Manual:CRS1xx/2xx series switches examples

Applies to RouterOS: v6.6 +

Summary

Basic switch-chip configuration examples for Cloud Router Switch.

Note: More examples are about to be added.

VLAN

Port Based VLAN

Port Based VLAN

• Create a group of switched ports and configure switch for IEEE 802.1Q bridging.

/interface ethernet
set ether6 master-port=ether2
set ether7 master-port=ether2
set ether8 master-port=ether2
/interface ethernet switch
set bridge-type=customer-vlan-bridge

• Tag ingress traffic coming from each of the access ports by assigning new VLAN ids for untagged (VLAN id 0) frames.

/interface ethernet switch ingress-vlan-translation
add port=ether6 customer-vid=0 new-customer-vid=200 sa-learning=yes
add port=ether7 customer-vid=0 new-customer-vid=300 sa-learning=yes
add port=ether8 customer-vid=0 new-customer-vid=400 sa-learning=yes

• Untag egress traffic on access ports by replacing current VLAN ids with VLAN id 0.

/interface ethernet switch egress-vlan-translation
add port=ether6 customer-vid=200 new-customer-vid=0
add port=ether7 customer-vid=300 new-customer-vid=0
add port=ether8 customer-vid=400 new-customer-vid=0

Protocol Based VLAN

Protocol Based VLAN

• Create a group of switched ports.

/interface ethernet
set ether6 master-port=ether2
set ether7 master-port=ether2
set ether8 master-port=ether2

• Set VLAN for IP and ARP protocols

/interface ethernet switch protocol-based-vlan
add port=ether2 protocol=arp set-customer-vid-for=all new-customer-vid=0
add port=ether6 protocol=arp set-customer-vid-for=all new-customer-vid=200
add port=ether2 protocol=ip set-customer-vid-for=all new-customer-vid=0
add port=ether6 protocol=ip set-customer-vid-for=all new-customer-vid=200

• Set VLAN for IPX protocol

/interface ethernet switch protocol-based-vlan
add port=ether2 protocol=ipx set-customer-vid-for=all new-customer-vid=0
add port=ether7 protocol=ipx set-customer-vid-for=all new-customer-vid=300

• Set VLAN for AppleTalk AARP and AppleTalk DDP protocols

/interface ethernet switch protocol-based-vlan
add port=ether2 protocol=0x80F3 set-customer-vid-for=all new-customer-vid=0
add port=ether8 protocol=0x80F3 set-customer-vid-for=all new-customer-vid=400
add port=ether2 protocol=0x809B set-customer-vid-for=all new-customer-vid=0
add port=ether8 protocol=0x809B set-customer-vid-for=all new-customer-vid=400

MAC Based VLAN

MAC Based VLAN

• Create a group of switched ports.

/interface ethernet
set ether7 master-port=ether2

• Enable MAC based VLAN translation on access port.

/interface ethernet switch port
set ether7 mac-based-vlan-translate=yes mac-based-customer-vlan=all-frames

• Add MAC-to-VLAN mapping entries in MAC based VLAN table.

/interface ethernet switch mac-based-vlan
add src-mac=A4:12:6D:77:94:43 new-customer-vid=200
add src-mac=84:37:62:DF:04:20 new-customer-vid=300
add src-mac=E7:16:34:A1:CD:18 new-customer-vid=400

• Set VLAN id untagging for tagged frames coming from the trunk port.

/interface ethernet switch ingress-vlan-translation
add port=ether2 customer-vlan-lookup-for=tagged new-customer-vid=0 sa-learning=yes

Management IP Configuration

• Add VLAN 99 interface and assign IP address to it. Since the master-port receives all the traffic coming from switch-cpu port, VLAN has to be configured on master-port, in this case "ether2" port.

/interface vlan
add name=vlan99 vlan-id=99 interface=ether2
/ip address
add address=192.168.88.1/24 interface=vlan99 network=192.168.88.0

InterVLAN Routing with unknown VLAN filtering

InterVLAN Routing

InterVLAN routing configuration consists of two main parts – VLAN tagging in switch-chip and routing in RouterOS. This configuration can be used in many applications by combining it with DHCP server, Hotspot, PPP and other features for each VLAN. Additionally this example covers blocking of unwanted other VLAN traffic on ports.

• Create a group of switched ports.

/interface ethernet
set ether6 master-port=ether2
set ether7 master-port=ether2
set ether8 master-port=ether2

• Set VLAN tagging on CPU port for all VLANs to make packets tagged before they are routed and add ingress VLAN translation rules to ensure correct VLAN id assignment is done on access ports.

/interface ethernet switch egress-vlan-tag
add tagged-ports=switch1-cpu vlan-id=200
add tagged-ports=switch1-cpu vlan-id=300
add tagged-ports=switch1-cpu vlan-id=400

/interface ethernet switch ingress-vlan-translation
add ports=ether6 new-customer-vid=200 sa-learning=yes
add ports=ether7 new-customer-vid=300 sa-learning=yes
add ports=ether8 new-customer-vid=400 sa-learning=yes

• For routing add VLAN interfaces on master-port because it connects with CPU port and add IP addresses to created VLAN interfaces. In this example three 192.168.x.1 addresses are added to vlan200, vlan300 and vlan400 interfaces.

/interface vlan
add name=vlan200 interface=ether2 vlan-id=200
add name=vlan300 interface=ether2 vlan-id=300
add name=vlan400 interface=ether2 vlan-id=400

/ip address
add address=192.168.20.1/24 interface=vlan200 network=192.168.20.0
add address=192.168.30.1/24 interface=vlan300 network=192.168.30.0
add address=192.168.40.1/24 interface=vlan400 network=192.168.40.0

• VLAN membership is defined by the VLAN table. Adding entries with VLAN id and ports makes that VLAN traffic valid on those ports. After valid VLAN configuration unknown/invalid VLAN forwarding can be disabled in global switch settings.

/interface ethernet switch vlan
add ports=switch1-cpu,ether6 vlan-id=200 learn=yes
add ports=switch1-cpu,ether7 vlan-id=300 learn=yes
add ports=switch1-cpu,ether8 vlan-id=400 learn=yes

/interface ethernet switch
set forward-unknown-vlan=no

Mirroring

Mirroring

The Cloud Router Switches support three types of mirroring. Port based mirroring can be applied to any of switch-chip ports, VLAN based mirroring works for all specified VLANs regardless switch-chip ports and MAC based mirroring copies traffic sent or received from specific device reachable from the port configured in Unicast Forwarding Database.

Port Based Mirroring

The first configuration sets ether5 port as a mirror0 analyzer port for both ingress and egress mirroring, mirrored traffic will be sent to this port. Port based ingress and egress mirroring is enabled from ether7 port.

/interface ethernet switch
set ingress-mirror0=ether8 egress-mirror0=ether8

/interface ethernet switch port
set ether7 egress-mirror-to=mirror0 ingress-mirror-to=mirror0

VLAN Based Mirroring

The second example requires ports to be switched in a group. Mirroring configuration sets ether5 port as a mirror0 analyzer port and sets mirror0 port to be used when mirroring from VLAN occurs. VLAN table entry enables mirroring only for VLAN 300 traffic between ether2 and ether7 ports.

/interface ethernet
set ether7 master-port=ether2

/interface ethernet switch
set ingress-mirror0=ether5 vlan-uses=mirror0

/interface ethernet switch vlan
add ports=ether2,ether7 vlan-id=300 learn=yes ingress-mirror=yes

MAC Based Mirroring

The third configuration also requires ports to be switched in a group. Mirroring configuration sets ether5 port as a mirror0 analyzer port and sets mirror0 port to be used when mirroring from Unicast Forwarding database occurs. The entry from Unicast Forwarding database enables mirroring for packets with source or destination MAC address E7:16:34:A1:CD:18 from ether8 port.

/interface ethernet
set ether8 master-port=ether2

/interface ethernet switch
set ingress-mirror0=ether5 fdb-uses=mirror0

/interface ethernet switch unicast-fdb
add port=ether8 mirror=yes svl=yes mac-address=E7:16:34:A1:CD:18

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