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thatmattlove-hyperglass/docs/extras/common_as_path_regex.md
checktheroads 47f1b938cd initial
2019-05-07 23:21:41 -07:00

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Expression Match
.\* Anything
.+ One Character
^$ Local Routes
\_65000$ Originated by AS65000
^65000\_ Received from AS65000
_65000_ Via AS65000
_65000_65001_ Via AS65000 and AS65001
_(65000_)+ Multiple AS65000 in path
^[0-9]+$ AS_PATH length of 1
^[0-9]+_[0-9]+$ AS_PATH length of 2
^[0-9]*_[0-9]+$ AS_PATH length of 1 or 2
^[0-9]*_[0-9]*$ AS_PATH length of 0, 1, or 2
^[0-9]+_[0-9]+_[0-9]+$ AS_PATH length of 3
_(65000|65001)_ Anything that has gone through AS65000 or AS65001
_65000(_.+_)65001$ Anything from AS65001 that passed through AS65001