Vlan Management - Cisco ONS 15454 Reference Manual

Chapter 11 Circuits and Tunnels
11.20 Reconfigured Circuits
You can reconfigure multiple circuits, which is typically necessary when a large number of circuits are
in the PARTIAL status. When reconfiguring multiple circuits, the selected circuits can be any
combination of DISCOVERED, PARTIAL, DISCOVERED_TL1, or PARTIAL_TL1 circuits. You can
reconfigure tunnels, VAP circuits, VLAN-assigned circuits, VCAT circuits, CTC-created circuits, and
TL1-created circuits. The Reconfigure command maintains the names of the original cross-connects.
Use the CTC Tools > Circuits > Reconfigure Circuits menu item to reconfigure selected circuits. During
reconfiguration, CTC reassembles all connections of the selected circuits and VCAT members into
circuits based on path size, direction, and alignment. Some circuits might merge and others might split
into multiple circuits. If the resulting circuit is a valid circuit, it appears as a DISCOVERED circuit.
Otherwise, the circuit appears as a PARTIAL or PARTIAL_TL1 circuit.
Note If CTC cannot reconfigure all members in a VCAT circuit, the reconfigure operation fails for the entire
VCAT circuit and it remains in the PARTIAL or PARTIAL_TL1 status. If CTC does reconfigure all
members in a VCAT circuit, the VCAT circuit may still remain in the PARTIAL or PARTIAL_TL1
status. This occurs if the ports defined in the VCAT termination do not match the source/drop ports of
the member circuits or if one or two VCAT terminations are missing.
PARTIAL tunnel and PARTIAL VLAN-capable circuits do not split into multiple circuits during
Note
reconfiguration.

11.21 VLAN Management

In Software Release 4.6 and later, VLANs are populated within topologies to limit broadcasts to each
topology rather than to the entire network. Using the Manage VLANs command in the Tools menu, you
can view a list of topology hosts and provisioned VLANs. You create VLANs during circuit creation or
with the Manage VLANs command. When creating a VLAN, you must identify the topology host (node)
where the VLAN will be provisioned. The Manage VLANs command also allows you to delete existing
VLANs.
11.22 Server Trails
A server trail is a non-DCC link across a third-party network that connects two CTC network domains.
A server trail allows circuit provisioning when no DCC is available. You can create server trails between
any two optical or DS-3 ports. The end ports on a server trail can be different types (for example, an
OC-3 port can connect to an OC-12 port). Server trails are not allowed on DCC-enabled ports.
A physical link must exist, end to end, and be in tact to route circuits across a server trail.
Note
The server trail link is bidirectional and can be VT1.5, VT2, STS1, STS-3c, STS-6c, STS-12c, STS-48c,
or STS-192c; you cannot upgrade an existing server trail to another size. A server trail link can be one
of the following protection types: Preemptible, Unprotected, and Fully Protected. The server trail
protection type determines the protection type for any circuits that traverse it. PCA circuits will use
server trails with the Preemptible attribute.
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11.20 11.20 Reconfigured Circuits
Cisco ONS 15454 Reference Manual, R7.0.1
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