Queue-Limit - Cisco CRS Command Reference Manual

Quality of Service Commands on the Cisco IOS XR Software

queue-limit

To specify or modify the maximum number of packets the queue can hold for a class policy configured in a
policy map, use the queue-limit command in policy map class configuration mode. To remove the queue
packet limit from a class, use the no form of this command.
queue-limit value [ unit ]
no queue-limit
Syntax Description
value
unit
Command Default
100 milliseconds: maximum threshold for tail drop
10 milliseconds: maximum threshold for high-priority queues
Maximum threshold units are in packets.
The default queue limit is set to bytes of 100 ms of queue bandwidth. The following formula is used to
Note
calculate the default queue limit in bytes: bytes = (100 ms * queue bandwidth kbps) / 8.
Command Modes
Policy map class configuration
Command History
Release
Release 2.0
OL-23235-03
Maximum threshold for tail drop in bytes. Range is from 1 to 4294967295.
(Optional) Units for the queue limit value. Values can be:
• bytes —bytes
• cells —cells (ATM subinterfaces only)
• ms —milliseconds
• packets —packets (default)
• us —microseconds
Note When the specified units is packets, packets are assumed to be 256 bytes in
size.
Modification
This command was introduced.
Cisco IOS XR Modular Quality of Service Command Reference for the Cisco CRS Router, Release 4.0
queue-limit
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