OS Software operating system, with enhanced features to deliver real-time system upgrades with exceptional manageability and serviceability. Its innovative design is purpose built to support end-to-end data center connectivity, consolidating IP, storage, and interprocess communication (IPC) networks onto a single Ethernet fabric.
The Cisco Nexus 7000 M1-Series 48-Port Gigabit Ethernet Modules with 46 Gbps of bandwidth to the fabric are high-performance, highly scalable modules designed for mission-critical Ethernet networks. Populating the Cisco Nexus 7000 18-Slot Switch chassis with these modules delivers up to 768 ports of Gigabit Ethernet in a single chassis. Populating the Cisco Nexus 7000 10-Slot Switch chassis with these modules delivers up to 384 ports of Gigabit Ethernet in a single chassis. The Cisco Nexus 7000 M1-Series 48-Port Gigabit Ethernet Modules provide 48 Gbps of local switching and are excellent for the access layer of a data center network, in which high density, high performance, and continuous system operation are crucial.
All Cisco Nexus 7000 Series I/O modules contain an integrated forwarding engine. This architecture scales the forwarding performance of the chassis linearly by the number of I/O modules employed. The forwarding engine on the Cisco Nexus 7000 M1-Series 48-Port Gigabit Ethernet Modules are part of the Cisco Nexus 7000 M-Series forwarding engines.
The M-Series forwarding engine on the Gigabit Ethernet modules delivers 60 million packets per second (Mpps) of Layer 2 and 3 IPv4 unicast forwarding or 30 Mpps of IPv6 unicast forwarding across all ports on a single I/O module. A 10-slot chassis with eight M-Series I/O modules delivers up to 480 Mpps of forwarding. Multicast forwarding is built into the I/O module performing egress replication. The M-Series forwarding engine also delivers access control list (ACL) filtering, marking, rate limiting, and NetFlow with no degradation of performance. Powerful ACL processing supports up to 64,000 entries per module, where entries can address Layer 2, 3, and 4 fields in addition to new Cisco metadata fields that employ security group tags (SGTs).
The Cisco Nexus 7000 M1-Series 48-Port gigabit Ethernet Modules offer exceptional security, with integrated hardware support for Cisco TrustSec
® technology. This security includes line rate data confidentiality, data integrity, and ACL processing for Security Group Tags. Data confidentiality and integrity conform to the IEEE MAC security standard (IEEE 802.1AE [MACsec]). All 48 ports on the module support the Advanced Encryption Standard (AES) cipher using a 128-bit key. New security ACLs are enhanced through hardware support for Cisco metadata headers capable of carrying SGTs. Security group ACLs (SGACLs) use SGT information to provide hardware-based enforcement of security policies. This feature removes dependencies on IP addresses, thus improving scalability and simplifying manageability.
The fabric interface on the Cisco Nexus 7000 M1-Series 48-Port Gigabit Ethernet Modules deliver 46 Gbps of bandwidth in each direction. Traffic destined for a different module is distributed across up to five fabric modules. At least one fabric module is required in the chassis. The installation of two fabric modules in the chassis delivers fabric fault tolerance with no loss of bandwidth.
The Cisco Nexus 7000 M1-Series 48-Port Gigabit Ethernet Modules buffer data in virtual output queues (VOQs) before the data flows to the fabric. The data flow is controlled by a central arbiter on the supervisor module using a credit-based buffer design. This architecture offers a lossless fabric that delivers quality of service (QoS) and fairness across all ports, even during congestion.
Table 1 summarizes the features and benefits of the Cisco Nexus 7000 M1-Series 48-Port Gigabit Ethernet Modules.
Table 1. Features and Benefits*
High-density 48-port Gigabit Ethernet module
Offers up to 768 Gigabit Ethernet ports in the 18-slot chassis and 384 Gigabit Ethernet ports in the
10-slot chassis for efficient and scalable network designs
VOQ and centralized arbiter
Enables fairness when one or more destinations are congested and future support for lossless unified I/O
Load sharing across all fabric modules
Through its high-availability design, shares bandwidth across all fabric modules simultaneously for optimal performance
Through its fully distributed data plane, offers high-performance parallel forwarding
Multiprotocol Label Switching (MPLS)
M1-based line cards with a comprehensive feature set, supports MPLS in the hardware
Integrated hardware support for Cisco TrustSec technology
Simplifies and scales access control by using SGTs and SGACLs and delivers data confidentiality and data integrity on all 48 ports using the IEEE 802.1AE standard
Online insertion and removal (OIR)
Supports hot insertion and removal for continuous system operation
Identification (ID) LED
Through the beacon feature, allows the administrator to clearly identify the module for a service condition; ports on the I/O module can send beacons as well
* Initial software releases may support a subset of the overall hardware capabilities. Refer to Cisco Nexus 7000 Series NX-OS release notes for up-to-date software version information and feature support details.
Table 2 lists the productions specifications for the Cisco Nexus 7000 M1-Series 48-Port 10/100/1000 Ethernet Module and Cisco Nexus 7000 M1-Series 48-port Gigabit Ethernet Module with SFP Optics.
Table 2. Product Specifications
48-Port 10/100/1000 Ethernet Module (Copper)
48-Port 1 Gigabit Ethernet Module (Fiber)
Cisco NX-OS Software Release 4.0 or later (minimum requirement)
Cisco NX-OS Software Release 4.1 or later (minimum requirement)
• Supported in Cisco Nexus 7000 Series 9-, 10-, and 18-slot chassis
• Supported Fabric-1 or Fabric-2 fabric modules
• Supported SUP1, SUP2 or SUP2E Supervisor modules
1 GB DRAM
• Status: Green (operational), red (faulty), or orange (module booting)
• Link: Green (port enabled and connected), orange (port disabled), off (port enabled and not connected), or blinking green and orange in conjunction with ID LED blue (port flagged for identification; beacon)
• ID: Blue (operator has flagged this card for identification; beacon) or off (module not flagged)
• Scriptable command-line interface (CLI)
• Cisco Data Center Network Manager (DCNM) GUI
• Cisco DCNM 4.0
Reliability and availability
48 ports of 10/100/1000 Ethernet using RJ-45 connectors
48 ports of Gigabit Ethernet using SFP optics
Maximum port density
384 ports of 10/100/1000 Ethernet for 10-slot chassis and 768 ports of 10/100/1000 Ethernet for 18-slot chassis
384 ports of Gigabit Ethernet for 10-slot chassis and 768 ports of Gigabit Ethernet for 18-slot chassis
Time domain reflectometry
Helps find cable faults
All 48 ports have built-in IEEE 802.1AE MAC security and an AES cipher with a 128-bit key (requires a software license to enable)
• Telecommunications Carrier Group (TCG) Checklist
• Qwest NEBS requirements
• Telecommunications Carrier Group (TCG) Checklist
• ATT NEBS requirements
• ATT TP76200 level 3 and TCG Checklist
• ETSI 300 019-1-1, Class 1.2 Storage
• ETSI 300 019-1-2, Class 2.3 Transportation
• ETSI 300 019-1-3, Class 3.2 Stationary Use
• UL/CSA/IEC/EN 60950-1
• AS/NZS 60950
Cisco Nexus 7000 Series Switches come with the standard Cisco 1-year limited hardware warranty
Table 3 summarizes the interfaces, cabling specifications, and distances supported by the Cisco Nexus 7000 M1-Series 48-Port Gigabit Ethernet Module (SFP Optics). Not all optics are supported in the first software release. Refer to the Cisco Nexus 7000 Series NX-OS Release Notes for up-to-date software version information and optics support details.
Table 3. Gigabit Ethernet Interface Distances and Options1
Cisco Nexus 7000 Series 48-Port 10/100/1000 Ethernet Module
Cisco Nexus 7000 Series 48-Port Gigabit Ethernet Module (SFP)
Service and Support
Cisco offers a wide range of services to help accelerate your success in deploying and optimizing Cisco Nexus 7000 Series Switches in your data center. Our innovative services are delivered through a unique combination of people, processes, tools, and partners and are focused on helping you increase operational efficiency and improve your data center network. Cisco Advanced Services uses an architecture-led approach to help you align your data center infrastructure with your business goals and provide long-term value. Cisco SMARTnet
® Service helps you resolve mission-critical problems with direct access at any time to Cisco network experts and award-winning resources. With this service, you can take advantage of the Cisco Smart Call Home service capability, which offers proactive diagnostics and real-time alerts on your Cisco Nexus 7000 Series Switches. Spanning the entire network lifecycle, Cisco Services helps maximize investment protection, optimize network operations, provide migration support, and strengthen your IT expertise. For more information about Cisco Data Center Services, visit