Enable Drop Eligibility; Honor The Incoming Dei Value - Dell Force10 S4810P Configuration Manual

Enable Drop Eligibility

You must enable Drop Eligibility globally before you can honor or mark the DEI value.
Task
Make packets eligible for dropping based on their DEI value. By
default, packets are colored green, and DEI is marked 0 on egress.
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 44-3. Drop Eligibility Behavior
Ingress Egress
Normal Port Normal Port
Trunk Port Trunk Port
Access Port Trunk Port

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:
Precedence
Green
Yellow
Red
Task
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.
Display the DEI-honoring configuration.
Table
DEI Disabled
Retain CFI
Retain inner tag CFI
Retain outer tag CFI
Retain inner tag CFI
Set outer tag CFI to 0
Description
High priority packets that are the least preferred to be dropped.
Lower priority packets that are treated as best-effort.
Lowest priority packets that are always dropped (regardless of
congestion status).
Command Syntax
dei enable
44-3.
Command Syntax
{ | } { |
dei honor 0 1 green red
[
show interface dei-honor interface slot
|
linecard number port-set number
Command Mode
CONFIGURATION
DEI Enabled
Set CFI to 0
Retain inner tag CFI
Set outer tag CFI to 0
Retain inner tag CFI
Set outer tag CFI to 0
Command Mode
| } INTERFACE
yellow
/ EXEC Privilege
port
]
Service Provider Bridging | 925