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Cisco Broadband Cable Command Reference Guide
OL-1581-07
Chapter 6 Cable CPE Commands
show controllers cable-modem lookup-table
show controllers cable-modem lookup-table
To display the mini-slot lookup table for the router’s cable interface, use the
show controllers
cable-modem lookup-table
command in privileged EXEC mode.
Cisco uBR904, uBR905, uBR924, uBR925 cable access routers, Cisco CVA122 Cable Voice Adapter
show controllers cable-modem
number
lookup-table
Syntax Description
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This command displays the details of the lookup table. The driver uses this table to convert the size of
the packets that the router wants to transmit into a bandwidth request to the CMTS in mini-slots. The
contents of this table are affected by the upstream symbol rate that is negotiated between the CMTS and
the cable access router.
Use this table to look up the packet size and determine how many mini-slots will be needed.
Examples
The following shows a typical mini-slot lookup table as displayed by the
show controllers
cable-modem lookup-table
command:
Router#
show controllers cable-modem 0 lookup-table
Max Burst Size (minislots) = 0x6
Max Burst Length (bytes) = 0x4B
PHY Overhead Lookup Table:
000: 01 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06
010: 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06
020: 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06
030: 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06
040: 06 06 06 06 06 06 06 06 06 06 06 06 10 10 10 10
050: 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
060: 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
070: 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
080: 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
090: 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
number
Identifies the cable interface (always
0
).
Release
Modification
11.3(4)NA
This command was introduced for the Cisco uBR904 cable access router.
12.0(4)XI1
Support was added for the Cisco uBR924 cable access router.
12.1(3)XL
Support was added for the Cisco uBR905 cable access router.
12.1(5)XU1
Support was added for the Cisco CVA122 Cable Voice Adapter.
12.2(2)XA
Support was added for the Cisco uBR925 cable access router.
Содержание Broadband Cable
Страница 760: ...3 264 Cisco Broadband Cable Command Reference Guide OL 1581 08 Chapter 3 Cisco CMTS Show Commands show version ...
Страница 1216: ...6 214 Cisco Broadband Cable Command Reference Guide OL 1581 07 Chapter 6 Cable CPE Commands debug usb ...
Страница 1266: ...A 50 Cisco Broadband Cable Command Reference Guide OL 1581 07 Appendix A Using the ROM Monitor unset ...