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Cisco Broadband Cable Command Reference Guide
OL-1581-08
Chapter 3 Cisco CMTS Show Commands
show interface cable modem
7 11 modem online(pt) 1.2.3.18 dhcp 0010.7b6b.71e3
8 11 modem online(pt) 1.2.3.13 dhcp 0010.7bed.ab6f
9 11 modem online(pt) 1.2.3.21 dhcp 0010.7bed.a52f
10 11 modem online(pt) 1.2.3.14 dhcp 0010.7b6b.7191
11 11 modem online(pt) 1.2.3.6 dhcp 0010.7bed.ab57
Router#
The following is sample output from the
show interface cable modem
command for an individual SID
on a particular cable interface.
Router#
show interface cable 6/0 modem 9
SID Priv bits Type State IP address method MAC address
9 11 modem online(pt) 1.2.3.21 dhcp 0010.7bed.a52f
Router#
Table 3-54 show interface cable modem Field Descriptions
Field
Description
SID
Identifies a SID currently defined and in use on this particular cable
interface.
Priv bits
Identifies the current settings of the two privacy bits in the
Extended Header (EH) that is used for BPI-encrypted packets.
•
First bit = Enable bit. Set to 1 when BPI or BPI+ is enabled.
•
Second bit = Toggle bit. Matches the least significant bit (LSB)
of the Key Sequence Number (KSN) in the EH.
For example, a value of “00” indicates that BPI is not enabled. A
value of “10” indicates that BPI is enabled and that the KSN is an
even number. A value of “11” indicates that BPI is enabled and that
the KSN is an odd number.
Note
For more information on these bits, see the DOCSIS
Baseline Privacy Interface Plus Interface Specification
(SP-BPI+-I08-020301 or later).
Type
Identifies the use for this SID:
•
host = SID is used for a CPE device.
•
modem = SID is used for a CM.
•
multicast = SID is used for a multicast broadcast.
State
The current state of the MAC layer for this SID and CM (see
Table 3-15 on page 3-60
). For hosts or multicast broadcasts, the
state will always be unknown.
IP address
Identifies the IP address for the CM using this SID.