[j-nsp] Why JUNOS need re-establish neighbour relationship when configuring advertise-inactive

[Roger Wiklund]

Hi

Indeed you are right Saku.

set routing-instances VR2 protocols bgp group TO-VR1-AND-VR2 neighbor
10.0.0.1 peer-as 100
set routing-instances VR2 protocols bgp group TO-VR1-AND-VR2 neighbor
20.0.0.2 advertise-inactive
set routing-instances VR2 protocols bgp group TO-VR1-AND-VR2 neighbor
20.0.0.2 peer-as 300

Session reset when I added advertise-inactive to the neighbor.

Before:
Group Type: External                               Local AS: 200
  Name: TO-VR1-AND-VR2  Index: 4                   Flags: <>
  Holdtime: 0
  Total peers: 2        Established: 2
  10.0.0.1+179
  20.0.0.2+179
  VR2.inet.0: 0/1/1/0

After:
Group Type: External                               Local AS: 200
  Name: TO-VR1-AND-VR2  Index: 4                   Flags: <>
  Holdtime: 0
  Total peers: 1        Established: 1
  10.0.0.1+179
  VR2.inet.0: 0/1/1/0

Group Type: External                               Local AS: 200
  Name: TO-VR1-AND-VR2  Index: 1                   Flags: <>
  Options: <AdvertiseInactive>
  Holdtime: 0
  Total peers: 1        Established: 1
  20.0.0.2+179
  VR2.inet.0: 0/0/0/0

So a workaround would be to put it in a separate group then...

/Roger

On Sat, Jul 15, 2017 at 11:42 AM,  <adamv0025 at netconsultings.com> wrote:
>> From: Saku Ytti [mailto:saku at ytti.fi]
>> Sent: Saturday, July 15, 2017 10:33 AM
>>
>> Hey Roger,
>>
>> Usually JunOS (like other platforms) resets session when you have to change
>> update group.
>
> You nailed it Saku, that's got to be the culprit for OP's case,
>
> Can you please name other network OSes that reset session when moving peer to another update-group?
>
>
> adam
>
> netconsultings.com
> ::carrier-class solutions for the telecommunications industry::
>