Cisco Headend System Release 2.5 Installation Guide
Appendix D
Update the DHCT OUI with the updateOUI Utility
226
4020695 Rev C
Resetting the OUI by DHCT MAC Address
Follow these instructions to reset the OUI for a specific DHCT.
1 If necessary, open an xterm window on the DNCS.
2 Type updateOUI -r [MAC address] and then press Enter.
1 If necessary, open an xterm window on the DNCS.
2 Type updateOUI -r [MAC address] and then press Enter.
Example: updateOUI -r 00:01:A6:5B:EE:BC
Result: The system restores the identifier on the specified DHCT and displays a
message similar to the following:
AlertServer.210>> updateOUI -r 00:01:A6:5B:EE:BC
-------------------------------------------------------------------------------------------------------
Nov 28, 9:31:33 - updateOUI Started.
updateOUI Options: -r (Reset OUI=MAC).
Update done for MAC=00:01:A6:5B:EE:BC only.
------------------------------------------------------------------------------------------------------
Result: The system restores the identifier on the specified DHCT and displays a
message similar to the following:
AlertServer.210>> updateOUI -r 00:01:A6:5B:EE:BC
-------------------------------------------------------------------------------------------------------
Nov 28, 9:31:33 - updateOUI Started.
updateOUI Options: -r (Reset OUI=MAC).
Update done for MAC=00:01:A6:5B:EE:BC only.
------------------------------------------------------------------------------------------------------
Reset the Null OUI
Introduction
Prior to SR 1.5.1, system operators had been able to set to null in the database the
OUI, model number, and revision number of DHCTs that had trouble signing on to
the network. Then, when these DHCTs did eventually sign on successfully to the
network, the sign-on process automatically replaced these null values with valid
values. Beginning with SR 1.5.1, however, DHCTs need a valid OUI to sign on to the
network; DHCTs with a null OUI are unable to sign on. System operators can run
the updateOUI utility with the -rz option to replace null OUIs in the database with
the first three octets of the DHCT MAC address. These DHCTs will then be able to
sign on to the network.
OUI, model number, and revision number of DHCTs that had trouble signing on to
the network. Then, when these DHCTs did eventually sign on successfully to the
network, the sign-on process automatically replaced these null values with valid
values. Beginning with SR 1.5.1, however, DHCTs need a valid OUI to sign on to the
network; DHCTs with a null OUI are unable to sign on. System operators can run
the updateOUI utility with the -rz option to replace null OUIs in the database with
the first three octets of the DHCT MAC address. These DHCTs will then be able to
sign on to the network.
Important: If your system uses version 3.1 or later of the PowerTV operating system,
you must run the updateOUI utility in the forward direction after resetting the null
OUI in order for the DHCTs to sign on to the network.
you must run the updateOUI utility in the forward direction after resetting the null
OUI in order for the DHCTs to sign on to the network.
When to Reset the Null OUI
Reset the null OUI whenever more than a very small number of DHCTs have the
null OUI. To determine how many DHCTs have the null OUI, run the updateOUI
utility in information mode (-i option). If the number of DHCTs with the null OUI is
more than a few dozen, consider resetting the null OUI on those DHCTs. The
following procedure, Resetting the Null OUI, provides an example of resetting the
null OUI.
null OUI. To determine how many DHCTs have the null OUI, run the updateOUI
utility in information mode (-i option). If the number of DHCTs with the null OUI is
more than a few dozen, consider resetting the null OUI on those DHCTs. The
following procedure, Resetting the Null OUI, provides an example of resetting the
null OUI.