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IBM System Networking RackSwitch G8264/G8264T

IBM Redbooks Product Guide

IBM® System Networking now offers the IBM RackSwitch G8264 (leveraging SFP+ technology) and the IBM RackSwitch G8264T (leveraging 10Gbase-T technology). Both are 10 and 40 Gigabit Ethernet (GbE) switches specifically designed for the data center, and are ideal for today's big data, cloud and optimized workload solutions. They are enterprise class Layer 2 and layer 3 full featured switches that deliver line-rate, high-bandwidth switching, filtering, and traffic queuing without delaying data. Large data-center grade buffers help keep traffic moving, while the redundant power and fans along with numerous high availability features help provide high availability for business sensitive traffic. The RackSwitch G8264, shown in Figure 1, is ideal for latency sensitive applications such as high performance computing clusters and financial applications. In addition to the 10GbE and 40GbE connections, the G8264 also has the capability for legacy 1GbE connections. The G8264 supports the newest protocols including Data Center Bridging/Converged Enhanced Ethernet (DCB/CEE) for support of Fibre Channel over Ethernet (FCoE) in addition to ISCSI and NAS. The G8264 is also designed to support IBM Virtual Fabric, which helps clients significantly reduce cost and complexity related to I/O requirements of many virtualization deployments. Virtual Fabric helps you reduce the number of multiple I/O adapters to a single dual-port 10 G adapter, and also to reduce the number of cables and required upstream switch ports. Virtual Fabric allows you to carve a dual-port 10 G server adapter into 8 virtual NICs (vNICs) and to create dedicated virtual pipes between the adapter and the switch for optimal performance, higher availability, and improved security. Using Virtual Fabric IT can make dynamic changes and allocate bandwidth per vNIC, making it possible to adjust over time without downtime.

Figure 1. IBM System Networking RackSwitch G8264 The G8264T (Figure 2) is part of a comprehensive 10GBase-T IBM solution that includes servers, storage and networking and that provides improved virtualization, better management, and smarter connectivity options for next generation data centers. Flexible connectivity across distances up to 100m at a low cost makes the G8264T an optimal choice for connecting high-speed server and storage devices.

Figure 2. IBM System Networking RackSwitch G8264T

Did you know

Did you know that:

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The RackSwitch G8264 is designed to support a number of types of configurations: 1 Gb, 10 Gb, and 40 Gb, Virtual NIC, Converged Enhanced Ethernet (CEE/DCB), and iSCSI. The RackSwitch G8264 with SFP+ technology is the ideal solution for clients looking for low latency and low power consumption. The IBM RackSwitch G8264 supports stacking for up to eight switches using a single switch image and configuration file that shares one IP address and one management interface. The RackSwitch G8264 is designed to support Data Center Bridging (DCB), the IEEE's group of protocols that provide lossless Ethernet and allow clients to reduce the costs of implementing either:

NAS or iSCSI convergence and priority-based flow control FCoE by aggregating switch ports before connecting to more costly upstream Fibre Channel gateway devices.

IBM is a leader in network virtualization, offering the on-switch IBM VMready® software that reduces the complexity of managing virtual machines (VMs) in the network. The G8264 plays a vital role with IBM Virtual Fabric which reduces costs and complexity in environments where four or more NICs are needed per server. A perfect example is virtualization, where clients often need as many as eight NICs per server. The G8264T offers 48 10Gbase-T connections allowing for cost effective CAT6/6A cables of distances up to 100m.

Part number information

Table 1 lists the part numbers for ordering IBM System x® and IBM Power SystemsTM modules and additional options. Products are ordered through IBM Storage and Power ordering systems. Note: Transceivers are not included in the purchase of the switch and all transceivers require using the appropriate cables.

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Table 1. IBM part numbers and feature codes for ordering (part 1)

Description IBM System Networking RackSwitch G8264 (Rear-to-Front) IBM System Networking RackSwitch G8264 (Front-to-Rear) IBM System Networking RackSwitch G8264T (Rear-to-Front) IBM System Networking RackSwitch G8264T (Front-to-Rear) 1 Gb options (supported only on G 8264) IBM SFP RJ45 Transceiver IBM SFP SX Transceiver IBM SFP LX Transceiver 0.6 m Blue Cat5e Cable 1.5 m Blue Cat5e Cable 3 m Blue Cat5e Cable 10 m Blue Cat5e Cable 25 m Blue Cat5e Cable 81Y1618 81Y1622 90Y9424 40K5679 40K8785 40K5581 40K8927 40K8930 EB29 EB2A ECB8 ECB0 ECB2 1111 1112 1113 System x part number 7309G64 730964F 7309CR9 7309CF9 Power Systems MTM/FC 1455-64C

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Table 1. IBM part numbers and feature codes for ordering (part 2)

Description 10 Gb options (supported only on G8264) IBM SFP+ SR Transceiver IBM SFP+ LR Transceiver IBM SFP+ ER Transceiver

IBM System x part number

Power Systems MTM /FC

46C3447 90Y9412 90Y9415 88Y6851 88Y6854 88Y6857 90Y9427 90Y9430 90Y9433 95Y0323 95Y0326 95Y0329

EB28 ECB9 ECBA ECBC ECBD ECBE ECB4 ECB5 ECB6

1m LC-LC Fiber Cable (networking) - Optical 5m LC-LC Fiber Cable (networking) - Optical 25m LC-LC Fiber Cable (networking) - Optical

1 m IBM Passive DAC SFP+ Cable 3 m IBM Passive DAC SFP+ Cable 5 m IBM Passive DAC SFP+ Cable 1 m IBM Active DAC SFP+ Cable 3 m IBM Active DAC SFP+ Cable 5 m IBM Active DAC SFP+ Cable 1m 10GbE Cable SFP+ Active Twinax 3m 10GbE Cable SFP+ Active Twinax 5m 10GbE Cable SFP+ Active Twinax

ENO1 EN02

EN03

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Table 1. IBM part numbers and feature codes for ordering (part 3)

40 Gb options IBM QSFP+ SR Transceiver

(Supported on G8264 & G8264T) 49Y7884

(Supported on G8264 only) EB27 EB2J EC2K EB24 EB25 EB26 EB2B EB2H ECBN ECBP

10 m IBM QSFP+ MTP Optical 90Y3519 Cable 30 m IBM QSPF+ MTP Optical 90Y3521 Cable 49Y7886 49Y7887 49Y7888 49Y7890 49Y7891 00D5810 00D4813

1 m IBM QSFP+ DAC Break Out Cable 3 m IBM QSFP+ DAC Break Out Cable 5 m IBM QSFP+ DAC Break Out Cable 1 m IBM QSFP+-to-QSFP+ Cable 3 m IBM QSFP+-to-QSFP+ Cable 5 m IBM QSFP+-to-QSFP+ Cable 7 m IBM QSFP+-to-QSFP+ Cable

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Table 1. IBM part numbers and feature codes for ordering (part 4)

Miscellaneous options IBM 19" Flexible 4 Post Rail Kit System x part number 49Y4284 AAS feature code EU06

Front-to-rear, hot-swappable power 49Y7938 supply spare (G8264 only) Rear-to-front, not swappable power 49Y7937 supply spare (G8264 only) Front-to-rear, hot-swappable 750WCFF power supply spare (G8264T only) Rear-to-front, hot-swappable 750WCFF power supply spare (G8264T only) Front-to-rear, hot-swappable fan assembly spare (both G8264 and G8264T) Rear-to-front, hot-swappable fan assembly spare (both G8264 and G8264T) 00D5857

00D5858

49Y7939

88Y6026

With the flexibility of the IBM switch, you can take advantage of the following technologies required for multiple environments. For the options and their supported distances, see Figure 3.

For 1 Gb links, on the G8264 specifically, you can use SFP transceivers plus LC-to-LC fiber cables. For 10 Gb, you can use the following items:

· ·

10GBase-T allows CAT6 or CAT6A cables for cost effective long distances. SFP+ transceivers (SR, LR, or ER) plus LC-to-LC fiber cables for longer distances.

For 40 Gb links, you can use QSFP to QSFP cables up to 7m, or QSFP transceivers and MTP cables for longer distances.

Figure 3. Options and their supported distances

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The module part numbers include the following items:

One IBM System Networking RackSwitch G8264/ G8264T Generic Rail Mount Kit (2-post) IBM serial cable

Power cords, listed in Table 2, are shipped separately at an additional charge. Line cords, descriptions, and feature codes are listed in Table 3.

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Table 2. Power cords and descriptions: IBM System x

Power cord 39Y7917 39Y7918 39Y7919 39Y7920 39Y7922 39Y7923 39Y7924 39Y7925 39Y7926 39Y7927 39Y7928 39Y7929 39Y7930 39Y7931 Description Power Cord Europe AC plug 10A/250 V; OPT Power Cord Europe (Denmark) AC plug 10A/250 V; OPT Power Cord Europe (Switzerland) AC plug 10A/250 V; OPT Power Cord Israel AC plug 10A/250 V; OPT Power Cord South Africa AC plug 10A/250 V; OPT Power Cord UK AC plug 13A/250 V; OPT Power Cord Australia AC plug 10A/250 V; OPT Power Cord Korea AC plug 10A/250 V; OPT Power Cord Japan AC plug 10A/125 V; OPT Power Cord India AC plug 10A/250 V; OPT Power Cord China AC plug 16A/250 V; OPT Power Cord Brazil AC plug 16A/250 V; OPT Power Cord Uruguay/Argentina AC plug 16A/250 V; OPT Power Cord US/Canada AC plug 10A/125 V; OPT

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Table 3. Line cords description and IBM Power System and Storage feature codes

Description Power Cord 4.3m (14-ft), Drawer to Wall/IBM PDU (250V/10A) Power Cord 4.3m (14-ft), Drawer to Wall/OEM PDU (250V/15A) U. S. Power Cord 1.8m (6-ft), Drawer to Wall (125V/15A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU (125V/15A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU (250V/16A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU (250V/10A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/13A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/16A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/10A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/16A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (125V/15A or 250V/10A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/10A) Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/10A) Power Cord 4.3m (14-ft), Drawer to Wall/OEM PDU (125V/15A) Power Cord 2.8m (9.2-ft), Drawer to Wall/IBM PDU, (250V/ 10A) Power Cord 2.7m (9-ft), Dawer to Wall/OEM PDU, (250V/10A) Feature code 6458 6469 6470 6471 6472 6473 6474 6475 6476 6477 6488 6493 6494 6660 6665 6680

Benefits

The IBM System Networking RackSwitch G8264 offers the following benefits:

High performance: The 10 Gb/40 Gb switch provides the best combination of low latency, non-blocking line-rate switching, and ease of management. It has a throughput of 1.28 Tbps. Lower power and better cooling: The IBM RackSwitch G8264 uses as little as 275 W of power, which is a fraction of the power consumption of most competitive offerings. Unlike side-cooled switches, which can cause heat recirculation and reliability concerns, the G8264's front-to-rear or rear-to-front cooling design reduces data center air conditioning costs by having airflow match the servers in the rack. In addition, variable speed fans help to automatically reduce power consumption. Stacking: With the G8264 a single switch image and configuration file can be used for up to eight switches, sharing only one IP address and one management interface. Virtual Fabric: Can help customers address I/O requirements for multiple NICs while reducing cost and complexity. Virtual Fabric for IBM allows you to carve a physical NIC into multiple virtual NICs (between 2 - 8 vNIC) and to create a virtual pipe between the adapter and the switch for improved performance, availability, and security. VM-Aware Networking: VMreadyTM software on the switch simplifies configuration and improves security in virtualized environments. VMready automatically detects virtual machine movement between physical servers and instantly reconfigures each VM's network policies across VLANs to keep the network up and running without interrupting traffic or impacting performance. VMready works with all leading VM providers, such as VMware, Citrix, Xen, IBM PowerVM® and Microsoft. Layer 3 functionality: The G8264 includes Layer 3 functionality, which provides security and performance benefits, as inter-VLAN traffic stays within the switch. This switch also provides the full range of Layer 3 protocols from static routes for technologies such as Open Shortest Path

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First (OSPF) and Border Gateway Protocol (BGP) for enterprise customers.

Seamless interoperability: IBM switches perform seamlessly with other vendors' upstream switches. Fault tolerance: These IBM switches learn alternate routes automatically and perform faster convergence in the unlikely case of a link, switch, or power failure. The switch uses proven technologies like L2 trunk failover, advanced VLAN-based failover, VRRP, and HotLink. Multicast: Supports IGMP Snooping v1, v2, and v3 with 2 K IGMP groups, as well as Protocol Independent Multicast such as PIM Sparse Mode or PIM Dense Mode. Converged fabric: The IBM switch is designed to support CEE and connectivity to FCoE gateways. CEE helps enable clients to combine storage, messaging traffic, VoIP, video, and other data on a common data center Ethernet infrastructure. FCoE helps enable highly efficient block storage over Ethernet for consolidating server network connectivity. As a result, clients can deploy a single server interface for multiple data types, which can simplify both deployment and management of server network connectivity, while maintaining the high availability and robustness required for storage transactions.

The IBM System Networking RackSwitch G8264T offers the following benefits:

Low cost cabling: The ability to leverage CAT6 or CAT6A cabling can save clients thousands of dollars for connections anywhere from a couple feet to 100 meters compared to SFP+ models. High performance: For those requiring the use of 10GBase-T the 10 Gb/40 Gb capabilities provides the best combination of non-blocking line-rate switching with throughput of 1.2 Tbps. Lower power and better cooling: The IBM RackSwitch G8264T's typical power consumption is 385 W, which is a fraction of the power consumption of most competitive 10GBase-T offerings. Unlike side-cooled switches, which can cause heat recirculation and reliability concerns, the G8264T's front-to-rear or rear-to-front cooling design reduces data center air conditioning costs by having airflow match the servers in the rack. In addition, variable speed fans assist in automatically reducing power consumption. VM-Aware Networking: VMreadyTM software on the switch simplifies configuration and improves security in virtualized environments. VMready automatically detects virtual machine movement between physical servers and instantly reconfigures each VM's network policies across VLANs to keep the network up and running without interrupting traffic or impacting performance. VMready works with all leading VM providers, such as VMware, Citrix, Xen, and Microsoft. Layer 3 functionality: The IBM switch includes Layer 3 functionality, which provides security and performance benefits, as inter-VLAN traffic stays within the switch. This switch also provides the full range of Layer 3 protocols from static routes for technologies such as Open Shortest Path First (OSPF) and Border Gateway Protocol (BGP) for enterprise customers. Seamless interoperability: IBM switches perform seamlessly with upstream switches from other vendors. Fault tolerance: These IBM switches learn alternate routes automatically and perform faster convergence in the unlikely case of a link, switch, or power failure. The switch uses proven technologies like L2 trunk failover, advanced VLAN-based failover, VRRP, and HotLinkTM. Multicast: Supports IGMP Snooping v1, v2, and v3 with 2 K IGMP groups, as well as Protocol Independent Multicast such as PIM Sparse Mode or PIM Dense Mode. SeeTable 4 to select the appropriate switch.

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Table 4. RackSwitch G8264 and RackSwitch G8264T features

Port types Latency Stacking Typical power Copper cable length Total distance TCO IBM RackSwitch G 8264 Based on SFP+ Lower latency - 880 nanosecond Yes Lower power - 275 watts Up to 5m Up to 40KM with Transceiver Less than other SFP+ IBM RackSwitch G 8264T Based on 10GBase-T 3.2 microseconds No Competitive vs. other 10GBase-T - 385W Up to 100m Limited to 100m Lower TCO ­ for 100m and less (based on adapter, cables and switch)

Warranty information

The IBM RackSwitch includes an IBM standard 3-year hardware and software warranty. IBM also reserves the right to provide new features as part of future software releases. Software Upgrade Entitlement is based on the switch's warranty or post warranty extension and service contracts.

Features and specifications

Performance, hardware, and software features are described in the following lists. Performance featues

100% Line rate performance 1280 Gbps non-blocking switching throughput (full duplex) Latency: G8264 (880 nanoseconds) G8264T (3.2 microseconds) 960 Mpps

Hardware features The hardware features are as follows: · Models · IBM System Networking RackSwitch G8264/G8264T Rear-to-Front Versions For ports located in the rear of the rack matching System x and IBM BladeCenter® designs · IBM System Networking RackSwitch G8264/G8264T Front-to-Rear Versions For ports located in the front of the rack matching airflow of IBM iDataPlex® · Interface options · Forty-eight ports (10 GbE) ­ G8264 (SFP+) and G8264T (10GBase-T) · Four QSFP+ ports (40 GbE) · One 10/100/1000 Ethernet RJ45 port for out-of-band management · One USB port for mass storage device connection · One mini-USB Console port for serial access · Server-like port orientations, enabling short and simple cabling · Dimensions: · G8264: 17.3 inches wide, 19 inches deep, 1 RU high · G8264T: 17.3 inches wide, 20.3 inches deep, 1 RU high · Weight: · G8264: 9.98 kg (22 lb) · G8264T: 11.1 kg (24.5lb) · Rack Installation Kit · Generic Rack Mount Kit (2-post) · Can be mounted vertically or horizontally

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LEDs · System LEDs to indicate link status, fan, power, and stacking Airflow · Front-to-rear or rear-to-front cooling · Redundant variable hot-swap speed fans for reduced power draw

Figure 4 shows the rear view of the IBM RackSwitch G8264.

Figure 4. Rear view of IBM RackSwitch G8264

Power Dual hot swap power modules, 50 - 60Hz, 100 - 240 VAC auto-switching per module Typical power consumption of 275 Watts (G8264) and 385 Watts (G8264T) Environmental specifications Temperature: Ambient operating: 0 - 40 ºC Relative humidity: Non-condensing, operating 10 - 90% Altitude: Operating 1,800 m (6,000 feet) Typical heat dissipation: 1127 BTU/hour ( G8264) and 1330 BTU/hour (G8264T) Mean time between failures (MTBF): G8264: 165,990 hours at 40 °C

Software features The software features, as of 7.4, are as follows:

Security RADIUS TACACS+ SCP Wire Speed Filtering: Allow and Deny SSH v1, v2 HTTPS Secure BBI Secure interface login and password MAC address move notification Shift B Boot menu (Password Recovery/ Factory Default) VLANs Port-based VLANs 4096 VLAN ids supported 2048 Active VLANs (802.1Q) 802.1x with Guest VLAN Private VLAN Edge

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Stacking FCoE/Lossless Ethernet 802.1 Data Center Bridging Priority Based Flow Control (PFC) Enhanced Transmission Selection (ETS) Data Center Bridge Exchange protocol (DCBX) FIP Snooping Fibre Channel over Ethernet (G8264 only) Converged Enhanced Ethernet Trunking LACP Static Trunks (EtherChannel) Configurable Trunk Hash algorithm Spanning Tree Multiple Spanning Tree (802.1 s) Rapid Spanning Tree (802.1 w) PVRST+ Fast Uplink Convergence BPDU guard Quality of Service QoS 802.1p (priority queues) DSCP remarking Metering Routing protocols RIP v1/v2 OSPF BGP High availability Layer 2 failover HotLinksTM Virtual Router Redundancy support (VRRP) Multicast IGMP Snooping v1, v2, and v3 with 2 K IGMP groups Protocol Independent Multicast (PIM Sparse Mode/Dense Mode) Monitoring Port mirroring ACL-based mirroring sFlow Version 5 Virtualization VMready with VI API support vNIC MIB support for SNMP (G8264 only) Clients IBM System Networking Element Manager ISCLI (Cisco-like) Scriptable CLI Browser-based client or Telnet Standard protocols IPv4, IPv6 SNMP v1, v2c, and v3 RMON Secondary NTP Support DHCP Client DHCP Relay LLDP 128 K MAC Table 9 K Jumbo Frames 802.3X Flow Control Upgrades Upgrade firmware via serial or TFTP Dual software images

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Popular configurations

This section describes common configurations for the G8264. Rack-optimized server aggregation 10-GbE attached rack servers The RackSwitch G8264 is an ideal networking device for port aggregation, allowing the consolidation of one to three racks full of servers before connecting to an upstream switch.

High-concentration of rack-optimized servers, for example:

IBM System x 1U servers with a 10 Gb adapter installed

Easily supports 40 servers per rack. Easily supports up to 48 servers or more, depending on uplink bandwidth required across two racks, including storage or UPS. Most clients will have up to twenty 2U servers per rack. With the G8264 switch being able to support up to 64 SFP+ ports, a client could easily leverage a switch across three racks of severs, and more likely two for redundancy. IBM BladeCenter 1/10 Gb Uplink Ethernet Switch Module With only two 10 Gb SFP+ ports per chassis, clients with larger data centers could easily support 24 chassis or more per RackSwitch G8264.

IBM System x 2U servers with a 10 Gb adapter installed

IBM BladeCenter using any of the following modules in the chassis:

IBM BladeCenter Virtual Fabric 10 Gb Switch Module With support of up to ten 10 Gb SFP+ ports per switch, clients can easily support 4 - 6 chassis per RackSwitch, and if they are not concerned about oversubscription, they can support up to 24 or more per RackSwitch G8264.

10 Gb Ethernet Pass-Thru Module for IBM BladeCenter For many clients looking to use a pass-through module, upstream costs could be very expensive, especially if you are connecting to a core switch and you are looking at up to fourteen 10 Gb ports per chassis. The G8264 provides a much more cost-effective alternative and can support up to four fully populated IBM BladeCenter H chassis per RackSwitch. This is also a much better alternative for larger BladeCenter H environments compared to a smaller 24-port switch.

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Low-profile, high-performance, 48/64-port 10-GbE switch needed to perform aggregation function per rack. Figure 5 shows port aggregation, and Table 5 lists the features and benefits.

Figure 5. Port aggregation Table 5. Features and benefits

Features Line-rate, non-blocking, all 64-ports Deterministically low latency Support for IGMP Snooping and L3 forwarding Standards-based Layer 2/3 protocols; industry standard CLI Benefits Supports massive compute and virtualization workloads Faster application response times Enables high-bandwidth, low-latency multicast applications Interoperates with existing network; no learning curve

Rack-optimized server aggregation logical design Design Goal: IBM RackSwitch G8264 (10 GbE) switch at Distribution Layer and IBM RackSwitch G8000/G8052 (1 GbE) at Edge/Access. The G8264 is also ideal at the distribution layer when you are looking to aggregate connections for access layer switches like the G8000 or G8052 which support forty-eight 1 Gb ports to the servers and four 10 Gb uplinks. In either scenario the G8264 provides exceptional value by being able to support:

Up to 12 G8000/G8052 switches (576 servers) when using the four 10 Gb uplinks per G8000/G8052, while still having the four 40 Gb uplinks from the G8264 to the core Up to 16 G8000/G8052 switches (768 servers) when using the four 10 Gb uplinks per G8000/G8052 and using 10 Gb SFP+ break-out cables in the four 40 Gb ports with no uplinks to a core

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Additional details:

Logical Configuration: Configure G8000/G8052 for Layer 2 and apply static routes for L3 forwarding Full Layer 2/3 Feature Set: STP, MSTP, RSTP, PVRST+; RIP v1/2, static routes, OSPF Security: 802.1X; RADIUS/TACACS+; Wire Speed ACLs, SSH v1, v2; HTTPS Secure BBI QoS: Up to eight queues per port, IEEE 802.1p and DiffServ prioritization

Figure 6 shows aggregation option 2.

Figure 6. Aggregation option 2 2560 node gigabit network : Using next-generation 64 port 1U switches The following high-level configuration is an example of how a configuration might look if the G8052 is used as leaf switches and the G8264 is used as a spine switch.

All active links Traffic load balanced across all links using Layer 3 ECMP 64 RackSwitch G8052 Leaf Switches for 2560 non-blocking 1 GbE ports 48x 10/100/1000 server-facing ports each 4x 10 GBASE-SR fiber uplinks each Four RackSwitch G8264 spine switches for non-blocking core

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Figure 7 shows the 2560 node.

Figure 7. The 2560 node Virtual Fabric configuration with IBM System x servers using the Emulex Virtual Fabric Adapter The following example is how an IBM Virtual Fabric implementation might look:

IBM Virtual Fabric for IBM System x is built using industry standards and is the ideal solution for customers that require more than two NICs per server. Over the past couple of years many clients have seen their I/O requirements per server increase anywhere from 4 to 6 to 8 or even more NICs per server, especially with the adoption of virtualization. What IBM Virtual Fabric does is provide clients with the ability to leverage a virtual NIC approach leveraging 10 Gb Ethernet technology to help reduce cost and complexity while also achieving better performance and more flexibility. It provides the following benefits:

Reduced costs: (Acquisition and operating) by using fewer adapters, cables, and upstream switch ports. Reduced complexity: Fewer items to manage, based on industry standards, making management easier with the addition of high availability and better security. Better performance: A significant amount more I/O bandwidth per server and lower latency than traditional 1 Gb Ethernet. Flexibility: The ability to carve up a dual-port 10 Gb adapter into 4 - 8 virtual NICs and create virtual pipes between the adapter and switch for higher availability and security. Not only can customers dynamically allocate I/O bandwidth to each virtual NIC, Virtual Fabric also provides the ability to change those allocations as needed. For example, a customer might have one configuration for workload during the day and another during the evenings. Virtual Fabric has the ability to make those changes on the fly without downtime.

IBM Virtual Fabric is designed in partnership with Emulex. This solution requires the following components:

Emulex 10 Gb Virtual Fabric Adapter for IBM System x. For more details, use the following link: http://www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/tips0762.html?Open IBM System Networking RackSwitch G8264

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Figure 8 shows the vNIC.

Figure 8. vNIC IP Storage over 10 GbE: Changing the economics of storage G8264 benefits for IP Storage applications are as follows:

Lossless Ethernet Fabric Low latency ideal for HPC clusters, cloud, and financial applications Line-rate, high-bandwidth performance Low-power consumption with fewer components Low-cost, pay-as-you-grow 10 Gb/40 Gb storage network

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Figure 9 shows the iSCSI.

Figure 9. iSCSI Rack-optimized server aggregation for rack servers using 10GBase-T The RackSwitch G8264T is an ideal networking device for port aggregation, allowing the consolidation of one to three racks full of IBM System x type servers before connecting to an upstream switch. The IBM System x servers could leverage a 10GBase-T adapter installed like the Broadcom NetXtreme II Dual Port 10GBase-T Adapter for IBM System x ( http://www.redbooks.ibm.com/abstracts/tips0846.html?Open) and then CAT6/6A cables can be used to connect upstream to the G8264T. The RackSwitch G8316 would be an attractive offering for 40Gb upstream connects from the G8264T helping clients create a flat two layer networking implementation as shown in Figure 10.

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Figure 10. G8316 Aggregation for multiple G8264T switches iSCSI Storage Implementation If you need to leverage iSCSI or other storage offerings based on 10GBase-T, for example, the IBM System Storage® DS3512, use the following link: http://public.dhe.ibm.com/common/ssi/ecm/en/tsd03097usen/TSD03097USEN.PDF) The IBM RackSwitch G8264T is a good solution for connecting IBM servers and IBM System Storage DS3500, as shown in Figure 11.

Figure 11. The G8264T connected to DS3500

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Related publications

For more information, see the following IBM System Networking RackSwitch G8264 product publications:

Application Guide http://www.ibm.com/support/docview.wss?uid=isg3T7000578 Industry-Standard CLI Reference http://www.ibm.com/support/docview.wss?uid=isg3T7000580 Browser-Based Interface (BBI) Quick Guide http://www.ibm.com/support/docview.wss?uid=isg3T7000296 Menu-based CLI Command Reference http://www.ibm.com/support/docview.wss?uid=isg3T7000579 IBM US Announcement Letter:

G8264: http://ibm.biz/BdxHAi G8264T: http://ibm.biz/BdxHAY

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Notices

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This document was created or updated on October 15, 2012. Send us your comments in one of the following ways: Use the online Contact us review form found at: ibm.com/redbooks Send your comments in an e-mail to: [email protected] Mail your comments to: IBM Corporation, International Technical Support Organization Dept. HYTD Mail Station P099 2455 South Road Poughkeepsie, NY 12601-5400 U.S.A.

This document is available online at http://www.ibm.com/redbooks/abstracts/tips0815.html .

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