Configuring VLAN Stacking Configuring Service-Based VLAN Stacking
OmniSwitch 6800/6850/9000 Network Configuration Guide March 2008 page 6-23
Consider the following when configuring the type of customer traffic to tunnel:
• If no customer traffic is associated with a VLAN Stacking SAP, then the SAP does not process any
traffic for the service.
• Only one all or untagged designation is allowed for any given SAP; specifying both for the same SAP
is not allowed.
• Only one untagged designation is allowed per UNI port, even if the UNI port is associated with multi-
ple SAPs.
• Only one all designation is allowed per UNI port, even if the UNI port is associated with multiple
SAPs.
• Associating customer traffic with a service using an IP Multicast VLAN (IPMVLAN) is not allowed.
Use the show ethernet-service command to display the type of customer traffic associated with each SAP
configured for the switch
Configuring a Service Access Point Profile
The ethernet-service sap-profile command is used to create a VLAN Stacking service access point (SAP)
profile. The SAP profile defines the following traffic engineering attributes that are applied to customer
traffic that is accepted on the SAP UNI ports.
• Ingress bandwidth sharing. Specifies if bandwidth is shared across UNI ports and CVLANs. Band-
width is shared by default.
• Ingress rate limiting. Specifies in bits per second the rate at which customer frames ingress on UNI
ports. The ingress bandwidth limit is set to 10 mbps by default.
• Double-tag or translate. Determines if a customer frame is tagged with the SVLAN ID (double-tag)
or the CVLAN ID is changed to the SVLAN ID (translate) when the frame is encapsulated for tunnel-
ing. Double-tag is used by default.
• Priority mapping. Determines if the CVLAN (inner tag) 802.1p or DSCP value is mapped to the
SVLAN (outer tag) 802.1p value or if a fixed priority value is used for the SVLAN 802.1p value.
Priority mapping is set to a fixed rate of zero by default.
A default profile, named “default-sap-profile”, is automatically assigned to the SAP at the time the SAP is
created (see “Configuring a VLAN Stacking Service Access Point” on page 6-20). It is only necessary to
create a new profile to specify different attribute values if the default profile values (see above) are not
sufficient.
The following command provides an example of creating a new SAP profile to specify a different method
for mapping the SVLAN priority value:
-> ethernet-service sap-profile map_pbit priority map-inner-to-outer-p
In this example the map_pbit profile specifies priority mapping of the CVLAN inner tag 802.1p value to
the SVLAN outer tag value. The other attributes in this profile are set to their default values.
To delete a SAP profile, use the no form of the ethernet-service sap-profile command. For example, the
following command deletes the map_pbit profile:
-> no ethernet-service sap-profile map_pbit
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