Cisco VPP vxlan tunnel
原文地址：https://blog.csdn.net/u010827484/article/details/81813655
拓扑环境
目的： 使用vxlan隧道连接两个主机，实现每个主机的内部网络可以通过vxlan隧道进行通信。
host1内部运行vpp和一个网络命名空间APP1。网络命令空间APP1模拟host1端的内部网络，里面有一个网络接口veth_vpp1，这个接口与vpp之间使用veth方式连接，当vpp里面的host-APP1接口收到数据包后就会发送到网络命名空间的veth_vpp1接口。host1的vpp启动一个接口GigabitEthernet0/9/0用于和对端的vpp连接网络通道，vxlan隧道就是使用这个接口传输数据。host2是一样的环境，host1和host2之间使用桥接模式联网。
接口IP地址：
- host1：
GigabitEthernet0/9/0：1.1.1.1/24
vxlan-tunnel0：src：1.1.1.1 dst：1.1.1.2
host-APP1：可以不用配置
veth_vpp1：2.2.2.1/24
- host2：
GigabitEthernet0/9/0：1.1.1.2/24
vxlan-tunnel0：src：1.1.1.2 dst：1.1.1.1
host-APP2：可以不用配置
veth_vpp2：2.2.2.2/24
配置host1：
配置host1网络命名空间
vagrant@classifier1:~$ sudo ip netns add APP1 #创建命名空间APP1
vagrant@classifier1:~$ sudo ip link add name veth_app1 type veth peer name APP1 #创建veth接口对（APP1与veth_app1是成对的veth接口）
vagrant@classifier1:~$ sudo ip link set dev APP1 up #使能APP1接口
vagrant@classifier1:~$ sudo ip link set dev veth_app1 up netns APP1 #添加veth_app1接口到APP1命名空间
vagrant@classifier1:~$ sudo ip netns exec APP1 \ #配置APP1命名空间的接口
> bash -c "
> ip link set dev lo up
> ip addr add 2.2.2.1/24 dev veth_app1
> "
vagrant@classifier1:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 08:00:27:d8:18:42 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::a00:27ff:fed8:1842/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 08:00:27:4c:60:10 brd ff:ff:ff:ff:ff:ff
inet 192.168.60.10/24 brd 192.168.60.255 scope global eth1
valid_lft forever preferred_lft forever
inet6 fe80::a00:27ff:fe4c:6010/64 scope link
valid_lft forever preferred_lft forever
15: APP1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether ea:22:8c:69:ba:7f brd ff:ff:ff:ff:ff:ff
inet6 fe80::e822:8cff:fe69:ba7f/64 scope link
valid_lft forever preferred_lft forever
vagrant@classifier1:~$ sudo ip netns exec APP1 ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
16: veth_app1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 8e:21:fc:da:86:7f brd ff:ff:ff:ff:ff:ff
inet 2.2.2.1/24 scope global veth_app1
valid_lft forever preferred_lft forever
inet6 fe80::8c21:fcff:feda:867f/64 scope link
valid_lft forever preferred_lft forever
vagrant@classifier1:~$ 配置host1 vpp:
vagrant@classifier1:~$ vppctl show int
Name Idx State Counter Count
GigabitEthernet0/9/0 1 down
local0 0 down
vagrant@classifier1:~$ vppctl set int state GigabitEthernet0/9/0 up #使能GigabitEthernet0/9/0接口
vagrant@classifier1:~$ vppctl set int ip addr GigabitEthernet0/9/0 1.1.1.1/24 #设置GigabitEthernet0/9/0接口IP地址
vagrant@classifier1:~$ vppctl create vxlan tunnel src 1.1.1.1 dst 1.1.1.2 vni 10 #创建vxlan隧道，sec填本地GigabitEthernet0/9/0接口地址，dst填对端GigabitEthernet0/9/0接口地址
vxlan_tunnel0
vagrant@classifier1:~$ vppctl set int l2 bridge vxlan_tunnel0 1 #添加vxlan隧道到1号桥
vagrant@classifier1:~$ vppctl set int state vxlan_tunnel0 up #使能vxlan隧道
vagrant@classifier1:~$ vppctl create host-interface name APP1 #创建host接口，host-APP1相当于宿主机的APP1接口，这样在vpp里面host-APP1接口的数据都回到APP1命名空间的veth_app1接口
host-APP1
vagrant@classifier1:~$ vppctl set int state host-APP1 up #使能host_APP1接口
vagrant@classifier1:~$ vppctl set int l2 bridge host-APP1 1 #添加host-APP1接口到1号桥
vagrant@classifier1:~$ vppctl show int
Name Idx State Counter Count
GigabitEthernet0/9/0 1 up rx packets 2
rx bytes 120
tx packets 1
tx bytes 42
drops 2
host-APP1 3 up
local0 0 down
vxlan_tunnel0 2 up
vagrant@classifier1:~$ vppctl show int addr
GigabitEthernet0/9/0 (up):
1.1.1.1/24
host-APP1 (up):
l2 bridge bd_id 1 shg 0
local0 (dn):
vxlan_tunnel0 (up):
l2 bridge bd_id 1 shg 0
vagrant@classifier1:~$ vppctl show vxlan tunnel
[0] src 1.1.1.1 dst 1.1.1.2 vni 10 sw_if_index 2 encap_fib_index 0 fib_entry_index 13 decap_next l2
vagrant@classifier1:~$ vppctl show bridge 1 detail
ID Index Learning U-Forwrd UU-Flood Flooding ARP-Term BVI-Intf
1 1 on on on on off N/A
Interface Index SHG BVI TxFlood VLAN-Tag-Rewrite
host-APP1 3 0 - * none
vxlan_tunnel0 2 0 - * none
vagrant@classifier1:~$ 配置host2：
vagrant@classifier2:~$ sudo ip netns add APP2
vagrant@classifier2:~$ sudo ip link add name veth_app2 type veth peer name APP2
vagrant@classifier2:~$ sudo ip link set dev APP2 up
vagrant@classifier2:~$ sudo ip link set dev veth_app2 up netns APP2
vagrant@classifier2:~$ sudo ip netns exec APP2 \
> bash -c "
> ip link set dev lo up
> ip addr add 2.2.2.2/24 dev veth_app2
> "
vagrant@classifier2:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 08:00:27:d8:18:42 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::a00:27ff:fed8:1842/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 08:00:27:4c:60:60 brd ff:ff:ff:ff:ff:ff
inet 192.168.60.60/24 brd 192.168.60.255 scope global eth1
valid_lft forever preferred_lft forever
inet6 fe80::a00:27ff:fe4c:6060/64 scope link
valid_lft forever preferred_lft forever
5: veth-br: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 2e:a0:f9:13:d7:d3 brd ff:ff:ff:ff:ff:ff
inet6 fe80::2ca0:f9ff:fe13:d7d3/64 scope link
valid_lft forever preferred_lft forever
11: APP2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether e2:6c:95:d5:e0:87 brd ff:ff:ff:ff:ff:ff
inet6 fe80::e06c:95ff:fed5:e087/64 scope link
valid_lft forever preferred_lft forever
vagrant@classifier2:~$ sudo ip netns exec APP2 ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
12: veth_app2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether b6:5c:a2:b9:47:c8 brd ff:ff:ff:ff:ff:ff
inet 2.2.2.2/24 scope global veth_app2
valid_lft forever preferred_lft forever
inet6 fe80::b45c:a2ff:feb9:47c8/64 scope link
valid_lft forever preferred_lft forever
vagrant@classifier2:~$ vppctl show int
Name Idx State Counter Count
GigabitEthernet0/9/0 1 down
local0 0 down
vagrant@classifier2:~$ vppctl set int state GigabitEthernet0/9/0 up
vagrant@classifier2:~$ vppctl set int ip addr GigabitEthernet0/9/0 1.1.1.2/24
vagrant@classifier2:~$ vppctl create vxlan tunnel src 1.1.1.2 dst 1.1.1.1 vni 10
vxlan_tunnel0
vagrant@classifier2:~$ vppctl set int l2 bridge vxlan_tunnel0 1
vagrant@classifier2:~$ vppctl set int state vxlan_tunnel0 up
vagrant@classifier2:~$ vppctl create host-interface name APP2
host-APP2
vagrant@classifier2:~$ vppctl set int state host-APP2 up
vagrant@classifier2:~$ vppctl set int l2 bridge host-APP2 1
vagrant@classifier2:~$ vppctl show int
Name Idx State Counter Count
GigabitEthernet0/9/0 1 up rx packets 2
rx bytes 120
tx packets 1
tx bytes 42
drops 2
host-APP2 3 up
local0 0 down
vxlan_tunnel0 2 up
vagrant@classifier2:~$ vppctl show int addr
GigabitEthernet0/9/0 (up):
1.1.1.2/24
host-APP2 (up):
l2 bridge bd_id 1 shg 0
local0 (dn):
vxlan_tunnel0 (up):
l2 bridge bd_id 1 shg 0
vagrant@classifier2:~$ vppctl show vxlan tunnel
[0] src 1.1.1.2 dst 1.1.1.1 vni 10 sw_if_index 2 encap_fib_index 0 fib_entry_index 13 decap_next l2
vagrant@classifier2:~$ vppctl show bridge 1 detail
ID Index Learning U-Forwrd UU-Flood Flooding ARP-Term BVI-Intf
1 1 on on on on off N/A
Interface Index SHG BVI TxFlood VLAN-Tag-Rewrite
host-APP2 3 0 - * none
vxlan_tunnel0 2 0 - * none
vagrant@classifier2:~$ host1 APP1命名空间ping host2 APP2命名空间:
vagrant@classifier1:~$ sudo ip netns exec APP1 ping 2.2.2.2
PING 2.2.2.2 (2.2.2.2) 56(84) bytes of data.
64 bytes from 2.2.2.2: icmp_seq=1 ttl=64 time=0.622 ms
64 bytes from 2.2.2.2: icmp_seq=2 ttl=64 time=0.417 ms
64 bytes from 2.2.2.2: icmp_seq=3 ttl=64 time=0.410 ms
64 bytes from 2.2.2.2: icmp_seq=4 ttl=64 time=0.398 ms
64 bytes from 2.2.2.2: icmp_seq=5 ttl=64 time=0.388 ms
host2抓包验证：
vagrant@classifier2:~$ vppctl clear trace
vagrant@classifier2:~$ vppctl trace add dpdk-input 5
vagrant@classifier2:~$ vppctl show trace
------------------- Start of thread 0 vpp_main -------------------
Packet 1
00:04:15:400275: dpdk-input
GigabitEthernet0/9/0 rx queue 0
buffer 0x9b67: current data 14, length 134, free-list 0, totlen-nifb 0, trace 0x0
PKT MBUF: port 0, nb_segs 1, pkt_len 148
buf_len 2176, data_len 148, ol_flags 0x0, data_off 128, phys_addr 0x852330c0
packet_type 0x0
IP4: 08:00:27:4c:70:10 -> 08:00:27:4c:70:60
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:15:400324: ip4-input
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:15:400348: ip4-lookup
fib 0 dpo-idx 5 flow hash: 0x00000000
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:15:400355: ip4-local
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:15:400359: ip4-udp-lookup
UDP: src-port 28760 dst-port 4789
00:04:15:400364: vxlan4-input
VXLAN decap from vxlan_tunnel0 vni 10 next 1 error 0
00:04:15:400369: l2-input
l2-input: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:15:400385: l2-learn
l2-learn: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:15:400394: l2-fwd
l2-fwd: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:15:400397: l2-output
l2-output: sw_if_index 3 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:15:400402: host-APP2-output
host-APP2
IP4: 8e:21:fc:da:86:7f -> b6:5c:a2:b9:47:c8
ICMP: 2.2.2.1 -> 2.2.2.2
tos 0x00, ttl 64, length 84, checksum 0x3841
fragment id 0xfa61, flags DONT_FRAGMENT
ICMP echo_request checksum 0xfff6
Packet 2
00:04:16:399562: dpdk-input
GigabitEthernet0/9/0 rx queue 0
buffer 0x9b40: current data 14, length 134, free-list 0, totlen-nifb 0, trace 0x1
PKT MBUF: port 0, nb_segs 1, pkt_len 148
buf_len 2176, data_len 148, ol_flags 0x0, data_off 128, phys_addr 0x85232700
packet_type 0x0
IP4: 08:00:27:4c:70:10 -> 08:00:27:4c:70:60
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:16:399596: ip4-input
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:16:399611: ip4-lookup
fib 0 dpo-idx 5 flow hash: 0x00000000
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:16:399614: ip4-local
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:16:399617: ip4-udp-lookup
UDP: src-port 28760 dst-port 4789
00:04:16:399619: vxlan4-input
VXLAN decap from vxlan_tunnel0 vni 10 next 1 error 0
00:04:16:399622: l2-input
l2-input: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:16:399635: l2-learn
l2-learn: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:16:399640: l2-fwd
l2-fwd: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:16:399643: l2-output
l2-output: sw_if_index 3 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:16:399646: host-APP2-output
host-APP2
IP4: 8e:21:fc:da:86:7f -> b6:5c:a2:b9:47:c8
ICMP: 2.2.2.1 -> 2.2.2.2
tos 0x00, ttl 64, length 84, checksum 0x378e
fragment id 0xfb14, flags DONT_FRAGMENT
ICMP echo_request checksum 0xe2f9
Packet 3
00:04:17:398536: dpdk-input
GigabitEthernet0/9/0 rx queue 0
buffer 0x9b19: current data 14, length 134, free-list 0, totlen-nifb 0, trace 0x2
PKT MBUF: port 0, nb_segs 1, pkt_len 148
buf_len 2176, data_len 148, ol_flags 0x0, data_off 128, phys_addr 0x85231d40
packet_type 0x0
IP4: 08:00:27:4c:70:10 -> 08:00:27:4c:70:60
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:17:398566: ip4-input
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:17:398584: ip4-lookup
fib 0 dpo-idx 5 flow hash: 0x00000000
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:17:398587: ip4-local
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:17:398591: ip4-udp-lookup
UDP: src-port 28760 dst-port 4789
00:04:17:398594: vxlan4-input
VXLAN decap from vxlan_tunnel0 vni 10 next 1 error 0
00:04:17:398597: l2-input
l2-input: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:17:398608: l2-learn
l2-learn: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:17:398613: l2-fwd
l2-fwd: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:17:398616: l2-output
l2-output: sw_if_index 3 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:17:398619: host-APP2-output
host-APP2
IP4: 8e:21:fc:da:86:7f -> b6:5c:a2:b9:47:c8
ICMP: 2.2.2.1 -> 2.2.2.2
tos 0x00, ttl 64, length 84, checksum 0x3756
fragment id 0xfb4c, flags DONT_FRAGMENT
ICMP echo_request checksum 0x17fb
Packet 4
00:04:18:398807: dpdk-input
GigabitEthernet0/9/0 rx queue 0
buffer 0x9af2: current data 14, length 134, free-list 0, totlen-nifb 0, trace 0x3
PKT MBUF: port 0, nb_segs 1, pkt_len 148
buf_len 2176, data_len 148, ol_flags 0x0, data_off 128, phys_addr 0x85231380
packet_type 0x0
IP4: 08:00:27:4c:70:10 -> 08:00:27:4c:70:60
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:18:398842: ip4-input
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:18:398854: ip4-lookup
fib 0 dpo-idx 5 flow hash: 0x00000000
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:18:398857: ip4-local
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:18:398859: ip4-udp-lookup
UDP: src-port 28760 dst-port 4789
00:04:18:398861: vxlan4-input
VXLAN decap from vxlan_tunnel0 vni 10 next 1 error 0
00:04:18:398865: l2-input
l2-input: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:18:398881: l2-learn
l2-learn: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:18:398886: l2-fwd
l2-fwd: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:18:398889: l2-output
l2-output: sw_if_index 3 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:18:398891: host-APP2-output
host-APP2
IP4: 8e:21:fc:da:86:7f -> b6:5c:a2:b9:47:c8
ICMP: 2.2.2.1 -> 2.2.2.2
tos 0x00, ttl 64, length 84, checksum 0x3723
fragment id 0xfb7f, flags DONT_FRAGMENT
ICMP echo_request checksum 0x10fa
Packet 5
00:04:19:398974: dpdk-input
GigabitEthernet0/9/0 rx queue 0
buffer 0x9acb: current data 14, length 134, free-list 0, totlen-nifb 0, trace 0x4
PKT MBUF: port 0, nb_segs 1, pkt_len 148
buf_len 2176, data_len 148, ol_flags 0x0, data_off 128, phys_addr 0x852309c0
packet_type 0x0
IP4: 08:00:27:4c:70:10 -> 08:00:27:4c:70:60
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:19:399000: ip4-input
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:19:399014: ip4-lookup
fib 0 dpo-idx 5 flow hash: 0x00000000
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:19:399017: ip4-local
UDP: 1.1.1.1 -> 1.1.1.2
tos 0x00, ttl 253, length 134, checksum 0xb962
fragment id 0x0000
UDP: 28760 -> 4789
length 114, checksum 0x0000
00:04:19:399019: ip4-udp-lookup
UDP: src-port 28760 dst-port 4789
00:04:19:399023: vxlan4-input
VXLAN decap from vxlan_tunnel0 vni 10 next 1 error 0
00:04:19:399026: l2-input
l2-input: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:19:399038: l2-learn
l2-learn: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:19:399042: l2-fwd
l2-fwd: sw_if_index 2 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f bd_index 1
00:04:19:399045: l2-output
l2-output: sw_if_index 3 dst b6:5c:a2:b9:47:c8 src 8e:21:fc:da:86:7f
00:04:19:399047: host-APP2-output
host-APP2
IP4: 8e:21:fc:da:86:7f -> b6:5c:a2:b9:47:c8
ICMP: 2.2.2.1 -> 2.2.2.2
tos 0x00, ttl 64, length 84, checksum 0x362c
fragment id 0xfc76, flags DONT_FRAGMENT
ICMP echo_request checksum 0xdf9
vagrant@classifier2:~$