- ACP123(B) Published
- NEDS procurement have issued amendment 11 and extended the bid submission date to 3rd March 2010
- Isode announce addition of new product, M-Link Edge, to R14.6 release
- ESS equivalentLabels mandatory in STANAG 4631
- Management Buy In Of Clearswift Specialist Products Division
- Boldon James joins Transglobal Secure Collaboration Program
- Isode Adopts XML Security Policies
- ACP133 8 Years On
- RFC Search
- Canadian MMHS adopts Web-based Solution
Tactical Messaging
Annex E describes a number tactical profiles for the interconnection of NATO MMHS over reduced capacity and emission controlled links/networks.
It removes the OSI presentation and session layers introduces a two new sub-layers:
- Tactical Adapation - an application-layer based compression mechansim
- P_MUL - an multi-cast, connection-less protocol defined in ACP 142
The Annex introduces 5 profiles, or Tactical Messaging Interaces (TMIs), for various messaging scenarios:
| TMI | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Scenario | MTA <-> MTA | MTA <-> MS/UA | MS <-> UA | UA <-> UA | MTA <-> ACP 127 |
| Messaging | P1 | P3 | P7 | P772 | Annex D |
| Tactical Adaptation | Compressed Data Type | Compressed Data Type | Compressed Data Type | Compressed Data Type | - |
| P_MUL | ACP 142 | ACP 142 | ACP 142 | - | - |
| Transport | WAP WDP | WAP WDP | WAP WDP | WAP WDP | - |
TMI-1 is the only mandatory profile in the Annex, all the others are optional. The Annex does not appear to describe the operation TMI-2 and TMI-3 interfaces sufficiently well to support their implementation. In addition, P7 doesn't really benefit from a multi-cast, emcon environment. These two interfaces may consequently not been seen as useful at this time.
TMI-5 is exactly STANAG 4406 Ed.1 Annex D and introduces no new functionality but is included for completeness.
MMHS Components that use these profiles are described as "Light". Thus a "Light UA" is one that uses the TMI-2, TMI-3 or TMI-4 interfaces; a "Light MTA" is one that uses the TMI-1 or TMI-3 interfaces.
The interface strategic and tactical MMHS systems is known as a Tactical Interface Agent (TIA) and is logically either a Light MTA, a Light MS or an ACP 127 gateway.