DEI based marking on 7210 SAS-K
Page 94 7210 SAS D, E, K OS Quality of Service Guide
DEI based marking on 7210 SAS-K
DEI based marking is supported on SAP egress and access-uplink port egress. DEI bit can be used
to mark the packet to carry the profile, assigned by an operator’s trusted node at the ingress to the
carrier’s network, to the subsequent nodes in the network. It allows high-priority in-profile packet
to be allocated appropriate resources by all the network nodes on the path to the final destination.
Similarly, it allows out-of-profile packets to be treated with less preference compared to in-profile
packets by all the network nodes on the path to the final destination.
The following support is available for DEI based marking:
• Option to mark DEI bits for access SAP egress on access ports.
• Option to mark DEI bits for port egress on access uplink ports.
• By default, in-profile packets are marked with DEI bit of 0 and out-of-profile packets are
marked with DEI bit of 1. The user has an option to mark all the packets belonging to a FC
to the same DEI value irrespective of its profile using the “force-de-mark” option.
• DEI bits can be marked only if the remark policy of remark-type dot1p or dot1p-dscp is
used.
NOTE: For information on the CLI commands for DEI, see Network QoS Policy Command
Reference on page 147, Service Egress Policy Command Reference on page 393 and Service
Ingress QoS Policy Command for 7210 SAS-K on page 297.
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