Lenovo RackSwitch G8052 Manuale utente

Lenovo RackSwitch G8052

Product Guide

The Lenovo RackSwitch™ G8052 (as shown in the following figure) is a top-of-rack data center switch that

delivers unmatched line-rate Layer 2/3 performance at an attractive price. It has 48x 10/100/1000BASE-T

RJ-45 ports and four 10 Gigabit Ethernet SFP+ ports (it also supports 1 GbE SFP transceivers), and

includes hot-swap redundant power supplies and fans as standard, which minimizes your configuration

requirements. Unlike most rack equipment that cools from side-to-side, the G8052 has rear-to-front or

front-to-rear airflow that matches server airflow.

Figure 1. Lenovo RackSwitch G8052

Did you know?

The RackSwitch G8052 is designed with line-rate throughput and low latency of less than 2 microseconds.

The RackSwitch G8052 includes redundant and hot-swappable power supplies and fans.

The RackSwitch G8052 is designed specifically for the data center environment with server-matching

airflow, high-availability hardware and software features, rich Layer 2/3 functionality, and ease of

management.

The RackSwitch G8052 is SDN ready with its OpenFlow support. With OpenFlow, you can easily create

user-controlled virtual networks, optimize performance dynamically, and minimize complexity when it is

used with an OpenFlow controller.

The RackSwitch G8052 is also cloud ready with its VMready® switch-resident software that helps reduce

the complexity of configuring and managing virtual machines throughout the network, making it VM-aware.

The RackSwitch G8052 supports stacking for up to eight switches by using a single switch image and

configuration file that shares one IP address and one management interface for simplified management.

Networking Operating System software features deliver seamless, standards-based integration into

upstream switches.

Lenovo RackSwitch G8052 1

Key features

The RackSwitch G8052 switch is considered particularly suited for the following customers:

Customers who want to use GbE in their infrastructure (servers and networking)

Customers who are implementing a virtualized environment and require multiple GbE ports

Customers who require investment protection for 10 GbE ports

Customers who want to reduce total cost of ownership (TCO) and improve performance while

maintaining high levels of availability and security

Customers who want to avoid or minimize oversubscription, which can result in congestion and

loss of performance

Customers wanting to simplify management by stacking up to eight switches and managing them

as a single entity

Customers who want to implement a converged infrastructure with NAS or iSCSI

The switch offers the following key features and benefits:

High performance

The RackSwitch G8052 provides up to 176 Gbps throughput and supports four SFP+ 10 Gb uplink

ports for a low oversubscription ratio and a low latency of 1.8 microseconds.

Lower power and better cooling

The RackSwitch G8052 typically uses only 130 W of power, a fraction of the power consumption of

most competitive offerings. The G8052’s rear-to-front or front-to-rear cooling design reduces data

center air conditioning costs by matching airflow to the server’s configuration in the rack. Variable

speed fans assist in automatically reducing power usage.

VM-aware network virtualization

VMready software on the switch simplifies configuration and improves security in virtualized

environments. VMready automatically detects VM 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 affecting performance. VMready works with all leading

hypervisors, such as VMware, Citrix Xen, Red Hat KVM, and Microsoft Hyper-V.

Layer 3 functionality

The RackSwitch G8052 includes Layer 3 functionality, which provides security and performance

benefits and the full range of Layer 3 static and dynamic routing protocols, including Open Shortest

Path First (OSPF) and Border Gateway Protocol (BGP) for enterprise customers at no extra cost.

Stacking support

Supports up to eight switches that use a single switch image and configuration file that shares one

IP address and one management interface for simplified management.

Fault tolerance

These switches learn alternative routes automatically and perform faster convergence if there is a

link, switch, or power failure. The switch uses proven technologies, such as L2 trunk failover,

advanced VLAN-based failover, VRRP, Hot Links, IGMP V3 snooping, and OSPF.

OpenFlow enabled

The RackSwitch G8052 offers benefits of OpenFlow. OpenFlow is the open application

programming interface (API) that enables the network administrator to easily configure and manage

virtual networks that control traffic on a “per-flow” basis. It creates multiple independent virtual

networks and related policies without dealing with the complexities of the underlying physical

network and protocols. The G8052 can be used with any industry compliant OpenFlow controller.

Seamless interoperability

RackSwitch switches interoperate seamlessly with other vendors' upstream switches.

Lenovo RackSwitch G8052 2

Transparent networking capability

With a simple configuration change to Easy Connect Mode, the RackSwitch G8052 becomes a

transparent network device that is invisible to the core and eliminates network administration

concerns of Spanning Tree Protocol configuration and interoperability and VLAN assignments and

avoids any possible loops. By emulating a host NIC to the data center core, it accelerates the

provisioning of VMs by eliminating the need to configure the typical access switch parameters.

Components and connectors

The front panel of the RackSwitch G8052 is shown in the following figure.

Figure 2. Front panel of the RackSwitch G8052

The front panel of the G8052 features the following components:

LEDs that display the status of the switch and the network.

One Mini-USB RS-232 console port that provides another means to configure the switch module.

One USB port for mass storage devices.

A total of 48 1000BASE-T Ethernet ports for 10/100/1000 Mbps connections.

Four SFP+ ports to attach SFP/SFP+ transceivers for 1 Gb or 10 Gb connections or DAC cables for

10 Gb Ethernet connections.

The rear panel of the RackSwitch G8052 is shown in the following figure.

Figure 3. Rear panel of the RackSwitch G8052

Lenovo RackSwitch G8052 3

The rear panel of the G8052 features the following components:

Two redundant hot-swap AC power supplies (IEC 320-C14 power connector)

Up to four hot-swap fan assemblies (three fans come standard with the switch and provide N+1

redundancy)

System specifications

The following table lists the RackSwitch G8052 system specifications.

Table 1. System specifications

Component Specification

Form factor 1U rack mount

Ports 48x Gigabit Ethernet (GbE) RJ-45 fixed ports

4x SFP/SFP+ ports

SFP/SFP+ media

types

10 Gb Ethernet SFP+:

10 GbE short-range (SR) SFP+ transceivers

1/10 GbE SX/SR SFP+ transceivers

10 GbE long-range (LR) SFP+ transceivers

10 GbE extended-range (ER) SFP+ transceivers

10 GbE RJ-45 SFP+ transceivers

10 GbE SFP+ active optical cables (AOCs)

10 GbE SFP+ direct attach copper (DAC) cables

1 Gb Ethernet SFP:

1 GbE short-wavelength (SX) SFP transceivers

1 GbE long-wavelength (LX) SFP transceivers

1 GbE RJ-45 SFP transceivers

Port speeds 1 GbE RJ-45 fixed ports: 10/100/1000 Mbps autosensing

10 GbE SFP+ transceivers, DAC cables and AOCs: 10 Gbps

1 GbE SFP transceivers: 1 Gbps

Switching method Cut-through.

Data traffic types Unicast, multicast, broadcast.

Software features Lenovo Networking OS:

Layer 2 switching, Layer 3 switching, virtual local area networks (VLANs), VLAN tagging,

spanning tree protocol (STP), link aggregation (trunk) groups (LAGs), virtual LAGs (vLAGs),

Hot Links, Layer 2 failover, quality of service (QoS), stacking, Edge Virtual Bridging (EVB),

VMready, OpenFlow, IPv4/IPv6 management, IPv4/IPv6 routing, IPv4 virtual router

redundancy protocol (VRRP), IPv4 policy-based routing (PBR).

Performance Non-blocking architecture with wire-speed forwarding of traffic:

Up to 176 Gbps aggregated throughput

As low as 1.8 microseconds switching latency

Up to 132 Million packets per second (Mpps)

Up to 12,288-byte jumbo frames

Receive buffer size: 4 MB

Scalability MAC address forwarding database entries: 32,000

VLANs: 4,095 (2,048 active VLANs)

Per VLAN Rapid Spanning Tree (PVRST) instances: 128

Multiple STP (MSTP) instances: 32

Link aggregation groups: 52

Ports in a link aggregation group: 8

Lenovo RackSwitch G8052 4

Cooling Three 2+1 redundant hot-swap fans. Optional additional fan for 2+2 redundancy. Rear (non-

port side) to front (port side) or front to rear airflow.

Power supply Two load-sharing, redundant hot-swap 450 W AC (100 - 240 V) power supplies (1x IEC 320-

C14 connector on each power supply).

Hot-swap parts SFP/SFP+ transceivers, SFP+ DAC cables, power supplies, fans.

Management

ports

1x RS-232 port (Mini-USB); 1x USB port (for additional firmware, log, and configuration files

storage).

Management

interfaces

Industry standard command line interface (isCLI); SNMP v1 and v3; Netconf (XML). Optional

Lenovo Switch Center. Optional Lenovo XClarity for discovery, inventory, monitoring and

events.

Security features Secure Shell (SSH); Secure Copy (SCP); Secure FTP (sFTP); user level security; Role-based

Access Control (RBAC); LDAP/LDAPS, RADIUS, and TACACS+ authentication; access

control lists (ACLs); port-based network access control (IEEE 802.1x).

Hardware

warranty

Three-year customer-replaceable unit and onsite limited warranty with 9x5 next business day

terms. Optional warranty service upgrades are available through Lenovo: 24x7 coverage, 2-

hour or 4-hour response time, 1-year or 2-year warranty extensions, 1-year or 3-year Remote

Technical Support (RTS).

Software

maintenance

Three-year software support and subscription is included in the base warranty. Optional 1-

year and 2-year warranty extensions include software support and subscription.

Mean Time

Between Failures

190,860 hours with ambient operating temperature of 40° C

Dimensions Height: 44 mm (1.7 in.); width: 439 mm (17.3 in.); depth: 445 mm (17.5 in.)

Weight 10.5 kg (23.1 lb).

Component Specification

Models

The following table lists the G8052 switch models.

Table 2. G8052 switch models

Description

Part

number

Machine

Type-Model

Feature

code

Lenovo RackSwitch G8052 (Rear to Front) 7159G52 7159-HC1 ASY2

Lenovo RackSwitch G8052 (Front to Rear) 715952F 7159-HC2 ASY1

The part number for the G8052 switch includes the following items:

One Lenovo RackSwitch G8052 with two power supplies and three fan assemblies (rear-to-front

airflow or front-to-rear airflow)

Generic Rack Mount Kit (2-post)

Console Cable Kit:

RJ-45 (plug) to RJ-45 (plug) serial cable (1 m)

Mini-USB to RJ-45 (jack) adapter cable (0.2 m) with retention clip

DB-9 to RJ-45 (jack) adapter

Warranty Flyer

Important Notices Flyer

Documentation CD-ROM

Lenovo RackSwitch G8052 5

Configuration notes:

Power cables are not included and must be ordered together with the switch (see "Power supplies

and cables" for details).

SFP/SFP+ transceivers and cables are not included and should be ordered together with the

switch, if required (see "Transceivers and cables" for details).

Transceivers and cables

With the flexibility of the G8052 switch, customers can choose the following connectivity technologies:

For 1 GbE links, customers can use RJ-45 UTP cables up to 100 meters. Customers that need

longer distances can use the 1000BASE-SX transceivers in the SFP/SFP+ ports, which can drive

distances up to 220 meters with 62.5 µ multi-mode fiber (OM1) and up to 550 meters with 50 µ

multi-mode fiber (OM2), or the 1000BASE-LX transceivers that support distances up to 10

kilometers with single-mode fiber (1310 nm).

For 10 GbE links (supported on SFP+ ports), customers can use direct-attached copper (DAC)

SFP+ cables for in-rack cabling for distances up to 7 meters or SFP+ active optical cables (AOCs)

for distances up to 20 meters. These cables have SFP+ connectors on each end and do not need

separate transceivers. For distances up to 30 meters, the 10GBASE-T SFP+ transceiver can be

used with Category 6a or 7 RJ-45 UTP cables.

For longer distances, the 10GBASE-SR transceiver can support distances up to 300 meters over

OM3 multimode fiber or up to 400 meters over OM4 multimode fiber. The 10GBASE-LR

transceivers can support distances up to 10 kilometers on single mode fiber.

For extended distances, the 10GBASE-ER transceivers can support distances up to 40 kilometers

on single mode fiber.

The supported cables and transceivers are listed in the following table.

Table 3. Supported SFP/SFP+ transceivers and DAC cables

Description

Part

number

Feature

code

Maximum

quantity

supported

SFP transceivers - 1 GbE

Lenovo 1000BASE-T (RJ-45) SFP Transceiver (no 10/100 Mbps support) 00FE333 A5DL 4

Lenovo 1000BASE-SX SFP Transceiver 81Y1622 3269 4

Lenovo 1000BASE-LX SFP Transceiver 90Y9424 A1PN 4

SFP+ transceivers - 10 GbE

Lenovo Dual Rate 1/10Gb SX/SR SFP+ Transceiver 00MY034 ATTJ 4*

Lenovo 10GBASE-SR SFP+ Transceiver 46C3447 5053 4

Lenovo 10GBASE-LR SFP+ Transceiver 90Y9412 A1PM 4

Lenovo 10GBASE-ER SFP+ Transceiver 90Y9415 A1PP 4

Lenovo 10GBASE-T SFP+ Transceiver 7G17A03130 AVV1 4

Optical cables for 1 GbE SFP SX and 10 GbE SFP+ SR transceivers

Lenovo 0.5m LC-LC OM3 MMF Cable 00MN499 ASR5 4

Lenovo 1m LC-LC OM3 MMF Cable 00MN502 ASR6 4

Lenovo 3m LC-LC OM3 MMF Cable 00MN505 ASR7 4

Lenovo 5m LC-LC OM3 MMF Cable 00MN508 ASR8 4

Lenovo 10m LC-LC OM3 MMF Cable 00MN511 ASR9 4

Lenovo RackSwitch G8052 6

Lenovo 15m LC-LC OM3 MMF Cable 00MN514 ASRA 4

Lenovo 25m LC-LC OM3 MMF Cable 00MN517 ASRB 4

Lenovo 30m LC-LC OM3 MMF Cable 00MN520 ASRC 4

SFP+ active optical cables - 10 GbE

Lenovo 1m SFP+ to SFP+ Active Optical Cable 00YL634 ATYX 4

Lenovo 3m SFP+ to SFP+ Active Optical Cable 00YL637 ATYY 4

Lenovo 5m SFP+ to SFP+ Active Optical Cable 00YL640 ATYZ 4

Lenovo 7m SFP+ to SFP+ Active Optical Cable 00YL643 ATZ0 4

Lenovo 15m SFP+ to SFP+ Active Optical Cable 00YL646 ATZ1 4

Lenovo 20m SFP+ to SFP+ Active Optical Cable 00YL649 ATZ2 4

SFP+ passive direct-attach cables - 10 GbE

Lenovo 0.5m Passive SFP+ DAC Cable 00D6288 A3RG 4

Lenovo 1m Passive SFP+ DAC Cable 90Y9427 A1PH 4

Lenovo 1.5m Passive SFP+ DAC Cable 00AY764 A51N 4

Lenovo 2m Passive SFP+ DAC Cable 00AY765 A51P 4

Lenovo 3m Passive SFP+ DAC Cable 90Y9430 A1PJ 4

Lenovo 5m Passive SFP+ DAC Cable 90Y9433 A1PK 4

Lenovo 7m Passive SFP+ DAC Cable 00D6151 A3RH 4

SFP+ active direct-attach cables - 10 GbE

Lenovo 1m Active DAC SFP+ Cable 00VX111 AT2R 4

Lenovo 3m Active DAC SFP+ Cable 00VX114 AT2S 4

Lenovo 5m Active DAC SFP+ Cable 00VX117 AT2T 4

Spare console cables

Console Cable Kit Spare (RJ45/DB9) 90Y9462 A2MG 1

Description

Part

number

Feature

code

Maximum

quantity

supported

* Supports 10 Gbps only when used with the G8052.

Lenovo RackSwitch G8052 7

The network cables that can be used with the switch are listed in the following table.

Table 4. G8052 network cabling requirements

Transceiver Standard Cable Connector

10 Gb Ethernet

10Gb SR SFP+ (46C3447)

1/10Gb SFP+ (00MY034)

10GBASE-SR Up to 30 m with fiber optic cables supplied by Lenovo

(see Table 3); up to 300 m with OM3 multimode fiber or

up to 400 m with OM4 multimode fiber

10Gb LR SFP+ (90Y9412) 10GBASE-LR 1310 nm single-mode fiber cable up to 10 km LC

10Gb ER SFP+ (90Y9415) 10GBASE-ER 1310 nm single-mode fiber cable up to 40 km LC

10Gb RJ-45 SFP+

(7G17A03130)

10GBASE-T UTP Category 6a or 7 up to 30 meters RJ-45

Active optical cable 10GBASE-SR SFP+ active optical cables up to 20 m (see Table 3) SFP+

Direct attach copper cable 10GSFP+Cu SFP+ DAC cables up to 7 m (see Table 3) SFP+

1 Gb Ethernet

RJ-45 ports (fixed) 1000BASE-T UTP Category 5, 5E, and 6 up to 100 meters RJ-45

1Gb RJ-45 SFP (00FE333) 1000BASE-T UTP Category 5, 5E, and 6 up to 100 meters RJ-45

1Gb SX SFP (81Y1622) 1000BASE-SX Up to 30 m with fiber optic cables supplied by Lenovo

(see Table 3); 850 nm multimode fiber cable 50 µ (OM2)

up to 550 m or 62.5 µ (OM1) up to 220 m

1Gb LX SFP (90Y9424) 1000BASE-LX 1310 nm single-mode fiber cable up to 10 km LC

Management ports

RS-232 serial console port RS-232 DB-9/RJ-45-to-Mini-USB (comes with the switch) Mini-USB

Software features

Note: The features and specifications that are listed in this section are based on Networking OS 8.4.

The G8052 switch has the following software features:

Scalability and performance:

Media access control (MAC) address learning with automatic updates

Static and LACP (IEEE 802.3ad) link aggregation

Broadcast/multicast storm control

IGMP snooping for limit flooding of IP multicast traffic

IGMP filtering to control multicast traffic for hosts participating in multicast groups

Configurable traffic distribution schemes over trunk links based on source or destination IP

or MAC addresses, or both

Fast port forwarding for rapid STP convergence

Availability and redundancy:

IEEE 802.1D STP for providing L2 redundancy

IEEE 802.1s Multiple STP (MSTP) for topology optimization

IEEE 802.1w Rapid STP (RSTP) (provides rapid STP convergence for critical delay-sensitive

traffic, such as voice or video)

Per-VLAN Rapid STP (PVRST) enhancements

Layer 2 Trunk Failover to support active/standby configurations of network adapter teaming

on servers

Hot Links provides basic link redundancy with fast recovery for network topologies that

require Spanning Tree to be turned off

Lenovo RackSwitch G8052 8

VLAN support:

Port-based and protocol-based VLANs

Up to 4094 VLANs supported per switch (2048 active VLANs), with VLAN numbers 1 - 4094

802.1Q VLAN tagging support on all ports

Ingress VLAN tagging support to tunnel packets through a public domain without altering the

original 802.1Q tagging information

802.1x with dynamic guest VLAN assignment

Private VLANs support as defined in RFC 5517

OpenFlow 1.0 and 1.3.1 support

Virtualization:

Virtual link aggregation groups (vLAGs)

Two switches (vLAG peers) act as a single virtual entity for a multi-port aggregation

vLAG Peer Gateway for improved usage of the inter-switch link between the vLAG

peers

Two-tier vLAGs with VRRP enables active/active VRRP support to reduce routing

latency

Supports 802.1Qbg Edge Virtual Bridging (EVB) which is an emerging IEEE standard for

allowing networks to become virtual machine (VM)-aware:

Virtual Ethernet Bridging (VEB) and Virtual Ethernet Port Aggregator (VEPA) are

mechanisms for switching between VMs on the same hypervisor.

Edge Control Protocol (ECP) is a transport protocol that operates between two peers

over an IEEE 802 LAN providing reliable, in-order delivery of upper layer protocol data

units.

Virtual Station Interface (VSI) Discovery and Configuration Protocol (VDP) allows

centralized configuration of network policies that persist with the VM, independent of

its location.

EVB Type-Length-Value (TLV) is used to discover and configure VEPA, ECP, and

VDP.

VMready support:

Up to 1,024 virtual entities (VEs)

Automatic VE discovery

Up to 1,024 local or distributed VM groups for VEs

NMotion® feature for automatic network configuration migration

Stacking: Up to eight switches in a stack; single IP management

Security:

VLAN-, MAC-, and IP-based access control lists (ACLs)

802.1x port-based authentication

Multiple user IDs and passwords

User access control

Radius, TACACS+ and LDAP/LDAPS authentication and authorization

NIST 800-131A Encryption

Selectable encryption protocol

Secure Input/Output Module (SIOM) policy: Secure and Legacy modes

Quality of Service (QoS):

Support for IEEE 802.1p, IP ToS/DSCP, and ACL-based (MAC/IP source and destination

addresses, VLANs) traffic classification and processing

Traffic shaping and re-marking based on defined policies

Eight priority queues per port for processing qualified traffic

Weighted random early detection with explicit congestion notification (WRED/ECN)

Control plane protection (CoPP)

IPv4/IPv6 ACL metering

Lenovo RackSwitch G8052 9

IP v4 Layer 3 functions:

Host management

IP forwarding

IP filtering with ACLs, up to 640 IPv4 ACLs supported

VRRP for router redundancy

Support for up to 128 static routes

Routing protocol support (RIP v1, RIP v2, OSPF v2, BGP)

Support for policy-based routing (PBR)

Support for DHCP Relay

Support for IGMP snooping and IGMP relay

Support for Protocol Independent Multicast (PIM) in Sparse Mode (PIM-SM) and Dense

Mode (PIM-DM)

IP v6 Layer 3 functions:

IPv6 host management

IPv6 forwarding

Up to 128 static routes

Support for OSPF v3 routing protocol

IPv6 filtering with ACLs, up to 128 IPv6 ACLs supported

Manageability:

Industry-standard command line interface (isCLI)

Simple Network Management Protocol (SNMP V1 and V3)

Telnet interface for CLI

Secure Shell (SSH) v1 and v2 for CLI

Secure Copy (SCP) for uploading and downloading the switch configuration via secure

channels

Service Location Protocol (SLP)

Link Layer Discovery Protocol (LLDP) for discovering network devices

Serial interface for CLI

Scriptable CLI

Dual software images

Firmware image update via TFTP, FTP, Secure FTP (sFTP), or USB storage

Network Time Protocol (NTP) for switch clock synchronization

Netconf (XML)

Lenovo Switch Center management application (optional; sold separately)

Lenovo XClarity (optional; sold separately) for discovery, inventory, monitoring and events

Monitoring:

Switch LEDs for port status and switch module status indication

Remote Monitoring (RMON) agent to collect statistics and proactively monitor switch

performance

Port mirroring for analyzing network traffic passing through the switch

Change tracking and remote logging with the syslog feature

Support for sFLOW agent for monitoring traffic in data networks (separate sFLOW analyzer

required elsewhere)

The following features are not supported with IPv6:

Bootstrap Protocol (BOOTP) and DHCP

Stacking

RADIUS, TACACS+ and LDAP

VMware Virtual Center (vCenter) for VMready

Routing Information Protocol (RIP)

Border Gateway Protocol (BGP)

Virtual Router Redundancy Protocol (VRRP)

Protocol Independent Multicast (PIM)

sFLOW

Lenovo RackSwitch G8052 10

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