Cisco Catalyst 4500 Series Configuration Manual page 710

shape (interface configuration)
shape (interface configuration)
To specify traffic shaping on an interface, use the shape command. To remove traffic shaping, use the
no form of this command
Syntax Description
rate
percent
Command Default Default is no traffic shaping.
Command Modes Interface transmit queue configuration mode
Command History Release
12.2(18)EW
Usage Guidelines This command is not supported on Supervisor Engine 6-E, Supervisor Engine 6L-E, Catalyst 4900M,
Catalyst 4948E, and Catalyst 4948E-F.
Traffic shaping is available on all the ports, and it sets an upper limit on the bandwidth.
When the high shape rates are configured on the Catalyst 4500 the Catalyst 4500 Supervisor Engine V
(WS-X4516) and the Catalyst 4500 Supervisor Engine V-10GE (WS-X4516-10GE), the shaped traffic
rate may not be achieved in situations that involve contention and unusual packet size distributions. On
the ports that are multiplexed through a Stub ASIC and connected to the backplane gigaports, the shape
rates above 7 Mbps may not be achieved under worst-case conditions. On ports that are connected
directly to the backplane gigaports, or the supervisor engine gigaports, the shape rates above 50 Mbps
may not be achieved under worst-case conditions.
Some examples of ports that are connected directly to the backplane are as follows:
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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release XE 3.9.xE and 15.2(5)Ex
2-670
shape [rate] [percent]
no shape [rate] [percent]
(Optional) Specifies an average rate for traffic shaping; the range is 16000 to
1000000000. Post-fix notation (k, m, and g) is optional and a decimal point is
allowed.
(Optional) Specifies a percent of bandwidth for traffic shaping.
Modification
This command was introduced on the Catalyst 4500 series switch.
Uplink ports on Supervisor Engine V and V-10GE
Ports on the WS-X4306-GB module
The two 1000BASE-X ports on the WS-X4232-GB-RJ module
The first two ports on the WS-X4418-GB module
The two 1000BASE-X ports on the WS-X4412-2GB-TX module
Chapter 2