Siemens RX1500 User Manual page 492

Chapter 5
Setup and Configuration
Character Description
_ (underscore) The underscore character has special meanings in an autonomous system
path. It matches to:
• Each space ( ) and comma (,)
• Each AS set delimiter (e.g. { and })
• Each AS confederation delimiter (e.g. ( and ))
• The beginning and end of the line
Therefore, the underscore can be used to match AS values.
To add an entry for an autonomous system path filter, do the following:
Change the mode to Edit Private or Edit Exclusive.
1.
2. Navigate to routing » dynamic » bgp » filter » as-path » {name} » entry, where {name} is the name of the
autonomous system path filter.
3. Click <Add entry>. The Key Settings form appears.
Figure 517: Key Settings Form
1. Action List 2. Match Box
4. Configure the following parameter(s) as required:
Parameter
Action
Match
5. Click Add to create the new entry.
Click Commit to save the changes or click Revert All to abort. A confirmation dialog box appears. Click OK
6.
to proceed.
Click Exit Transaction or continue making changes.
7.
460
1
2
3. Add Button
Description
Synopsis: deny, permit
Action.
The regular expression to match the BGP AS paths - for more information about regular
expressions, refer to the User Guide.
Example
_100,100_, _100_
Adding an Autonomous System Path Filter Entry
RUGGEDCOM ROX II
User Guide
3