2950 Switch Basic Native IOS

Objective

This lab includes basic commands of Native IOS on 2950 and 3550.

Diagram

Configuration

Step 1: After connecting your PC to the Console Port.

Switch con0 is now available

Press RETURN to get started.

00:46:48: %SYS-5-CONFIG_I: Configured from console by console

Switch>

Switch> (User Mode)

Step 2: To Enter Into Privilege mode/Executive Mode From User Mode & Vice-

Versa.

Switch>enable

Switch#

Switch#disable

Switch>

Step 3: To Enter Into Global Configuration Mode.

Switch#config t

Switch(config)#

Step 4: To change the Host Name of Switch.

Switch(config)#hostname 2950-SWA

2950-SWA(config)#

Step 5(A): Set the Line Console Password on the switch.

2950-SWA(config)#line console 0

2950-SWA(config-line)#password cisco

2950-SWA(config-line)#login

Step 5(B): Verification Line Console Password on the switch.

2950-SWA con0 is now available

Press RETURN to get started.

User Access Verification

Password:

2950-SWA>enable

Step 6(A): Set the privileged mode password in clear text.

2950-SWA(config)#enable password cisco

Step 6(B): Verifying the privileged mode password in clear text.

2950-SWA#disable

2950-SWA>enable

Password:

2950-SWA#

Step 7(A): Set the Privileged Mode password in encrypted form.

2950-SWA(config)#enable secret cisco

The enable secret you have chosen is the same as your enable password.

This is not recommended. Re-enter the enable secret.

2950-SWA(config)#enable secret cisco1

Step 7(B): Verifying the Privileged Mode password in encrypted form.

2950-SWA>enable

Password:

Step 8: Set the Line VTY Password on the switch.

2950-SWA(config)#line vty 0 15

2950-SWA(config-line)#password cisco

2950-SWA(config-line)#login

Step 9: Show contents of Current Configuration (RAM).

2950-SWA#show running-config

Building configuration...

Current configuration : 2146 bytes

version 12.1

no service pad

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

hostname 2950-SWA

enable secret 5 $1$yMg4$ON41n4q5YA9tNNWV1GP9H1

enable password cisco

ip subnet-zero

spanning-tree mode pvst

spanning-tree extend system-id

interface FastEthernet0/1

switchport mode dynamic desirable

interface FastEthernet0/2

switchport mode dynamic desirable

<Output Omitted>

interface FastEthernet0/23

switchport mode dynamic desirable

interface FastEthernet0/24

switchport mode dynamic desirable

interface GigabitEthernet0/1

switchport mode dynamic desirable

interface GigabitEthernet0/2

switchport mode dynamic desirable

interface Vlan1

no ip address

shutdown

ip classless

ip http server

line con 0

password cisco

login

line vty 0 4

password cisco

login

line vty 5 15

password cisco

login

end

Step 10: To give the IP Address of Management Domain Interface OF 2950.

2950-SWA(config)#int vlan 1

2950-SWA(config-if)#ip address 10.0.0.10 255.0.0.0

2950-SWA(config-if)#no shutdown

Step 11: Display the information of Management VLAN Interface.

2950-SWA#sh int vlan 1

Vlan1 is up, line protocol is up

Hardware is EtherSVI, address is 000f.2468.0500 (bia 000f.2468.0500)

Internet address is 10.0.0.10/8

MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

ARP type: ARPA, ARP Timeout 04:00:00

Queueing strategy: fifo

Output queue: 0/40 (size/max)

Step 12: Display the information of All Interfaces on the switch.

2950-SWA#sh ip int brief

Interface IP-Address OK Method Status Protocol

Vlan1 10.0.0.10 YES manual up down

FastEthernet0/1 unassigned YES unset down down

FastEthernet0/2 unassigned YES unset down down

FastEthernet0/23 unassigned YES unset down down

<Output Omitted>

FastEthernet0/24 unassigned YES unset down down

GigabitEthernet0/1 unassigned YES unset down down

GigabitEthernet0/2 unassigned YES unset down down

Step 13: Set a IP Default Network In a Switched Network.

2950-SWA(config)#ip default-gateway 10.0.0.1

Step 14: Display the Flash Information.

2950-SWA#dir

OR

2950-SWA#show flash:

Directory of flash:/

2 -rwx 556 Mar 1 1993 00:18:07 +00:00 vlan.dat

3 -rwx 4219426 Mar 1 1993 00:44:10 +00:00 c2950-i5q3l2-mz.121-20.EA2.bin

4 -rwx 315 Mar 1 1993 00:45:44 +00:00 system_env_vars

5 -rwx 0 Mar 1 1993 00:45:43 +00:00 env_vars

8 drwx 192 Mar 1 1993 00:04:07 +00:00 c2950-i9q3l2-mz.121-14.EA1a

87 -rwx 744 Mar 1 1993 00:26:17 +00:00 debug.text

15998976 bytes total (6026752 bytes free)

Step 15: Display the Status of the Interfaces on the switch.

2950-SWA#show interfaces status

Port Name Status Vlan Duplex Speed Type

Fa0/2 notconnect 1 auto auto 10/100BaseTX

<Output Omitted>

Fa0/22 notconnect 1 auto auto 10/100BaseTX

Fa0/23 notconnect 1 auto auto 10/100BaseTX

Fa0/24 notconnect 1 auto auto 10/100BaseTX

Gi0/1 notconnect 1 auto auto unknown

Gi0/2 notconnect 1 auto auto unknown

Step 16: Display the Detailed Information of Interfaces.

2950-SWA#show interfaces

OR

2950-SWA#show interfaces fastEthernet 0/1

FastEthernet0/1 is up, line protocol is up (connect)

Hardware is Fast Ethernet, address is 000f.2468.0501 (bia 000f.2468.0501)

MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Auto-duplex, Auto-speed, media type is 100BaseTX

input flow-control is off, output flow-control is unsupported

ARP type: ARPA, ARP Timeout 04:00:00

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

Step 17: Display the Information of the Mode of Interfaces (Switchport).

2950-SWA#show interfaces switchport

OR

2950-SWA#show interfaces fastEthernet 0/1 switchport

Name: Fa0/1

Switchport: Enabled

Administrative Mode: dynamic desirable

Operational Mode: static access

Administrative Trunking Encapsulation: dot1q

Operational Trunking Encapsulation: native

Negotiation of Trunking: On

Access Mode VLAN: 1 (default)

Trunking Native Mode VLAN: 1 (default)

Trunking VLANs Enabled: ALL

Pruning VLANs Enabled: 2-1001

Capture Mode Disabled

Capture VLANs Allowed: ALL

Protected: false

Appliance trust: none

Step 18: Display the Detailed Information of Interfaces Capabilities.

2950-SWA#show interfaces capabilities

OR

2950-SWA#show interfaces fastEthernet 0/1 capabilities

FastEthernet0/1

Model: WS-C2950-24

Type: 10/100BaseTX

Speed: 10,100,auto

Duplex: half,full,auto

Trunk encap. type: 802.1Q,ISL

Trunk mode: on,off,desirable,nonegotiate

Channel: yes

Step 19: Display the Information of the Trunk Interfaces (Ports).

2950-SWA#show interfaces trunk

Port Mode Encapsulation Status Native vlan

Fa0/23 desirable n-802.1q trunking 1

Fa0/24 desirable n-802.1q trunking 1

Port Vlans allowed on trunk

Fa0/23 1-4094

Fa0/24 1-4094

Port Vlans allowed and active in management domain

Fa0/23 1-2

Fa0/24 1-2

Port Vlans in spanning tree forwarding state and not pruned

Fa0/23 1-2

Fa0/24 2

Step 20: Display the Version Information of the Switch.

2950-SWA#show version

Cisco Internetwork Operating System Software

IOS (tm) C2950 Software (C2950-I5Q3L2-M), Version 12.1(20)EA2, RELEASE SOFTWARE(fc1)

Compiled Wed 19-May-04 05:06 by antonino

Image text-base: 0x00003000, data-base: 0x0082D44C

ROM: Bootstrap program is C2950 boot loader

2950 uptime is 7 hours, 11 minutes

System returned to ROM by power-on

System image file is "flash:c2950-i5q3l2-mz.121-20.EA2.bin"

cisco WS-C2950-24 (PowerPC) processor (revision L0) with 65526K/8192K bytes of

memory.

Processor board ID CAT0805Z0CW

Last reset from warm-reset

Bridging software.

Running Layer2/3 Switching Image

Ethernet-controller 1 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 2 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 3 has 1 Gigabit Ethernet/IEEE 802.3 interface

Ethernet-controller 4 has 1 Gigabit Ethernet/IEEE 802.3 interface

24 FastEthernet/IEEE 802.3 interface(s)

2 Gigabit Ethernet/IEEE 802.3 interface(s)

The password-recovery mechanism is enabled.

384K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address: 00:0F:24:68:05:00

Motherboard assembly number: 73-5700-11

Power supply part number: 34-0966-04

Motherboard serial number: CAT08050JCX

Power supply serial number: DTH08042TFG

Model revision number: L0

Motherboard revision number: A0

Model number: WS-C2950-24-SMI

System serial number: CAT0805Z0CW

Configuration register is 0x10F

Step 21: Display the Information of Dynamic Trunking Protocol (DTP).

2950-SWA#show dtp

Global DTP information

Sending DTP Hello packets every 30 seconds

Dynamic Trunk timeout is 300 seconds

4 interfaces using DTP

Step 22: Display the Information of CDP.

2950-SWA#sh cdp

Global CDP information:

Sending CDP packets every 60 seconds

Sending a holdtime value of 180 seconds

Sending CDPv2 advertisements is enabled

Step 23: Display the Information of CDP Enabled Interfaces.

2950-SWA#sh cdp interfaces

FastEthernet0/1 is up, line protocol is up

Encapsulation ARPA