Module 1POST Test & Initial boot Up, and Help
Console into a switch with the same cable used to console into a router
Use same settings in Hyperterminal
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enable command.
configure command – go to global config mode.
copy run start – to save config to NVRAM.
Host Name configuration -1-255 characters
hostname [name]
description [description-string] - interface config. mode
Use quotes when using spaces in string.
IOS-based: same as on a router.
access help by entering ?
When powered up w/out configuration, the default name is Switch.
No passwords have been configured.
All switch ports are part of VLAN 1
Switch has no IP address
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Erase startup
Reload
Follow router configuration method to configure hostname, line passwords, set a default gateway, etc.
Set IP address for management VLAN1 for telnet access.
Fast Ethernet ports default to auto-speed and auto-duplex, or they can be set manually.
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Enter an IP address and management VLAN.
Configuration
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Interface config mode:
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copy run tftp – to save config file to tftp server.
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MAC Address Table
Switches learn the MAC addresses of workstations that are connected to their switch ports by examining the source address of frames that are received on that port – then they are placed in a MAC table.
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Static MAC addresses
If entered by an admin, it will be permanent and not age out or be cleared out by powering down the switch.
The node has to be attached to the switch.
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Anyone can plug in if they are in the open
Port security can be set on an interface – so that, for instance, the number of MAC addresses that can be learned on any one interface could be 1.
Port security can be verified with:
Show port security
Note commands available