Nortel Networks NTRN10AN, 3500 manual User interface, Site Manager

2-168Operation, administration, and maintenance (OAM) features

Engineering rules

The following engineering rules apply to the test access feature:

•Optical TAPs must be in unprotected mode.

•A TAP can simultaneously accommodate connections form more than one interface (until the TAP capacity is reached).

•For shelves equipped with the STX-192 circuit pack, the SONET signal routed to the TAP is down to STS-1 granularity and can include concatenated paths or whole line to the 2.48 Gbit/s rate accommodate.

•For shelves equipped with the VTX-series circuit pack, the SONET signal routed to the TAP is down to VT1.5 granularity and can include concatenated paths or whole line to the 622 Mbit/s rate accommodate.

•Multiple test access ports can be provisioned on an OPTera Metro 3500 shelf.

—The maximum number of TAPs that can be provisioned on a shelf is equal to the maximum number of working ports the shelf configuration can support in slots 3 through 10.

•If a test access session (monitor or split) is active, changing the protection scheme for any electrical or optical interface on the network element is prevented.

•The TAP must be defined before a test access connection can be provisioned

•Only test access connections can use the TAP.

•Optical interfaces in slots 11 and 12 can not be used as test access ports.

•Test access connections are deleted and original connections restored:

—if the SPx or the circuit pack of the TAP is replaced.

—during SPx or the circuit pack of the TAP restarts (warm/cold).

—during brownouts.

•Test access connections are maintained:

—during restarts (warm/cold) of interface under test.

User interface

Site Manager

Site Manager Release 6.0 introduced a new application called Test Access Session Management. This application allows user to manage their test access sessions from Site Manager. This application is a nodal application, so test access sessions can only be managed on one network element.

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