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Cisco ONS 15454 SDH Installation and Operations Guide, R3.3
May 2002
Chapter 9 Ethernet Operation
E Series VLAN Support
If a port is a trunk port, it connects multiple VLANs to an external device, such as a switch, which also
supports trunking. A trunk port must have tagging (802.1Q) enabled for all the VLANs that connect to
that external device. Choose Tagged at all VLAN rows that need to be trunked. Choose Untag at one or
more VLAN rows in the trunk port’s column that do not need to be trunked, for example, the default
VLAN. Each Ethernet port must attached to at least one untagged VLAN.
Step 4 After each port is in the appropriate VLAN, click Apply.
Note If Tagged is chosen, the attached external devices must recognize IEEE 802.1Q VLANs.
Note Both ports on individual E1000-2-G cards cannot be members of the same VLAN.
Table 9-6 Port Settings
Setting Description
-- A port marked with this symbol does not belong to the VLAN.
Untag The ONS 15454 SDH will tag ingress frames and strip tags from egress
frames.
Tagged The ONS 15454 SDH will handle ingress frames according to VLAN ID;
egress frames will not have their tags removed.
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