Administrator Guide

Table Of Contents
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After being re-tagged by dynamic CoS for 802.1X, packets are forwarded in the switch according to their new CoS priority.
When a supplicant logs off from an 802.1X authentication session, the dynamic CoS table is deleted or reset. When an
802.1x session is re-authenticated, the previously assigned CoS table is retained through the re-authentication process. If
the re-authentication fails, the CoS table is deleted. If the re-authentication is successful and the authentication server
does not include a CoS table in the AUTH-ACCEPT packet, the previously assigned CoS table MUST be deleted. If the
re-authentication is successful and the server sends a CoS table, the old CoS table is overwritten with the new one.
If multi-supplicant authentication mode is enabled on a port, you can configure a CoS mapping table for specified MAC
addresses in the RADIUS server. Dell Networking OS then maintains a per-MAC CoS table for each port, and marks the
priority of all traffic originating from a configured MAC address with the corresponding table value.
To display the CoS priority-mapping table provided by the RADIUS server and applied to authenticated supplicants on an
802.1X-enabled port, enter the show dot1x cos-mapping interface command.
802.1X 105