Interface Configuration
7210 SAS M, T, X, R6, R12, Mxp, S, Sx Interface Configuration Guide Page 183
dot1q-etype
Syntax dot1q-etype 0x0600..0xffff
no dot1q-etype
Context config>port>ethernet
Description Platforms Supported: 7210 SAS-M, 7210 SAS-X, 7210 SAS-Mxp, 7210 SAS-Sx/S 1/10GE,7210 SAS-Sx
10/100GE, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-T.
This command specifies the Ethertype expected when the port's encapsualtion type is dot1q. Dot1q
encapsulation is supported only on Ethernet interfaces.
When the dot1-etype is configured to a value other than 0x8100 (the default value) on a port, the outermost
tag in the received packet is matched against the configured value and if there is a match then it is treated as
a Dot1q packet and the VLAN ID is used to match against the configured Dot1q SAPs on the port to find the
Dot1q SAP the packet should be matched to.
NOTES:
• This command does not change the etype used to match the inner tag for a QinQ SAP. The 7210 SAS
devices always uses 0x8100 for matching the inner tag etype. In other words, if this command is config-
ured on a port configured for QinQ encapsulation, then it is ignored and 0x8100 is used always.
• This command takes effect only for access ports and hybrid ports. On hybrid ports, it applies to all traf-
fic (that is, traffic mapped to SAPs and network IP interfaces). It is not supported for network ports.
• Dot1q-preserve SAPs cannot be configured on dot1q encap ports configured to use ethertype other than
0x8100.
• Priority tagged packet received with etype 0x8100 on a dot1q port configured with etype 0x9100 is
classified as a priority tagged packet and mapped to a dot1q:0 SAP (if configured) and the priority tag is
removed.
• Priority tagged packets received with etype 0x6666 (any value other than 0x8100) on a dot1q port con-
figured with etype 0x9100 is classified as null-tagged packet and mapped to a dot1q:0 SAP (if config-
ured) and the priority tag is retained and forwarded as expected.
• The maximum number of unique dot1q-etypes configurable per node is limited. The resources needed
for configuration of dot1q-etype is shared by the default dot1q-etype, default qinq-etype and user con-
figured values for qinq-etype. In other words, the number of unique dot1q-etypes allowed decreases, if
the number of unique qinq-etype configured is more. The converse is also true.
The no form of this command reverts the dot1q-etype value to the default.
Parameters 0x0600..0xffff — Specifies the Ethertype to expect.
Default If the encap-type is dot1p, then the default is 0x8100.
If the encap-type is qinq, then the default is 0x8100.
Values <0x0600..0xffff> : [1536..65535] - accepts in decimal or hex
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