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Dell Force10 C150 Configuration Guide

Dell Force10 C150
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Service Provider Bridging | 963
Enable Drop Eligibility
You must enable Drop Eligibility globally before you can honor or mark the DEI value.
When Drop Eligibility is enabled, DEI mapping or marking takes place according to the defaults. In this
case, the CFI is affected according to Table 46-3.
Honor the Incoming DEI Value
To honor the incoming DEI value, you must explicitly map the DEI bit to an FTOS drop precedence;
precedence can have one of three colors:
Task Command Syntax Command Mode
Make packets eligible for dropping based on their DEI value. By
default, packets are colored green, and DEI is marked 0 on egress.
dei enable
CONFIGURATION
Table 46-3. Drop Eligibility Behavior
Ingress Egress DEI Disabled DEI Enabled
Normal Port Normal Port Retain CFI Set CFI to 0
Trunk Port Trunk Port Retain inner tag CFI Retain inner tag CFI
Retain outer tag CFI Set outer tag CFI to 0
Access Port Trunk Port Retain inner tag CFI Retain inner tag CFI
Set outer tag CFI to 0 Set outer tag CFI to 0
Precedence Description
Green High priority packets that are the least preferred to be dropped.
Yellow Lower priority packets that are treated as best-effort.
Red Lowest priority packets that are always dropped (regardless of
congestion status).
Task Command Syntax Command Mode
Honor the incoming DEI value by mapping it to an
FTOS drop precedence. You may enter the
command once for 0 and once for 1. Packets with an
unmapped DEI value are colored green.
dei honor {0 | 1} {green | red | yellow} INTERFACE
Display the DEI-honoring configuration. show interface dei-honor [interface slot/
port | linecard number port-set number]
EXEC Privilege

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Dell Force10 C150 Specifications

General IconGeneral
BrandDell
ModelForce10 C150
CategoryServer
LanguageEnglish

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