show controllers cable-modem des
Troubleshooting Tips for the Cisco uBR924 Cable Access Router 29
Command History
Examples
DES engine registers are displayed in the following example:
uBR924#
show controllers cable-modem 0 des
downstream des:
ds_des_key_table:
key 0: even 0, odd 0
key 1: even 0, odd 0
key 2: even 0, odd 0
key 3: even 0, odd 0
ds_des_cbc_iv_table:
iv 0: even 0, odd 0
iv 1: even 0, odd 0
iv 2: even 0, odd 0
iv 3: even 0, odd 0
ds_des_sid_table:
sid_1=0x0000, sid_2=0x0000, sid_3=0x0000, sid_4=0x0000
ds_des_sid_enable=0x80, ds_des_ctrl=0x2E
ds_des_sv=0x0F00
ds_unencrypted_length=0x0C
upstream des:
us_des_key_table:
key 0: even 0, odd 0
key 1: even 0, odd 0
key 2: even 0, odd 0
key 3: even 0, odd 0
us_des_cbc_iv_table:
iv 0: even 0, odd 0
iv 1: even 0, odd 0
iv 2: even 0, odd 0
iv 3: even 0, odd 0
pb_req_bytes_to_minislots=0x10
us_des_ctrl=0x00, us_des_sid_1= 0x1234
ds_unencrypted_length=0x0C
Table 4 briefly describes some of the fields shown in the display. For more information, see the
Broadcom documentation for the BCM3300 chip.
Release
Modification
11.3 NA
This command was first introduced.
Table 4
Show Controllers Cable-Modem DES Field Descriptions
Field
Description
ds_des_key_table
Table showing downstream DES keys.
ds_des_cbc_iv_table
Table of downstream DES Cipher Block Chaining mode information.
ds_des_sid_table
Table showing the SID values to be enabled for DES encryption.
ds_des_sid_enable
Controls which SID entries in the SID table are enabled for encryption. In the above
example, none of the entries are enabled for encryption.
ds_des_ctrl
Control register that controls the operating mode of the downstream DES engine.
ds_des_sv
DES security version register; the range of the version field in the Baseline Privacy
Interface (BPI) extended headers that will be accepted by the hardware. High byte is
upper limit, low byte is lower limit. The Cisco uBR924 will accept versions 0 to 15.
