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Reference Guide

ManualsBrandsDell ManualsComputer equipmentForce10 Z9000
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Content Addressable Memory (CAM) | 261
• If the packet has more than 5 MPLS labels, hashing is based on the source and destination MAC
address.
To enable this type of hashing, use the default CAM profile with the microcode
lag-hash-mpls.
LAG Hashing based on Bidirectional Flow
To hash LAG packets such that both directions of a bidirectional flow (for example, VoIP or P2P file
sharing) are mapped to the same output link in the LAG bundle, use the default CAM profile with the
microcode lag-hash-align.
CAM profile for the VLAN ACL group feature
IPv4Flow sub-partitions are supported on platform e
t
only.
To optimize for the VLAN ACL Group feature, which permits group VLANs for the IP egress ACL, use
the CAM profile
ipv4-egacl-16k with the default microcode.
Troubleshoot CAM Profiling
CAM Profile Mismatches
The CAM profile on all cards must match the system profile. In most cases, the system corrects
mismatches by copying the correct profile to the card, and rebooting the card. If three resets do not bring
up the card, or if the system is running an FTOS version prior to 6.3.1.1, the system presents an error
message. In this case, manually adjust the CAM configuration on the card to match the system
configuration.
Dell Force10recommends the following to prevent mismatches:
• Use the eg-default CAM profile in a chassis that has only EG Series line cards. If this profile 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 profile on a card to match the new system
profile.
• After installing a secondary RPM into a chassis, copy the running-configuration to the
startup-configuration.
• Change to the default profile if downgrading to and FTOS version earlier than 6.3.1.1.
• Use the CONFIGURATION mode commands so that the profile is change throughout the system.
• Use the EXEC Privilege mode commands to match the profile of a component to the profile of the
target system.
Note: Do not use this CAM profile for Layer 2 egress ACLs.