when configure ISDN backup floating static route or Backup interface, interesting traffic is configured by "dialer-list" and ACLs. only interesting traffic can triger the ISDN link, but what about after ISDN link active, still those ACL filtering traffic or all traffic pass through.
AFAIK its only the particular traffic to trigger that isdn line rather than all kinda traffic like your routing updates or other periodic updates unecessarily trigger the isdn line when theres no interesting traffic out ther in ther link or w/o any active transactions between the locations..
in the section "Dialing Out Flow Chart" we can see that if an interesting traffic pass then the idle timer will be reset. if the traffic is not interesting then the traffic is still passed but the idle timer is not reset.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...