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networking:router:mikrotik_vlan
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networking:router:mikrotik_vlan [2013/10/13 15:40] gcooper |
networking:router:mikrotik_vlan [2014/12/16 14:06] (current) gcooper |
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| - | ====== | + | ====== |
| - | **VLAN = Broadcast Domain** | + | **Metro Ethernet Notes**: http:// |
| + | |||
| + | **Example with Wireless**: http:// | ||
| **Great examples with CoS**: http:// | **Great examples with CoS**: http:// | ||
| + | |||
| + | * VLAN = Broadcast Domain | ||
| + | * VLAN interfaces on MikroTik devices are "add tag on egress / remove tag from ingress" | ||
| + | * To be able to forward packets from access-ports to VLANs, we need bridges | ||
| + | * Ethernet MTU will increase up to 1522 bytes because of the added tag | ||
| + | * The normal Ethernet MTU is up to 1518 bytes | ||
| + | |||
| + | ===== Switch Ports ===== | ||
| + | |||
| + | * **Access** | ||
| + | * An access port should be used only with untagged packets. | ||
| + | * This kind of port is used to connect PCs to the switch. | ||
| + | * **Trunk** | ||
| + | * A trunk port is capable of receiving and forwarding packets from multiple vlans. | ||
| + | * This type of port is used to interconnect switches. | ||
| + | * **Hybrid** | ||
| + | * A hybrid port is a special mode that allow untagged and tagged packets on the same port. | ||
| + | * For example, you have a VoIP desk phone and you connect your PC to the phone and the phone to the switch. | ||
| + | * We will have a VLAN for VoIP and untagged data for the PC. | ||
| + | * http:// | ||
| + | |||
| + | ===== Create VLANs ===== | ||
| + | |||
| + | * Create VLAN sub-interfaces on physical interfaces | ||
| + | * Bridge the sub-interfaces | ||
| + | * To forward packets from access-ports to VLANs we need bridges | ||
| + | * IP addresses are then configured on the respective bridges | ||
| + | * Treat EoIP tunnel interfaces like physical interfaces | ||
| + | * If you are not stripping tags, you don't need to configure the VLAN interfaces, at least on physical trunk ports | ||
| + | |||
| + | - Configure VLANs on trunk interface ports | ||
| + | * < | ||
| + | - Create bridges for the VLANs | ||
| + | * < | ||
| + | - Add access-ports to the bridges | ||
| + | * < | ||
| + | /interface bridge port add interface=" | ||
| ===== VLAN Tagging ===== | ===== VLAN Tagging ===== | ||
| Line 24: | Line 63: | ||
| https:// | https:// | ||
| + | |||
| + | ====== Notes From Others ====== | ||
| + | |||
| + | Create vlan interfaces to the physical interface connected to the Cisco interface which in trunking mode (I don't like Ciscos naming, a trunk is bundled ports). | ||
| + | Then if you want to have ports in the MT to be " | ||
| + | Put the VLAN interfaces of the physical port and the ports you want to be left untagged into the bridge. | ||
| + | |||
| + | Untagged traffic on the " | ||
| + | |||
| + | Example of MT interfaces: | ||
| + | |||
| + | < | ||
| + | ether1 (this is the port connected to the Cisco " | ||
| + | ether1-vl100 (VLAN interface) | ||
| + | ether1-vl200 | ||
| + | ether1-vl300 | ||
| + | |||
| + | br-vl100 (Bridge for vlan ID 100) | ||
| + | ether1-vl100 (VLAN interface) | ||
| + | ether2 (physical interface untagged traffic) | ||
| + | |||
| + | br-vl200 (Bridge for vlan ID 200) | ||
| + | ether1-vl200 (VLAN interface) | ||
| + | ether3 (physical interface untagged traffic) | ||
| + | |||
| + | br-vl300 (Bridge for vlan ID 300) | ||
| + | ether1-vl300 (VLAN interface) | ||
| + | ether4 (physical interface untagged traffic) | ||
| + | wds-1-vl300 (VLAN interface on the wds-1 interface) | ||
| + | eoip-1 (Ethernet over IP interface in the same Layer2 network) | ||
| + | |||
| + | </ | ||
| + | Summary: | ||
| + | create VLAN interfaces in physical interfaces or WDS interfaces. | ||
| + | create a bridge for each VLAN | ||
| + | I hope this clarify how to do VLAN and bridging in ROS. | ||
| + | |||
| + | I'm not a writer so for you you need some references if you want to read more: | ||
| + | http:// | ||
| + | http:// | ||
| + | http:// | ||
networking/router/mikrotik_vlan.1381700422.txt.gz · Last modified: 2013/10/13 15:40 by gcooper
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