Configuration Guidelines for 7210 SAS-D
Page 92 7210 SAS D, E, K OS Quality of Service Guide
Configuration Guidelines for 7210 SAS-D
The following are configuration Guidelines for DEI based classification and marking:
• While disabling DEI based classification on a port, all the meters used by the SAPs
configured on this port must be in color blind mode. The converse is also true, that is,
while attaching a sap-ingress qos policy with meter as color aware to a SAP, the DEI based
classification must have been enabled on the port on which SAP exists.
• While configuring DEI based classification in a network port ingress policy, only dot1p
classification can be used.
• DEI classification must be disabled on that port prior to changing the mode from one
mode (access/network/hybrid) to another mode.
• All the ports under a LAG should have the same configuration for DEI classification
(enable/disable). If the LAG configuration changes, the port configuration also will be
updated accordingly. Port configuration under the LAG cannot be changed.
• While enabling DEI based policing on a port, if it is a hybrid port, then the network port
ingress qos policy must use only dot1p mappings for classification and all the configured
profiles must be 'use_dei' (not 'in' or 'out'). This is true even if only SAPs are configured
on the port.
NOTES:
→ Only after attaching a network port ingress qos policy as mentioned above, the user
will be able to enable DEI classification on a port.
→ For more information of DEI classification on a Lag and Port, see the 7210 SAS
Interfaces Configuration User Guides.
• While configuring the profile on a network port policy for dot1p classification, if the
policy is attached to a hybrid port on which DEI classification is enabled, the profile
cannot be changed to 'in' or 'out'. In other words, only DEI bits can be used for profile
configuration.
• While attaching a network qos policy to a hybrid port, all the dot1p mappings including
the default mapping should use only the DEI as profile, if DEI classification is enabled on
this port.
NOTES:
→ DEI based classification cannot be configured for IP interfaces.
→ Only MPLS EXP based classification is available as before for IP interfaces. DEI
based classification is not supported on 7210 SAS-E devices.
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