The Cisco Nexus® B22 Series Blade Fabric Extenders are designed to simplify data center server access architecture and operations in environments in which third-party blade servers are used. The Cisco Nexus B22 Series, together with the Cisco Nexus 2000 Series Fabric Extenders, Cisco Adapter Fabric Extender (Adapter- FEX), and Cisco Data Center Virtual Machine Fabric Extender (VM-FEX), is part of the Cisco® Fabric Extender (FEX) portfolio, which provides a highly scalable unified server access platform supporting 100 Megabit to 10 Gigabit Ethernet over both fiber and copper, rack or blade form factors, and data center bridging protocols. The platform offers the ideal support for the integration of third-party blade chassis into a Cisco Unified Fabric.
The Cisco Nexus B22 Series Blade Fabric Extenders behave like remote line cards for a parent Cisco Nexus switch, together forming a distributed modular system. This architecture simplifies data center access operations and architecture by combining the management simplicity of a single high-density access switch with the cabling simplicity of integrated blade switches and top-of-rack (ToR) access switches (Figure 1).
Figure 1. Cisco Nexus Fabric Extenders Provide Highly Scalable Unified Server Access Connectivity
The Cisco Nexus B22 Series provides the following benefits:
• Highly scalable, consistent server access: Distributed modular system creates a scalable server access environment with no reliance on Spanning-Tree Protocol, providing consistency between blade and rack servers.
• Simplified operations: One single point of management and policy enforcement using upstream Cisco Nexus switches eases the commissioning and decommissioning of blades through zero-touch installation and automatic configuration of fabric extenders.
• Increased business benefits: Consolidation, cabling reduction, investment protection through feature inheritance from the parent switch, and the capability to add functions without the need for a major equipment upgrade of server-attached infrastructure all contribute to reduced operating expenses (OpEx) and capital expenditures (CapEx).
Each member of the Cisco Nexus B22 Series transparently integrates into the I/O module slot of a third-party blade chassis, drawing both power and cooling from the blade chassis itself.
The Cisco Nexus B22 Series provides two types of ports: ports for blade server attachment (host interfaces) and uplink ports (fabric interfaces). Fabric interfaces, located on the front of the Cisco Nexus B22 Series module, are for connectivity to the upstream parent Cisco Nexus switch. Figure 2 is a photograph of the Cisco Nexus B22 Blade Fabric Extender for HP, showing its eight fabric interfaces.
Figure 2. Cisco Nexus B22 Series Blade Fabric Extender for HP
Table 1 lists the Cisco Nexus B22 Series Blade Fabric Extenders. Fabric extenders in both the Cisco Nexus B22 Series and Cisco Nexus 2000 Series can be mixed and matched to a parent switch to provide a variety of connectivity options.
Table 1. Cisco Nexus B22 Series Specifications
Description
Specification
Cisco Nexus B22HP Fabric Extender (blade fabric extender for HP)
16 x 10GBASE-KR internal host interfaces and 8 x 10 Gigabit Ethernet fabric interfaces (Enhanced Small Form-Factor Pluggable [SFP+])
• Up to 24 fabric extenders per Cisco Nexus 5548P, 5548UP, and 5596UP switch (8 fabric extenders for Layer 3 configurations)
• Up to 12 fabric extenders per Cisco Nexus 5010 and 5020 switch
Benefits
Highly Scalable, Consistent Access Layer
Today's data centers must have massive scalability to manage the combination of an increasing number of blade servers and a higher demand for bandwidth from each server. The Cisco Nexus B22 Series increases the scalability of the blade access layer to accommodate both sets of demands without increasing management points within the network.
• Massive scalability: A deployment of Cisco Nexus B22 Series and Cisco Nexus 2000 Series Fabric Extenders connected to a Cisco Nexus parent switch supports highly scalable Gigabit and 10 Gigabit Ethernet environments under a single managed entity, as shown in Table 2.
• Layer 2 scalability: Reliance on Spanning Tree Protocol is eliminated between the fabric extender and the parent switch, thus enabling a large, multipath, loop-free topology. Use of a single management entity to support a large server domain allows policy to be enforced more efficiently and enhances Layer 2 data center access scalability. Use of the virtual PortChannel (vPC) feature also allows fast convergence and effective utilization of bandwidth in Layer 2 environments.
• Consistent server access architecture: When mixed with the Cisco Nexus 2000 Series, the Cisco Nexus B22 Series provides a highly consistent server access architecture supporting 1 Gigabit to 10 Gigabit Ethernet blade server connections and 100 Megabit to 10 Gigabit Ethernet rack server connections over both fiber and copper, supporting unified fabric and Data Center Bridging (DCB) protocols.
Simplified Operations
• Single point of management: The Cisco Nexus B22 Series Blade Fabric Extenders are remote line cards for a Cisco Nexus parent switch. All device configurations are managed on the Cisco Nexus parent switch, and configuration information is downloaded to the Cisco Nexus B22 Blade Series Fabric Extender using in-band communication.
• Software maintenance simplification: The Cisco Nexus B22 Series software is embedded in the Cisco Nexus parent switch software. The fabric extender is a "plug-and-play" device that automatically downloads the software image from the Cisco Nexus parent switch in the same way that a line card downloads software from the supervisor engine in a modular chassis. In-Service Software Upgrade (ISSU) on the fabric extenders provides the capability to perform transparent software upgrades, reducing downtime and allowing customers to integrate the newest features and functions with little or no effect on network operation for Ethernet, storage, and converged network environments.
• Switch feature consistency across a large number of servers: The Cisco Nexus B22 Series forwards all traffic to the parent Cisco Nexus switch over 10 Gigabit Ethernet fabric uplinks. Passing all traffic to the parent switch allows traffic to be switched according to policies established on the parent Cisco Nexus switch with a single point of management. Standardizing on the Cisco Nexus switches for both blade and rack servers allows data centers to support the same switch features across the entire access layer with a single point of management.
• Tenfold reduction in management points: The number of management points is significantly less than when discrete switches are used in the blade chassis. A traditional 12-blade chassis design using a discrete, redundant pair of Gigabit Ethernet blade switches has 24 management points. The equivalent architecture using the Cisco Nexus B22 Series has only 2 management points: a tenfold reduction in management complexity.
Business Benefits
• Cost-effective 10 Gigabit Ethernet solution: The Cisco Nexus B22 Series is the ideal platform for migration from Gigabit Ethernet to 10 Gigabit Ethernet. Scalable 10 Gigabit Ethernet provides 10 times the bandwidth for approximately twice the price of Gigabit Ethernet.
• Consolidation: The Cisco Nexus B22 Series protects investment into the future, supporting evolving data center needs by providing an easy migration path to low-latency 10 Gigabit Ethernet, high-performance computing (HPC), virtual machine-aware networks. In addition, the combination of the Cisco Nexus 5000 Series and Cisco Nexus B22 Series provides a unified network fabric that supports LAN and SAN consolidation. Another benefit of the Cisco FEX Architecture is the ability to collapse data center access and aggregation layers into one single layer.
• Investment protection: The Cisco Nexus B22 Series Blade Fabric Extenders can be mixed and matched with Cisco Nexus 2000 Series Fabric Extenders under a common parent Cisco Nexus switch. New functions can be derived from upstream Cisco Nexus switches, resulting in the capability to add new functions without the need for a major equipment upgrade.
• Cabling reduction with unified fabric: The Cisco Nexus B22 Series can pass Ethernet and Fibre Channel over Ethernet (FCoE) traffic over the same set of uplinks onto the Cisco Nexus fabric, reducing the total number of uplinks required.
• The Cisco Nexus B22 Series supports an optimal cabling strategy that simplifies network operations and prepares for future technologies. Low-cost connections of up to 10 meters to the Cisco Nexus parent switch can be made with copper Twin-ax cable, and longer connections of up to 100 meters can use the Cisco Fabric Extender Transceiver (FET). Standard 10-Gbps optics such as short reach (SR) and long reach (LR) are also supported for distances over 100m.
• Effective bandwidth utilization: Today' blade servers are typically dual-homed to the network. Through vPC feature support, each server can bond its network adapters together into a 20-Gbps or higher PortChannel, achieving both high bandwidth and link redundancy.
• Reduced power and cooling: Cost-effective 10 Gigabit Ethernet solutions, optimal cabling, device consolidation, and efficient bandwidth utilization all contribute to a significant reduction in power and cooling needs in the data center.
Cisco Nexus B22 Series Deployment Scenarios
The Cisco Nexus B22 Series can be used in conjunction with a Cisco Nexus parent switch in two main design scenarios (shown in Figure 3):
• Cisco Nexus B22 Series Blade Fabric Extenders single-connected to one upstream Cisco Nexus parent switch: In this deployment scenario, access-layer redundancy is achieved through redundant server connections to two upstream distributed modular systems, using vPC and server NIC teaming to two Cisco Nexus B22 Series Blade Fabric Extenders.
• Cisco Nexus B22 Series Blade Fabric Extenders dual-connected to two upstream Cisco Nexus parent switches using vPC: In this deployment scenario, access-layer redundancy is achieved through a combination of Cisco Nexus B22 Series Blade Fabric Extenders dual-connected to an upstream parent switch and active-standby server NIC teaming.
Figure 3. Cisco Nexus B22 Series Blade Fabric Extender Design Scenarios, from Left to Right: Cisco Nexus B22 Series Single-Connected to One Upstream Cisco Nexus Parent Switch, and Cisco Nexus B22 Series Dual-Connected to Two Upstream Cisco Nexus Parent Switches
Product Specifications
Tables 3 and 4 provide product specifications for the Cisco Nexus B22 Series. Table 5 lists standards support, and Table 6 lists feature support.
Supported for fabric links only (Cisco Nexus 2000 or B22 Series to Cisco parent switch)
Cisco Fabric Extender Transceiver must be connected to another Cisco Fabric Extender Transceiver
Supported on Cisco Nexus 5000 and 7000 Series Switches fabric links
SFP
Multimode fiber (MMF)
• 25m (OM2)
• 100m (OM3)
Approximately 1W per transceiver
Approximately 0.1 microsecond
Table 6. Cisco Nexus B22 Series Compliance Information
Specification
Description
Regulatory compliance
Products should comply with CE Markings according to directives 2004/108/EC and 2006/95/EC.
Safety
• UL 60950-1
• CAN/CSA-C22.2 No. 60950-1EN 60950-1
• IEC 60950-1AS/NZS 60950-1GB4943
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
• EN50082-1
• EN61000-6-1
• EN55024
• CISPR24
• EN300386
• KN 61000-4 series
RoHS
RoHS 6 compliant
Feature support for the Cisco Nexus B22 Series is derived mainly from the parent switch feature set. Therefore, consult the Cisco Nexus 5000 and 7000 Series data sheets for a comprehensive list of features supported.
Table 7. Feature Support for the Cisco Nexus B22 Series
Description
Specification
Layer 2 features
• Layer 2 VLAN trunks
• IEEE 802.1Q VLAN encapsulation
• Cisco EtherChannel technology on uplinks
• PortChannel on server ports
• Advanced PortChannel hashing
• Jumbo frames on all ports (up to 9216 bytes)
• Pause frames (priority flow control [PFC] and IEEE 802.3x)
• Private VLANs (promiscuous only on uplinks)
• Local multicast replication
• Autonegotiation to 1 Gigabit Ethernet; full duplex on host interfaces
Enhanced Ethernet
DCB
Quality of service (QoS)
• Layer 2 IEEE 802.1p (class of service [CoS])
• 8 hardware queues per port
• Per-port QoS configuration
• Local policing
• CoS trust
• Configurable tail-drop threshold
• Egress strict-priority queuing
• Egress port-based scheduling: Weighted Round Robin (WRR)
High availability
• Uplink traffic management through Cisco EtherChannel hashing or static port pinning
• vPCs for dual-homed active-active connectivity across two Cisco Nexus parent switches
• vPCs for dual-homed straight-through NIC connectivity across two Cisco Nexus B22 Series Blade Fabric Extenders
• ISSU
Security
Local classification (256 access control list [ACL] entries)
Management
• Fabric extender management using in-band management
• UID and Health LEDs
• Syslog
• Simple Network Management Protocol Versions 1, 2, and 3 (SNMP v1, v2, and v3)
• Enhanced SNMP MIB support
• XML (NETCONF) support
• Remote monitoring (RMON)
• Cisco Discovery Protocol Versions 1 and 2
• Cisco Switched Port Analyzer (SPAN) source on server ports
• Cisco Data Center Network Manager (DCNM); the Cisco Nexus B22 Series is managed through the parent Cisco Nexus switch using Cisco DCNM and standard SNMP, XML interfaces, and the command-line interface (CLI)
Configuration MIBs
• ENTITY-MIB
• IF-MIB
• FABRIC-EXTENDER MIB
• CISCO-ENTITY-EXT-MIB
• CISCO-ENTITY-FRU-CONTROL-MIB
• CISCO-ENTITY-SENSOR-MIB
• CISCO-ETHERNET-FABRIC-EXTENDER-MIB
Monitoring MIBs
RMON-MIB
Industry standards
• IEEE 802.1p: CoS prioritization
• IEEE 802.1Q: VLAN tagging
• IEEE 802.3: Ethernet
• IEEE 802.3ae: 10 Gigabit Ethernet
• IEEE 802.3ap: 10GBASE-KR
• SFF 8431 SFP+ support
• 10GBASE-SR
• 10GBASE-LR
• RMON
• SFF-8461
Cisco Nexus B22 Series Ordering Information
Table 8 provides ordering information for the Cisco Nexus B22 Series Blade Fabric Extenders.
Table 8. Ordering Information
Part Number
Description
Chassis
N2K-B22HP-P
Cisco Nexus B22 Blade Fabric Extender for HP
Orderable through HP only
N2K-B22HP-F
Cisco Nexus B22 Blade Fabric Extender for HP
with 16 x Fabric Extender Transceiver modules
Orderable through HP only
Transceivers and Cables
SFP-10G-SR(=)
10GBASE-SR SFP+ Module
SFP-10G-LR(=)
10GBASE-LR SFP+ Module. See Table 3 for distance limitations
SFP-H10GB-CU1M(=)
10GBASE-CU SFP+ Passive Cable 1 Meter
SFP-H10GB-CU3M(=)
10GBASE-CU SFP+ Passive Cable 3 Meter
SFP-H10GB-CU5M(=)
10GBASE-CU SFP+ Passive Cable 5 Meter
SFP-H10GB-ACU7M(=)
10GBASE-CU SFP+ Active Cable 7 Meter
SFP-H10GB-ACU10M(=)
10GBASE-CU SFP+ Active Cable 10 Meter
Service and Support
Technical support for the Cisco Nexus B22 Blade Fabric Extenders can be obtained from either Cisco or the blade vendor who sold the fabric extender.
• For configuration or troubleshooting assistance, the Cisco Nexus B22 Blade Fabric Extenders are covered under the Cisco support contract of the parent Cisco Nexus switch. For information about obtaining documentation, submitting a service request, and gathering additional information, see the monthly "What's New in Cisco Product Documentation," which also lists all new and revised Cisco technical documentation, at http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html Subscribe to "What's New in Cisco Product Documentation" as an RSS feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service. Cisco currently supports RSS Version 2.0.
• For hardware replacement of the Cisco Nexus B22HP under warranty, contact Hewlett-Packard. In the United States, for contact options see the Contact HP United States webpage. To contact HP by phone:
– Call 1-800-HP-INVENT (1-800-474-6836). This service is available 24 hours a day, 7 days a week. For continuous quality improvement, calls may be recorded or monitored.
– If you have purchased a Care Pack (service upgrade), call 1-800-633-3600. For more information about Care Packs, refer to the HP website. In other locations or for the name of the nearest HP authorized reseller, see the Contact HP worldwide (in English) webpage.
