Tracert - HP 5820X Switch Configuration Manual

1.1.1.1
Reply from 1.1.2.2: bytes=56 Sequence=4 ttl=254 time=1 ms
Record Route:
1.1.2.1
1.1.2.2
1.1.1.2
1.1.1.1
Reply from 1.1.2.2: bytes=56 Sequence=5 ttl=254 time=1 ms
Record Route:
1.1.2.1
1.1.2.2
1.1.1.2
1.1.1.1
--- 1.1.2.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 1/11/53 ms
The principle of ping –r is as shown in
The source (Device A) sends an ICMP echo request with the RR option being empty to the
1.
destination (Device C).
The intermediate device (Device B) adds the IP address (1.1.2.1) of its outbound interface to the RR
2.
option of the ICMP echo request and forwards the packet.
Upon receiving the request, the destination device copies the RR option in the request and adds the
3.
IP address (1.1.2.2) of its outbound interface to the RR option. Then the destination device sends an
ICMP echo reply.
The intermediate device adds the IP address (1.1.1.2) of its outbound interface to the RR option in
4.
the ICMP echo reply, and then forwards the reply.
Upon receiving the reply, the source device adds the IP address (1.1.1.1) of its inbound interface
5.
to the RR option. Finally, get the detailed information of routes from Device A to Device C: 1.1.1.1
<-> {1.1.1.2; 1.1.2.1} <-> 1.1.2.2.

Tracert

By using the tracert command, you can trace the Layer 3 devices involved in delivering an IP packet from
source to destination to check whether a network is available. This is useful for identification of failed
nodes in the event of network failure.
Figure 1.
3