一 运行VPP
启动
/usr/bin/vpp -c startup1.conf
运行VPP shell,进入
vpp
vppctl -s /run/vpp/cli-vpp1.sock
二 创建Interface
在 Linux 中,有一种接口调用“veth”。将“veth”接口视为具有两端(而不是一个)的接口。创建一个 veth 接口,一端名为vpp1out,另一端名为vpp1host
$ ip link add name vpp1out type veth peer name vpp1host
启动interface
$ ip link set dev vpp1out up $ ip link set dev vpp1host up
配置ip地址
$ ip addr add 10.10.1.1/24 dev vpp1host $ ip addr show vpp1host
# 删除接口ipv4地址vpp# set interface ip address del eth0 172.16.2.12/24# 删除接口ipv4 and ipv6vpp# set interface ip address del eth0 all
VPP创建interface(类型:host-interface,连接到vpp1out上),查看Interface已创建
vpp# create host-interface name vpp1outvpp# show hardware
VPP启动interface,查看interface状态(比
show hardware
多看到MTU)
vpp# set int state host-vpp1out up vpp# show int
VPP配置interface IP地址,查看interface的IP地址
vpp# set int ip address host-vpp1out 10.10.1.2/24vpp# show int addr
三 trace追踪包
VPP先查看记录,清除之前的记录
vpp# show tracevpp# clear trace
VPP设置trace过滤器(没用到)
vpp# trace filter <include NODE COUNT | exclude NODE COUNT | none>
VPP建立trace(指定追踪节点,追踪包数量)
vpp# trace add af-packet-input 10
linux ping或者vpp ping,查看trace
$ ping -c 1 10.10.1.2vpp# ping 10.10.1.1vpp# show trace
Packet 105:05:52:711808: af-packet-input af_packet: hw_if_index 1 next-index 4 tpacket2_hdr: status 0x20000001 len 98 snaplen 98 mac 66 net 80 sec 0x6205d002 nsec 0x5f8011d vlan 0 vlan_tpid 005:05:52:711853: ethernet-input IP4: f6:e3:e8:ef:9a:8d -> 02:fe:1b:ef:0a:d405:05:52:711863: ip4-input ICMP: 10.10.1.1 -> 10.10.2.2 tos 0x00, ttl 64, length 84, checksum 0x7d7f dscp CS0 ecn NON_ECN fragment id 0xa613, flags DONT_FRAGMENT ICMP echo_request checksum 0xfaed id 2189305:05:52:711873: ip4-lookup fib 0 dpo-idx 5 flow hash: 0x00000000 ICMP: 10.10.1.1 -> 10.10.2.2 tos 0x00, ttl 64, length 84, checksum 0x7d7f dscp CS0 ecn NON_ECN fragment id 0xa613, flags DONT_FRAGMENT ICMP echo_request checksum 0xfaed id 2189305:05:52:711883: ip4-rewrite tx_sw_if_index 2 dpo-idx 5 : ipv4 via 10.10.2.2 memif0/0: mtu:9000 next:4 02fe5f8a02f702fe42b3b6930800 flow hash: 0x00000000 00000000: 02fe5f8a02f702fe42b3b693080045000054a61340003f017e7f0a0a01010a0a 00000020: 02020800faed5585000102d0056200000000df86010000000000101105:05:52:711887: memif0/0-output memif0/0 IP4: 02:fe:42:b3:b6:93 -> 02:fe:5f:8a:02:f7 ICMP: 10.10.1.1 -> 10.10.2.2 tos 0x00, ttl 63, length 84, checksum 0x7e7f dscp CS0 ecn NON_ECN fragment id 0xa613, flags DONT_FRAGMENT ICMP echo_request checksum 0xfaed id 21893
# 抓1000个包,写入文件vppcapturepcap dispatch trace on max 1000 file vppcapture buffer-trace dpdk-input 1000pcap dispatch trace off
VPP查看ARP表(邻接表)
vpp# show ip neighborsTime IP4 Flags Ethernet Interface1101.5636 10.10.1.1 D e2:0f:1e:59:ec:f7 host-vpp1out
VPP查看路由表
vpp# show ip fib ipv4-VRF:0, fib_index:0, flow hash:[src dst sport dport proto ] locks:[src:plugin-hi:2, src:adjacency:1, src:default-route:1, ]0.0.0.0/0 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:1 buckets:1 uRPF:0 to:[0:0]] [0] [@0]: dpo-drop ip4 0.0.0.0/32 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:2 buckets:1 uRPF:1 to:[0:0]] [0] [@0]: dpo-drop ip4 10.10.1.0/32 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:10 buckets:1 uRPF:9 to:[0:0]] [0] [@0]: dpo-drop ip4 10.10.1.1/32 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:13 buckets:1 uRPF:12 to:[5:420] via:[2:168]] [0] [@5]: ipv4 via 10.10.1.1 host-vpp1out: mtu:9000 e20f1e59ecf702fed975d5b40800 10.10.1.0/24 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:9 buckets:1 uRPF:8 to:[0:0]] [0] [@4]: ipv4-glean: host-vpp1out: mtu:9000 ffffffffffff02fed975d5b40806 10.10.1.2/32 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:12 buckets:1 uRPF:13 to:[7:588]] [0] [@2]: dpo-receive: 10.10.1.2 on host-vpp1out 10.10.1.255/32 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:11 buckets:1 uRPF:11 to:[0:0]] [0] [@0]: dpo-drop ip4 224.0.0.0/4 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:4 buckets:1 uRPF:3 to:[0:0]] [0] [@0]: dpo-drop ip4 240.0.0.0/4 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:3 buckets:1 uRPF:2 to:[0:0]] [0] [@0]: dpo-drop ip4 255.255.255.255/32 unicast-ip4-chain[@0]: dpo-load-balance: [proto:ip4 index:5 buckets:1 uRPF:4 to:[0:0]] [0] [@0]: dpo-drop ip4
四 连接两个VPP
VPP1创建interface(类型:memif ;id ;角色:master)
vpp# create interface memif id 0 master
VPP1启动memif0/0,添加IP,查看interface
vpp# set int state memif0/0 up vpp# set int ip address memif0/0 10.10.2.1/24vpp# show intvpp# show int addr
VPP2创建interface(类型:memif ;id ;角色:slave)
vpp# create interface memif id 0 slave
VPP2启动memif0/0,添加IP,查看interface(除了IP,其他和VPP1一样)
vpp# set int ip address memif0/0 10.10.2.2/24
VPP1与2互相ping
vpp# ping 10.10.2.2vpp# ping 10.10.2.1
五 添加路由,拉通linux到VPP2(通过VPP1)
linux添加路由,目的地址是10.10.2.0/24,下一跳是10.10.1.2(vpp1)
$ ip route add 10.10.2.0/24 via 10.10.1.2 $ ip route
VPP2设置返回路由,目的地址是10.10.1.0/24,下一跳是10.10.2.1(vpp1)
vpp# ip route add 10.10.1.0/24 via 10.10.2.1
主机pingVPP2,trace追踪包
VPP1与VPP2之间用 memif driver,主机和VPP1之间用af-packet driver(Q:这两个是啥?)
要跟踪来自主机的数据包,使用af-packet-input;从vpp1到vpp2,使用memif-input。
# VPP1vpp# trace add af-packet-input 10# VPP2vpp# trace add memif-input 10# host ping vpp2$ ping 10.10.2.2# show tracevpp# show tracevpp# clear trace
六 switch
清除之前的配置
$ ps -ef | grep vpp | awk '{print $2}'| xargs sudo kill$ sudo ip link del dev vpp1host$ # do the next command if you are cleaning up from this example$ sudo ip link del dev vpp1vpp2
运行 FD.io VPP 实例
运行一个名为vpp1的 vpp 实例
$ /usr/bin/vpp -c startup1.conf $ vppctl -s /run/vpp/cli-vpp1.sock
$ /usr/bin/vpp -c startup2.conf $ vppctl -s /run/vpp/cli-vpp2.sock
将 vpp1 连接到主机
创建一个 veth,一端命名为 vpp1host,另一端命名为 vpp1out。
将 vpp1out 连接到 vpp1
在vpp1host上添加ip地址10.10.1.1/24
$ ip link add name vpp1out type veth peer name vpp1host $ ip link set dev vpp1out up $ ip link set dev vpp1host up $ ip addr add 10.10.1.1/24 dev vpp1host vpp# create host-interface name vpp1out host-vpp1out vpp# set int state host-vpp1out up
将 vpp1 连接到 vpp2
创建一个 veth,一端命名为 vpp1vpp2,另一端命名为 vpp2vpp1。
将 vpp1vpp2 连接到 vpp1。
将 vpp2vpp1 连接到 vpp2。
$ ip link add name vpp2vpp1 type veth peer name vpp1vpp2 $ ip link set dev vpp1vpp2 up $ ip link set dev vpp2vpp1 up
vpp# create host-interface name vpp1vpp2host-vpp1vpp2 vpp# set int state host-vpp1vpp2 up vpp# show bridge-domin
vpp# create host-interface name vpp2vpp1host-vpp2vpp1 vpp# set int state host-vpp2vpp1 up
在 vpp1 上配置网桥域
如果只有默认的0,创建bridge domain 1
vpp# show bridge-domainvpp# set int l2 bridge host-vpp1out 1vpp# set int l2 bridge host-vpp1vpp2 1vpp# show bridge-domain 1 detail BD-ID Index BSN Age(min) Learning U-Forwrd UU-Flood Flooding ARP-Term arp-ufwd BVI-Intf 1 1 off on on flood on off off N/A span-l2-input l2-input-classify l2-input-feat-arc l2-policer-classify l2-input-acl vpath-input-l2 l2-ip-qos-record l2-input-vtr l2-gbp-lpm-classify gbp-src-classify gbp-null-classify l2-gbp-lpm-anon-classify gbp-learn-l2 l2-emulation l2-learn l2-rw l2-fwd gbp-fwd l2-flood l2-flood l2-output Interface If-idx ISN SHG BVI TxFlood VLAN-Tag-Rewrite host-vpp1out 1 1 0 - * none host-vpp1vpp2 2 1 0 - * none
在 vpp2 上配置环回接口
vpp# create loopback interfaceloop0
vpp# set int ip address loop0 10.10.1.2/24 vpp# set int state loop0 up
在 vpp2 上配置网桥域
检查以查看第一个可用的网桥域 ID(在这种情况下为 1)将接口 loop0 作为网桥虚拟接口 (bvi) 添加到网桥域 1,将接口 vpp2vpp1 添加到桥接域 1
vpp# set int l2 bridge loop0 1 bvi vpp# set int l2 bridge host-vpp2vpp1 1
从主机 ping 到 vpp 和 vpp 到主机
在 vpp1 和 vpp2 上添加跟踪
从主机 ping 到 10.10.1.2
检查并清除 vpp1 和 vpp2 上的跟踪
vpp# show trace------------------- Start of thread 0 vpp_main ------------------- No packets in trace buffer vpp# clear tracevpp# trace add af-packet-input 10
vpp# show trace ------------------- Start of thread 0 vpp_main ------------------- Packet 100:37:05:332912: af-packet-input af_packet: hw_if_index 1 next-index 4 tpacket2_hdr: status 0x20000001 len 98 snaplen 98 mac 66 net 80 sec 0x6209b8f7 nsec 0x2c877061 vlan 0 vlan_tpid 000:37:05:332955: ethernet-input IP4: 12:9c:88:4f:ee:2d -> de:ad:00:00:00:0000:37:05:332963: l2-input l2-input: sw_if_index 1 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d [l2-learn l2-fwd l2-flood l2-flood ]00:37:05:332969: l2-learn l2-learn: sw_if_index 1 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d bd_index 100:37:05:332973: l2-fwd l2-fwd: sw_if_index 1 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d bd_index 1 result [0x1220000000002, 2] none00:37:05:332978: l2-output l2-output: sw_if_index 2 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d data 08 00 45 00 00 54 d5 9e 40 00 40 0100:37:05:332981: host-vpp1vpp2-output host-vpp1vpp2 IP4: 12:9c:88:4f:ee:2d -> de:ad:00:00:00:00 ICMP: 10.10.1.1 -> 10.10.1.2 tos 0x00, ttl 64, length 84, checksum 0x4ef4 dscp CS0 ecn NON_ECN fragment id 0xd59e, flags DONT_FRAGMENT ICMP echo_request checksum 0xbe0d id 23197Packet 200:37:05:333367: af-packet-input af_packet: hw_if_index 2 next-index 4 tpacket2_hdr: status 0x20000001 len 98 snaplen 98 mac 66 net 80 sec 0x6209b8f7 nsec 0x2c968233 vlan 0 vlan_tpid 000:37:05:333374: ethernet-input IP4: de:ad:00:00:00:00 -> 12:9c:88:4f:ee:2d00:37:05:333379: l2-input l2-input: sw_if_index 2 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 [l2-learn l2-fwd l2-flood l2-flood ]00:37:05:333383: l2-learn l2-learn: sw_if_index 2 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 bd_index 100:37:05:333385: l2-fwd l2-fwd: sw_if_index 2 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 bd_index 1 result [0x1220000000001, 1] none00:37:05:333387: l2-output l2-output: sw_if_index 1 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 data 08 00 45 00 00 54 87 9f 40 00 40 0100:37:05:333389: host-vpp1out-output host-vpp1out IP4: de:ad:00:00:00:00 -> 12:9c:88:4f:ee:2d ICMP: 10.10.1.2 -> 10.10.1.1 tos 0x00, ttl 64, length 84, checksum 0x9cf3 dscp CS0 ecn NON_ECN fragment id 0x879f, flags DONT_FRAGMENT ICMP echo_reply checksum 0xc60d id 23197vpp# show l2fib verbose Mac-Address BD-Idx If-Idx BSN-ISN Age(min) static filter bvi Interface-Name 56:dd:cb:23:8c:da 1 2 0/1 - - - - host-vpp1vpp2 de:ad:00:00:00:00 1 2 0/1 - - - - host-vpp1vpp2 12:9c:88:4f:ee:2d 1 1 0/1 - - - - host-vpp1out 8a:1f:7d:cb:0e:3f 1 1 0/1 - - - - host-vpp1out L2FIB total/learned entries: 4/4 Last scan time: 0.0000e0sec Learn limit: 16777216
vpp# show trace ------------------- Start of thread 0 vpp_main ------------------- Packet 100:36:04:423430: af-packet-input af_packet: hw_if_index 1 next-index 4 tpacket2_hdr: status 0x20000001 len 98 snaplen 98 mac 66 net 80 sec 0x6209b8f7 nsec 0x2c922ba5 vlan 0 vlan_tpid 000:36:04:423456: ethernet-input IP4: 12:9c:88:4f:ee:2d -> de:ad:00:00:00:0000:36:04:423466: l2-input l2-input: sw_if_index 1 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d [l2-learn l2-fwd l2-flood l2-flood ]00:36:04:423470: l2-learn l2-learn: sw_if_index 1 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d bd_index 100:36:04:423473: l2-fwd l2-fwd: sw_if_index 1 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d bd_index 1 result [0x700000002, 2] static age-not bvi 00:36:04:423479: ip4-input ICMP: 10.10.1.1 -> 10.10.1.2 tos 0x00, ttl 64, length 84, checksum 0x4ef4 dscp CS0 ecn NON_ECN fragment id 0xd59e, flags DONT_FRAGMENT ICMP echo_request checksum 0xbe0d id 2319700:36:04:423489: ip4-lookup fib 0 dpo-idx 7 flow hash: 0x00000000 ICMP: 10.10.1.1 -> 10.10.1.2 tos 0x00, ttl 64, length 84, checksum 0x4ef4 dscp CS0 ecn NON_ECN fragment id 0xd59e, flags DONT_FRAGMENT ICMP echo_request checksum 0xbe0d id 2319700:36:04:423512: ip4-local ICMP: 10.10.1.1 -> 10.10.1.2 tos 0x00, ttl 64, length 84, checksum 0x4ef4 dscp CS0 ecn NON_ECN fragment id 0xd59e, flags DONT_FRAGMENT ICMP echo_request checksum 0xbe0d id 2319700:36:04:423518: ip4-icmp-input ICMP: 10.10.1.1 -> 10.10.1.2 tos 0x00, ttl 64, length 84, checksum 0x4ef4 dscp CS0 ecn NON_ECN fragment id 0xd59e, flags DONT_FRAGMENT ICMP echo_request checksum 0xbe0d id 2319700:36:04:423522: ip4-icmp-echo-request ICMP: 10.10.1.1 -> 10.10.1.2 tos 0x00, ttl 64, length 84, checksum 0x4ef4 dscp CS0 ecn NON_ECN fragment id 0xd59e, flags DONT_FRAGMENT ICMP echo_request checksum 0xbe0d id 2319700:36:04:423529: ip4-load-balance fib 0 dpo-idx 2 flow hash: 0x00000000 ICMP: 10.10.1.2 -> 10.10.1.1 tos 0x00, ttl 64, length 84, checksum 0x9cf3 dscp CS0 ecn NON_ECN fragment id 0x879f, flags DONT_FRAGMENT ICMP echo_reply checksum 0xc60d id 2319700:36:04:423532: ip4-rewrite tx_sw_if_index 2 dpo-idx 2 : ipv4 via 10.10.1.1 loop0: mtu:9000 next:3 129c884fee2ddead000000000800 flow hash: 0x00000000 00000000: 129c884fee2ddead00000000080045000054879f400040019cf30a0a01020a0a 00000020: 01010000c60d5a9d0001f7b809620000000014660b0000000000101100:36:04:423536: loop0-output loop0 IP4: de:ad:00:00:00:00 -> 12:9c:88:4f:ee:2d ICMP: 10.10.1.2 -> 10.10.1.1 tos 0x00, ttl 64, length 84, checksum 0x9cf3 dscp CS0 ecn NON_ECN00 00000000: 129c884fee2ddead00000000080045000054879f400040019cf30a0a01020a0a 00000020: 01010000c60d5a9d0001f7b809620000000014660b0000000000101100:36:04:423536: loop0-output loop0 IP4: de:ad:00:00:00:00 -> 12:9c:88:4f:ee:2d ICMP: 10.10.1.2 -> 10.10.1.1 tos 0x00, ttl 64, length 84, checksum 0x9cf3 dscp CS0 ecn NON_ECN fragment id 0x879f, flags DONT_FRAGMENT ICMP echo_reply checksum 0xc60d id 2319700:36:04:423544: l2-input l2-input: sw_if_index 2 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 [l2-fwd l2-flood l2-flood ]00:36:04:423546: l2-fwd l2-fwd: sw_if_index 2 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 bd_index 1 result [0x1210000000001, 1] none00:36:04:423547: l2-output l2-output: sw_if_index 1 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 data 08 00 45 00 00 54 87 9f 40 00 40 0100:36:04:423550: host-vpp2vpp1-output host-vpp2vpp1 IP4: de:ad:00:00:00:00 -> 12:9c:88:4f:ee:2d ICMP: 10.10.1.2 -> 10.10.1.1 tos 0x00, ttl 64, length 84, checksum 0x9cf3 dscp CS0 ecn NON_ECN fragment id 0x879f, flags DONT_FRAGMENT ICMP echo_reply checksum 0xc60d id 23197Packet 200:36:09:639349: af-packet-input af_packet: hw_if_index 1 next-index 4 tpacket2_hdr: status 0x20000001 len 42 snaplen 42 mac 66 net 80 sec 0x6209b8fc nsec 0x397195c8 vlan 0 vlan_tpid 000:36:09:639370: ethernet-input ARP: 12:9c:88:4f:ee:2d -> de:ad:00:00:00:0000:36:09:639381: l2-input l2-input: sw_if_index 1 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d [l2-learn l2-fwd l2-flood l2-flood ]00:36:09:639386: l2-learn l2-learn: sw_if_index 1 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d bd_index 100:36:09:639390: l2-fwd l2-fwd: sw_if_index 1 dst de:ad:00:00:00:00 src 12:9c:88:4f:ee:2d bd_index 1 result [0x700000002, 2] static age-not b vi 00:36:09:639398: arp-input request, type ethernet/IP4, address size 6/4 12:9c:88:4f:ee:2d/10.10.1.1 -> 00:00:00:00:00:00/10.10.1.200:36:09:639402: arp-reply request, type ethernet/IP4, address size 6/4 12:9c:88:4f:ee:2d/10.10.1.1 -> 00:00:00:00:00:00/10.10.1.200:36:09:639443: loop0-output loop0 ARP: de:ad:00:00:00:00 -> 12:9c:88:4f:ee:2d reply, type ethernet/IP4, address size 6/4 de:ad:00:00:00:00/10.10.1.2 -> 12:9c:88:4f:ee:2d/10.10.1.100:36:09:639450: l2-input l2-input: sw_if_index 2 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 [l2-fwd l2-flood l2-flood ]00:36:09:639453: l2-fwd l2-fwd: sw_if_index 2 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 bd_index 1 result [0x1210000000001, 1] none00:36:09:639455: l2-output l2-output: sw_if_index 1 dst 12:9c:88:4f:ee:2d src de:ad:00:00:00:00 data 08 06 00 01 08 00 06 04 00 02 de ad00:36:09:639458: host-vpp2vpp1-output host-vpp2vpp1 ARP: de:ad:00:00:00:00 -> 12:9c:88:4f:ee:2d reply, type ethernet/IP4, address size 6/4 de:ad:00:00:00:00/10.10.1.2 -> 12:9c:88:4f:ee:2d/10.10.1.1vpp# show l2fib verbose Mac-Address BD-Idx If-Idx BSN-ISN Age(min) static filter bvi Interface-Name de:ad:00:00:00:00 1 2 0/0 no * - * loop0 12:9c:88:4f:ee:2d 1 1 0/1 - - - - host-vpp2vpp1 8a:1f:7d:cb:0e:3f 1 1 0/1 - - - - host-vpp2vpp1 L2FIB total/learned entries: 3/2 Last scan time: 0.0000e0sec Learn limit: 16777216
从 vpp2 ping 到 10.10.1.1
检查并清除 vpp1 和 vpp2 上的跟踪
vpp1
vpp# show l2fib verbose Mac-Address BD-Idx If-Idx BSN-ISN Age(min) static filter bvi Interface-Name 56:dd:cb:23:8c:da 1 2 0/1 - - - - host-vpp1vpp2 4e:db:02:b3:65:58 1 2 0/1 - - - - host-vpp1vpp2 de:ad:00:00:00:00 1 2 0/1 - - - - host-vpp1vpp2 12:9c:88:4f:ee:2d 1 1 0/1 - - - - host-vpp1out 8a:1f:7d:cb:0e:3f 1 1 0/1 - - - - host-vpp1out L2FIB total/learned entries: 5/5 Last scan time: 0.0000e0sec Learn limit: 16777216
vpp# show l2fib verbose Mac-Address BD-Idx If-Idx BSN-ISN Age(min) static filter bvi Interface-Name 56:dd:cb:23:8c:da 1 1 0/1 - - - - host-vpp2vpp1 4e:db:02:b3:65:58 1 1 0/1 - - - - host-vpp2vpp1 de:ad:00:00:00:00 1 2 0/0 no * - * loop0 12:9c:88:4f:ee:2d 1 1 0/1 - - - - host-vpp2vpp1 8a:1f:7d:cb:0e:3f 1 1 0/1 - - - - host-vpp2vpp1 L2FIB total/learned entries: 5/4 Last scan time: 0.0000e0sec Learn limit: 16777216
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