[j-nsp] Junos 18.X on QFX5100

[Thomas Bellman]

On 2019-05-25 22:38 -0400, Philippe Girard wrote:

> Anyone running production Junos 18.X on QFX5100?
> 
> JTAC recommended still says 17.3R3-S4 but I'd really like to jump to 18 for
> some new features it offers.

We have one QFX5100-48S running 18.3R1.9 (the other QFX5100 we have
runs 17.3R3.10).  We also have a few EX4600, which is basically the
same as QFX5100, running a mix of 18.2, 18.3, 18.4 and 19.1.

So far, the only problem I have seen is that the Jet Service Daemon
(jsd) and the na-grpc-daemon starts eating 100% CPU after a few weeks
on 18.3, but not the other versions.  Restarting them helps; for a
few weeks, then they suddenly eat CPU again.  It should also be possible
to disable them if you don't use them (I haven't gotten around to do
that myself, though).

We don't use a huge amount of features, though.  OSPF (v2 and v3),
Spanning Tree (MSTP), multiple VRFs, some route-leaking between VRFs,
and DHCP relay.  A couple of static routes with BFD as well.  No BGP,
no VXLAN, no EVPN, no MPLS.


	/Bellman

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