Lenovo 7309DRX Manuale del prodotto - Pagina 8

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configuration/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.

Features and specifications

Note: Features and specifications listed in this section are based on Networking OS 7.8.

The RackSwitch G8264CS has the following features and specifications:

Form factor: 1U rack mount switch

RackSwitch G8264CS Rear-to-Front version for ports located in the rear of the rack matching System

x®, BladeCenter® and Flex System® designs

RackSwitch G8264CS Front-to-Rear version for ports located in the front of the rack matching airflow

of iDataPlex and NeXtScale System® designs

Ports

36 ports for 1 Gb or 10 Gb Ethernet SFP/SFP+ transceivers (support for 1000BASE-SX, 1000BASE-LX,

1000BASE-T, 10GBASE-SR, 10GBASE-LR, or 10GBASE-ER) or SFP+ direct-attach copper cables.

SFP+ modules and DAC cables are not included and must be purchased separately (see Table 3).

12 Omni Ports, each of which can operate as a 10 Gb Ethernet (support for 10GBASE-SR, 10GBASE-

LR, 10GBASE-ER or 10 GbE SFP+ DAC cables), or auto-negotiating 4/8 Gb Fibre Channel, depending

on the SFP+ transceiver installed in the port. SFP+ modules and DAC cables are not included and

must be purchased separately (see Table 3).

Note: Omni Ports do not support 1 Gb Ethernet SFP transceivers.

4 ports for 40 Gb Ethernet QSFP+ transceivers, QSFP+ to QSFP+ DAC cables, or QSFP+ to 4x 10 Gb

SFP+ break-out cables. QSFP+ modules and DAC cables are not included and must be purchased

separately (see Table 3).

One 10/100/1000 Ethernet port (RJ-45 connector) for out of band (OOB) management

One RS-232 serial port (mini-USB connector) that provides an additional means to configure the switch

One USB port for mass storage devices

Scalability and performance

1 Gb, 10 Gb, and 40 Gb Ethernet ports for bandwidth optimization and performance

Up to 64 10 Gb Ethernet SFP+ connections (with optional break-out cables)

Non-blocking architecture with wire-speed forwarding of traffic and aggregated throughput of 1.28

Tbps

Media access control (MAC) address learning: automatic update, support for up to 128,000 MAC

addresses

Up to 128 IP interfaces per switch (IP interface 128 is reserved for out-of-band management)

Static and LACP (IEEE 802.3ad) link aggregation, up to 64 trunk groups with up to 32 ports per trunk

group

Support for jumbo frames (up to 9,216 bytes)

Broadcast/multicast storm control

IGMP snooping to 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/destination IP or MAC

addresses, or both

Fast port forwarding and fast uplink convergence for rapid STP convergence

Availability and redundancy

Virtual Router Redundancy Protocol (VRRP) for Layer 3 router redundancy

IEEE 802.1D STP for providing L2 redundancy

IEEE 802.1s Multiple STP (MSTP) for topology optimization, up to 32 STP instances are supported by a

single switch

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

voice or video

Per-VLAN Rapid STP (PVRST) enhancements

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

compute nodes

RackSwitch G8264CS