Intel SIU520 SS7 manual Routing Configuration, Circuit Group Configuration, Example Configuration

Building Fault-tolerant SS7 Systems Using the Intel® NetStructure™ SIU520 SS7 Signaling Gateway Application Note

Inter-SIU

Link Set

Link Set id 0

Link_id 0,

slc 0

Single Point

Code

SIUA

SIUB

Point

Code 100

Link id 1, slc 0

SSP/SCP

Link id 1, slc 1

Point

Code 200

Link Set id 1

Figure 19. Example Configuration to an Adjacent SSP/SCP

using the MTP_LINK command, assigning incrementing <link_ref> and <slc> values as normal. The <bpos> and <blink> parameters define which SS7 processor (there are three on each signaling card) manages each link. If a V.11 port is being used, <blink> must be either 1 or 2.

For a link using a PCM port, the physical location of the link is specified by setting stream and timeslot: stream 16 is the PCM port closest to the green LED on the signaling card, stream 17 the lower PCM port. To use a serial link, the MTP_LINK <flags> bit 14 should be set to 1, <stream> and <timeslot> both to 0. One of the units should act as the V.11 port clock master, the other as slave; hence, one SIU must also have <flags> bit 13 set to 1.

For example, to configure an inter SIU link, on linkset_id 0, to use V.11 port A on the first board in a SIU520, this command would be used to define a V.11 clock slave:

MTP_LINK 0 0 0 0 1 1 1 1 0 0x4006, while MTP_LINK 0 0 0 0 1 1 1 1 0 0x6006 would

define a V.11 port clock master.

Routing Configuration

A route should be defined on both SIUA and SIUB for the inter-SIU link set using the MTP_ROUTE command referencing the appropriate <linkset_id> with a <dpc> value set to the point code of the SIU pair. This route may only be specified to operate over a single link set.

Each DPC that may be accessed from the application must have an accompanying MTP_ROUTE declaration. For dual operation, each route includes a preferred link set, the <linkset_id> parameter, and a secondary link set specified by <second_ls>. linkset_id should refer- ence the link set connecting the SIU to the appropriate adjacent signaling point, second_ls must be set to the linkset_id assigned to the inter-SIU link set.

Circuit Group Configuration

For dual operation, each SIU should contain identical circuit group declarations using the appropriate ISUP_CFG_CCTGRP or TUP_CFG_CTGRP commands. These circuit group configurations do not become active on either unit until an Activate Circuit Group API command has been issued to a particular SIU.

Example Configuration

To define routing to the DPC 200 below (which is also the adjacent point code), using the first E-1 port on the first signaling card in a SIU520, the configuration (Figure 19) would be

For SIUA

MTP_CONFIG 0 0 0x0000

MTP_LINKSET 0 100 1 0x8000 100 0x8 MTP_LINKSET 1 200 1 0x0000 100 0x8 MTP_LINK 0 0 0 0 1 1 1 1 0 0x4006 MTP_LINK 1 1 0 0 1 2 1 2 16 0x0006 MTP_ROUTE 100 0 0x0020

MTP_ROUTE 200 1 0x0020 0x0001 0

For SIUB

MTP_CONFIG 0 0 0x0000

MTP_LINKSET 0 100 1 0x8000 100 0x8 MTP_LINKSET 1 200 1 0x0000 100 0x8 MTP_LINK 0 0 0 0 1 1 1 1 0 0x6006 MTP_LINK 1 1 0 1 1 2 1 2 16 0x0006 MTP_ROUTE 100 0 0x0020

MTP_ROUTE 200 1 0x0020 0x0001 0

(up_enable was set for ISUP, user part SI = 5 for the example above)

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