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Conference noted::decnis

Title:	DEC Network Integration Server (DECNIS)
Notice:	Please read note 1 to use this conference effectively
Moderator:	MARVIN::WELCH

Created:	Wed Sep 18 1991
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	3660
Total number of notes:	15082

3592.0. "static route overriden by dynamic route?" by SNOFS1::63496::CHIUANDREW () Mon Apr 07 1997 23:00

    Hi,
    
    Customer would like to set up a static route where it WILL BE overriden
    by dynamic routes (learn from other routers via OSPF), is it correct to
    the use the METRIC parameter to do this?
    
    On DECnis,
    ncl>set rou cir w622-4-0 ip reach addr default metric xxx
    
    What should be the value of xxx (so that it can be overriden by dynamic
    routes?
    
    
    Is it correct to say, static route will always override dynamic route
    if the DEFAULT METRIC value is used?
    
    
    thanks in advance for help!
    Andrew Chiu - NSIS Sydney

T.R	Title	User	Date	Lines
3592.1		MARVIN::PATEL	`Tue Apr 08 1997 02:53`	17
	> Customer would like to set up a static route where it WILL BE overriden > by dynamic routes (learn from other routers via OSPF), is it correct to > the use the METRIC parameter to do this? > > On DECnis, > ncl>set rou cir w622-4-0 ip reach addr default metric xxx > > What should be the value of xxx (so that it can be overriden by dynamic > routes? > > > Is it correct to say, static route will always override dynamic route > if the DEFAULT METRIC value is used? Metric is the wrong attribute to use in this situation. What you should use is the route preference. Create the static route(s) with a preference that is lower than the learnt OSPF routes.
3592.2	'preference' does not work for L1 router!	SNOFS1::63496::CHIUANDREW	`Tue Apr 08 1997 03:28`	12
	re .1, thanks for your quick answer. I was using preference before, but when DECnis started to learn OSPF routes, the preference for the default static route changed to a very large number (419xxxxx), and the DECnis is L1 router. That's why I asked whether we can use METRIC to change this case. Any idea/comment! Andrew Chiu - NSIS Sydney
3592.3		MARVIN::PATEL	`Wed Apr 09 1997 02:35`	12
	> I was using preference before, but when DECnis started to learn OSPF > routes, the preference for the default static route changed to a very > large number (419xxxxx), and the DECnis is L1 router. That's why I > asked whether we can use METRIC to change this case. > > Any idea/comment! This does not make sense. Once a route has a preference, it does not change when the same route is learnt from another protocol. It may stop being used for forwarding because the new route has a better preference. Where did you get the number 419xxxxx. Have you got the NCL output that showed this preference ?