EX MAC Learning
Hi, I have a computer that is connected with a network cable to our swithces, however the port is not configured. I wont to learn which port this computer is in so I can configure the port and get DHCP...
View ArticleJuniper SFPs Appearing as not supported or unsupported
Has anyone experienced Juniper OEM SFPs appearing as 'unsupported' on 'not supported' on initial boot-up. It frustrating somewhat since a reboot resolves the problem, or sometimes re-seating a...
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Switch Won't Learn MAC Addresses
HelloI have a problem, which I believe, is a configuration problem between an existing datacenter to a QFX acts as a vlan gatewayHere is the topology. followed by the problem I have Two sites, on each...
View ArticleJunos layer 2 policing
Hello, I am writing for advise about doing policer on family ethernet-switching. I notice that there are command available to apply filter in/out under interface as well as under VLAN. But I'm not sure...
View ArticleEX2300 upgrade problems
Hi,Trying to create a ZTP setup for EX2300s (initially, later other models will follow), but I'm stuck at the image upgrade.The device gets it's IP, hostname etc. and correctly downloads the image via...
View ArticleExclamation point ( ! ) in show | compare rollback n
Could any one of you explain about Exclamation point ( ! ) in show | compare rollback n command.interface ge-3/0/3.0 { ... }! interface ge-3/0/5.0 { ... }! interface ge-3/0/6.0 { ... }! interface...
View Articlefpc
Hi all,Can I ask please why fpc utilization is high as routing engine seems okay. Please see attached file. How to determine the causes? thxAA.
View Articlenumber of configured tpids exceeds the limit
Hi,i have an problem with an LACP 10g switch interface. Two 10 gig interface are an logical ae2 interface, but one of the 10g interface won't come up. It was working in the past without any issues. But...
View ArticleQFX USB Speed
Does anyone know if the QFX-5100 USB port supports 3.0 speeds? The question comes from a desire to boot from image recovery media as quickly as possible.
View ArticleMX QinQ tunneling with native-vlan-id
I don't seem to find any documentation regarding the use of QinQ tunneling in combination with the native-vlan-id. Here's what I'm trying to do. On one side I got a QinQ interface where the S-VLAN is...
View ArticleEX2300-C-12T or SRX300
Hi,We are going to implement a number of remote branch switches on several locations.The only demands are (besides it's a Juniper device), at least five Gb RJ45 ports and completely noiseless.No...
View Articleafter removing vc port configuration the interface still shows up even though...
Hello, wondering why after removing a 10gig interface from the VC port configuration the interface still shows that it's linked up. I have no fiber connections plugged into it.If I pull the optic out...
View ArticleQFX format and install error.. can't flash and install latest Junos
Hello,I tried to flash the QFX3500 with latest junos and I followed this article https://kb.juniper.net/InfoCenter/index?page=content&id=KB20643loader> install --format file:///<Junos package...
View Articleredundant trunk group design
Hi All,I have the following topology for a specific vlan.The switch named switch-4 has to be connected as per this topology.Is it a valid design to apply the concept of RTG on this switch (switch-4)in...
View ArticleLoop prevention
Need some feedback from the experts. What would happen if a loop it created downstream from your network which is not under your control. I understand that a broadcast storm is most likely and that...
View ArticlePort transitioning through STP stages constantly
I'm wondering if someone can throw out some ideas on some STPs issues we're having. I've attached a diagram to hopefully make this a bit easier to see. In a nutshell we have 2 ITNs that are showing...
View ArticleRTC ERROR
Hi,Why the following message logs are happening as ex2300>show system uptime is correct and NTP servers are accessible by ex switch? Is it bug or?kernel: rtc8564je_rtc0: RTC ERROR(16): read failed...
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Problem with remote port mirroring
Hello, I am currently having problem getting remote port mirroring work on Juniper QFX. Below is the topology: I can get it worked fine without "SW02". So, anyone please advise what will be the...
View Articleshow command to display vlan-name & active ports
I have previously used show vlans |m "\*"but the above does not display the vlan name itself... Can I please ask if anyone knows how to show vlan AND active ports within each vlan many thanks
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