Service Manual

Usage
Information
The VLAN ContentAware Processor (VCAP) application is a pre-ingress CAP that modifies the VLAN
settings before packets are forwarded. To support the ACL CAM optimization functionality, the CAM
carving feature is enhanced. A total of four VACP groups are present, of which two are for fixed groups
and the other two are for dynamic groups. Out of the total of two dynamic groups, you can allocate zero,
one, or two flow processor (FP) blocks to iSCSI Counters, OpenFlow and ACL Optimization. You can
configure only two of these features at a point in time.
show cam-usage
View the amount of CAM space available, used, and remaining in each partition (including IPv4Flow and Layer 2 ACL sub-
partitions).
Syntax
show cam-usage [acl | router | switch]
Parameters
acl
(OPTIONAL) Enter the keyword acl to display Layer 2 and Layer 3 ACL CAM
usage.
router
(OPTIONAL) Enter the keyword router to display Layer 3 CAM usage.
switch
(OPTIONAL) Enter the keyword switch to display Layer 2 CAM usage.
Command Modes
EXEC
EXEC Privilege
Command
History
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.3.(0.0) Introduced on the S4810, S4820T, Z9000 and MXL platforms
Usage
Information
The following regions must be provided in the show cam-usage output:
● L3AclCam
● L2AclCam
● V6AclCam
The following table describes the output fields of this show command:
Field Description
LineCard Number of the line card that contains information on ACL VLAN groups
Portpipe The hardware path that packets follow through a system for ACL optimization
CAM-Region Type of area in the CAM block that is used for ACL VLAN groups
Total CAM space Total amount of space in the CAM block
Used CAM Amount of CAM space that is currently in use
Available CAM Amount of CAM space that is free and remaining to be allocated for ACLs
Example 1:
Output of the
show cam-usage
Command
Dell#show cam-usage
Linecard|Portpipe|CAMPartition |TotalCAM|UsedCAM|AvailableCAM
========|========|==============|========|=======|===========
1 | 0 |IN-L2 ACL | 1008| 320| 688
| |IN-L2 FIB | 32768| 1132| 31636
| |IN-L3 ACL | 12288| 2| 12286
| |IN-L3 FIB | 262141| 14| 262127
| |IN-L3-SysFlow | 2878| 45| 2833
| |IN-L3-TrcList | 1024| 0| 1024
Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM) 303