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x®, BladeCenter® and Flex System® designs
RackSwitch G8000 Front-to-Rear version for ports located in the front of the rack matching airflow of
iDataPlex and NeXtScale System designs
Ports
44 auto-sensing 10/100/1000 Mb Ethernet ports with RJ-45 connectors
Four SFP ports for 1 GbE transceivers (support for 1000BASE-SX, 1000BASE-LX, or 1000BASE-T).
SFP modules are not included and must be purchased separately (See Table 3).
Up to four additional ports per switch for 1 Gb or 10 Gb Ethernet with optional uplink modules
Up to four SFP/SFP+ 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 (DAC) cables. SFP+ modules or DAC cables are not included
and must be purchased separately (See Table 3).
Up to four CX4 ports for 10 Gb Ethernet with InfiniBand 4X copper cables (support for
10GBASE-CX4). InfiniBand 4X cables are not included and must be purchased separately
(Lenovo does not supply these cables).
One RS-232 serial port (Mini-USB connector) that provides an additional means to configure the
switch module
Scalability and performance
1 Gb and 10 Gb Ethernet ports for bandwidth optimization and performance
Non-blocking architecture with wire-speed forwarding of traffic; up to 176 Gbps of full duplex
switching throughput
100% line rate performance with switching latency of less than 3 microseconds
Media access control (MAC) address learning: Automatic update, support of up to 16,000 MAC
addresses
Static and LACP (IEEE 802.3ad) link aggregation, up to 52 trunk groups, up to 8 member ports per
trunk group
Support for jumbo frames (up to 9,216 bytes)
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/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, up to 32 STP instances are supported
by single switch
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
compute nodes
Hot Links provides basic link redundancy with fast recovery for network topologies that require
Spanning Tree to be turned off
VLAN support
Port-based and protocol-based VLANs
Up to 1024 VLANs supported per switch with VLAN numbers ranging from 1 to 4094
802.1Q VLAN tagging support
802.1x with dynamic guest VLAN assignment
Private VLANs support
Virtualization
Virtual Link Aggregation (vLAG) support
VMready support
Up to 1,024 virtual entities (VEs)
Automatic VE discovery
Up to 32 local or distributed VM groups for VEs
NMotion™ feature for automatic network configuration migration
Stacking of up to six G8000 switches
RackSwitch G8000
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