Setup Guide

• Use the eg-default CAM prole in a chassis that has only EG Series line cards. If this prole is used in a chassis with non-EG line cards,
the non-EG line cards enter a problem state.
• Before moving a card to a new chassis, change the CAM prole on a card to match the new system prole.
• After installing a secondary RPM into a chassis, copy the running-conguration to the startup-conguration.
• Change to the default prole if downgrading to a Dell EMC Networking OS version earlier than 6.3.1.1.
• Use the CONFIGURATION mode commands so that the prole is change throughout the system.
• Use the EXEC Privilege mode commands to match the prole of a component to the prole of the target system.
QoS CAM Region Limitation
To store QoS service policies, the default CAM prole allocates a partition within the IPv4Flow region.
If the QoS CAM space is exceeded, a message similar to the following displays.
If you exceed the QoS CAM space, follow these steps.
1 Verify that you have congured a CAM prole that allocates 24 K entries to the IPv4 system ow region.
2 Allocate more entries in the IPv4Flow region to QoS.
Dell EMC Networking OS supports the ability to view the actual CAM usage before applying a service-policy. The test cam-usage
service-policy command provides this test framework. For more information, refer to Pre-Calculating Available QoS CAM Space.
Syslog Error When the Table is Full
In the Dell EMC Networking OS, the table full condition is displayed as CAM full only for LPM. But now the LPM is split into two tables.
There are two syslog errors that are displayed:
1 /65 to /128 Table full.
2 0/0 – 0/64 Table full.
A table-full error message is displayed once the number of entries is crossed the table size. Table-full message is generated only once when
it crosses the threshold. For subsequent addition of entries, the table-full message is not recorded you clear the table-full message. The
table-full message is cleared internally when the number of entries is less than the table size.
Syslog Warning Upon 90 Percent Utilization of CAM
CAM utilization includes both the L3_DEFIP and L3_DEFIP_PAIR_128 table entries to calculate the utilization.
Syslog Warning for Discrepancies Between Congured
Extended Prexes
An error message is displayed if the number of extended prex entries is dierent from the congured value during bootup.
Unied Forwarding Table (UFT) Modes
Unied Forwarding Table (UFT) consolidates the resources of several search tables (Layer 2, Layer 3 Hosts, and Layer 3 Route [Longest
Prex Match — LPM]) into a single exible resource. Dell EMC Networking OS supports several UFT modes to extract the forwarding
tables, as required. By default, Dell EMC Networking OS initializes the table sizes to UFT mode 2 prole, 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).
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Content Addressable Memory (CAM)