Shulou(Shulou.com)06/02 Report--

Experiment 3:

Analysis: looking at the stp of sw1 and sw2, we can see that sw1 and sw2 are 11 ports of the root bridge sw3 and sw6

To block the port, so you can know the direction of packets between PCs, and you can also change the exchange.

The role of the machine: stp priority {id} (a multiple of 4096, default is 32768)

Ideas and configuration:

1. Configure SW3 to create vlan10 and vlan20

Add port 1 to vlan10 ports 11 and 13 in trunk mode

two。 Configure SW4 to create vlan10 and vlan20

Add port 1 to vlan20 ports 11 and 14 in trunk mode

3. Configure SW5 to create vlan10 and vlan20

Add port 1 to vlan10 ports 11 and 13 in trunk mode

4. Configure SW6 to create vlan10 and vlan20

Add port 1 to vlan20 ports 11 and 14 in trunk mode

5. Configure SW1 to create vlan10 and vlan20

12713, port 14 is configured in trunk mode

Ports 1 and 3 join vlan10 2 ports join vlan20

6. Configure SW2 to create vlan10 and vlan20

12713, port 14 is configured in trunk mode

Ports 1 and 3 join vlan20 2 ports join vlan10

7. Configure Port R1 0 ip:192.168.10.254 255.255.255.0

Configure virtual network management and increase priority link snooping

Vrrp vrid 1 virtual-ip 192.168.10.250

Vrrp vrid 1 priority 150

Vrrp vrid 1 track interface g0/0/2 reduce 80

1 port ip:192.168.20.254 255.255.255.0

Configure virtual network management

Vrrp vrid 2 virtual-ip 192.168.20.250

2-port ip:192.168.30.1 255.255.255.0

8. Configure R20 port ip:192.168.20.253 255.255.255.0

Configure virtual network management and increase priority link snooping

Vrrp vrid 2 virtual-ip 192.168.20.250

Vrrp vrid 2 priority 150

Vrrp vrid 2 track interface g0/0/2 reduce 80

1 port ip:192.168.10.253 255.255.255.0

Configure virtual network management

Vrrp vrid 1 virtual-ip 192.168.10.250

2-port ip:192.168.30.2 255.255.255.0

9. Configure R30 port ip:192.168.10.252 255.255.255.0

Configure virtual network management and improve priority

Vrrp vrid 1 virtual-ip 192.168.10.250

Vrrp vrid 1 priority 120

1 port ip:192.168.20.252 255.255.255.0

Configure virtual network management and improve priority

Vrrp vrid 2 virtual-ip 192.168.20.250

Vrrp vrid 2 priority 120

2-port ip:192.168.30.3 255.255.255.0

10. Configure sw7 to create vlan30 and add port 1, 2, 3, 4 to vlan30

11. Configure R4, configure 1 port ip:192.168.30.254 255.255.255.0

Configure port 0 ip:192.168.40.254 255.255.255.0

Configure rip

Rip

Version 2

Network 192.168.30.0

Network 192.168.40.0

twelve。 Configure R1

Configure rip

Rip

Version 2

Network 192.168.10.0

Network 192.168.20.0

Network 192.168.30.0

13. Configure R2

Configure rip

Rip

Version 2

Network 192.168.10.0

Network 192.168.20.0

Network 192.168.30.0

14. Configure R3

Configure rip

Rip

Version 2

Network 192.168.10.0

Network 192.168.20.0

Network 192.168.30.0

15. Configure pc1 ip:192.168.10.1 255.255.255.0

Network management 192.168.10.254

Configure pc2 ip:192.168.20.1 55.255.255.0

Network management 192.168.20.254

Configure pc3 ip:192.168.10.2 255.255.255.0

Network management 192.168.10.254

Configure pc4 ip:192.168.20.2 255.255.255.0

Network management 192.168.20.254

Configure server ip 192.168.40.1 255.255.255.0

Network management 192.168.40.254

16. At this time, the whole network is interconnected.

=

OSPF is also available in steps 11-14.

Configure R1

Ospf route-id 1.1.1.1

Area 0

Network 192.168.10.0 0.0.0.255

Network 192.168.20.0 0.0.0.255

Network 192.168.30.0 0.0.0.255

Configure R2

Ospf route-id 2.2.2.2

Area 0

Network 192.168.10.0 0.0.0.255

Network 192.168.20.0 0.0.0.255

Network 192.168.30.0 0.0.0.255

Configure R3

Ospf route-id 3.3.3.3

Area 0

Network 192.168.10.0 0.0.0.255

Network 192.168.20.0 0.0.0.255

Network 192.168.30.0 0.0.0.255

Configure R4

Ospf route-id 4.4.4.4

Area 0

Network 192.168.10.0 0.0.0.255

Network 192.168.20.0 0.0.0.255

Network 192.168.30.0 0.0.0.255

=

At this time, the external network can also ping to the internal network, which is impossible in the real environment, so the external network will use isolated vlan technology.

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Key points:

Layer 2

Link bundling

Third floor

Vlan interchannel

Router

One-arm routing

SVI

Single point of failure

Redundant links / Devic

Link bundling (link backup / data load balancing)

No bundling (link backup-floating routing)

Gateway redundancy technology

VRRP (group)

HSRP

GLBP

= =

Ensure interoperability of terminal equipment (pc/server)

A network segment

exchange

Different network segments

Routin

Fault:

1. Its own switching failure

two。 Single point of failure

Redundant links / Devic

Problem-layer 2 Loop issu

Spanning tree protocol

Problem of insufficient bandwidth

Link bundling

3. Self-routing failure

4. Single point of failure

Redundant links / Devic

Problem-layer 3 Loop issu

Routing protocol

Routing problem

Routing protocol

Insufficient bandwidth problem

Link bundling

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