encapsulation
Use encapsulation to configure a frame match criterion for an Ethernet service instance.
Use undo encapsulation to restore the default.
Syntax
encapsulation s-vid vlan-id-list c-vid vlan-id-list
encapsulation s-vid vlan-id [ only-tagged ]
encapsulation { default | untagged }
undo encapsulation
Default
An Ethernet service instance does not contain a frame match criterion.
Views
Ethernet service instance view
Predefined user roles
network-admin
Parameters
c-vid: Matches frames that are tagged with the specified inner 802.1Q VLAN IDs.
s-vid: Matches frames that are tagged with the specified outer 802.1Q VLAN IDs.
vlan-id: Specifies an 802.1Q VLAN ID in the range of 1 to 4094.
vlan-id-list: Specifies a space-separated list of up to eight VLAN items. Each item specifies a VLAN ID or a range of VLAN IDs in the format of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094.
only-tagged: Matches tagged frames. If the outer 802.1Q VLAN is not the PVID, the matching result does not differ, whether or not you specify the only-tagged keyword. If the outer 802.1Q VLAN is the PVID, the matching result depends on whether or not the only-tagged keyword is specified.
To match only PVID-tagged frames, specify the only-tagged keyword.
To match both untagged frames and PVID-tagged frames, do not specify the only-tagged keyword.
all: Specifies all 802.1Q VLAN IDs.
default: Matches frames that do not match any other Ethernet service instance on the interface. On an interface, you can configure this criterion only in one Ethernet service instance. The Ethernet service instance matches any frames if it is the only instance on the interface.
untagged: Matches any frames that do not have an 802.1Q VLAN tag.
Usage guidelines
An Ethernet service instance can contain only one match criterion. To change the match criterion, first execute the undo encapsulation command to remove the original criterion. When you remove the match criterion in an Ethernet service instance, the mapping between the service instance and the VSI is removed automatically.
Examples
# Configure Ethernet service instance 1 on HundredGigE 1/0/1 to match frames that have an outer 802.1Q VLAN ID of 111.
<Sysname> system-view [Sysname] interface hundredgige 1/0/1 [Sysname-HundredGigE1/0/1] service-instance 1 [Sysname-HundredGigE1/0/1-srv1] encapsulation s-vid 111