Chapter3 Managing ITP Networks Using SGM
Editing an ITP Route Table File
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Cisco Signaling Gateway Manager User Guide
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You can resize each column in the route table, but you cannot sort the table based
on the information in one of the columns. See the “Resizing, Sorting, and Hiding
Table Columns” section on page3-279 for more details.
Step2 The Row Num field displays a unique number for each entry in the route table.
You cannot edit this field, but the number might change as you add entries to or
delete entries from the route table.
Step3 The Destination Point Code field displays the destination point code for packets
on the selected node. The destination point code is the point code to which a given
packet is routed. To edit the destination point code, enter the new code in this
field.
If you enter a new destination point code that is less restrictive than the mask,
SGM displays a message to that effect at the bottom of the Route Table Dialog,
and performs one of the following actions:
•If you modified an existing point code, SGM restores the previous point code.
•If you entered an entirely new point code, SGM leaves this field blank.
For example, a destination point code of 7.7.7, which specifies 14 bits, is less
restrictive than a mask of 7.255.0, which specifies only 11 bits. SGM ignores the
extra bits in the last digit of the destination point code and converts it to 7.7.0.
Step4 The Mask field specifies the significant bits of the point code:
•For ANSI and Chinastandard networks using the default 24-bit point code
format, the default mask is 255.255.255.
•For ITU networks using the default 14-bit point code format, the default mask
is 7.255.7.
To edit the mask, make the changes in this field.
If you enter a new mask, the binary conversion of the mask cannot contain ones
(1) to the right of zeros (0). For example:
•7.255.7 is a valid mask because it converts to binary 111.11111111.111.
•7.255.1 is not a valid mask because it converts to binary 111.11111111.001.
If you enter an invalid mask, such as 7.255.1, SGM displays a message to that
effect at the bottom of the Route Table Dialog, and performs one of the following
actions:
•If you modified an existing mask, SGM restores the previous mask.
•If you entered an entirely new mask, SGM leaves this field blank.