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Example: Configuring Service Chaining for LAN-WAN Routing
This example shows how to configure service chaining for LAN-WAN routing.
Requirements
This example uses the following hardware and software components:
NFX150 running Junos OS Release 18.1R1
Overview
This example explains how to configure the various layers of the device to enable traffic from the LAN network to enter the device, flow through the OVS, exit the device, and enter the WAN network.
Topology
This example uses the topology shown in Figure 1.
Configuration
Map the Interfaces
Step-by-Step Procedure
Map the heth-0-0 physical port to the FPC0 interface.
user@host# set vmhost virtualization-options interfaces ge-0/0/0 mapping interface heth-0-0
Map the FPC1 interface ge-1/0/2 to the physical port heth-0-4.
user@host# set vmhost virtualization-options interfaces ge-1/0/2 mapping interface heth-0-4
Configure the Layer 2 Datapath
Step-by-Step Procedure
Configure VLANs for the LAN-side interfaces.
user@host# set vlans vlan100 vlan-id 100
Configure the LAN-side front panel ports and add them to the LAN-side VLAN.
user@host# set interfaces ge-0/0/0 unit 0 family ethernet-switching interface-mode trunk user@host# set interfaces ge-0/0/0 unit 0 family ethernet-switching vlan members vlan100
Configure the internal-facing interfaces as trunk ports and add them to the LAN-side VLAN. The internal-facing interfaces are typically trunk ports, as they must support traffic from multiple front panel ports and VLANs.
user@host# set interfaces sxe-0/0/0 unit 0 family ethernet-switching interface-mode trunk user@host# set interfaces sxe-0/0/0 unit 0 family ethernet-switching vlan members vlan100
Configure the Layer 3 Datapath
Step-by-Step Procedure
Configure VLAN tagging on ge-1/0/0:
user@host# set interfaces ge-1/0/0 vlan-tagging user@host# set interfaces ge-1/0/0 unit 0 vlan-id 100 user@host# set interfaces ge-1/0/0 unit 0 family inet address 192.0.3.1/24
Configure VLAN tagging on ge-1/0/2:
user@host# set interfaces ge-1/0/2 vlan-tagging user@host# set interfaces ge-1/0/2 unit 0 vlan-id 200 user@host# set interfaces ge-1/0/2 unit 0 family inet address 203.0.113.2/30
Verification
Verifying the Status of the Interfaces
Purpose
Verify the status of the Layer 2 and Layer 3 interfaces.
Action
To verify the status of the interfaces:
Verify the status of the physical ports.
user@host> show interfaces heth-0-0 statistics Physical interface: heth-0-0, Enabled, Physical link is Up Link-level type: Ethernet, Media type: Copper, MTU: 9192, Speed: 1Gbps, Duplex: Full-duplex, Auto-negotiation: Enabled Device flags : Present Running Current address: 00:00:5e:00:53:8d, Hardware address: 00:00:5e:00:53:8d Input packets : 272469 Output packets: 674 MAC statistics: Input bytes: 17438016, Input packets: 272469, Output bytes: 48658, Output packets: 674 VF statistics: VF Number: 0, PCI Address: 0000:02:10:1, Mapped to: ge-0/0/0 Input bytes: 17433984, Input packets: 272406, Output bytes: 48658, Output packets: 674, Multicast packets: 272406 VF Number: 1, PCI Address: 0000:02:10:5, Mapped to: ge-0/0/0 Input bytes: 0, Input packets: 0, Output bytes: 0, Output packets: 0, Multicast packets: 0 VF Number: 2, PCI Address: 0000:02:11:1, Mapped to: ge-0/0/0 Input bytes: 0, Input packets: 0, Output bytes: 0, Output packets: 0, Multicast packets: 0 VF Number: 3, PCI Address: 0000:02:11:5, Mapped to: ge-0/0/0 Input bytes: 0, Input packets: 0, Output bytes: 0, Output packets: 0, Multicast packets: 0Verify the status of the Layer 2 (ge-0/0/x) and Layer 3 (ge-1/0/x) interfaces.
user@host > show interfaces interface-name statistics
For example:
user@host > show interfaces ge-0/0/0 statistics Physical interface: ge-0/0/0, Enabled, Physical link is Up Interface index: 144, SNMP ifIndex: 518 Link-level type: Ethernet, MTU: 9192, LAN-PHY mode, Speed: 1000mbps, BPDU Error: None, Loop Detect PDU Error: None, Ethernet-Switching Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Flow control: Enabled Device flags : Present Running Interface flags: SNMP-Traps Internal: 0x4000 Link flags : None CoS queues : 8 supported, 8 maximum usable queues Current address: 00:00:5e:00:53:43, Hardware address: 00:00:5e:00:53:43 Last flapped : 2018-04-18 05:38:22 UTC (2d 10:07 ago) Statistics last cleared: Never Input rate : 0 bps (0 pps) Output rate : 0 bps (0 pps) Input errors: 0, Output errors: 0 Active alarms : None Active defects : None PCS statistics Seconds Bit errors 0 Errored blocks 0 Ethernet FEC statistics Errors FEC Corrected Errors 0 FEC Uncorrected Errors 0 FEC Corrected Errors Rate 0 FEC Uncorrected Errors Rate 0 PRBS Statistics : Disabled Interface transmit statistics: Disabled Logical interface ge-0/0/0.0 (Index 333) (SNMP ifIndex 524) Flags: Up SNMP-Traps 0x24024000 Encapsulation: Ethernet-Bridge Input packets : 147888 Output packets: 22 Protocol eth-switch, MTU: 9192 Flags: Is-Primary