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ATM Switch Router Software Configuration Guide
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Chapter11 Configuring ATM Routing and PNNI
Advanced PNNI Configuration
Editing Entries within the Explicit Path
Each entry has an index that gives its relative position within the list. Indices are used as an aid to edit
an explicit path. The entire current list showing the entry index displays after each entry is added, or it
is redisplayed when you use the list keyword.
The optional index keyword allows the exact index to be specified for an entry. If no index is specified
for a new entry, it always defaults to one higher than the last path entry. If the index matches the index
of an existing entry, the index is overwritten with new information. The no form deletes an existing entry
for a given index.
Example
The following example shows the original path:
Explicit_path name new_york.path1 (id 5) from node dallas_1:
1 next-node dallas_2
2 next-node dallas_4 port 80003004
3 segment chicago_2
4 next-node 40:72:47.009181000000106000000000.
You can modify the first entry to add an exit port for the original path. As shown in the following
example, use the index keyword to specify the index of the entry t o modify:
dallas_1 (cfg-pnni-expl-path)# index 1 next-node dallas_2 port 80000000
Explicit_path name new_york.path1 (id 5) from node dallas_1:
1 next-node dallas_2 port 80000000
2 next-node dallas_4 port 80003004
3 segment chicago_2
4 next-node 40:72:47.009181000000106000000000.
The append-after keyword adds a path entry after the specified index. Renumbering the following path
entries, if necessary, to make room for the new entry.
Example
If there are four next-node entries labelled as index 1 through 4, you can squeeze a new entry in after
index 2 (using the append-after keyword), resulting in index 3. The following two entries are
automatically renumbered to indexes4 and 5 in order to make room for index3.
dallas_1(cfg-pnni-expl-path)# append 2 next-node st_louis
Explicit_path name new_york.path1 (id 5) from node dallas_1:
1 next-node dallas_2 port 80000000
2 next-node dallas_4 port 80003004
3 next-node st_louis
4 segment chicago_2
5 next-node 40:72:47.009181000000106000000000.
Displaying Explicit Path Configuration
To display the PNNI explicit path configuration, use the following EXEC command:
Example
The following example shows a summary of explicit pat hs:
Command Purpose
show atm pnni explicit-path [{name path-name
| identifier path-id} [upto index]] [detail]
Displays the PNNI explicit path configuration.