NSH SFC/Build, Install, and Test Images

1. Build A VPP Package

Please follow below link to build a VPP package:

 https://wiki.fd.io/view/VPP/Build,_install,_and_test_images

2. Clone Code and Build NSH_SFC Plugin

Step 1) Clone Code:

 git clone https://gerrit.fd.io/r/nsh_sfc
 

Step 2) Build NSH_SFC Plugin:

 cd nsh_sfc/nsh-plugin/
 rm -fr build
 ./build.sh

Step 3) Start VPP:

 systemctl start vpp

Step 4) Check NSH_SFC plugins is loaded:

 show plugins

3. Configure NSH_SFC as a SFF

Step 1) Configure two physical interfaces:

 set int state TenGigabitEthernet5/0/0 up
 set int ip table TenGigabitEthernet5/0/0 0
 set int ip address TenGigabitEthernet5/0/0 192.168.50.72/24
 
 set int state TenGigabitEthernet5/0/1 up
 set int ip table TenGigabitEthernet5/0/1 0
 set int ip address TenGigabitEthernet5/0/1 192.168.50.73/24
 
 ip route add 192.168.50.74/24 via 192.168.50.73
 set ip arp TenGigabitEthernet5/0/1 192.168.50.74 02fe.8629.b438

Step 2) Create two VxLAN-GPE tunnels:

 create vxlan-gpe tunnel local 192.168.50.72 remote 192.168.50.71 vni 9 next-nsh encap-vrf-id 0 decap-vrf-id 0
 create vxlan-gpe tunnel local 192.168.50.73 remote 192.168.50.74 vni 9 next-nsh encap-vrf-id 0 decap-vrf-id 0

Step 3) Create two NSH entries and One NSH map:

 create nsh entry nsp 185 nsi 255 md-type 1 c1 1 c2 2 c3 3 c4 4 next-ethernet
 create nsh entry nsp 185 nsi 254 md-type 1 c1 11 c2 12 c3 13 c4 14 next-ethernet
 create nsh map nsp 185 nsi 255 mapped-nsp 185 mapped-nsi 254 nsh_action swap encap-vxlan-gpe-intf 4

4. Test SFF

 Send NSH packets with transport layer VxLAN-GPE to TenGigabitEthernet5/0/0 to see if SFF works.
 
 Please refer to https://wiki.fd.io/view/NSH_SFC/Docs/Designs for design and unit test output.