Lenovo RackSwitch G8272 Посібник з експлуатації - Сторінка 18

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Ethernet standards

The switch supports the following Ethernet standards:

IEEE 802.1AB Data Center Bridging Capability Exchange Protocol (DCBX) (ENOS only)

IEEE 802.1D Spanning Tree Protocol (STP)

IEEE 802.1p Class of Service (CoS) prioritization

IEEE 802.1s Multiple STP (MSTP)

IEEE 802.1Q Tagged VLAN (frame tagging on all ports when VLANs are enabled)

IEEE 802.1Qbg Edge Virtual Bridging (ENOS only)

IEEE 802.1Qbb Priority-Based Flow Control (PFC) (ENOS only)

IEEE 802.1Qaz Enhanced Transmission Selection (ETS) (ENOS only)

IEEE 802.1x port-based authentication (ENOS only)

IEEE 802.1w Rapid STP (RSTP)

IEEE 802.3 10BASE-T Ethernet

IEEE 802.3ab 1000BASE-T copper twisted pair Gigabit Ethernet

IEEE 802.3ad Link Aggregation Control Protocol

IEEE 802.3ae 10GBASE-SR short range fiber optics 10 Gb Ethernet

IEEE 802.3ae 10GBASE-LR long range fiber optics 10 Gb Ethernet

IEEE 802.3ae 10GBASE-ER extended range fiber optics 10 Gb Ethernet

IEEE 802.3ba 40GBASE-SR4 short range fiber optics 40 Gb Ethernet

IEEE 802.3ba 40GBASE-CR4 copper 40 Gb Ethernet

IEEE 802.3u 100BASE-TX Fast Ethernet

IEEE 802.3x Full-duplex Flow Control

IEEE 802.3z 1000BASE-SX short range fiber optics Gigabit Ethernet

IEEE 802.3z 1000BASE-LX long range fiber optics Gigabit Ethernet

Cooling

The G8272 switch supports up to four variable speed, hot-swap fan assemblies (four fan assemblies come

standard with the switch and they provide 3+1 redundancy). Spare fan assemblies can be ordered, if

required (see the following table). Each option contains one hot-swap fan assembly (rear-to front or front-

to-rear).

Table 7. Fan assembly spare options

Description

Rear to front airflow (7159-HCW)

Lenovo RackSwitch Hot-swap, Rear-to-Front Fan Assembly

Front to rear airflow (7159-HCV)

Lenovo RackSwitch Hot-swap, Front-to-Rear Fan Assembly

Power supplies and cables

Lenovo RackSwitch G8272

Part

Feature

number

code

00FM441

ASRG

00FM440

ASRF