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更多有关于 “ H3C 实验 ” 的文章，请点击这里。
实验环境：
操作系统：Windows 7 专业版（当时最新正式版），模拟器：HCL 2.1.1（当时最新版本）
- 路由器的型号是：H3C MSR36-20
- 交换机的型号是：H3C S5820V2-54QS-GE
实验需求：
- 在 CORE1 和 CORE2 之间配置 IRF ，采用 BFD MAD 多冲突检测，如需详细了解 BFD MAD 的配置步骤请点击这里；
- CORE1 的 GE 0/10 和 CORE2 的 GE 0/10 将作为 BFD MAD 的检测线路；
- 为方便做实验，SERVER1 和 SERVER2 采用路由器来模拟；
- VLAN 10 用于外网，网关为 1.1.2.1 ，网段为 1.1.2.0/24 ；
- VLAN 20 用于内网，网关为 10.0.0.1 ，网段为 10.0.0.0/16 ；
- 无论是内网还是外网，要求 SERVER1 和 SERVER2 之间能互相 ping 通；
- 要求 SERVER1 和 SERVER2 能 ping 通 8.8.8.8 。
实验步骤：
我们先来配置 CORE1 和 CORE2 的 IRF ：
CORE1 ： sys hostname CORE1 # 配置 IRF 域编号 irf domain 10 # 成员编号默认是 1，无需配置，也无需重启 # 进入 IRF 物理端口视图，并关闭端口 int range ten 1/0/51 ten 1/0/52 shutdown quit # 进入 IRF 端口视图，在 IRF 成员 1 上创建 IRF 逻辑端口 1 irf-port 1/1 port group interface Ten-GigabitEthernet 1/0/51 port group interface Ten-GigabitEthernet 1/0/52 quit # 进入 IRF 物理端口视图，激活端口 int range ten 1/0/51 ten 1/0/52 undo shutdown quit
CORE2 ： sys hostname CORE2 # 配置 IRF 域编号 irf domain 10 # 配置成员编号 irf member 1 renumber 2 y # 保存配置并重启设备 save y quit reboot y
CORE2 重启完成后，再接着配置 CORE2 ：
CORE2 ： # 进入 IRF 物理端口视图，并关闭端口 sys int range ten 2/0/51 ten 2/0/52 shutdown quit # 进入 IRF 端口视图，在 IRF 成员 2 上创建 IRF 逻辑端口 2 irf-port 2/2 port group interface Ten-GigabitEthernet 2/0/51 port group interface Ten-GigabitEthernet 2/0/52 quit # 进入 IRF 物理端口视图，激活端口 int range ten 2/0/51 ten 2/0/52 undo shutdown quit # 配置成员优先级 irf member 2 priority 2
最后两台 SW 一起激活 IRF 的逻辑端口：
CORE1 ： irf-port-configuration active # 保存当前配置 # CORE1 这里必须要保存配置，因为 IRF 聚合后是要重启设备的（ CORE2 才是 Master ） save y CORE2 ： irf-port-configuration active
此时 CORE2 会成为 Master（因为 CORE2 的成员优先级比 CORE1 大），CORE1 作为 Slave 会自动重启。
接着我们配置 BFD MAD ：
CORE2 ： interface Route-Aggregation1 mad bfd enable mad ip address 192.168.0.1 255.255.255.252 member 1 mad ip address 192.168.0.2 255.255.255.252 member 2 int ran g 1/0/10 g 2/0/10 shutdown port link-mode route port link-aggregation group 1 undo shutdown
现在可以看到 BFD MAD 已经开启了：
[CORE2]dis mad verbose Multi-active recovery state: No Excluded ports (user-configured): Excluded ports (system-configured): Ten-GigabitEthernet1/0/51 Ten-GigabitEthernet1/0/52 Ten-GigabitEthernet2/0/51 Ten-GigabitEthernet2/0/52 MAD ARP disabled. MAD ND disabled. MAD LACP disabled. MAD BFD enabled interface: Route-Aggregation1 MAD status : Normal Member ID MAD IP address Neighbor MAD status 1 192.168.0.1/30 2 Normal 2 192.168.0.2/30 1 Normal [CORE2]
接着我们配置 CORE2 与 ISP 之间的链路，这里有两种配置方式：
- 一种是将接口直接划为三层口，将 IP 地址直接配置在三层口下；
- 另一种是配置 SVI 接口，将 IP 地址配置在 SVI 接口下，并将该物理接口划为该 VLAN 的 access 口。
XGE_0/49 接口 Ricky 打算采用第一种方式，而 XGE_0/50 接口 Ricky 打算采用第二种方式。
CORE2 ： interface Ten-GigabitEthernet1/0/49 port link-mode route ip address 1.1.1.2 255.255.255.252 vlan 100 port Ten-GigabitEthernet 2/0/50 int vlan 100 ip address 1.1.1.6 255.255.255.252
接着我们配置 ISP ：
ISP ： sys hostname ISP interface Ten-GigabitEthernet1/0/49 port link-mode route ip address 1.1.1.1 255.255.255.252 interface Ten-GigabitEthernet1/0/50 port link-mode route ip address 1.1.1.5 255.255.255.252 int LoopBack 8 ip address 8.8.8.8 255.255.255.255 ip route-static 1.1.2.0 255.255.255.0 1.1.1.2 ip route-static 1.1.2.0 255.255.255.0 1.1.1.6
现在在 ISP 上是可以 ping 通 1.1.1.2 和 1.1.1.6 的：
[ISP]ping 1.1.1.2 Ping 1.1.1.2 (1.1.1.2): 56 data bytes, press CTRL_C to break 56 bytes from 1.1.1.2: icmp_seq=0 ttl=255 time=2.000 ms 56 bytes from 1.1.1.2: icmp_seq=1 ttl=255 time=1.000 ms 56 bytes from 1.1.1.2: icmp_seq=2 ttl=255 time=1.000 ms 56 bytes from 1.1.1.2: icmp_seq=3 ttl=255 time=0.000 ms 56 bytes from 1.1.1.2: icmp_seq=4 ttl=255 time=0.000 ms --- Ping statistics for 1.1.1.2 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 0.000/0.800/2.000/0.748 ms [ISP]%Jul 5 15:56:35:306 2019 ISP PING/6/PING_STATISTICS: Ping statistics for 1.1.1.2: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 0.000/0.800/2.000/0.748 ms. [ISP] [ISP]ping 1.1.1.6 Ping 1.1.1.6 (1.1.1.6): 56 data bytes, press CTRL_C to break 56 bytes from 1.1.1.6: icmp_seq=0 ttl=255 time=2.000 ms 56 bytes from 1.1.1.6: icmp_seq=1 ttl=255 time=0.000 ms 56 bytes from 1.1.1.6: icmp_seq=2 ttl=255 time=1.000 ms 56 bytes from 1.1.1.6: icmp_seq=3 ttl=255 time=0.000 ms 56 bytes from 1.1.1.6: icmp_seq=4 ttl=255 time=1.000 ms --- Ping statistics for 1.1.1.6 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 0.000/0.800/2.000/0.748 ms [ISP]%Jul 5 15:56:39:950 2019 ISP PING/6/PING_STATISTICS: Ping statistics for 1.1.1.6: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 0.000/0.800/2.000/0.748 ms. [ISP]
在 CORE2 上 ping ISP 自然也是没有问题：
[CORE2]ping 1.1.1.1 Ping 1.1.1.1 (1.1.1.1): 56 data bytes, press CTRL_C to break 56 bytes from 1.1.1.1: icmp_seq=0 ttl=255 time=2.000 ms 56 bytes from 1.1.1.1: icmp_seq=1 ttl=255 time=2.000 ms 56 bytes from 1.1.1.1: icmp_seq=2 ttl=255 time=2.000 ms 56 bytes from 1.1.1.1: icmp_seq=3 ttl=255 time=2.000 ms 56 bytes from 1.1.1.1: icmp_seq=4 ttl=255 time=2.000 ms --- Ping statistics for 1.1.1.1 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.000/2.000/2.000/0.000 ms [CORE2]%Jul 5 16:00:03:491 2019 CORE2 PING/6/PING_STATISTICS: Ping statistics for 1.1.1.1: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 2.000/2.000/2.000/0.000 ms. [CORE2] [CORE2]ping 1.1.1.5 Ping 1.1.1.5 (1.1.1.5): 56 data bytes, press CTRL_C to break 56 bytes from 1.1.1.5: icmp_seq=0 ttl=255 time=3.000 ms 56 bytes from 1.1.1.5: icmp_seq=1 ttl=255 time=1.000 ms 56 bytes from 1.1.1.5: icmp_seq=2 ttl=255 time=1.000 ms 56 bytes from 1.1.1.5: icmp_seq=3 ttl=255 time=0.000 ms 56 bytes from 1.1.1.5: icmp_seq=4 ttl=255 time=0.000 ms --- Ping statistics for 1.1.1.5 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 0.000/1.000/3.000/1.095 ms [CORE2]%Jul 5 16:00:08:840 2019 CORE2 PING/6/PING_STATISTICS: Ping statistics for 1.1.1.5: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 0.000/1.000/3.000/1.095 ms. [CORE2]
但 CORE2 目前还不能 ping 通 8.8.8.8 ，还需要加两条默认静态路由：
CORE2 ： ip route-static 0.0.0.0 0.0.0.0 1.1.1.1 ip route-static 0.0.0.0 0.0.0.0 1.1.1.5
现在 CORE2 ping 8.8.8.8 没有问题了：
[CORE2]ping 8.8.8.8 Ping 8.8.8.8 (8.8.8.8): 56 data bytes, press CTRL_C to break 56 bytes from 8.8.8.8: icmp_seq=0 ttl=255 time=2.000 ms 56 bytes from 8.8.8.8: icmp_seq=1 ttl=255 time=1.000 ms 56 bytes from 8.8.8.8: icmp_seq=2 ttl=255 time=1.000 ms 56 bytes from 8.8.8.8: icmp_seq=3 ttl=255 time=0.000 ms 56 bytes from 8.8.8.8: icmp_seq=4 ttl=255 time=1.000 ms --- Ping statistics for 8.8.8.8 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 0.000/1.000/2.000/0.632 ms [CORE2]%Jul 5 16:02:55:245 2019 CORE2 PING/6/PING_STATISTICS: Ping statistics for 8.8.8.8: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 0.000/1.000/2.000/0.632 ms. [CORE2]
接下来我们配置 VLAN 10 和 VLAN 20 的 SVI 接口，以及 CORE 和 ACCESS 之间的链路，同时去往每台 ACCESS 交换机的所有 TRUNK 链路都做成一个聚合口：
CORE2 ： vlan 10 vlan 20 int vlan 10 ip address 1.1.2.1 255.255.255.0 int vlan 20 ip address 10.0.0.1 255.255.0.0 interface Bridge-Aggregation 1 interface Bridge-Aggregation 2 exit int ran g 1/0/1 g 2/0/2 port link-aggregation group 1 int ran g 1/0/2 g 2/0/1 port link-aggregation group 2 interface Bridge-Aggregation 1 port link-type trunk port trunk permit vlan 1 10 20 interface Bridge-Aggregation 2 port link-type trunk port trunk permit vlan 1 10 20 exit
接下来配置 ACCESS 交换机：
ACCESS1 ： sys hostname ACCESS1 vlan 10 port g 1/0/10 vlan 20 port g 1/0/20 interface Bridge-Aggregation 1 exit int ran g 1/0/1 g 1/0/2 port link-aggregation group 1 interface Bridge-Aggregation 1 port link-type trunk port trunk permit vlan 1 10 20 exit
ACCESS2 ： sys hostname ACCESS2 vlan 10 port g 1/0/10 vlan 20 port g 1/0/20 interface Bridge-Aggregation 2 exit int ran g 1/0/1 g 1/0/2 port link-aggregation group 2 interface Bridge-Aggregation 2 port link-type trunk port trunk permit vlan 1 10 20 exit
接下来我们配置 SERVER ：
SERVER1 ： sys hostname SERVER1 int g 0/0 ip address 1.1.2.2 255.255.255.0 int g 0/1 ip address 10.0.0.2 255.255.0.0 ip route-static 0.0.0.0 0.0.0.0 1.1.2.1
SERVER2 ： sys hostname SERVER2 int g 0/0 ip address 1.1.2.3 255.255.255.0 int g 0/1 ip address 10.0.0.3 255.255.0.0 ip route-static 0.0.0.0 0.0.0.0 1.1.2.1
测试：
SERVER1 和 SERVER2 ping 内网和外网均没有问题：
[SERVER1]ping 1.1.2.3 Ping 1.1.2.3 (1.1.2.3): 56 data bytes, press CTRL_C to break 56 bytes from 1.1.2.3: icmp_seq=0 ttl=255 time=13.000 ms 56 bytes from 1.1.2.3: icmp_seq=1 ttl=255 time=3.000 ms 56 bytes from 1.1.2.3: icmp_seq=2 ttl=255 time=3.000 ms 56 bytes from 1.1.2.3: icmp_seq=3 ttl=255 time=3.000 ms 56 bytes from 1.1.2.3: icmp_seq=4 ttl=255 time=3.000 ms --- Ping statistics for 1.1.2.3 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 3.000/5.000/13.000/4.000 ms [SERVER1]%Jul 5 17:01:02:166 2019 SERVER1 PING/6/PING_STATISTICS: Ping statistics for 1.1.2.3: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 3.000/5.000/13.000/4.000 ms. [SERVER1] [SERVER1]ping 10.0.0.3 Ping 10.0.0.3 (10.0.0.3): 56 data bytes, press CTRL_C to break 56 bytes from 10.0.0.3: icmp_seq=0 ttl=255 time=6.000 ms 56 bytes from 10.0.0.3: icmp_seq=1 ttl=255 time=2.000 ms 56 bytes from 10.0.0.3: icmp_seq=2 ttl=255 time=4.000 ms 56 bytes from 10.0.0.3: icmp_seq=3 ttl=255 time=2.000 ms 56 bytes from 10.0.0.3: icmp_seq=4 ttl=255 time=3.000 ms --- Ping statistics for 10.0.0.3 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.000/3.400/6.000/1.497 ms [SERVER1]%Jul 5 17:01:08:860 2019 SERVER1 PING/6/PING_STATISTICS: Ping statistics for 10.0.0.3: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 2.000/3.400/6.000/1.497 ms. [SERVER1] [SERVER1]ping 8.8.8.8 Ping 8.8.8.8 (8.8.8.8): 56 data bytes, press CTRL_C to break 56 bytes from 8.8.8.8: icmp_seq=0 ttl=254 time=4.000 ms 56 bytes from 8.8.8.8: icmp_seq=1 ttl=254 time=4.000 ms 56 bytes from 8.8.8.8: icmp_seq=2 ttl=254 time=6.000 ms 56 bytes from 8.8.8.8: icmp_seq=3 ttl=254 time=4.000 ms 56 bytes from 8.8.8.8: icmp_seq=4 ttl=254 time=2.000 ms --- Ping statistics for 8.8.8.8 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.000/4.000/6.000/1.265 ms [SERVER1]%Jul 5 17:01:16:306 2019 SERVER1 PING/6/PING_STATISTICS: Ping statistics for 8.8.8.8: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 2.000/4.000/6.000/1.265 ms. [SERVER1]
[SERVER2]ping 1.1.2.2 Ping 1.1.2.2 (1.1.2.2): 56 data bytes, press CTRL_C to break 56 bytes from 1.1.2.2: icmp_seq=0 ttl=255 time=3.000 ms 56 bytes from 1.1.2.2: icmp_seq=1 ttl=255 time=3.000 ms 56 bytes from 1.1.2.2: icmp_seq=2 ttl=255 time=3.000 ms 56 bytes from 1.1.2.2: icmp_seq=3 ttl=255 time=6.000 ms 56 bytes from 1.1.2.2: icmp_seq=4 ttl=255 time=2.000 ms --- Ping statistics for 1.1.2.2 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.000/3.400/6.000/1.356 ms [SERVER2]%Jul 5 17:03:09:213 2019 SERVER2 PING/6/PING_STATISTICS: Ping statistics for 1.1.2.2: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 2.000/3.400/6.000/1.356 ms. [SERVER2] [SERVER2]ping 10.0.0.2 Ping 10.0.0.2 (10.0.0.2): 56 data bytes, press CTRL_C to break 56 bytes from 10.0.0.2: icmp_seq=0 ttl=255 time=5.000 ms 56 bytes from 10.0.0.2: icmp_seq=1 ttl=255 time=2.000 ms 56 bytes from 10.0.0.2: icmp_seq=2 ttl=255 time=2.000 ms 56 bytes from 10.0.0.2: icmp_seq=3 ttl=255 time=4.000 ms 56 bytes from 10.0.0.2: icmp_seq=4 ttl=255 time=2.000 ms --- Ping statistics for 10.0.0.2 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.000/3.000/5.000/1.265 ms [SERVER2]%Jul 5 17:03:15:133 2019 SERVER2 PING/6/PING_STATISTICS: Ping statistics for 10.0.0.2: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 2.000/3.000/5.000/1.265 ms. [SERVER2] [SERVER2]ping 8.8.8.8 Ping 8.8.8.8 (8.8.8.8): 56 data bytes, press CTRL_C to break 56 bytes from 8.8.8.8: icmp_seq=0 ttl=254 time=3.000 ms 56 bytes from 8.8.8.8: icmp_seq=1 ttl=254 time=6.000 ms 56 bytes from 8.8.8.8: icmp_seq=2 ttl=254 time=2.000 ms 56 bytes from 8.8.8.8: icmp_seq=3 ttl=254 time=2.000 ms 56 bytes from 8.8.8.8: icmp_seq=4 ttl=254 time=2.000 ms --- Ping statistics for 8.8.8.8 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.000/3.000/6.000/1.549 ms [SERVER2]%Jul 5 17:03:20:404 2019 SERVER2 PING/6/PING_STATISTICS: Ping statistics for 8.8.8.8: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 2.000/3.000/6.000/1.549 ms. [SERVER2]
我们现在可以看到 CORE2 是 IRF 中的 master ：
[CORE2]dis irf
MemberID Role Priority CPU-Mac Description
1 Standby 1 1e84-3682-0204 ---
*+2 Master 2 1e84-4489-0304 ---
--------------------------------------------------
* indicates the device is the master.
+ indicates the device through which the user logs in.
The bridge MAC of the IRF is: 1e84-4489-0300
Auto upgrade : yes
Mac persistent : 6 min
Domain ID : 10
[CORE2]
现在我们假设 CORE2 宕机了，看看 SERVER1 和 SERVER2 的网络通信是否受到影响。
如下图所示，此时我们直接在 HCL 模拟器里停止掉 CORE2 ：
此时 SERVER1 和 SERVER2 ping 内网和外网依旧没有问题：
[SERVER1]ping 1.1.2.3 Ping 1.1.2.3 (1.1.2.3): 56 data bytes, press CTRL_C to break 56 bytes from 1.1.2.3: icmp_seq=0 ttl=255 time=4.000 ms 56 bytes from 1.1.2.3: icmp_seq=1 ttl=255 time=3.000 ms 56 bytes from 1.1.2.3: icmp_seq=2 ttl=255 time=2.000 ms 56 bytes from 1.1.2.3: icmp_seq=3 ttl=255 time=4.000 ms 56 bytes from 1.1.2.3: icmp_seq=4 ttl=255 time=3.000 ms --- Ping statistics for 1.1.2.3 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.000/3.200/4.000/0.748 ms [SERVER1]%Jul 6 18:00:34:988 2019 SERVER1 PING/6/PING_STATISTICS: Ping statistics for 1.1.2.3: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 2.000/3.200/4.000/0.748 ms. [SERVER1] [SERVER1]ping 10.0.0.3 Ping 10.0.0.3 (10.0.0.3): 56 data bytes, press CTRL_C to break 56 bytes from 10.0.0.3: icmp_seq=0 ttl=255 time=5.000 ms 56 bytes from 10.0.0.3: icmp_seq=1 ttl=255 time=2.000 ms 56 bytes from 10.0.0.3: icmp_seq=2 ttl=255 time=3.000 ms 56 bytes from 10.0.0.3: icmp_seq=3 ttl=255 time=2.000 ms 56 bytes from 10.0.0.3: icmp_seq=4 ttl=255 time=3.000 ms --- Ping statistics for 10.0.0.3 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.000/3.000/5.000/1.095 ms [SERVER1]%Jul 6 18:00:42:330 2019 SERVER1 PING/6/PING_STATISTICS: Ping statistics for 10.0.0.3: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 2.000/3.000/5.000/1.095 ms. [SERVER1] [SERVER1]ping 8.8.8.8 Ping 8.8.8.8 (8.8.8.8): 56 data bytes, press CTRL_C to break 56 bytes from 8.8.8.8: icmp_seq=0 ttl=254 time=3.000 ms 56 bytes from 8.8.8.8: icmp_seq=1 ttl=254 time=2.000 ms 56 bytes from 8.8.8.8: icmp_seq=2 ttl=254 time=1.000 ms 56 bytes from 8.8.8.8: icmp_seq=3 ttl=254 time=2.000 ms 56 bytes from 8.8.8.8: icmp_seq=4 ttl=254 time=1.000 ms --- Ping statistics for 8.8.8.8 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 1.000/1.800/3.000/0.748 ms [SERVER1] [SERVER1]%Jul 6 18:00:48:035 2019 SERVER1 PING/6/PING_STATISTICS: Ping statistics for 8.8.8.8: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 1.000/1.800/3.000/0.748 ms. [SERVER1]
[SERVER2]ping 1.1.2.2 Ping 1.1.2.2 (1.1.2.2): 56 data bytes, press CTRL_C to break 56 bytes from 1.1.2.2: icmp_seq=0 ttl=255 time=4.000 ms 56 bytes from 1.1.2.2: icmp_seq=1 ttl=255 time=6.000 ms 56 bytes from 1.1.2.2: icmp_seq=2 ttl=255 time=5.000 ms 56 bytes from 1.1.2.2: icmp_seq=3 ttl=255 time=3.000 ms 56 bytes from 1.1.2.2: icmp_seq=4 ttl=255 time=4.000 ms --- Ping statistics for 1.1.2.2 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 3.000/4.400/6.000/1.020 ms [SERVER2]%Jul 6 18:01:34:232 2019 SERVER2 PING/6/PING_STATISTICS: Ping statistics for 1.1.2.2: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 3.000/4.400/6.000/1.020 ms. [SERVER2] [SERVER2]ping 10.0.0.2 Ping 10.0.0.2 (10.0.0.2): 56 data bytes, press CTRL_C to break 56 bytes from 10.0.0.2: icmp_seq=0 ttl=255 time=4.000 ms 56 bytes from 10.0.0.2: icmp_seq=1 ttl=255 time=3.000 ms 56 bytes from 10.0.0.2: icmp_seq=2 ttl=255 time=2.000 ms 56 bytes from 10.0.0.2: icmp_seq=3 ttl=255 time=2.000 ms 56 bytes from 10.0.0.2: icmp_seq=4 ttl=255 time=2.000 ms --- Ping statistics for 10.0.0.2 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.000/2.600/4.000/0.800 ms [SERVER2]%Jul 6 18:01:40:538 2019 SERVER2 PING/6/PING_STATISTICS: Ping statistics for 10.0.0.2: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 2.000/2.600/4.000/0.800 ms. [SERVER2] [SERVER2]ping 8.8.8.8 Ping 8.8.8.8 (8.8.8.8): 56 data bytes, press CTRL_C to break 56 bytes from 8.8.8.8: icmp_seq=0 ttl=254 time=4.000 ms 56 bytes from 8.8.8.8: icmp_seq=1 ttl=254 time=2.000 ms 56 bytes from 8.8.8.8: icmp_seq=2 ttl=254 time=3.000 ms 56 bytes from 8.8.8.8: icmp_seq=3 ttl=254 time=3.000 ms 56 bytes from 8.8.8.8: icmp_seq=4 ttl=254 time=1.000 ms --- Ping statistics for 8.8.8.8 --- 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 1.000/2.600/4.000/1.020 ms [SERVER2]%Jul 6 18:01:45:480 2019 SERVER2 PING/6/PING_STATISTICS: Ping statistics for 8.8.8.8: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 1.000/2.600/4.000/1.020 ms. [SERVER2]
至此，实验完成。
本文完。如有疑问，欢迎在下方留言；如本文有什么错误，欢迎在下方留言指正，谢谢。
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