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Configuration procedure – H3C Technologies H3C SR8800 User Manual

Page 19

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Figure 4 Network diagram

Configuration procedure

# Use the ping command to display whether Device A and Device C can reach each other.

ping 1.1.2.2

PING 1.1.2.2: 56 data bytes, press CTRL_C to break

Request time out

Request time out

Request time out

Request time out

Request time out

--- 1.1.2.2 ping statistics ---

5 packet(s) transmitted

0 packet(s) received

100.00% packet loss

# Device A and Device C cannot reach each other. Use the tracert command to determine failed nodes.

system-view

[DeviceA] ip ttl-expires enable

[DeviceA] ip unreachables enable

[DeviceA] tracert 1.1.2.2

traceroute to 1.1.2.2(1.1.2.2) 30 hops max,40 bytes packet, press CTRL_C to bre

ak

1 1.1.1.2 14 ms 10 ms 20 ms

2 * * *

3 * * *

4 * * *

5

The output shows that Device A and Device C cannot reach other, Device A and Device B can reach each
other, and an error occurred on the connection between Device B and Device C. In this case, use the
debugging ip icmp command to enable ICMP debugging on Device A and Device C to check whether

the devices send or receive the specified ICMP packets, or use the display ip routing-table command to

display whether Device A and Device C can reach each other.