Switchlayer 3 merupakan salah satu perangkat Cisco yang dapat bekerja layaknya sebuah router. Switch layer 3 bekerja pada lapisan network pada model OSI (Open System Interconnection). Switch layer 3 menggabungkan fungsi switch dan router. Salah satu fungsinya adalah menghubungkan host yang berbeda VLAN seperti yang akan dijelaskan pada materi ini. MultilayerSwitch atau Switch Layer 3 adalah switch yang memiliki kemampuan layaknya router yakni menghubungkan host-host yang berbeda jaringan. Dengan menggunakan Multilayer Switch, konfigurasi pembuatan vlan dan menghubungkan antar vlan dapat dilakukan tanpa perlu menambahkan perangkat router. Asis illustrated in the topology, there are 4 VLAN groups configured on the switch and both the AP and the Internet gateway router are connected to the ports of the switch, here we suppose AP is connected to Port 1 and the Internet gateway router is connected to Port 2,vlan1 includes port 1,2,3,4; VLAN 2 includes port 1,2,5,6; VLAN 3 includes port 1,2,7,8; VLAN 4 includes port 1,2,9,10.After Pleaseconsult user documentation for configuring VTP/VLAN in config mode. Router (vlan)#vlan 100 VLAN 100 added: Name: VLAN0100 Router (vlan)# %LINK-5-CHANGED: Interface Vlan100, changed state to up. The show vlan-switch command displays the VLAN configured on the EtherSwitch Service Module of the ISR router. Router#show vlan-switch. Thisexample shows how to configure a port as an access port in VLAN 2: Router# configure terminal Router(config)# interface gigabitethernet 0/1 Router(config-if)# switchport mode access Router(config-if)# switchport access vlan 2 Router(config-if)# exit Displaying VLANs. Use the show vlan privileged EXEC command to display a list of all VLANs on the router. TestingVLAN configuration. Access PC's command prompt to test VLAN configuration. Double click PC-PT and click Command Prompt. We have two VLAN configurations VLAN 10 and VLAN 20. Let's test VLAN 10 first. In VLAN 10 we have three PCs with IP addresses , 10.0.0.3 and 10.0.0.4. Kalauuntuk menghubungkan 2 VLAN yang berbeda kita membutuhkan 1 alat lagi yaitu Router. Yap Router !, fungsinya untuk menghubungkan 2 jaringan yang berbeda. 1 Switch & 1 Router. Untuk area yang kuning itu VLAN 10 dan area yang Hijau itu VLAN 20. Dan Beri IP ke masing masing PC, Bisa Liat di Gambar atau di Bawah. ===== VLAN 10 ===== PC0 IP Aftermanaging to obtain a Mikrotik switch. There is a great class for connecting to MK command prompt - it's linked here: API in C Sharp. The commands are: /interface ethernet switch vlan add switch=" [yourswitch]" vlan-id=" [yourvlan]" ports=" [porttoassign]" To assign the port: Ihave an 8 port TP-Link SG3210 layer 2 802.1Q tag capable switch and a Cisco 1801 router. I set up 3 Vlans on the switch and assign ports to each. I want to make computers on each Vlan 'see' each other. Can I set up a single port on the switch as a trunk port out to the Cisco 1801, and use the Cisco to route between the Vlans? Verifythe following real quick: -Make sure that your default route on your L3 switch is set to the next hop (ISP/router) ( 0.0.0.0 [ip address of next hop]) -Make sure that the systems on vlan20 are using 192.168.2.1 as their gateway. -Make sure that the systems on vlan1 are using 192.168..93 as their gateway. NG5L. While echoing Ron and John's comments that there is no universal "best practice" here and there's only what's best for you, I'd like to propose an alternative solution that you haven't mentioned yet. EdgeRouter does support bonding/link aggregation using Link Aggregation Control Protocol LACP. However, in older EdgeRouters, this traffic was not eligible for offloading, which meant bonding for example 4 gigabit ports wouldn't result in 4Gbps of bandwidth. It would produce redundancy, but some bandwidth less than 4Gbps, possibly simply 1Gbps. However, according to this page, newer ER-X, ER-X-SFP, and EP-R6 EdgeRouters support offloading, so aggregating 4 gigabit ports should result in 4Gbps or very near it, allowing for some losses. So, in theory, if you had one of the newer EdgeRouters, and you didn't need certain mutually-exclusive protocols, and your network topology supported it, you could do the following Bond X ports on the router to support XGbps of bandwidth and also redundancy Bond X ports on the switch in the same way Connect X ethernet cables between the bonded router ports and the bonded switch ports Configure your VLANs on the single bonded interface on the router and switch I say this in a rather nebulous way; there are a lot of steps to this, clearly Through this configuration, all the VLANs would be able to take advantage of up to XGbps of bandwidth between the VLANs for allowed traffic, so that you wouldn't have saturated links using all 1Gbps and bottlenecked while other links used only a few Mbps and remained essentially unitized. There are a couple of problems with your idea. You cannot get traffic from one VLAN to another VLAN without routing. Either you have a dedicated router, or a layer-3 switch, which is really a router, too. A layer-2 switch with separate VLANs and SVIs still cannot let hosts on one VLAN communicate with hosts on a different VLAN. Frames can be switched at layer-2 on the same VLAN, but you need to strip the frames to get to the packets to route them between VLANs. Switches are mostly limited to ethernet. Routers are used to connect different physical and data-link protocols, too. Some translating bridges can do some of that at layer-2. For example, WAPs translate layer-2 frames between ethernet and Wi-Fi, but only if they are on the same layer-2 LAN. Even layer-3 switches usually have fewer resources RAM, CPU, etc. than dedicated routers do, and dedicated routers often have special hardware that you do not normally find in switches.