The
Catalyst 1900 Switch can be configured by a menu system, the
Command Line Interface (CLI) or the Virtual Switch Manager (VSM) through a web
browser once the IP address has been set. By pressing K at the first menu, you
can access the CLI. The switch can table up to 1024 MAC addresses. The 1900 can
use Store-and-Forward or FragmentFree (default) switching modes.
Catalyst 1900 Switch can be configured by a menu system, the
Command Line Interface (CLI) or the Virtual Switch Manager (VSM) through a web
browser once the IP address has been set. By pressing K at the first menu, you
can access the CLI. The switch can table up to 1024 MAC addresses. The 1900 can
use Store-and-Forward or FragmentFree (default) switching modes.
enable/disable:
used to enter or exit the privileged mode
used to enter or exit the privileged mode
General commands entered in the “#” mode:
show version:
displays basic IOS and switch information.
displays basic IOS and switch information.
show ip:
used to see the IP address settings on the switch, along with subnet, default
gateway, domain name, and other parameters.
used to see the IP address settings on the switch, along with subnet, default
gateway, domain name, and other parameters.
ping address:
used to test connectivity from the switch. telnet or
traceroute can
only be used from a router.
used to test connectivity from the switch. telnet or
traceroute can
only be used from a router.
delete nvram/vtp:
erases the startup-config of a switch or VTP information. You cannot see the
content of the startup-config on a switch, nor copy to or from it. Every
changes made to the configuration is made to the NVRAM file immediately.
erases the startup-config of a switch or VTP information. You cannot see the
content of the startup-config on a switch, nor copy to or from it. Every
changes made to the configuration is made to the NVRAM file immediately.
sh
mac-address-table: displays the MAC address table.
mac-address-table: displays the MAC address table.
clear
mac-address-table dynamic/permanent/restricted: clears the address in the MAC address table
that match the option chosen.
mac-address-table dynamic/permanent/restricted: clears the address in the MAC address table
that match the option chosen.
sh port system:
displays information about switching type. Fragment-Free is the default
switching mode.
displays information about switching type. Fragment-Free is the default
switching mode.
sh vlan [number]:
displays the VLAN information and port association about all VLANs or only the number VLAN.
displays the VLAN information and port association about all VLANs or only the number VLAN.
sh
vlan-membership: displays the VLAN information for all the
interfaces.
vlan-membership: displays the VLAN information for all the
interfaces.
sh trunk a/b [allowed-vlans/joined-vlans/joining-vlans/prune-eligible]:
displays trunk information (port 26=A, 27=B).
displays trunk information (port 26=A, 27=B).
copy tftp://hostaddress/IOSfilename opcode:
used to update the IOS on the switch from a tftp server.
used to update the IOS on the switch from a tftp server.
copy nvram
tftp://hostaddress/filename:
used to backup the startup-config file.
tftp://hostaddress/filename:
used to backup the startup-config file.
copy tftp://hostaddress/filename nvram:
used to restore the startup-config file.
used to restore the startup-config file.
show cdp:
displays cdp information.
displays cdp information.
config terminal:
use to enter the terminal configuration
use to enter the terminal configuration
Commands entered in the “(config)#” mode:
hostname name:
used to define a hostname that is locally significant only.
used to define a hostname that is locally significant only.
enable password
level number
password: used to set user and enable mode passwords (by setting number to
either 1 or 15 respectively). Password must be between 4 and 8 characters and is not
case sensitive.
level number
password: used to set user and enable mode passwords (by setting number to
either 1 or 15 respectively). Password must be between 4 and 8 characters and is not
case sensitive.
en secret password :
used to set the enable password using the encryption service. This will
override the non-secure password if set.
used to set the enable password using the encryption service. This will
override the non-secure password if set.
ip (address ipaddress
subnetmask)/(default-gateway gatewayaddress):
used to set the IP address and subnet mask, or the gateway.
subnetmask)/(default-gateway gatewayaddress):
used to set the IP address and subnet mask, or the gateway.
mac-address-table
aging-time time:
sets the aging time of dynamic addresses in .
aging-time time:
sets the aging time of dynamic addresses in .
mac-address-table
permanent address
destinterface: used to define permanent addresses.
permanent address
destinterface: used to define permanent addresses.
mac-address-table
restricted static address
destinterface sourceinterface: used to define restricted addresses.
restricted static address
destinterface sourceinterface: used to define restricted addresses.
switching-mode
fragment-free/store-and-forward: used to set the
switching mode.
fragment-free/store-and-forward: used to set the
switching mode.
vlan number name name:
defines VLANs. number is
1-1000. VLAN 1 is the default VLAN and all ports are associated to it. Maximum
of 64 VLANs on a switch.
defines VLANs. number is
1-1000. VLAN 1 is the default VLAN and all ports are associated to it. Maximum
of 64 VLANs on a switch.
vtp server/client/(domain name)/(password pw)/(pruning en/dis)/transparent/trap :
configures VLAN Trunk Protocol . Pruning is enabled on the whole domain if it
is enabled on a server.
configures VLAN Trunk Protocol . Pruning is enabled on the whole domain if it
is enabled on a server.
cdp advertise-v2/(holdtime/timer seconds):
used to configure CDP (Cisco Discovery Protocol) information.
used to configure CDP (Cisco Discovery Protocol) information.
interface (ethernet 0/1-25)/(fastethernet 0/26-27)
: the Ethernet interfaces are numbered 1-24, plus the serial port for AUI at
the back, and the FastEthernet uplink ports are numbered 26-27. There is only
one slot, slot 0.
: the Ethernet interfaces are numbered 1-24, plus the serial port for AUI at
the back, and the FastEthernet uplink ports are numbered 26-27. There is only
one slot, slot 0.
Commands entered in the “(config-if)#” or “(config-subif)#”
mode:
mode:
duplex auto/full/full-flow-control/half :
used to change the duplex settings on a given port. auto is
the default for 100BaseTX ports, and half is the default for 10BaseTX ports.
used to change the duplex settings on a given port. auto is
the default for 100BaseTX ports, and half is the default for 10BaseTX ports.
description name:
used to define a description for the interface. Name must have
underscores rather than spaces. show run and show int 0/n will both show the descriptions set.
used to define a description for the interface. Name must have
underscores rather than spaces. show run and show int 0/n will both show the descriptions set.
port secure
max-mac-count number:
will only allow number MAC
addresses on the interface, and they will be permanent.
max-mac-count number:
will only allow number MAC
addresses on the interface, and they will be permanent.
vlan-membership
static/dynamic number:
assigns a port to a VLAN. One VLAN per port unless trunking is used.
static/dynamic number:
assigns a port to a VLAN. One VLAN per port unless trunking is used.
trunk auto/desirable/nonegotiate/on/off:
used on the FastEthernet ports to enable trunking. All VLANs are allowed on the
trunk by default.
used on the FastEthernet ports to enable trunking. All VLANs are allowed on the
trunk by default.
no trunk-vlan number:
to clear VLAN number from being trunked through this interface.
to clear VLAN number from being trunked through this interface.
encapsulation isl vlan_number: in each subinterface of a trunk port, in order to support VLAN
trunking.
trunking.
