Specifications

IP Switching Commands
ip cef linecard ipc memory
ISW-38
Cisco IOS IP Switching Command Reference
May 2008
ip cef linecard ipc memory
To configure the line card memory pool for the Cisco Express Forwarding (CEF) queuing messages, use
the ip cef linecard ipc memory command in global configuration mode. To return to the default
Inter-process Communications (IPC) memory allocation, use the no form of this command.
ip cef linecard ipc memory kbps
no ip cef linecard ipc memory kbps
Syntax Description
Defaults Default IPC memory allocation is 25 messages. However, this value depends on the switching platform.
Command Modes Global configuration
Command History
Usage Guidelines This command is available only on distributed switching platforms.
If you are expecting large routing updates to the Route Processor (RP), use this command to allocate a
larger memory pool on the line cards for queuing CEF routing update messages. The memory pool
reduces the transient memory requirements on the RP.
To display and monitor the current size of the CEF message queues, use the show cef linecard command.
Also, the peak size is recorded and displayed when you use the detail keyword.
Examples The following example shows how to configure the CEF line card memory queue to 128000 kilobytes
per second:
Router(config)# ip cef linecard ipc memory 128000
Related Commands
kbps Kilobytes of line card memory allocated. Range is 0 to 12800.
Release Modification
12.2(2)T This command was introduced.
Command Description
show cef linecard Displays detailed CEF information for the specified line card.