Routing

Hi Please see the below bold highlighted output. 

Can you explain why two exact same path exist( > to 6.74.102.96 via ae1.107)?

In fact, there are two paths, one is " > to 6.74.102.96 via ae1.107", and second is  " to 6.74.102.98 via ae2.108"

W>show route 98.24.176.208

WAN.inet.0: 1483 destinations, 2688 routes (1825 active, 0 holddown, 9 hidden)
+ = Active Route, - = Last Active, * = Both

98.24.176.208/31 *[BGP/170] 6w0d 03:36:04, localpref 100, from 6.74.102.98
AS path: 2314 2314 I
> to 6.74.102.96 via ae1.107
   to 6.74.102.98 via ae2.108
[BGP/170] 5w0d 04:19:18, localpref 100
AS path: 2314 2314 I
> to 6.74.102.96 via ae1.107

Hi,

It depicts ECMP for the particular route ..

You might have enabled multipath for your ebgp peer or group  and also there exists multiple equal cost path for the mentioned prefix:

Sample Command for enabling multipath:

set protocols bgp group external multipath.

Hello,

Do You have "multipath" configured?

If yes, this is how JUNOS displays multipath-enabled routes: "show route 98.24.176.208/31 extensive" will reveal more detailed information but the essence is below

98.24.176.208/31 *[BGP/170] 6w0d 03:36:04, localpref 100, from 6.74.102.98
AS path: 2314 2314 I
> to 6.74.102.96 via ae1.107 <==== multipath contributor A (not best)
   to 6.74.102.98 via ae2.108 <==== multipath contributor B, best
[BGP/170] 5w0d 04:19:18, localpref 100
AS path: 2314 2314 I
> to 6.74.102.96 via ae1.107 <======= multipath contributor A, not best

Confusing, I know, but You'd get used to it eventually.

HTH

Thx

Alex