Nortel Meridian Meridian 1 Feature Description And Administration page 1272

Page 1272 of 1814
Operating parameters
Feature interactions
Feature packaging
553-2901-301 Standard 9.00 January 2002
MSDL Status Enquiry Message Throttle
The Status Enquiry Message Throttle feature regulates the sending of Status
Enquiry messages, by limiting the Status Enquiry messages sent within
a 128 millisecond time period. The Network side of the interface uses a fixed
number of Status Enquiry messages that is configurable per D-channel
through a Status Enquiry Message Throttle (SEMT) parameter in LD 17.
By reducing the number of Status Enquiry messages sent in a given 128 msec
time period, this feature improves the amount of network congestion
experienced after a D-channel recovers from data link failure. This also frees
up some timeslots for call processing.
By default the SEMT parameter is 1. The valid input range is 1 to 5.
This feature applies to DTI and PRI (1.5 Mb) only and not to DTI2 nor PRI2.
This feature supports both the NT6D80 Multi-Purpose Serial Data Link
(MSDL) card and the NT5D12 Dual Port DTI/PRI card with the
Downloadable D-channel daughterboard for DDP (NTBK51AA). ISDN PRI
and ISL interfaces are supported.
This feature applies only to Meridian 1 to Meridian 1 interfaces (MCDN
inter-networking).
The new prompt, SEMT, only applies to the "network" side interface of the
Meridian 1 to Meridian 1 network.
There are no feature interactions for this feature.
The following packages are required:
• ISDN Signaling (ISDN), package 145
• ISDN Primary Rate Access (PRA), package 146, or
• ISDN Signaling Link (ISL), package 147
• Multi-Purpose Serial Data Link (MSDL), package 222