EVPN Loop protection
Hi I am looking at an EVPN design that has the potential risk for the introduction of external links between attached CE devices. I have been looking at this rfc...
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EX3300 VC after upgrade to JunOS 12.3R12-S17 Lost remote access
Hello,This evening we upgraded our EX3300 VC to the latest JunOS 12.3R12-S17 since then we have lost remote access via SSH to our Switch. Other user logins are not functional and throw the same...
View ArticleNSSU and Pre provisioned VC requirement
Hi everybodyhttps://www.juniper.net/documentation/en_US/junos/topics/task/installation/ex-series-software-upgrading-nssu-fixed-virtual-chassis-cli.htmlAs per above link:Preparing the Switch for...
View ArticleUpgrading JUNOS without no-copy on EX SW?
Hi everybody,On SRX we have without no-copy option during software...
View ArticleEX4600
Hello,Shall we determine the license on purchasing EX 4600 in other words is the license come by default with the device isn't the advanced feature license ?another inquiry: Does its ports support...
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I please need assistance for basic EX2200 routing with an existing telecom...
HiIm familar with switching topics, but I don't get forward in a simple "home configuration" topic with an existing telecom router.I don't want to change the existing telecom router but I want to use...
View ArticleQFX5100-48S-6Q
Hi, I can see only active ports on QFX5100 through "show vlans" operational mode cmd. What about if I want to see the ports that are not UP but configured under the VLAN for QFX5100? I recently...
View Articlepacket buffer for EX3300 / EX4300/ NFX-250-S1
Hi, can someone let me know what the packet buffer sizes are for the EX3300, EX4300, and NFX-250-S1 devices? Can the default buffer sizes on these boxes be increased utilizing the q-pic-large-buffer...
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Network loop detection options with EVPN/VXLAN
Hello, We are currently in the progress of deploying a EVPN/VXLAN (Spine-Leaf) architecture in our datacenters. This used to be a flat layer 2 network with seperation of networks by using VLANs. One...
View ArticleEX4200 VC won't commit after a member core dump
I've got a 3 member virtual-chassis EX4200 that won't commit its config. This morning, member0 rebooted and dumped core immediately after a commit was performed. Console showed a lot of this,...
View ArticleEX 4200 in virtual Chassis keeps rebooting
I have a EX 4200 in a Virtual Chassis that keeps rebooting itself every 15 -30 minutes with Last reboot reason 0x2:watchdog tried restarting both the nodes so as to reset the routing engine demon but...
View ArticleSNMP version from V2 to V3
We are planning to upgrade SNMP version on Juniper switches from Version 2 to Version 3.Can you please suggest some standard config on juniper mx switch ?Details :SNMP ver 3SNMP User 1:- Username :...
View ArticleVerify private isolated vlan on EX3400.
Looking for command/verification parity between EX3300 & EX3400 when displaying the forwarding table to determine if a host has been added to the isolated pvlan. EX3300:EX3300> show...
View ArticleTraps on a EX-2300 switch - BPDU - how to send a trap on enable
We are working on getting notifications for ports that go into a BPDU state when a loop happens. And once again the newer EX-2300 switches are causing issues. (I really hate how inconsistent these...
View ArticleDrops on Output Errors - EX3400
Hi all, I have a server connected to an EX3400. The server is at 1g/Full-duplex (autonegotiation). However, I am seeing the following errors Input errors: Errors: 0, Drops: 0, Framing errors: 0, Runts:...
View ArticleQuestion on storm control
Hi everyone. https://www.juniper.net/documentation/en_US/junos/topics/concept/rate-limiting-storm-control-understanding.htmlAccording to the documentation above:"A traffic storm is generated when...
View ArticleQFX5100 GigabitEthernet (SFP-T) LED Status and Chassis hardware absent.
Hello. On qfx5100-48s switch LED status and Chassis hardware status absent after upgrade JunOS starting from version 19. For example, with version 18.1R3-S6.1 - LED Status is blinking and "show chassis...
View ArticleQFX - ip helper - Requires explanation
Hi everybody, I do understand why a lot of people would prefer working on Cisco. I need my client to boot from my PXE server on another subnet and I spent my day searching how to do it ... With a...
View Articleinit: %AUTH-1: getty repeating too quickly on port /dev/ttyu1, sleeping 30 secs
It would seem the config file needs to be corrected in the build. So this will need reapplied after a reboot.Ive seen this on 20.1R1-S3.3 and 20.2R1-S2.1Here is my quick fix. run start shell user...
View ArticleRSTP and BPDU Block-On-Edge
Hello colleagues, According to my understanding and reading about configuring rstp on Juniper interfaces: if bpdu-block-on-edge is configured:- When BPDU is received the port will be blocked.-It should...
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