V5 protocol: Multi-Links

The V5.2 protocol specifies a use of 1 to 16 links. The management of the links is included in the following standard: ETSI ETS300 347-1

The purpose of the document is to bring information about the options supported by the Clarinet simulation.

E1 interfaces

By the selection of V5x type in the profile, Clarinet allows to manage a V5.2 interface: the 'Multi-clarinet" indication corresponds to a group of 1 to 6 Clarinet Units, each of them corresponding to an E1 interface.

The SHIFT and CTRL keys allow to select the group.

Links

Each E1 interface corresponds to a V5.2 LINK. A link ID is allocated to each of them in the panel.

C-Channels

The number of physical C-channels is specified by entering the value in the field of the panel. Each E1 interface of Clarinet supports up to 2 physical C channels. The panel is automatically updated to display the list of the physical C-Channels as specified in the standard (all the TS16's and then all the TS15's)

The logical C-channels are specified by the value of the Logical ID. If no value is specified, the C-channel is in STANDBY state. If a value is specified, it is in ACTIVE state

The V5.2 standard includes the following definitions:

  • Primary Link: the 2048 kbits/s Link in a multi-link V5.2 interface whose physical C-channel in TS 16 carries a C-path for the protection protocol and on V5.2 initialization, also the C-path for the control protocol, link control protocol, and the BCC protocol. Other C-paths may also be carried in the same TS16
  • Secondary Link: the 2048 kbits/s Link in a multi-link V5.2 interface whose physical C-channel in TS 16 carries a C-path for the protection protocol and on V5.2 initialization, acts as the standby C-channel for the control protocol, link control protocol, and the BCC protocol.

The C-paths are allocated to the logical C-channel. The allocation of the C-path complies with the specifications of ETS300347-1 paragraph 18 and figure 25.

Resulting from application of the V5.2 standard are the definition of following features for Clarinet:

  • Primary Link: the E1 interface of the first Clarinet defined in the 'Multi-Clarinet' set
  • Secondary Link: the E1 interface of the second Clarinet defined in the 'Multi-Clarinet' set
  • Group 1: TS16 of Primary +Secondary Links
  • Group 2: all other TS's.
  • Protection protocol: Carried in TS16 of Primary Link and TS16 of Secondary Link.
  • control protocol, link control protocol, and the BCC protocol: at the initialization carried in TS16 of Primary Link.
  • PSTN or ISDN C-paths: they can be initialized in any logical C-channel either in Group 1 or Group 2.

 

 

 

home     Quick start     Specifications     Connections     Features     How to?     Notes     Search     Site Map

updated:  27-Feb-04