| Oracle® Communications EAGLE SIGTRAN User's Guide Release 46.6 E97352 Revision 1 |
|
 Previous |
 Next |
| Oracle® Communications EAGLE SIGTRAN User's Guide Release 46.6 E97352 Revision 1 |
|
|
Previous |
Next |
An IPGWx mateset is an IPGWx card linkset configuration with a setting of mated, meaning two IPGWx or IPSG linksets are allowed in a mateset by using the matelsn linkset parameter. The limitation of this approach is that each linkset can have only one card. This configuration for IPGWx is supported to be backward compatible with previous EAGLE software versions.
IPGWx status sharing
Each IPGWx and IPSG card supports up to 50 IP connections, each of which can be available or unavailable for SS7 traffic. Expanding the number of cards in a mateset also means that the worst-case number of status messages to be communicated during run-time grows by the square of the number of cards. The exponential increase in status messages can have a significant impact on IMT bus utilization.
IP destination status
Proper implementation of SS7 network management on behalf of IP-based point codes requires that the cards comprising an IPGWx linkset have a common view of destination availability. Destination availability status is based upon the availability of IP connections assigned to various routing keys. Each card must know which other cards in the linkset have connections available for a given destination. When the total count of available connections for a destination changes from 0 to 1, then a Transfer Allowed (TFA) needs to be generated. When the total count changes from 1 to 0, then a Transfer Prohibited (TFP) needs to be generated.
SS7 network status
IPGWx cards within a mateset must maintain a shared view of SS7 network status and inform IP Signaling Points of changes in this shared view. There are three kinds of SS7 network status:
