[j-nsp] Experience with Junos 15.1 on MX960?

[Nikolas Geyer]

We’re running 16.1R4 and it’s been stable for the most part, aside from a few annoying cosmetic problems.

Running it on MX480’s and 960’s, a variety of RE’s, a variety of MPC2/MPC3/MPC4/MPC7, usual protocols such as BGP, OSPF, MPLS, RSVP and a few Tbps of traffic. No MC-LAG unfortunately though.

Will probably schedule moving up to 17 some time early 2018.

Sent from my iPhone

On 12 Dec 2017, at 2:20 pm, Niall Donaghy <niall.donaghy at geant.org<mailto:niall.donaghy at geant.org>> wrote:

Hello,

We are running 15.1F6-S6.4 on MX480 and MX960. No MC-LAG.
We rolled this out after Juniper PIIR and SURR, and our own internal type-certification process.
We needed F6 for EVPN and streaming telemetry features.
Several scary service-affecting bugs came out in the PBN notices, so we upgraded twice from the initial version and, hence, now on S6.4.

There are a number of threatening bugs in S6.4 still, but so far the experience has been good.

We are running RE-S-1800x4 so are immune to PR1312308.
Your REs are affected, therefore you should check the PR and TSB, which recommends 15.1F6-S10 or 15.1F7-S3.

TSB17205 http://kb.juniper.net/InfoCenter/index?page=content&id=TSB17205&actp=SUBSCRIPTION - PR1312308 - All protocols time out and FPCs are restarting after transient SSD freeze
PR1312308 https://prsearch.juniper.net/InfoCenter/index?page=prcontent&id=PR1312308 - All protocols time out and FPCs are restarting after transient SSD freeze

I strongly recommend you do your due diligence in researching bugs affecting your proposed hardware and software versions; there be dragons.

I can tell you for 15.1F6-S6.4 we got 10 PBNs in October this year, thankfully none in November, and for December, let's see what we get for Xmas..
Br,
Niall

Niall Donaghy
Senior Network Engineer
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-----Original Message-----
From: juniper-nsp [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Karl Gerhard
Sent: 12 December 2017 09:53
To: juniper-nsp at puck.nether.net<mailto:juniper-nsp at puck.nether.net>
Subject: [j-nsp] Experience with Junos 15.1 on MX960?

Hello

we've had very bad experience with Junos 15.1 on our switches (EX4550, EX4300, EX4200).
Now we're getting new MX960s with 2xRE-S-X6-64G and unfortunately the minimum required Junos version for this RE is 15.1. Can anyone share their experience with Junos 15.1 on MX960? Is it as bad as it is on the switches? Would it be wiser to jump directly to 16.1/16.2/17.1/17.2/17.3?

We're especially interested in bugs/problems related to MC-LAG.

Regards
Karl
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