[j-nsp] Using a QFX5100 without QFabric?

Hello we're thinking about buying a few QFX5100 as they are incredibly cheap on the refurbished market - sometimes even cheaper than a much older EX4550. Are there any caveats when using the QFX5100-48S as a normal aggregation switch without QFabric? We have a pretty basic setup of Access

[j-nsp] Copper transcievers in QFX5100, EX4600 and ACX5048

Hello the official documentation for QFX5100, EX4600 and ACX5048 contains the following statement: https://www.juniper.net/documentation/en_US/release-independent/junos/topics/reference/specifications/port-panel-qfx5100-48S.html "Caution: Do not place a copper transceiver in an access port

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

Hello Aaron they're mentioning MC-LAG because I explicitly asked about bugs/problems related to MC-LAG. A big "thank you" to everyone who contributed to the discussion and shared their experinces. @Nathan: Switch problems with Junos 15.1 - for example this:

[j-nsp] Enhanced MX480 Midplane?

Hello this article is mentioning an enhanced MX480 midplane. This is the first time I hear of that: CHAS-BP-MX480-S (=Non-Enhanced) vs. CHAS-BP3-MX480-S (=Enhanced) https://www.juniper.net/documentation/en_US/release-independent/junos/topics/concept/scbe2-mx480-desc.html Is there anyone who can

[j-nsp] Syslog getting spammed by DDOS_PROTOCOL_VIOLATION_SET

Hello our syslog is getting spammed with the following messages: jddosd[12168]: %DAEMON-4-DDOS_PROTOCOL_VIOLATION_SET: Protocol resolve:ucast-v4 is violated at fpc 11 for 1389 times jddosd[12168]: %DAEMON-4-DDOS_PROTOCOL_VIOLATION_CLEAR: Protocol resolve:ucast-v4 has returned to normal.

[j-nsp] ARP Table Timer vs. MAC Table Timer on Juniper

Hello by default ARP table entries will be saved for 20 minutes and MAC table entries will be saved for 5minutes. This seems to be a rather stupid default to me since expired MAC table entries (in conjuction with still existing ARP table entries) will cause Unknown Unicast packets to be

[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

Re: [j-nsp] Force a reboot from the serial console?

Hello Tore for new deployments you could check out the Digi CM 48. These device do not need rollover cables, you can use your standard ethernet cables to connect the router/switch console ports to the Digi CM. They also come with dual power supplies and you can find them used for 200€ with 48

Re: [j-nsp] EX4300 + EX-UM-4X4SFP, can it do 1000Base over fiber?

] *Sent:* Friday, Jul 20, 2018 4:21 AM CEST *To:* Karl Gerhard; juniper-nsp@puck.nether.net *Subject:* [j-nsp] EX4300 + EX-UM-4X4SFP, can it do 1000Base over fiber? > Hi Karl, > > Indeed the EX-UM-4X4SFP should be dual-mode capable. > I think it's auto-detecting your dual-mode SFP as 10GBas

[j-nsp] EX4300 + EX-UM-4X4SFP, can it do 1000Base over fiber?

Hello I have an EX4300 with a EX-UM-4X4SFP Uplink module (with 4x SFP slots) and a dual mode SFP Module that supports 1000Base LX and 10GBase LR. When inserted into the EX4300 the SFP module is always in 10GBase LR mode. Is there any way to configure any or all of the SFP slots to 1000Base?

[j-nsp] "set routing-options protect core" breaks local-preference

Hello I am experimenting with BGP PIC before deploying it to production and I have found an oddity: With "set routing-options protect core" local-preference stops working the way I would expect it to work. If I configure "local-preference 120" on import from my IBGP neighbor the router will

Re: [j-nsp] MX960 transient errors on high capacity AC power supplies

[mailto:z...@163.com] *Sent:* Wed, Sep 5, 2018 2:22 AM CEST *To:* Karl Gerhard

Re: [j-nsp] "set routing-options protect core" breaks local-preference

] *Sent:* Tue, Sep 11, 2018 9:52 AM CEST *To:* 'Karl Gerhard'; juniper-nsp@puck.nether.net *Subject:* [j-nsp] "set routing-options protect core" br

Re: [j-nsp] Experience with two-tier MC-LAG?

Stevens [mailto:bra...@argentiumsolutions.com] *Sent:* Tuesday, Mar 13, 2018 11:51 PM CET *To:* Karl Gerhard *Subject:* [j-nsp] Experience with two-tier MC-LAG? > Do you have a layer-2 adjacency requirement at the edge? Even if you do, I'd > ask why don

Re: [j-nsp] "set routing-options protect core" breaks local-preference

Hello Rob, thanks for sharing, seems like all Junos versions above 17.3R3 are affected. BTW another entertaining bug affects the LAG load balancer. Ever tried adding an additional interface to an existing LACP LAG on Junos 18.2? The LAG load balancer will immediately send traffic through the

[j-nsp] MX960 transient errors on high capacity AC power supplies

Hello, we have bought two Juniper MX960 and we're having serious trouble with power supplies triggering alarms and then clearing alarms a few seconds later: 2x RE-S-X6-64G 3x SCBE-2-MX MX960 Premium 3 chassis 4x High Capacty AC PEMs $ show log messages | match alarmd Aug  30 08:09:02  router1

[j-nsp] RLDRAM sizes of MPC line cards

Hello is there a list of the RLDRAM sizes of various Juniper line cards to be found somewhere on the internet? As far as I understand RLDRAM equals (more or less) FIB size which is incredibly important. I'm thinking about buying an MPC2 but I'm not sure how long it will last (compared to an

Re: [j-nsp] Can the QFX5100 log LACP state changes?

and no, there seems to be no mention of this in the release notes. Regards Karl On 19.11.18 12:37, Karl Gerhard wrote: > Hello > > I need to check interfaces for LACP flaps on a QFX5100. > On an EX4550 and EX4300 it is very easy to do that. Every LACP state change > would get logged

[j-nsp] Can the QFX5100 log LACP state changes?

Hello I need to check interfaces for LACP flaps on a QFX5100. On an EX4550 and EX4300 it is very easy to do that. Every LACP state change would get logged and the syslog messages would look like this: Nov 16 14:44:15  ex4550-test /kernel: %KERN-5-KERN_LACP_INTF_STATE_CHANGE:

[j-nsp] 10GBASE-T COPPER SFP+ - are they safe?

Hello the 10GBASE-T COPPER SFP+ draw a lot of power (up to 2.5W). I'd like to know whether there are any risks or restrictions associated with using those. How safe are those things in the long term, considering they draw even more power than a 100km ZR SFP+ module? Is there a risk that my line

Re: [j-nsp] Rock-solid JUNOS for QFX5100

Just here to tell you that we've had an issue that sounds close to what you saw: After a commit, a LAG would stop moving packets. Renaming the LAG (i.e. from ae24 to ae35) would fix the issue. Renaming it back to ae24 would trigger the issue again. Happened on a device that was only used for

Re: [j-nsp] prsearch missing in inaction

Yeah, thanks Juniper for taking a year to fix a critical tool for network engineers. I'll be right back, I just upgraded one of my Juniper devices and now my network is on fire. On 05.08.19 09:12, Chris Lee wrote: > And it's 5th August and as promised in the last KB update PR Search >

Re: [j-nsp] Suggestions for Edge/Peering Router..

y mature OS but these issues causing the network > hard to maintain. > > Thank you > > Kamal > > On Monday, September 23, 2019, Karl Gerhard wrote: > >> Hi, >> >> I'd like to point out one more thing because I feel that this point hasn't >> been stre

Re: [j-nsp] Suggestions for Edge/Peering Router..

Hi, I'd like to point out one more thing because I feel that this point hasn't been stressed enough: Upgrading Junos might be more time consuming than many people expect it to be. The reason for this is that quite often, things that previously worked in Junos will break in a new release. This

Re: [j-nsp] MX204 vs. MX240??

On 14.11.19 14:19, adamv0...@netconsultings.com wrote: > Also is there a cmd I can use to switch between LC CPU and LU? > > Thanks, > > adam Maybe this - at least for LACP: https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/inline-edit-protocols-lacp.html

Re: [j-nsp] QSA modules and DDM/DOM readings

, 2021, 6:00 PM *To:* juniper-nsp@puck.nether.net *Subject:* [j-nsp] QSA modules and DDM/DOM readings Hi, Am 05.03.2021 um 15:49 schrieb Karl Gerhard: I tried QSAs from two different vendors but to no avail. I wonder if anyone has succeded in getting DDM/DOM readings on a QSA adapter

[j-nsp] QSA modules and DDM/DOM readings

Hello is it possible to use a QSA module and get DDM/DOM readings? Here's a Juniper QFX5100-48T with a QSA adapter. The 10G interface is up and it is forwarding packets, but there are no DOM/DDM readings: root# run show interfaces terse xe-0/0/52* Interface   Admin Link Proto   

Re: [j-nsp] MX304 - Edge Router

On 18/10/2023 18:55, Tom Beecher via juniper-nsp wrote: Juniper licensing is honor based. Won't impact functionality, will just grump at you on commits. It depends. MACSEC on EX and QFX first had a license warning and a permanent minor alert when configured on these platforms. With Junos 18