Cisco 3020 Installation Guide download pdf (Page 5)

Table 1 describes the Cisco Catalyst Blade Switch 3120 for HP switch module ports. Each external

port has an associated LED.

Cisco Catalyst Blade Switch 3020 for HP

The Cisco Catalyst Blade Switch 3020 for HP is a 24-Gigabit Ethernet port, Layer 2+ switch module.

Sixteen of the Gigabit Ethernet ports are internal 1000BASE-X downlink ports that connect to the

blade enclosure. The other eight Gigabit Ethernet ports are external uplink ports that provide

connections to other switches or routers. Uplink ports operate at 10/100/1000 M/ps if used as

copper-based ports and operate at 1000 M/ps if small form-factor pluggable (SFP) fiber-optic modules

are installed. See Table 2 for more detailed descriptions of the switch module ports.

Table 1 Cisco Catalyst Blade Switch 3120 for HP Port Descriptions

Port Description

Ports 1 to 16 Internal Gigabit Ethernet 1000BASE-X downlink ports that connect to the

blade enclosure.

Ports 17 to 18 Internal cross-connection ports that you can use to connect to a second

switch in the blade enclosure through a backplane connector. You can

configure these ports by using the Cisco IOS CLI. However, if the blade

switches are stacked, these ports are disabled.

Ports 19 to 22 10-Gigabit Ethernet module slots for use with the Cisco TwinGig Converter

Modules and Cisco X2 transceiver modules.

Ports 23 to 26 External 10/100/1000BASE-T copper Gigabit Ethernet uplink ports that

support auto-MDIX and autonegotiation.

Internal 100BASE-T

Ethernet port

The Ethernet management port (Fa0) is used only for switch module

management traffic, not for data traffic. It is connected to the

Onboard Administrator through the blade enclosure backplane connector.

Traffic to and from this port is isolated from the switch ports. This port

only supports autonegotiation with 100 Mb/s and full-duplex mode.

StackWise Plus ports Stacking cable ports.

Console port Switch module management port (RJ-45 connector).

1 2 3 4 5 6 7 8 9 10 ... 27 28

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Cisco 3020 Installation Guide Page 5