R3303-HP HSR6800 Routers Network Management and Monitoring Configuration Guide

7
Ste
p
Command Remarks
4. Display the enabled
debugging functions.
display debugging [ interface
interface-type interface-number ]
[ module-name ] [ | { begin |
exclude | include }
regular-expression ]
Optional.
Available in any view.
Ping and tracert example
Network requirements
As shown in Figure 4, Router A failed to Telnet Router C. Determine whether Router A and Router C can
reach each other. If they cannot reach each other, locate the failed nodes in the network.
Figure 4 Network diagram
Configuration procedure
1. Use the ping command to test connectivity between Router A and Router C.
<RouterA> 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
The output shows that Router A and Router C cannot reach each other.
2. Use the tracert command to identify failed nodes.
# Enable sending of ICMP timeout packets on Router B.
<RouterB> system-view
[RouterB] ip ttl-expires enable
# Enable sending of ICMP destination unreachable packets on Router C.
<RouterC> system-view
[RouterC] ip unreachables enable
# Execute the tracert command on Router A.
<RouterA> 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 break
1 1.1.1.2 14 ms 10 ms 20 ms
2 * * *