Cisco Catalyst 3750 User Manual

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Catalyst 3750 Switch Command Reference
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Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
boot helper-config-file
boot helper-config-file
Use the boot helper-config-file global configuration command to specify the name of the configuration
file to be used by the Cisco IOS helper image. If this is not set, the file specified by the CONFIG_FILE
environment variable is used by all versions of Cisco IOS that are loaded. Use the no form of this
command to return to the default setting.
boot helper-config-file filesystem:/file-url
no boot helper-config file
Syntax Description
Defaults No helper configuration file is specified.
Command Modes Global configuration
Command History
Usage Guidelines This variable is used only for internal development and testing.
Filenames and directory names are case sensitive.
This command changes the setting of the HELPER_CONFIG_FILE environment variable. For more
information, see
Appendix A, “Catalyst 3750 Switch Bootloader Commands.”
Related Commands
filesystem: Alias for a flash file system. Use flash: for the system board flash
device.
/file-url The path (directory) and helper configuration file to load.
Release Modification
12.1(11)AX This command was introduced.
Command Description
show boot Displays the settings of the boot environment variables.

Cisco Catalyst 3750 Specifications

General

Device Type	Switch
Switching Capacity	32 Gbps
Forwarding Rate	38.7 Mpps
Stacking Bandwidth	32 Gbps
RAM	128 MB
Jumbo Frame Support	Yes
Switch Type	Managed
Model	Catalyst 3750 Series
Uplink Interfaces	SFP
Form Factor	Rack-mountable
MAC Address Table Size	12, 000 entries
Routing Protocol	RIP, OSPF, EIGRP
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Layer 3 switching, Layer 2 switching, auto-negotiation, BOOTP support, ARP support, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, traffic shaping, MAC address filtering, Quality of Service (QoS), Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), Cisco EnergyWise technology
Power over Ethernet (PoE)	PoE
Operating Temperature	-5 - 45 °C
Operating Humidity	10% to 85% non-condensing