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show controllers cable-modem des
80 Cisco IOS Release 12.0(7)T
pb_req_bytes_to_minislots=0x10
us_des_ctrl=0x00, us_des_sid_1= 0x1234
ds_unencrypted_length=0x0C
Table 8 briefly describes some of the fields shown in the display. For more information, see the
Broadcom documentation for the BCM3300 chip.
Related Commands
Table 8 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 uBR900 will accept versions 0 to 15.
ds_unencrypted_length Specifies the number of bytes that will be unencrypted at the beginning of the MAC
frame. 0x0C means the first 12 bytes are not encrypted, which is what the DOCSIS
Baseline Privacy specification calls for.
us_des_key_table Table showing upstream DES keys.
us_des_cbc_iv_table Table of upstream DES Cipher Block Chaining mode information.
us_des_ctrl Control register that controls the operating mode of the upstream DES engine. The
value 0x24 means that the upstream is configured to enable decryption and to use CBC
mode.
Command Description
show controllers cable-modem Displays high-level controller information about a
Cisco uBR900 series cable access router.
show controllers cable-modem bpkm Displays information about the baseline privacy key
management exchange between the Cisco uBR900 series and
the CMTS.
show controllers cable-modem filters Displays the registers in the MAC hardware that are used for
filtering received frames.
show controllers cable-modem
lookup-table Displays the mini-slot lookup table inside a Cisco uBR900.
show controllers cable-modem mac Displays detailed MAC-layer information for a Cisco uBR900.
show controllers cable-modem phy Displays the contents of the registers used in the downstream
physical hardware of the Cisco uBR900 series.
show controllers cable-modem tuner Displays the settings for the upstream and downstream tuners
used by a Cisco uBR900 series.