User's Manual

Chapter 7: Configuration
Configuring IP and Ethernet interfaces
Page 7-51
VLAN page of SM
The VLAN tab of SM/BHS is explained in Table 106.
Table 106 SM VLAN attributes
Attribute
Meaning
VLAN Port Type
By default this is Q, indicating that it is to operate in the existing manner.
The other option is Q-in-Q, which indicates that it must be adding and
removing the S-Tag, and adding a C-Tag if necessary for untagged
packets. The VLAN Port type corresponds to the Ethernet port of the
SM/BHS. Currently, the internal management interfaces will always
operate as Q ports.