Configuring routes to non-adjacent nodes

You may need to configure non-adjacent signaling points. A non-adjacent signaling point is a signaling point that is not directly connected to the MTP 3 layer but is accessible through a signaling point that is directly connected. The following illustration shows this type of configuration:

Follow this procedure to configure a non-adjacent signaling point:

Step

Action

1

Configure all links, linksets, and routes to adjacent signaling points as described in the sample configuration files.

2

Add a route entry (direction down) for the non-adjacent SP, specifying its point code as the destination of the route.

3

Add the route number for the non-adjacent SP to the linkset entry for each linkset that can be used to reach the non-adjacent destination.


Since the non-adjacent SP in the illustration (point code 1.1.200) is accessible from both STPs, the route entry for 1.1.200 is added to the linkset definitions for both linksets 1 and 2. Since the STPs are cross connected, the route to each STP is also added to both linksets 1 and 2 since STP 1.1.1 can be reached directly through linkset 2 or indirectly through linkset 1 with STP 1.1.0.

The following example MTP configuration file configures non-adjacent signaling points:

<General Parameters>
#
#Link Parameters
#
LINK                      T1       # Link 0 to STP 1.1.0
LINK_SET                  1
ADJACENT_DPC              1.1.0      
END
#
LINK                      T2       # Link 1 to STP 1.1.1
LINK_SET                  2
ADJACENT_DPC              1.1.1      
END
#
#Routing Parameters
#
# Route UP from network to applications on this node
#
ROUTE                     0
DPC                       1.1.100  # this node
DIRECTION                 UP
END
#
ROUTE                     1
DPC                       1.1.0    # STP 1.1.0
END
#
ROUTE                     2
DPC                       1.1.1    # STP 1.1.1
END
#
ROUTE                     3
DPC                       1.1.200  # Route to non-adjacent 1.1.200
END
#
# Link set Parameters
#
LINK_SET_DESCRIPTOR       1
ADJACENT_DPC              1.1.0    # link set to STP 1.1.0
ROUTE_NUMBER              1
ROUTE_NUMBER              2
ROUTE_NUMBER              3
END 
#
LINK_SET_DESCRIPTOR       2
ADJACENT_DPC              1.1.1    # link set to STP 1.1.1
ROUTE_NUMBER              1
ROUTE_NUMBER              2
ROUTE_NUMBER              3
END