Medianet Reference Guide - Cisco

Cisco Network Analysis Module
Chapter 6
Medianet Management and Visibility Design Considerations
Example 6-8
Example Output from the Traceroute Utility Over a Non-Redundant Path Network
me-eastcamp-1#traceroute
Protocol [ip]:
Target IP address: 10.16.5.20
Source address: 10.16.1.1
Numeric display [n]: yes
Timeout in seconds [3]:
Probe count [3]: 4
! Sets the number of packets generated with each TTL value.
Minimum Time to Live [1]:
Maximum Time to Live [30]: 6 ! Sets the max TTL value of the UDP packets generated.
Port Number [33434]:
Loose, Strict, Record, Timestamp, Verbose[none]: v
Loose, Strict, Record, Timestamp, Verbose[V]:
Type escape sequence to abort.
Tracing the route to 10.16.5.20
1 10.16.2.2 0 msec 4 msec 0 msec 0 msec
2 10.16.3.2 0 msec 0 msec 4 msec 0 msec
3 10.16.4.2 0 msec 0 msec 4 msec 4 msec
4 10.16.5.20 0 msec 0 msec 0 msec 8 msec
Traceroute returns the IP addresses of each Layer 3 hop in the route between me-eastcamp-1 and
me-eastctms-1. More specifically, because traceroute traces the hop route in one direction only, it returns
the IP address of the interface of each router or switch that is closest to the source IP address. These IP
addresses are shown in blue in Figure 6-23. Note that because traceroute is initiated by the
me-eastcamp-1 switch, it does not appear within the traceroute output itself.
If the traceroute command is run from me-eastcamp-2 using the VLAN 165 interface as the source
interface, the output looks similar to that shown in Example 6-9.
Example 6-9
Example Output from the Traceroute Utility From the Other Direction
me-eastcamp-1#traceroute
Protocol [ip]: ip
Target IP address: 10.16.1.11
Source address: 10.16.5.1
Numeric display [n]: yes
Timeout in seconds [3]:
Probe count [3]: 4
Minimum Time to Live [1]:
Maximum Time to Live [30]: 6
Port Number [33434]:
Loose, Strict, Record, Timestamp, Verbose[none]: V
Loose, Strict, Record, Timestamp, Verbose[V]:
Type escape sequence to abort.
Tracing the route to 10.16.1.11
1 10.16.4.1 0 msec 0 msec 0 msec 4 msec
2 10.16.3.1 0 msec 0 msec 0 msec 0 msec
3 10.16.2.1 0 msec 0 msec 4 msec 0 msec
4 * * * *
5 * * * *
6 * * * *
Destination not found inside max TTL diameter. ! Indicates the end device did not return
! an ICMP Time Exceeded Pkt.
The IP addresses returned from traceroute run in this direction are shown in red in Figure 6-23. Note that
because traceroute is initiated by the me-eastcamp-2 switch, it does not appear within the traceroute
output itself. Because a single path exists between the CTS-1000 and the Cisco TelePresence Multipoint
Switch, the same Layer 3 hops (routers and switches) are returned regardless of which direction the
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Medianet Reference Guide
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