Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Manuale Utente Scaricare il pdf (Pagina 301)

100

101

Translating Cisco to Nortel Networks Equivalents

308628-14.00 Rev 00

C-13

Nortel Networks AS_Path Pattern Matching Symbols

Table C-5 summarizes the symbols used in Nortel Networks AS_Path pattern

matching.

Table C-5. Nortel Networks AS_Path Pattern Matching Symbols

Symbol or

Operator Meaning

< Denotes beginning of an AS SEQUENCE segment.

> Denotes end of an AS SEQUENCE segment.

{ Denotes beginning of an AS SET segment.

} Denotes end of an AS SET segment.

. (period) Matches any single character, including white space.

<seq>{set} Denotes an AS path containing a sequence in the first segment and a

set in the second segment.

$ Denotes the preceding pattern occurs at the end of the AS path.

| Logical OR - match this of that.

_X_ Match exactly AS = “X”.

_X Match AS pattern beginning with X

(for example, “_99” matches 99 991 9934).

X_ Match AS pattern ending with X

(for example, “99_” matches 99 199 23299).

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