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is still the second tag carried transparently through the service.) On ingress SAPs that strip any tags,
inner-tag will contain 0 even if there are more than 2 tags on the frame.
The optional vid_mask is defaulted to 4095 (exact match) but may be specified to allow pattern
matching. The masking operation is ((value and vid-mask) = = (tag and vid-mask)). A value of 6 and
a mask of 7 would match all VIDs with the lower 3 bits set to 6.
Note for QoS the VID type cannot be specified on the default QoS policy.
The default vid-mask is set to 4095 for exact match.
outer-tag
Syntax
outer-tag value [vid-mask]
no outer-tag
Context
config>filter>mac-filter>entry>match
Description
This command configures the matching of the first tag that is carried transparently through the
service. Service delimiting tags are stripped from the frame and outer tag on ingress is the first tag
after any service delimiting tags. Outer tag is the first tag before any service delimiting tags on
egress. This allows matching VLAN tags for explicit filtering or QoS setting when using default or
null encapsulations.
On dot1Q SAPs outer-tag is the only tag that can be matched. On dot1Q SAPs with exact match (sap
2/1/1:50) the outer-tag will be populated with the next tag that is carried transparently through the
service or 0 if there is no additional VLAN tags on the frame.
On QinQ SAPs that strip a single service delimiting tag, outer-tag will contain the next tag (which is
still the first tag carried transparently through the service.) On SAPs with two service delimiting tags
(two tags stripped) outer-tag will contain 0 even if there are more than 2 tags on the frame.
The optional vid_mask is defaulted to 4095 (exact match) but may be specified to allow pattern
matching. The masking operation is ((value & vid-mask) = = (tag & vid-mask)). A value of 6 and a
mask of 7 would match all VIDs with the lower 3 bits set to 6.
Note for QoS the VID type cannot be specified on the default QoS policy.
The default vid-mask is set to 4095 for exact match.
snap-oui
Syntax
snap-oui [zero | non-zero]
no snap-oui
Context
config>filter>mac-filter>entry
Description
This command configures an IEEE 802.3 LLC SNAP Ethernet Frame OUI zero or non-zero value to
be used as a MAC filter match criterion.
The no form of the command removes the criterion from the match criteria.
Default
no snap-oui
7450 ESS OS Router Configuration Guide
Filter Policies
Page 389
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