Cisco Headend System Release 2.5 Guide De Montage
78-738190-01 Rev B
SR 2.5 and SR 3.5 UniPack Pre-Upgrade Procedures
1-19
Check the Time to Live Parameter,
Continued
3. Type select * from cmts; and then press Enter.
Result: The system displays the rows in the cmts table.
id name
ipaddr
ipaddr2
2 vod4CriscoCMTS 192.168.201.201
1 row(s) retrieved.
Note: This system shows only one CMTS; your system may show more.
Note: This system shows only one CMTS; your system may show more.
4. Write the IP address of each CMTS on a sheet of paper so that you can refer
to it later.
Note: If no CMTSs are found, skip the remainder of this procedure and go
Note: If no CMTSs are found, skip the remainder of this procedure and go
to Delete the copyControlParams File, later in this chapter.
5. Type the Ctrl and c keys simultaneously to close the database.
6. Go to Determining the Number of Hops, next in this section.
Determining the Number of Hops
In this procedure, you will run the Unix traceroute command against each CMTS IP
address that you found in the 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.
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
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 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.