HP ProCurve Series Read Me First

 100/1000-T — Auto. The communication mode is set at full duplex, the switch auto senses
the link speed, and auto negotiates the flow control and the port MDI/MDI-X operation.
Connecting the Transceivers to Devices with Fixed Configurations. For some older network
devices, including some older HP ProCurve devices, the default for the Gigabit-SX and -LX ports is
a fixed configuration, for example 1000 Mbps/Full Duplex, or is otherwise different from these default
configurations for the transceivers. As a result, those devices may not connect properly to your Series
4100gl Switch; you will not get a link. Additionally, if you connect the 100/1000-T Transceiver, in its
default configuration, to another device that has any fixed (non-Auto) configuration, you will not get
a link.
In summary, this is how the transceive
rs behave if connected to a device with a fixed configuration:
 100-FX Transceiver — a good connection to a 100 Mbps/full duplex device; a link but very
poor performance if connecting to a 100 Mbps/half duplex device because of the resulting
duplex mismatch between your switch and the connected device.
 Gigabit-SX and Gigabit-LX Transceivers — no link unless the transceiver configuration is
modified to match the fixed configuration of the connected device; these devices operate
only at full duplex according to the standards.
 100/1000-T Transceiver — no link unless the transceiver configuration is modified to match
the fixed configuration of the connected device, or the connected device is another HP
ProCurve switch configured to either the Auto-100 or Auto-1000 options.
Make Sure the Configurations Match. Because of these de
fault configuration and full-duplex
considerations, for best operation, you should make sure that the devices connected to the trans-
ceiver ports are configured the same as the default configurations shown above. At a minimum, make
sure the configurations match.
Mini-GBIC Operation Notes
Hot Swapping mini-GBICs. The Gigabit-SX and Gigabit-LX mini-GBICs that you can install in your
HP ProCurve Switch gl mini-GBIC Module can be removed and installed after the module is installed
in the switch and receiving power. You should disconnect the network cables from the mini-GBICs
before hot swapping them.
When you replace a mini-GBIC with another mini-GBIC of a different type and then execute the write
memo
ry command in the switch console, the switch configures the port on the new mini-GBIC with
the default mode (speed and duplex) settings used for new mini-GBIC type. The default mode for
both the Gigabit-SX and Gigabit-LX mini-GBICs is Auto. Note that the switch retains other port-
specific configuration settings, such as trunking, Spanning Tree Protocol (STP), and VLAN values
that were configured for the previous mini-GBIC.
Connecting the mini-GBICs to Devices with Fixed Configurations. For some older network
device
s, including some older HP ProCurve devices, the default for the Gigabit-SX and -LX ports is
a fixed configuration, for example 1000 Mbps/Full Duplex, or is otherwise different from these default
6

HP ProCurve Series Specifications

General

Series	ProCurve
Category	Switch
Ports	Varies by model
Port Speed	Varies by model
Switching Capacity	Varies by model
Forwarding Rate	Varies by model
Power Supply	Varies by model
Management	Web, CLI, SNMP
VLAN Support	Yes
Layer	Layer 2 or Layer 3, varies by model
Jumbo Frame Support	Yes
Dimensions	Varies by model
Weight	Varies by model