Nortel Networks NTRN10AN, 3500 manual Traffic flow over OC-192 Blsr, VT Blsr with full VT access

2-32Operation, administration, and maintenance (OAM) features

VT assigned end-to-end connections necessarily possess the following characteristics:

•For any given end-to-end VT connection, add and drop nodes must be provisioned with VT connections and pass-through nodes must be provisioned with STS connections

•If one VT end-to-end connection within an STS is provisioned as VT assigned, then all of the VTs within that STS must be VT assigned

•All VT assigned end-to-end connections within an STS channel must terminate (add/drop) at the same node

•All of the VTs within an STS channel must terminate (add/drop) at the same node

VT BLSR with full VT access

OPTera Metro 3500 supports full VT access (Full VT mode) in a BLSR. When an end-to-end connection is provisioned as Full VT, all nodes along the length of the connection (add, drop, and pass-through) are VT connections. In addition, VTs in a given STS can be added and dropped to and from any where in the network. This optimizes bandwidth efficiency and provisioning flexibility.

Note: Full VT mode is only supported in OC-48 BLSR rings wherein all the nodes are OPTera Metro 3500 network elements equipped with VTX-series circuit packs.

Traffic flow over OC-192 BLSR

OC-192 BLSR is supported on OPTera Metro 3500 shelves equipped with OC-192 circuit packs in slots 11 and 12 and with STX-192 circuit packs in slots 13 and 14.

STS BLSR

The STX-192 circuit pack supports STS-managed traffic only,

The BLSR topology of OPTera Metro 3500 supports interoperability with OPTera Connect DX at the OC-192 line rate.

OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004