Motorola 3460 Manuel d'utilisateur télécharger pdf (Page 31)

MID AFTN/CIDIN Routing Directory Explanation(2)

1.4.

Virtual Circuit Groups (VCG)

Actual

VCG

Actual

Prim.VC

Actual

Secondary

VC’s

Planned

VCG

Planned

Prim.VC

Planned

Secondary

VC’s

HECA HECA1

LCNC LCNC1

OLBA OLBA OLBA

Actual

VCG

A Virtual Circuit Group consists of a number of Virtual Circuits (VC) that connect two, and only two CIDIN

Centres. A Primary-type VC is always present and a Secondary-type VC is optional. Within this group, the

selection of the VC is local matter. VC groups form redundant connections between adjacent CIDIN Centres.

Actual

Primary

Primary Virtual Circuit, established actual either as a PVC (Permanent Virtual Circuit) or SVC (Switched

Virtual Circuit). In case of SVC no Secondary Virtual Circuits are recommended.

Actual

Secon-

dary VC’s

Actual Secondary VC’s: Secondary Virtual Circuits, established actual either as a set of PVC (Permanent

Virtual Circuit) and/or a SVC (Switched Virtual Circuit). There is no maximum limit to the number of PVC’s

forming a VCG.

Planned

Primary

The planned Primary Virtual Circuit will replace the Actual Primary VC in the future on a planned date.

Planned

Secon-

dary VC’s

The planned Secondary Virtual Circuits will replace the Actual Alternate VC (see below).

1.5. Circuit Characteristics

Situation recorded in Nov 1998 Planned

Link to Protocol Capacity (bps) Protocol Capacity(bps) "O" date

HECA AFTN 2 x 2.4k CIDIN 1 x 9.6k TBD

OLBA CIDIN 1 x 9.6k

OKBK AFTN 1 x 300

OOMS AFTN 1 x 50

VTBB AFTN 1 x 2.4k

Link to

Connection to the COM Centre represented by the location indicator.

Protocol

Protocol used actual on this link (conventional AFTN, AFTN over X.25, CIDIN via PVC or CIDIN via SVC).

Capacity

(bps)

Actual capacity available (bit per seconds). An asterisk (*) indicates a network connection.

Planned

Protocol

Protocol planned to be used on the upgraded/new link.

Capacity

(bps)

Planned capacity of the link (bit per seconds).

”O” date

Planned operational date of the upgraded/new link.

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Motorola 3460 Manuel d'utilisateur Page 31

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