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# Enable the RR mode on Schannel-Aggregation 1:10.
<Sysname> system-view
[Sysname] interface schannel-aggregation 1:10
[Sysname–Schannel-Aggregation1:10] evb reflective-relay
evb s-channel
Use evb s-channel to create an S-channel on an interface.
Use undo evb s-channel to remove an S-channel on an interface.
Syntax
evb s-channel channel-id service-vlan svlan-id
undo evb s-channel channel-id
Default
Only an automatically created default S-channel (with both SCID and SVID as 1) exists on an interface
with EVB enabled.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Predefined user roles
network-admin
Parameters
channel-id: Specifies an S-channel ID (SCID) in the range of 2 to 167. 0 is the reserved SCID, and 1 is the
default SCID.
svlan-id: Specifies an S-VLAN ID (SVID) in the range of 2 to 4094. 1 is the SVID for the default S-channel.
If you do not specify this argument, the system automatically assigns the minimum SVID that is not used
by other S-channels.
Usage guidelines
An S-channel interface is associated with the S-channel that is created on a Layer 2 Ethernet interface. An
S-channel aggregate interface is associated with the S-channel that is created on a Layer 2 aggregate
interface.
An S-channel is automatically created through CDCP, and the command line corresponding to the
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action is added to the configuration file on the bridge. You can also manually create an S-channel
by using this command. If an (SCID, SVID) pair for an S-channel is created both automatically and
manually, the automatically created S-channel takes precedence.
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After an S-channel is created, an S-channel interface or S-channel aggregate interface is generated.
Removing an S-channel also removes the S-channel interface or S-channel aggregate interface. A
manually created S-channel interface or S-channel aggregate interface operates in access mode,
and an S-channel interface or S-channel aggregate interface that is automatically created through
CDCP operates in trunk mode.
When you manually create an S-channel, do not use the SCID or SVID being used by any other
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S-channel. Otherwise, an error message appears.
Create an S-channel on an interface with EVB enabled. Otherwise, an error message appears.
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To manually create or remove S-channel, disable CDCP that automatically performs these
operations.
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