HDLC协议的配置
1、基本配置
<Huawei>system
[Huawei]sysname AR1
[AR1]interface g0/0/1
[AR1-GigabitEthernet0/0/1]ip address 11.1.1.1 24
[AR1-GigabitEthernet0/0/1]quit
[AR1]interface s0/0/0
[AR1-Serial0/0/0]ip address 12.1.1.1 24
[AR1-Serial0/0/0]quit
[AR1]
<Huawei>system
[Huawei]sysname AR2
[AR2]interface g0/0/1
[AR2-GigabitEthernet0/0/1]ip address 22.1.1.2 24
[AR2-GigabitEthernet0/0/1]quit
[AR2]interface s0/0/0
[AR2-Serial0/0/0]ip address 12.1.1.2 24
[AR2-Serial0/0/0]quit
[AR2]
2、配置静态路由
在AR2上配置默认路由指向出口网关AR1，并在AR1上配置目的网段PC1所在网络的路由器——下一跳路由器AR2。
[AR2]ip route-static 0.0.0.0 0.0.0.0 12.1.1.1
[AR1]ip route-static 22.1.1.0 255.255.255.0 12.1.1.2
在PC1上测试与PC2的通信。
PC>ping 22.1.1.22
Ping 22.1.1.22: 32 data bytes, Press Ctrl_C to break
From 22.1.1.22: bytes=32 seq=1 ttl=126 time=94 ms
From 22.1.1.22: bytes=32 seq=2 ttl=126 time=62 ms
From 22.1.1.22: bytes=32 seq=3 ttl=126 time=47 ms
From 22.1.1.22: bytes=32 seq=4 ttl=126 time=31 ms
From 22.1.1.22: bytes=32 seq=5 ttl=126 time=63 ms
--- 22.1.1.22 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 31/59/94 ms
3、配置HDLC
默认情况下，串行接口封装的链路层协议即为PPP，查看。
[AR1]display interface s0/0/0
Serial0/0/0 current state : UP
Line protocol current state : UP
Last line protocol up time : 2021-01-24 23:21:05 UTC-08:00
Description:
Route Port,The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is 12.1.1.1/24
Link layer protocol is PPP
LCP opened, IPCP opened
Last physical up time : 2021-01-24 23:17:12 UTC-08:00
Last physical down time : 2021-01-24 23:17:11 UTC-08:00
Current system time: 2021-01-24 23:25:00-08:00Interface is V35
Last 300 seconds input rate 2 bytes/sec, 0 packets/sec
Last 300 seconds output rate 2 bytes/sec, 0 packets/sec
Input: 1508 bytes, 103 Packets
Ouput: 1534 bytes, 104 Packets
Input bandwidth utilization : 0.02%
Output bandwidth utilization : 0.02%
在AR1和AR2的串口上分别使用LINK-PROTOCOL命令配置链路层协议为HDLC。
[AR1-Serial0/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed.
Continue? [Y/N]:y
[AR2-Serial0/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed.
Continue? [Y/N]:y
再一次查看。
[AR1]display interface s0/0/0
Serial0/0/0 current state : UP
Line protocol current state : UP
Last line protocol up time : 2021-01-24 23:27:17 UTC-08:00
Description:
Route Port,The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is 12.1.1.1/24
Link layer protocol is nonstandard HDLC
Last physical up time : 2021-01-24 23:27:17 UTC-08:00
Last physical down time : 2021-01-24 23:27:17 UTC-08:00
Current system time: 2021-01-24 23:27:58-08:00Interface is V35
Last 300 seconds input rate 3 bytes/sec, 0 packets/sec
Last 300 seconds output rate 3 bytes/sec, 0 packets/sec
Input: 1910 bytes, 136 Packets
Ouput: 1958 bytes, 136 Packets
Input bandwidth utilization : 0.03%
Output bandwidth utilization : 0.03%
4、验证配置效果
测试PC1和PC2的连通性。
PC>ping 22.1.1.22
Ping 22.1.1.22: 32 data bytes, Press Ctrl_C to break
From 22.1.1.22: bytes=32 seq=1 ttl=126 time=47 ms
From 22.1.1.22: bytes=32 seq=2 ttl=126 time=46 ms
From 22.1.1.22: bytes=32 seq=3 ttl=126 time=47 ms
From 22.1.1.22: bytes=32 seq=4 ttl=126 time=47 ms
From 22.1.1.22: bytes=32 seq=5 ttl=126 time=63 ms
--- 22.1.1.22 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 46/50/63 ms
可以正常通信。