[c-nsp] sub-interface inheritance of main interface properties

Antonio Querubin tony at lava.net
Wed Jun 6 10:22:14 EDT 2007


I'm looking for ways to simplify some large router configs that have many 
sub-interfaces either for specific DLCIs, VCs, or VLANs.  Is there a 
document somewhere that describes which properties or attributes of a main 
interface are automatically inherited by its sub-interfaces?  So far, 
searching the cisco site on 'inheritance' and 'cascade' keywords turns up 
only some limited info.  In particular I'm looking for ways to apply 
certain default policies, ACLs, traffic-shaping, etc. globally to all 
sub-interfaces of a main-interface without having to repeat the config for 
every sub-interface.

Antonio Querubin
whois:  AQ7-ARIN


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