Filter Configuration Command Reference
570 Router Configuration Guide
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.
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>match
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
Parameters zero — Specifies to match packets with the three-byte OUI field in the SNAP-ID set to zero.
non-zero — Specifies to match packets with the three-byte OUI field in the SNAP-ID not set to
zero.
snap-pid
Syntax snap-pid snap-pid
no snap-pid
Context config>filter>mac-filter>entry>match
Description Configures an IEEE 802.3 LLC SNAP Ethernet Frame PID value to be used as a MAC filter match
criterion.
This is a two-byte protocol id that is part of the IEEE 802.3 LLC SNAP Ethernet Frame that follows
the three-byte OUI field.
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