Proposal Jaringan

1.Masalah jaringan karena kegagalan piranti jaringan

Skala gangguan akibat dari kegagalan piranti jaringan juga bisa bervariasi, dari hanya sebuah komputer karena kegagalan NIC – lan card; beberapa komputer karena kegagalan switch; atau bahkan berskala luas karena kegagalan pada switch central yang menghubungkan jaringan server. Untuk kegagalan lan card di salah satu komputer bisa diganti dengan network card cadangan anda.
Terus bagaimana kalau kegagalan jaringan itu akibat kerusakan pada switch? Design anda mengenai redundansi jaringan akan sangat membantu dalam menyelamatkan kegagalan jaringan anda. Kebutuhan load balancing dan redundansi haruslah dikaji untuk setiap kebutuhan berdasarkan penggunaan link redundansi; piranti router; switch dan multi-homed host yang bersifat kritis. Tujuan dari system redundansi ini dimaksudkan untuk menjamin ketersediaan layanan dimana tidak ada satupun titik rawan kegagalan.

2.Hal yang perlu di upgrade yaitu Masalah jaringan karena kegagalan kabel jaringan
Yang ini merupakan masalah jaringan yang umum kita temui akibat putusnya kabel jaringan yang bisa mempengaruhi kinerja sebuah komputer dalam jaringan karena putusnya kabel patch anda karena digigit tikus; masalah jaringan yang berdampak pada satu blok gedung karena putusnya kabel antar switch (uplink cable); atau bahkan berdampak pada sebagian besar komputer dalam jaringan lan anda karena kegagalan backbone cable.
3.anti virus perlu diupgrade untuk memperlancar jaringan.

Lab 3.4.3 Part B: Configuring Inter-VLAN Routing

Step 1: Connect the equipment

Step 2: Perform basic configurations on the router

Step 3: Configure VLAN trunking on the router

Step 4: .Configure Switch 1

Are all other switch ports in VLAN 1?

Which switch ports are in VLAN 10?

Which switch ports are in VLAN 20?

Issue the command show vlan.

What difference is noticed between the two commands show vlan brief and show vlan?

Step 5: Configure VLAN trunking on Switch 1

Which interfaces on Switch 1 are in trunk mode?

Which VLANs are allowed and active in the management domain?

Step 6: Configure VTP on Switch 1

Step 7: Configure Switch 2

Step 8: Configure VLAN trunking on Switch 2

Step 9: Configure VTP on Switch 2

Switch2(config)#vtp mode client

From Switch 2, verify that all VLANs have been propagated across the domain by issuing the command show vtp status.

What is the VTP version used on Switch 2?

What is the maximum VLANs supported locally?

What VTP operating mode is used on Switch 2?

What is the VTP domain name?

How did Switch 2 learn the domain name and VLAN information?

Step 10: Verify connectivity

The router and switches should be able to ping the interfaces of the other devices.

a.       From each device, issue a ping to all interfaces.

Are the router pings successful?

b.      From Switch 1, ping to all other devices.

Are Switch 1 pings successful?

From Switch 2, ping to all other devices.

Are Switch 2 pings successful? __________ If the ping is not successful, verify the connections and configurations again. Check to ensure that all cables are correct and that connections are seated. Check the router and switch configurations.

Step 11: Reflection

a.       Why would VLANs be configured in a network?

b.      Why would a VLAN benefit from trunking?

c.       Why should VTP be used?

d.      Which device provides connectivity between different VLANs?

e.       What are some benefits of VLANs?

Lab 3.4.3 Part A: Configuring Inter-VLAN Routing

Step 1: Connect the equipment

Step 2: Perform basic configurations on the router

Step 3: Configure Fast Ethernet connections for each VLAN on the router

Step 4: Configure Switch 1

Step 5: Configure Switch 2

Step 6: Configure Switch 3

Step 7: Configure Host 1

Step 8: Configure Host 2

Step 9: Configure Host 3

Step 10: Configure the server

Step 11: Verify connectivity

The router should be able to ping the interfaces of the other devices.

a.       From the router, issue a ping to Host 1.

Is the ping successful?

b.      From the router, issue a ping to Host 2.

Is the ping successful?

c.       From the router, issue a ping to Host 3.

Is the ping successful?

d.      From the router, issue a ping to the server.

Is the ping successful?

Host 1 should be able to ping all other devices.

a.       From Host 1, ping Host 2.

Is the ping successful?

b.      From Host 1, ping the server.

Is the ping successful?

Why can Host 1 ping the server?

c.       From the server, ping Host 1.

Is the ping successful?

d.      From Switch 3, issue the command show spanning-tree.

Which ports are being used on Switch 3?

What is the role of each of these ports?

Which switch is acting as the root?

What is the protocol that allows VLANs to communicate without switching loops?

Step 12: Reflection

a.       Why does this topology not scale well?

b.      Why would a VLAN benefit from trunking?

c.       Which device provides connectivity between different VLANs?