[j-nsp] aggregate route color

Douglas Marschke dougm at juniper.net
Mon Aug 9 19:58:04 EDT 2004


All color is defined as is preference 3 and 4.  So if you have 2
destinations the tie-breaker rules are:

Prefer route with best preference
Prefer route with best preference2
Prefer route with best color
Prefer route with best color2

Below is a static and aggregate route with the same preference (5) but a
different color (0 vs 3), thus the static route is active:

[edit routing-options]
lab at SanJose# run show route 172.16.0/24 detail          

inet.0: 23 destinations, 24 routes (22 active, 0 holddown, 1 hidden)
172.16.0.0/24 (2 entries, 1 announced)
        *Static Preference: 5
                Next hop type: Reject
                State: <Active Int Ext>
                Local AS:    10 
                Age: 2  Metric: 0 
                Task: RT
                Announcement bits (2): 0-KRT 3-Aggregate 
                AS path: I
                Communities: 65432:9999
         Aggregate Preference: 5
                Color: 3
                Next hop type: Reject
                State: <NotBest Int Ext>
                Inactive reason: No difference
                Age: 2:00 
                Task: Aggregate
                AS path: I (LocalAgg)
                Flags:                  Depth: 0        Active
                AS path list:
                AS path: I Refcount: 1
                Contributing Routes (1):
                        172.16.0.1/32 proto Static 

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of R Che
Sent: Monday, August 09, 2004 2:57 PM
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] aggregate route color

Hi,
 
I was reading JunOS docs, and don't understand how to use "color" option
to provide route preference for aggregate route.
Do anyone have an example?
Thanks.

 

		
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