Configuring MTP for the Japan-TTC variant

Follow these guidelines when configuring the MTP layer for Japan-TTC network operation:

For example:

PC_FORMAT     JNTT
...
LINK          T1
LINK_TYPE     JTTC
ADJACENT_DPC  1.1.2
...

is equivalent to:

...
LINK          T1
LINK_TYPE     JTTC
ADJACENT_DPC  0x421
...

Sample MTP configuration file for the Japan-TTC protocol variant

The following sample MTP 3 configuration file configures two T1/E1 links with the JTTC protocol variant. The required settings are shown in bold type.

#-----------------------------------------------------
# Sample MTP3 configuration for J-TTC protocol variant
#-----------------------------------------------------
#Overall MTP3 Parameters
#-----------------------
#
NODE_TYPE          SP           # choose STP [routing] or SP [non-routing]
PC_FORMAT          JNTT         # Note this is not JTTC

POINT_CODE         1.1.1
RESTART_REQUIRED   FALSE
DISABLE_UPU        TRUE

MAX_LINKS          4
MAX_USERS          2            # isup + 1 extra
MAX_ROUTES         64
MAX_ROUTE_ENTRIES  1024
MAX_LINK_SETS      2
MAX_ROUTE_MASKS    1
ROUTE_MASK         0xFFFFFFFF
END
#
#Link Parameters
#---------------
#
# Link 0
#
LINK               T1           # TDM port 1
LINK_SET           1
LINK_TYPE          JTTC

ADJACENT_DPC       1.1.2
LINK_SLC           0
LSSU_LEN           1
RT_FREQ 24
IDLE_FREQ 24

END
#
# Link 1
#
LINK               T2           # TDM port 2
LINK_SET           1
LINK_TYPE          JTTC

ADJACENT_DPC       1.1.2
LINK_SLC           1
LSSU_LEN           1
RT_FREQ 24
IDLE_FREQ 24

END
#
#User Parameters (NSAP definition)
#---------------------------------
#
NSAP               0           # isup
LINK_TYPE          JTTC

END
#
NSAP               1           # spare
LINK_TYPE          JTTC

END
#
#
#Routing Parameters
#------------------
#
# Route UP from network to applications on this node
#
ROUTE              0
LINK_TYPE          JTTC

DPC                 1.1.1       # this node
DIRECTION          UP           # default is DOWN
ADJACENT_ROUTE     FALSE
END
#
# Route to Adjacent node
#
ROUTE              1
LINK_TYPE          JTTC

DPC                1.1.2
END
#
#
# Linkset Parameters
#-------------------
LINK_SET_DESCRIPTOR 1
ADJACENT_DPC        1.1.2
MAX_ACTIVE_LINKS    4
ROUTE_NUMBER        1
END
#