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Chapter 2: EIU messaging protocols 65
DMS-100 Family EIU User Guide TELECOM12
IP throttling
IP throttle engineering is required to control congestion in the DS30 links.
LPPs, SSLPPs, and SNSE-LISs have different throttling requirements, as
described in the following sections.
For more information on datafill for IP throttling, refer to “Chapter 3: EIU
datafill”.
IP throttling for LPP
The LPP incorporates additional throttling control for TCP/IP traffic sent over
DS30s between the MS and LPP. Throttling protects against incorrectly
engineered LANs from overloading DS30s with errant TCP/IP traffic.
Table 8 shows the recommended traffic values for entry into table IPTHRON.
Adherence to these values ensures adequate bandwidth for the IP router
application and protect against DS30 overload. Refer to “Chapter 3: EIU
datafill” for additional information on table IPTHRON.
ICBM common pool 10 128
Transmit (application must allocate the
number of buffers and size)
00
Table 8 IP throttling values for LPP
Approved BCS BCS36
Approved CSP CSP02 CSP04/05 CSP04 CSP04
Approved S/W TOPS IEC04
IP router
application
EIU CM EIU CM EIU CM EIU CM
Tx Rx Tx Tx Rx Tx Tx Rx Tx Tx Rx Tx
ADAS 10 40 40 10 40 25
CDPD 5 5
RMS 10 10
PSN 12 25
(Sheet 1 of 2)
Table 7 Buffer allocation per end point (continued)
Protocol Buffer type Number
of buffers
Size (in
bytes)
(Sheet 2 of 2)