Lenovo Flex System EN2092 User Manual

Also see for Flex System EN2092: Product guide

Contents

Port status LEDsThe following table provides descriptions of the port status LEDs on the frontpanel of the switch.Table 2. Port status LEDsStatus LED DescriptionLink LED This green LED indicates whether the port link is up or down.v When this LED is lit, there is an active connection (or link)between the corresponding port and the device that is using thisconnection.v When this LED is not lit, it indicates that there is no signal on thecorresponding port, or the link is down.Activity (TX/RX)LEDThis yellow LED indicates the status of the link activity for the port.v When this LED is flashing or lit, the corresponding port isconnected and online, and link activity is occurring on that port.v When this LED is not lit, it indicates that there is no signal or nolink activity on the corresponding port.Configuring the switchThe switch has an internal Ethernet path to the management module, 24 externalEthernet ports, and a serial console port. The switch supports two remote-accessmodes for management through Ethernet connections. You can select the modethat is best suited for your Flex System environment.v Default mode: The default mode uses the internal path to the managementmodule only. In this mode, the remote-access link to the management consolemust be attached to the Ethernet connector on the management module. TheInternet protocol (IP) addresses and SNMP parameters of the switches can beautomatically assigned by the Lenovo Director Flex System Deployment wizard(when available), or you must assign them through the Flex SystemManagement and Configuration program. This mode enables you to provide asecure LAN for management of the Flex Systems subsystems that is separatefrom the data network. See “Establishing a TCP/IP session through themanagement module” on page 18 for more information.v Remote management mode: You can enable remote management of the switchthrough the external ports, instead of or in addition to access through themanagement module. This mode can be enabled only through themanagement-module configuration interface. When this mode is enabled, thetwenty external RJ-45 ports and the four external SFP+ ports support bothmanagement traffic and Flex System application data traffic.This mode enables the use of additional switch IP addresses on different IPsubnets than the management modules. This is useful when the switches are tobe managed and controlled as part of the overall network infrastructure, whilesecure management of other Flex System subsystems is maintained through themanagement module. See “Enabling management through external ports” onpage 19 for additional instructions about configuring the switch for this mode ofoperation.The mini-USB console port provides an alternative path to manage and configurethe switch for local access.Important:Chapter 2. Installing the switch 17