2xEX2300 VC: fpc0 ifd null, port 28 / dc-pfe: ifd null, port 28 what does...
Hi, I have a 2xEX2300-48p virtual-chassi that sends these syslog messages 24/7 (around 128K per day):Mar 8 15:06:11 *hostname* dc-pfe: ifd null, port 29 Mar 8 15:06:11 *hostname* fpc0 ifd null, port 29...
View ArticleVirtual chassis benefits
Hi,I am setting up a little infrastructure relying on two EX3300.Communications with the outside world depend on a single optical link, so I have to connect it on one of them.In order to get...
View ArticleVLANs
Hi experts, I am a bit confused regarding the below scenario, any input from you guys would be greatly appreciated. EX2200(1) ------------- EX2200(2) Two EX series switches connected via an aggregated...
View ArticleEnabling Proxy Arp
Coming from Cisco, proxy arp is enabled by default on switches. I understand that on juniper switches (EX4300/4600) proxy arp is NOT enabled by default. My question is, does proxy arp need to be...
View ArticleI2C read from EEPROM device 0x51 failed
Platform: EX8216 Code: 15.1R6-S2.1 Description:Master and Backup Routing-Engines is not fetching any outputs.Customer performed format installation on both the REs. During the boot process, chassis is...
View ArticleDevice on Network Getting DHCP When Statically Configured on Separate VLAN
Greetings, We've been seeing some very strange behavior with some devices on our network. We have devices that are statically configured on a specific subnet. Yet, these particular devices are being...
View ArticleShutdown EX9204
Does anyone know the correct syntax to shut down an EX9204 running JUNOS 17? Documented commands do not work: request system power-off: doesn't exist (are you ^#%&* kidding me?)request system...
View ArticleIGMP-snooping Question
I need a bit of assistance here. I have the following situation. switch-1 with multicast sources attached. this is not my switch and I have no operational/config visability of it. This has...
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EX2200 buffer overflows leading to dropped packets?
Hi all,Trying to debug a problem with dropped packets from our firewall cluster; the cluster members are both connected to an EX2200 switch. When I look at the output of show interfaces <int>...
View Articledhcp snooping in MX
For the life of me, I am unable to get dhcp snooping to work on a juniper MX 480. We are using flexible-vlan-tagging and bridge-domains. I have tried setting one port to trusted, and another to...
View ArticleLAG Issue between Juniper EX2200-C and Cisco 3560 Layer 2 loop
Having some issues with a very simple Lab scenario between an EX2200-C and a Cat 3560. Both devices are basically in default configuration. The Juniper has the configuration listed below and the...
View ArticleWhat does the * aka asterisk symbol mean on a virtual chassis ?
Shown by the master here user@switch> show virtual-chassisVirtual Chassis ID: 0019.e250.47a0 Virtual Chassis Mode: Enabled Mastership Mixed Neighbor List Member ID Status Serial No Model priority...
View ArticleProvide a static DHCP reservation with no router information
I am running a legacy DHCP server on an EX3300 (v12.3).I have a few server interfaces that I want to address with DHCP reservations from within an existing pool but I DO NOT want them to receive a...
View ArticleBroadcast storm, loop, flood how to find from where the dissasters camming?
Hi, how can I find, what is wrong with my network? My topology is with access Cisco switches, distribution switches and Cisco core switches but the Cisco core switches they are in stack. And everything...
View ArticleSOLVED: DHCP server assigning addresses from wrong pool
2nd DHCP issue in as many days. EX3300 running legacy DHCP server is incorrectly distributing addresses from an adjacent pool. Output from dhcp_logfile shows the DHCPDISCOVER being received on...
View ArticleQFX5100 interface drops
Hello, I have a pair of QFX5100's configured as MC-LAG peers. I have an MC-LAG going up to an MX5 router - ge-0/0/41 on both QFX5100-A and QFX5100-B connect to MX5. The problem is I'm seeing drops in...
View ArticleExtend Existing Network Without Adding Switches to Virtual Chassis
Good day, everyone. My background is primarily Cisco, so I'm still cutting my teeth on Juniper's way of doing things. We have a virtual chassis composed of four EX-3300 48-port switches: One master,...
View ArticleEx3300 Virtual Chassis preprovisioning issue.
Hi Guys, I have an interesting issue. I have a 2 member VC where I am using preprovisioning. However that info seems to be getting ignored by the switches upon reboot. Even if I stagger the reboots the...
View ArticleFirewall filters: "Internet-only" for a VLAN
Hi there, I like to take my first steps into the world of firewall filtering on EX3300 switches, but the more I read the more I'm getting confused! :-)My first project is: From vlan123 everything...
View ArticleEX3300 Number of LAG limit
Hello,I have a set of 4 EX3300 devices setup as a Virtual-Chassis.I need to configure 40 LAG on it but I read in the documentation that EX3300 only support a maximum of 32 LAG.However, the cli allows...
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