Dell C9010 Modular Chassis Switch EMC Networking Command-Line Reference Guide - Page 509
Unified Forwarding Table Modes
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Usage Information Example Version 9.9(0.0) 9.2(1.0) 8.3.19.0 8.3.11.1 8.3.7.0 7.8.1.0 Description Introduced on the C9010. Introduced on the Z9500. Introduced on the S4820T. Introduced on the Z9000. Introduced on the S4810. Introduced. This command applies to both IPv4 and IPv6 CAM Profiles, but is best used when verifying QoS optimization for IPv6 ACLs. QoS Optimization for IPv6 ACLs does not impact the CAM usage for applying a policy on a single (or the first of several) interfaces. It is most useful when a policy is applied across multiple interfaces; it can reduce the impact to CAM usage across subsequent interfaces. The following describes the test cam-usage command shown in the following example. Term Explanation Linecard Portpipe CAM Partition Available CAM Estimated CAM per Port Status Lists the line cards that are checked. Entering all displays the status for line cards in the chassis. Lists the port pipes (port sets) that are checked. Entering all displays the status for all line cards and port pipes in the chassis. Shows the CAM profile of the CAM. Identifies the amount of CAM space remaining for that profile. Estimates the amount of CAM space the listed policy will require. Indicates whether or not the policy will be allowed in the CAM. Dell# test cam-usage service-policy input pcam linecard all linecard |Portpipe|CAM Partition|Available CAM |Estimated CAM per Port| Status 0 | 0 | IPv4Flow | 408 | 1 | Allowed (408) 0 | 1 | IPv4Flow | 408 | 1 | Allowed (408) 0 | 2 | IPv4Flow | 408 | 1 | Allowed (408) 1 | 0 | IPv4Flow | 408 | 1 | Allowed (408) 1 | 1 | IPv4Flow | 408 | 1 | Allowed (408) 1 | 2 | IPv4Flow | 408 | 1 | Allowed (408) 1 | 3 | IPv4Flow | 408 | 1 | Allowed (408) 2 | 0 | IPv4Flow | 408 | 1 | Allowed (408) 2 | 1 | IPv4Flow | 408 | 1 | Allowed (408) 2 | 2 | IPv4Flow | 408 | 1 | Allowed (408) 2 | 3 | IPv4Flow | 408 | 1 | Allowed (408) Unified Forwarding Table Modes Unified Forwarding Table (UFT) consolidates the resources of several search tables (Layer 2, Layer 3 Hosts, and Layer 3 Route [Longest Prefix Match - LPM]) into a single flexible resource. Trident 2 supports several UFT modes to extract the forwarding tables, as required. By default, Dell Networking OS initializes the table sizes to UFT mode 2 profile, since it provides a reasonable shared memory for all the tables. The other supported UFT modes are scaled-l3-hosts (UFT mode 3) and scaled-l3-routes (UFT mode 4). Important Points to Remember ● All line cards/Stack Members within a single system must have the same UFT mode profiles. this profile must match the system UFT mode profile (the profile on the primary route processor module [RPM]/ Master Unit of the Stack). Content Addressable Memory (CAM) 509
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