Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 109
User-Configurable CAM Allocation, Allocating CAM for Ingress ACLs on the Port Extender, Example of
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Parameters • line card - Enter the linecard keyword and one of the following options: - linecard number (from 0 to 11) and then the port-set keyword and number. - All to specify all line card numbers and then the port-set keyword and number. • stack-unit stack-unit-number - Enter the keyword stack-unit and then the stack unit number. The range is 0-7. • pe pe-id - Enter the keyword pe and then the port-extender ID. The range is from 0 to 255 • port-set port-set - Enter the port-set keyword and then a port pipe/number. This is optional parameter with the linecard all option. • policy-input map policy-map-input-name - Enter the input policy map name (maximum of 32 characters). Example of the test cam-usage Command DELL#test cam-usage service-policy input L3 linecard 0 port-set 0 Linecard|Portpipe|CAM Partition|Available CAM|Estimated CAM per Port|Status 0 | 0 |L3QOS | 488 | 0 Allowed DELL#test cam-usage service-policy input L3 pe-unit 0 stack-unit 0 port-set 0 PE Unit|Stack-unit|Portpipe|CAM Partition|Available CAM|Estimated CAM per Port|Status 0 | 0 | 0 | L3QOS | 488 0 | Allowed User-Configurable CAM Allocation User-configurable content-addressable memory (CAM) allows you to specify the amount of memory space that you want to allocate for ACLs. To allocate ACL CAM, use the cam-acl command in CONFIGURATION mode. For information about how to allocate CAM for ACL VLANs, see Allocating ACL VLAN CAM. The CAM space is allotted in filter processor (FP) blocks. The total amount of space allowed is 12 FP Blocks. System flow requires four blocks; these blocks cannot be reallocated. The ipv4acl profile range is from 0 to 8. When configuring space foripv6acl, the total number of Blocks must equal 12. The ipv6acl allocation must be a factor of 2 (2, 4). If allocation values are not entered for the CAM regions, the value is 0. Save the new CAM settings to the startup-config (use write-mem or copy run start) then reload the system for the new settings to take effect. Allocating CAM for Ingress ACLs on the Port Extender To allocate Content Addressable Memory (CAM) for ingress ACLs on the port extenders. You can re-allocate memory space for ACLs on the port extender by using the cam-acl-pe l2acl command in CONFIGURATION mode. CAM space is allotted in FP blocks. The total allocated CAM space must equal 12 FP blocks. Note that there are 16 FP blocks, but the System Flow requires 4 blocks that cannot be reallocated. The default CAM allocation settings for ingress ACL and QoS regions are the following: L2Acl : 5 Ipv4Acl : 4 Ipv6Acl : 0 Ipv4Qos : 2 L2Qos : 1 L2PT : 0 IpMacAcl : 0 VmanQos : 0 EcfmAcl : 0 Access Control Lists (ACLs) 109
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