Cisco Cisco Catalyst Blade Switch 3020 for HP インストールガイド

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The blade server includes a chassis management module, the Onboard Administrator. Each switch 
module connects internally to the Onboard Administrator through 100BASE-T Ethernet links. You 
can manage the switch modules through the Onboard Administrator on a management network that 
is isolated from other switch traffic. You can also manage the switch module through any of the 
external uplink ports.
Table 1 describes the switch module ports. Each external port has an associated LED.
The switch module is powered from the blade server backplane, and temperature management is 
provided by the blade server. There is no fan on the switch module.
Table 1
Cisco Catalyst Blade Switch 3020 for HP Port Descriptions
Port
Description
Ports 1 to 16
Internal Gigabit Ethernet 1000BASE-X downlink ports.
Ports 17 to 20 and 
Ports 17x to 20x
Dual-purpose SFP module/RJ-45 copper Ethernet uplink ports. The SFP module 
ports support only Cisco 1000BASE-SX fiber-optic modules.
By default, the switch module dynamically selects the interface type that first 
links up. SFP modules have precedence if both SFP module and copper Ethernet 
interface types are in link-up state. You can also specifically configure each port 
for either copper Ethernet or SFP modules if you do not want to use 
autodetection.
The copper Ethernet ports support 
automatic medium-dependent interface 
crossover (auto-MDIX) 
and autonegotiation.
For information about configuring speed and duplex settings for a 
dual-purpose uplink port, see the switch module software configuration guide.
Ports 21x to 22x
External 10/100/1000BASE-T copper Gigabit Ethernet uplink ports that 
support auto-MDIX, and autonegotiation.
Ports 23x to 24x
Dual-purpose external/internal 10/100/1000BASE-T copper Gigabit Ethernet 
uplink ports. These ports can be configured for internal 1000BASE-X 
cross-connection with a corresponding switch module. When ports 23x and 
24x are in external operation mode, they support auto-MDIX and 
autonegotiation. The default is external operation mode.
Internal 
100BASE-T 
Ethernet port
This port (fa0) is used only for switch module management traffic, not for data 
traffic. It is connected to the Onboard Administrator through the blade server 
backplane connector.
Console port
RJ-45 switch module management port.