show controllers cable-modem mac

 

Table 8

Show Controllers Cable-Modem MAC State Field Descriptions (continued)

 

 

 

 

 

Field

 

Description

 

 

 

 

Maximum Burst Size

Maximum number of mini-slots that can be transmitted during this burst type. When

 

 

 

the interval type is Short Data Grant, this value must be greater than 0. If this value is

 

 

 

0, the burst size is limited elsewhere.

 

 

 

 

 

Guard Time Size

 

Amount of time in symbols between the center of the last symbol of a burst and the

 

 

 

center of the first symbol of the preamble of an immediately following burst in an

 

 

 

upstream transmission from the Cisco uBR924 to the CMTS.

 

 

 

 

Last Codeword Length

Indicates whether or not the length of the last codeword is fixed or shortened.

 

 

 

(1 = fixed; 2 = shortened)

 

 

 

 

 

Scrambler on/off

 

Indicates whether or not a scrambler is enabled in the upstream modulator.

 

 

 

(1 = on; 2 = off)

 

 

 

 

 

Network Access

 

Indicates whether or not the Cisco uBR924 has access to the HFC network.

 

 

 

 

 

Vendor ID

 

Unique identifier specifying the cable modem manufacturer.

 

 

 

 

Auth. Wait Timeout

Number of seconds the Cisco uBR924 waits for a reply after sending the

 

 

 

Authorization Request message to the CMTS.

 

 

 

 

Reauth. Wait Timeout

Number of seconds the Cisco uBR924 waits for a reply after it has sent an

 

 

 

Authorization Request message to the CMTS in response to a reauthorization request

 

 

 

or an Authorization Invalid message from the CMTS.

 

 

 

 

 

Auth. Grace Time

 

Number of seconds before the current authorization is set to expire that the grace

 

 

 

timer begins, signaling the Cisco uBR924 to begin the reauthorization process.

 

 

 

 

 

Op. Wait Timeout

 

Number of seconds the TEK state machine waits for a reply from the CMTS after

 

 

 

sending its initial Key Request for its SID’s keying material.

 

 

 

 

Retry Wait Timeout

Number of seconds the TEK state machine waits for a replacement key for this SID

 

 

 

after the TEK grace timer has expired and the request for a replacement key has been

 

 

 

made.

 

 

 

 

 

TEK Grace Time

 

Number of seconds before the current TEK is set to expire that the TEK grace timer

 

 

 

begins, signaling the TEK state machine to request a replacement key.

 

 

 

 

Auth. Reject Wait Time

Number of seconds the Cisco uBR924 waits before sending another Authorization

 

 

 

Request message to the CMTS after it has received an Authorization Reject message.

 

 

 

 

 

Assigned SID

 

Service ID assigned by the CMTS for the corresponding service class.

 

 

 

 

Max Downstream Rate

Maximum downstream rate in bits per second that the CMTS is permitted to forward

 

 

 

to CPE unicast MAC addresses learned or configured as mapping to this

 

 

 

Cisco uBR924. (This does not include MAC packets addressed to broadcast or

 

 

 

multicast MAC addresses.)

 

 

 

 

Max Upstream Rate

Maximum upstream rate in bits per second that the Cisco uBR924 is permitted to

 

 

 

forward to the RF network. This includes packet PDU data packets addressed to

 

 

 

broadcast or multicast addresses.

 

 

 

 

 

Upstream Priority

 

Relative priority assigned to this service class for data transmission in the upstream

 

 

 

channel. Higher numbers indicate higher priority.

 

 

 

 

Min Upstream Rate

Date rate in bits per second that will be guaranteed to this service class on the

 

 

 

upstream channel.

 

 

 

 

Max Upstream Burst

Maximum transmit burst in bytes allowed for this service class on the upstream

 

 

 

channel.

 

 

 

 

 

Privacy Enable

 

Indicates whether or not Baseline Privacy is enabled for this service class.

 

 

 

 

Ranging Backoff Start

Initial back-off window for initial ranging contention, expressed as a power of 2.

 

 

 

Valid values are from 0 to 15.

 

 

 

 

Troubleshooting Tips for the Cisco uBR924 Cable Access Router 51

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Cisco Systems UBR924 manual Show controllers cable-modem mac