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IBM Ethernet Switch B48Y
IBM System x at-a-glance guide
The IBM Ethernet Switch B48Y is a high-performance, feature-rich, easy-to-manage 1 GbE solution for
network device access. Purpose-built for the data center with a wire-speed, non-blocking architecture,
high-availability features including optional redundant and hot-swappable power supplies and fans, and
rack-friendly airflow, the B48Y enables organizations to scale easily in virtualized and non-virtualized data
center environments.
The switch comes fully featured with Layer 2 and Layer 3 capabilities, giving organizations ultimate
flexibility in deployment options. With the optional 4-port 10 GbE interface module, a row of up to eight
switches can be unified into a single logical chassis with 384 ports using IronStack technology, greatly
simplifying management and increasing virtual machine mobility.
The switch runs a feature-rich and mature IronWare operating system with an industry-standard
command-line interface (CLI), minimizing re-training and operational costs. Supporting a full range of RFC
and IEEE standards for interoperability, along with compatibility for vendor-specific protocols such as
Cisco Discovery Protocol (CDP) and Per-VLAN Rapid Spanning Tree Plus (PVRST+), the B48Y
integrates seamlessly into existing network infrastructures.
Figure 1. IBM Ethernet Switch B48Y with optional 4-port 10 GbE SFP+ interface module (front view)
Figure 2. IBM Ethernet Switch B48Y (back view)
Did you know
As server utilization increases due to virtualization on more powerful hardware such as the IBM innovative
eX5 architecture, so does the average and burst bandwidth utilization on the switches in the network. To
alleviate these performance bottlenecks, the B48Y is capable of supporting four 10 GbE uplinks, double
the bandwidth of most standard 1 GbE switches, to enable near 1:1 subscription during periods of heavy
traffic flows with extremely low port-to-port latencies. Even with its outstanding performance, the B48Y is
highly power efficient, using up to 36% less power than competing switches.
IBM Ethernet Switch B48Y
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Table of Contents
Related Manuals for IBM B48Y
Summary of Contents for IBM B48Y
- Page 1 Cisco Discovery Protocol (CDP) and Per-VLAN Rapid Spanning Tree Plus (PVRST+), the B48Y integrates seamlessly into existing network infrastructures. Figure 1. IBM Ethernet Switch B48Y with optional 4-port 10 GbE SFP+ interface module (front view) Figure 2. IBM Ethernet Switch B48Y (back view)
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Page 2: Part Number Information
This solution can be a cost-effective alternative to a design using an end-of-row, modular chassis. The IBM B48Y is complemented by a full Ethernet and IP product portfolio, allowing an organization to standardize on a network infrastructure running on the proven IronWare operating system. - Page 3 Power cords are not included and must be specified at the time of order. The B48Y has a C14 inlet to receive a C13 power plug. Table 2 lists the available power cable options. Table 2. Power cord options Description IBM part number Line cord –...
- Page 4 Table 4 lists the orderable part numbers for additional options available through IBM System Networking HVEC channels. Table 4. IBM part numbers and feature codes for ordering (System Networking HVEC) Description IBM part number IBM feature code 4-port 100/1000 MbE Interface Module (SFP, works as...
- Page 5 Brocade 10Gb CNA, QLogic 10Gb CNA, and Emulex 10Gb Virtual Fabric Adapter for IBM System x. Compatibility with other 10 GbE server adapters and network devices is up to the user to determine.
- Page 6 IronStack technology found on the IBM Ethernet Switch B48Y and matured over several product generations provides such capabilities along with resilient operations including automatic switch failover, hot switch insertion and removal, and automatic detection of shortest path when the network changes.
- Page 7 Stacking is supported in both ring and linear topologies (Figure 5). Figure 5. IronStack technology found on the B48Y enables a logical chassis of up to 384 ports Consider using a ring or closed-loop topology to ensure un-interrupted stack operation in the event of a switch or link failure.
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Page 8: Features And Benefits
176 Gbps of internal forwarding performance, the B48Y ensures that your network devices have the bandwidth that they require. Built for the data center: The B48Y features back-to-front airflow, allowing installation into racks with a hot-cold aisle design without the need for complicated air baffles. All ports are found on the front side of the switch for easy serviceability. -
Page 9: Specifications
Specifications The IBM Ethernet Switch B48Y supports the following when running IronWare R07.2.x and later (code download and documentation can be found on the IBM Systems support site in the Related links section): Form-factor One RU; 44.0 cm (17.3 in.) width x 4.4 cm (1.7 in.) height x 43.5 cm (17.2 in.) depth Rack-mount into 19”... - Page 10 Root Guard prevents rogue devices from hijacking STP root. BPDU Guard prevents rogue devices from participating in STP. DHCP Assist helps DHCP servers respond correctly to devices in a different subnet than the DHCP server. IBM Ethernet Switch B48Y...
- Page 11 Industry-standard CLI via Telnet and SSHv2 Easy-to-use web-based GUI for device management over HTTP/HTTPS Fault management integration with IBM Systems Director v6.2 Network-wide management of all IBM b-type system networking switches using Brocade IronView Network Manager (INM) Simple Network Management Protocol (SNMP) v1/v2/v3...
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Page 12: Connectivity Options
Connectivity options The B48Y supports a wide variety of industry IEEE and RFC standards and should interoperate with any network device that supports industry standard Ethernet connectivity. This includes servers, other Ethernet switches, iSCSI Storage Area Network (SAN) arrays, Network-Attached Storage (NAS) arrays, and other network devices. - Page 13 3722-S51, 3722-S52: Cisco Nexus 5000 series Connectivity to IBM System servers The B48Y can be deployed as a Top of Rack (ToR) access switch to provide connectivity to servers within a rack. This includes servers from IBM System x, System p, and System i.
- Page 14 Gbps Ethernet connectivity is not standard in most System x servers, and a 10 GbE NIC or 10 GbE CNA must be installed. Only the IBM System x3850/3950 X5 series (except for the ARx model) come standard with a customized Emulex Virtual Fabric Adapter. Table 7 lists the 10 GbE adapters that are available for IBM System x servers.
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Page 15: Popular Configurations
Table 8 lists the various IBM BladeCenter Ethernet Switch Modules that can be used to connect to the B48Y. Table 8. IBM BladeCenter Ethernet Switch Modules (ESM) BladeCenter Part # Ext. 1 Ext. 10 BC H BC HT BC E... - Page 16 Top of Rack (ToR) switch. The B48Y is ideal for deployment as an all-purpose Top of Rack switch in demanding network environments due to its high performance, resilient hardware characteristics, easy manageability, and comprehensive network features support.
- Page 17 The B48Y can also be used to connect to NAS arrays for scale-out file sharing and also to a separate iSCSI SAN for dedicated storage access as bandwidth and security needs require.
- Page 18 Network device connections Figure 10 shows an example of the type of options that can be used to connect devices to the IBM Ethernet Switch B48Y. Figure 10. IBM Ethernet Switch B48Y device connections IBM Ethernet Switch B48Y...
- Page 19 Connections to 10 GbE ports require Varies optional 4-port 10 GbE Interface Module (81Y1455). Use a single Direct Attach Cable (TwinAx) to connect to B48Y, available in 1, 3, or 5 meters. (See Table 4.) NAS or iSCSI storage array. Varies Varies Cisco Catalyst 3012 Ethernet Switch Module.
- Page 20 Interoperating in existing network environments The IBM Ethernet Switch B48Y interoperates seamlessly in existing network environments utilizing standards-based protocols. Figure 11 shows the B48Y used as an access and aggregation switch. Figure 11. IBM Ethernet Switch B48Y connecting to the network infrastructure...
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Page 21: Power Supplies And Fans
CLI so network administrators can utilize their existing skill sets. Power supplies and fans The IBM Ethernet Switch B48Y comes with one 210 W AC power supply and supports a second power supply (81Y1451) for 1+1 redundancy. The power supplies are hot-swappable, auto-sensing, auto-switching, and load sharing, with a universal input (90 VAC to 264 VAC). - Page 22 The cooling characteristics of the system allow it to be deployed in server racks featuring hot-cold aisle containment without the need of special baffling. Figure 13. IBM Ethernet Switch B48Y air flow (back to front) IBM Ethernet Switch B48Y...
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Page 23: Installation
The IBM Ethernet Switch B48Y comes with two rack mount brackets affixed to each side for installation into an EIA-310D compliant rack. Screws for mounting the B48Y to the rack are not included with the switch. Allow at least 3 inches of space at the front, back, and sides of the device for proper cabling and cooling. -
Page 24: Related Links
300 m 2.6 dBm Related links See the following websites for related information: IBM System x network options support site for model-type 0563 (code download and documentation) http://www.ibm.com/support/entry/portal/Overview/Hardware/Systems/System_x/Network_Solutions/ 0563 IBM b-type Data Center Networking: Design and Best Practices IBM Redbooks publication... - Page 25 Web sites. The materials at those Web sites are not part of the materials for this IBM product and use of those Web sites is at your own risk.IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you.
- Page 26 (® or ™), indicating US registered or common law trademarks owned by IBM at the time this information was published. Such trademarks may also be registered or common law trademarks in other countries. A current list of IBM trademarks is available on the Web at http://www.ibm.com/legal/copytrade.shtml...