DesignXMPP arch » History » Version 17
Adrian Georgescu, 03/07/2012 09:16 AM
| 1 | 17 | Adrian Georgescu | = Gateway Architecture = |
|---|---|---|---|
| 2 | 1 | ||
| 3 | 14 | [[TOC(DesignXMPP, DesignXMPP_analysis, DesignXMPP_arch, DesignXMPP_im, depth=2)]] |
|
| 4 | 9 | ||
| 5 | 4 | The architecture of the SIP-XMPP gateway can be modeled in two different ways: |
|
| 6 | 1 | ||
| 7 | 4 | * Based on an XMPP component |
|
| 8 | * Based on an XMPP server (using server-to-server communication) |
||
| 9 | 1 | ||
| 10 | 15 | Adrian Georgescu | These approaches are not mutually exclusive, they can both be implemented at the same time and decide which one to use with a configuration option to allow different deployment scenarios. |
| 11 | 4 | ||
| 12 | 15 | Adrian Georgescu | == XMPP Component Based Architecture == |
| 13 | 2 | ||
| 14 | 5 | [[Image(xmppgw-arch-component.png, 700px, center)]] |
|
| 15 | 3 | ||
| 16 | 1 | * XMPP server (ejabberd for example) |
|
| 17 | 5 | * XMPP server plugin (divert stanzas to offline users to a given component) |
|
| 18 | 1 | * SIP Application server which is also a XMPP component |
|
| 19 | * SIP proxy (registration, AAA and routing) |
||
| 20 | 4 | ||
| 21 | 15 | Adrian Georgescu | == XMPP Server Based Architecture == |
| 22 | 10 | ||
| 23 | 4 | [[Image(xmppgw-arch-server.png, 700px, center)]] |
|
| 24 | |||
| 25 | 5 | * SIP Application server which is also a XMPP server |
|
| 26 | * SIP proxy (registration, AAA and routing) |
||
| 27 | 6 | ||
| 28 | 15 | Adrian Georgescu | == Chosen Architecture == |
| 29 | 6 | ||
| 30 | 16 | Adrian Georgescu | After experimenting with both models the chosen model to be implemented first is the '''XMPP server based architecture'''. The component based approach could be added at a later time. |
| 31 | 6 | ||
| 32 | 16 | Adrian Georgescu | The server based architecture model has a number of advantages / disadvantages: |
| 33 | 6 | ||
| 34 | * Advantages |
||
| 35 | * Less network elements involved |
||
| 36 | * Full control over XMPP routing since the server is customized |
||
| 37 | * No need for developing plugins for any XMPP server |
||
| 38 | * Disadvantages: |
||
| 39 | * Inability to use an XMPP client in the local domain |
||
| 40 | |||
| 41 | The critical factor when making this choice is the fact that if a custom XMPP server is built all the routing logic can be customized without the need of running an extra XMPP server and writing a plugin for it. Thus, this approach is more sustainable over time. |
||
| 42 | 7 | ||
| 43 | 8 | The aforementioned disadvantage would also disappear if the chosen library implemented accepting XMPP client connections, which is likely to happen in the future. |