A comprehensive experiment of CCNA exchange

(1) interconnection between the VLAN: single-arm routing

(2) Each PC can automatically obtain IP address: DHCP

(3) Two switches require VLAN2 to go above, VLAN3 go below: STP load Balancing

(4) SW2 can learn from SW1 VLAN related information: Trunk, VTP

(5) can be managed anywhere in every network device: Telnet switch with VLAN 1 do management VLAN3

(6) switch connecting the PC port to achieve rapid convergence (portfast)

------------------------------------------------------SW1-----------------

SW1 (config) #int F0/13

SW1 (config-if) #switchport trunk Encapsulation dot1q

SW1 (config-if) #switchport mode trunk//configuration Trunk

SW1 (config-if) #int F0/14

SW1 (config-if) #switchport trunk Encapsulation dot1q

SW1 (config-if) #switchport mode trunk

SW1 (config) #int F0/3

SW1 (config-if) #switchport mode trunk

* Modified VTP domain for YB, and created Vlan2 and VLAN3.

Sw1#show VTP S

VTP Version:2

Configuration Revision:2

Maximum VLANs Supported locally:128

Number of existing Vlans:7

VTP operating Mode:server

VTP Domain Name:yb

VTP Pruning mode:disabled

VTP V2 mode:disabled

VTP Traps generation:disabled

MD5 digest:0x00 0xAB 0x73 0xC7 0x59 0xf6 0x50 0xc8

Configuration last modified by 0.0.0.0 at 3-1-93 00:15:43

Local Updater ID was 172.16.14.10 on interface Vl1 (lowest numbered VLAN interface found

SW1 (config) #enable password Cisco

SW1 (config) #line vty 0 15

SW1 (config) #int vlan 1

SW1 (config-if) #ip address 172.16.14.10 255.255.255.0

SW1 (config-line) #password Cisco

Sw1#show VLAN

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------

1 Default Active FA0/3, FA0/4, FA0/5, FA0/6

FA0/7, FA0/8, FA0/9, FA0/10

FA0/11, FA0/12, FA0/15, FA0/16

FA0/17, FA0/18, FA0/19, FA0/20

FA0/21, FA0/22, FA0/23, fa0/24

2 VLAN0002 Active FA0/1

3 VLAN0003 Active FA0/2

* Assign F0/1 to vlan2 and assign F0/2 to VLAN3.

SW1 (config) #int range F0/1-2

SW1 (config-if-range) #spanning-tree portfast//configure Fast Convergence interface.

--------------------------------------------------------------SW2-----------------------------------

SW2 (config) #int F0/14

SW2 (config-if) #spanning-tree VLAN 3 cost 18

Sw2#show Spanning-tree VLAN 2

FA0/1 DESG FWD 128.1 Shr

FA0/13 Root FWD 128.13 peer-to-peer

FA0/14 altn BLK 128.14 peer-to-peer

Sw2#show Spanning-tree VLAN 3

FA0/13 altn BLK 128.13 peer-to-peer

FA0/14 Root FWD 128.14 peer-to-peer

* Achieve load balancing.

SW2 (config) #int F0/1

SW2 (config-if) #switchport mode access

SW2 (config-if) #switchport Access VLAN 2

Sw2#show VTP Status

VTP Version:2