R5.01-195 : With fat flow configured and policy enabled on vhost0, BGPaaS is broken

Bug #1786947 reported by Ankit Jain on 2018-08-14
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Juniper Openstack
N Anand Rao
N Anand Rao

Bug Description


Create a VN vn1, launch a vsrx instance in vn1, say
1) Fat flow config tcp with port 0 on vhost0
2) Enable the policy on vhost0 port
3) configure bgp config on vsrx image with as peer

BGP session is not established. Vrouter is not able to install reverse flow, which breaks the bgpaas functionality. vhost0 is control node vsrx peer to vsrx

Below are the flows created when the system in not in working state:

   167540 6 (0)
(Gen: 20, K(nh):5, Action:H, Flags:, TCP:RD, QOS:-1, S(nh):0, Stats:6/240,
 SPort 0, TTL 0, Sinfo

   185352<=>347700 6 (0->2)
(Gen: 2, K(nh):34, Action:F, Flags:, TCP:, QOS:-1, S(nh):34, Stats:6/396,
 SPort 56104, TTL 0, Sinfo

   234068<=>347240 6 (3->0)
(Gen: 2, K(nh):39, Action:N(SPsD), Flags:, TCP:S
, QOS:-1, S(nh):39, Stats:2/140,
 SPort 58170, TTL 0, Sinfo

   347240<=>234068 6 (0->3)
(Gen: 34, K(nh):5, Action:N(SDPd), Flags:, TCP:Sr, QOS:-1, S(nh):16, Stats:0/0,
 SPort 61765, TTL 0, Sinfo

As discussed with Ashok/Anand today in the meeting...Ashok and Anand both aware of the issue.

Ankit Jain (ankitja) on 2018-08-14
Changed in juniperopenstack:
importance: Undecided → Critical
importance: Critical → Undecided
tags: removed: blocker
N Anand Rao (anandrao79) wrote :

Checked with Richard Roberts on this and he confirmed that applying fat flow config on vhost0 interface is not a valid use case. Hence closing this bug for now.

Changed in juniperopenstack:
status: New → Invalid
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