Cisco Headend System Release 2.7 Guia Da Instalação
Chapter 1 SR i4.2.2 DVD Pre-Upgrade Procedures
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3 Does the output from step 2 reveal that there are CMTSs on the system?
If yes, continue with step 4.
If no, go to the next procedure in this chapter.
4 Write the IP address of each CMTS on a sheet of paper so that you can refer to it
later.
5 Type the Ctrl and c keys simultaneously to close the database.
6 Go to
6 Go to
Determining the Number of Hops (on page 28).
Determining the Number of Hops
In this procedure, you will run the UNIX traceroute command against each CMTS IP
address that you found in a previous procedure, Obtaining the CMTS IP
Addresses. The results of the traceroute command will indicate the number of hops
required for data to reach each CMTS.
Note: If the traceroute command times out, the most likely cause is that you have
supplied an inaccurate IP address to the traceroute command.
1 Type traceroute < IP Address > and then press Enter.
address that you found in a previous procedure, Obtaining the CMTS IP
Addresses. The results of the traceroute command will indicate the number of hops
required for data to reach each CMTS.
Note: If the traceroute command times out, the most likely cause is that you have
supplied an inaccurate IP address to the traceroute command.
1 Type traceroute < IP Address > and then press Enter.
Note: Substitute the IP address of a CMTS for < IP Address >.
Example: traceroute 192.168.201.201
Result: The system shows the number of hops; this example shows that two
hops are required.
$ traceroute 192.168.201.201
traceroute: Warning: Multiple interfaces found; using 10.252.0.1 @ ce0
traceroute to 192.168.201.201 (192.168.201.201), 30 hops max, 40 byte packets
1 router (10.252.0.254) 0.541 ms 0.343 ms 0.290 ms
2 cmts (192.168.201.201) 0.773 ms * 0.738 ms
Example: traceroute 192.168.201.201
Result: The system shows the number of hops; this example shows that two
hops are required.
$ traceroute 192.168.201.201
traceroute: Warning: Multiple interfaces found; using 10.252.0.1 @ ce0
traceroute to 192.168.201.201 (192.168.201.201), 30 hops max, 40 byte packets
1 router (10.252.0.254) 0.541 ms 0.343 ms 0.290 ms
2 cmts (192.168.201.201) 0.773 ms * 0.738 ms
2 On the sheet of paper that you used in step 4 of the previous procedure, write the
number of hops required for data to reach each CMTS.
3 Repeat steps 1 and 2 for each CMTS that you recorded in the previous procedure,
Obtaining the CMTS IP Addresses.
4 Do any of the CMTSs require 8 or more hops?
If yes, go to Editing the .profile File (on page 25).
If no, go to the next procedure in this chapter; you do not have to modify the
.profile file.
.profile file.