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Cisco Broadband Cable Command Reference Guide
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Chapter 2 Cisco CMTS Configuration Commands
cable service class
cable service class
To set parameters for DOCSIS 1.1 cable service class, use the
cable service class
command in global
configuration mode. To delete a service class or to remove a configuration, use the
no
form of the
command.
cable service class
class-index
[
keyword-options
]
no cable service class
class-index
[
keyword-options
]
Syntax Description
class-index
Specifies the class ID for the class to be modified. Valid range is 1 to 255.
activity-timeout
Specifies the activity timeout (0 to 65,535).
admission-timeout
Specifies the admitted timeout (0 to 65,535).
downstream
Specifies that the service class is for the downstream direction (from the
CMTS to the CM). (The default direction is
upstream
.)
grant-interval
Specifies the grant interval (0 to 4,294,967,295 microseconds).
grant-jitter
Specifies the grant jitter (0 to 4,294,967,295 microseconds).
grant-size
Specifies the grant size (0 to 65,535 bytes).
grants-per-interval
Specifies the grants per interval (0 to 127 grants).
max-burst
Specifies the maximum transmission burst (1522 to 4,294,967,295 bytes).
Note
The recommended value range is 1600 to 1800 bytes. Using a value
of 0 or greater than 1800 bytes can cause latency issues for Voice-
over-IP. A value of less than 1522 bytes can prevent the upstream
transmission of large ethernet frames for any CM or CMTS not
implementing fragmentation.
max-concat-burst
Specifies the maximum concatenation burst (0 to 65,535 bytes).
max-latency
Specifies the maximum latency allowed (0 to 4,294,967,295 microseconds).
max-rate
Specifies the maximum rate (0 to 4,294,967,295 bps).
min-packet-size
Specifies the minimum packet size for reserved rate (0 to 65,535 bytes).
min-rate
Specifies the minimum rate (0 to 4,294,967,295 bps).
name
Specifies the service class name string.
poll-interval
Specifies the poll interval (0 to 4,294,967,295 microseconds).
poll-jitter
Specifies the poll jitter (0 to 4,294,967,295 microseconds).
priority
Specifies the priority (0 to 7, where 7 is the highest priority).
req-trans-policy
Specifies the request transmission policy bit field (0 to FFFFFFF in
hexadecimal).
sched-type
Specifies the service class schedule type:
2–Best-Effort Schedule Type
3–Non-Real-Time Polling Service Schedule Type (supported only in
Cisco 12.2(4)BC and later releases)
4–Real-Time Polling Service Schedule Type
5–Unsolicited Grant Service with Activity Detection Schedule Type
6–Unsolicited Grant Service Schedule Type
