JunOS version for QFX5100
Hi,I want to upgrade JunOS on some of the QFX5100 that are in production. I found that the JTAC recommended version for this model is 18.1R3-S9 / 18.4R2-S3. I have selected 18.4R2-S3 to be installed on...
View ArticleQFX VC suddenly stops handling packets
Hi,Two times the last couple of weeks a QFX (5100-48s) VC (two switches) has just stop handling packets on two different L2 trunk ports.And the only way (that i have found) to get it to start handling...
View ArticleSwitch in 4300-MP virtual chassis shuts down PPMD_PFE_SHUTDOWN
We have a fairly new EX4300-MP virtual chassis, running 18.4R2.7. No one in the building most days at this point. We had a switch in that chassis disappear. Power and stack cables all seated and...
View ArticleCreate VC and add new switch to existing single switch stack
Hello,Looking for the best way to go about this. I have a single ex2300 in production now, and I need to add another switch to that stack. I want to create a VC and join this new switch to it, just not...
View ArticleEX4600 initial config without console cable
Hi all,Is there any way to avoid the console port initial config for a EX4600? The manual just shows how to do the initial config using the console port. Juniper provide a RJ-45 to DB-9 console cable...
View ArticleClik here to view.
Loop / flood in network after moving from EX to QFX
Hello,We have the following topology:CORE3 = EX4550-32T, 12.3R6.6CORE3-New = QFX5100, 18.1R3-S7.1CORE1 = EX4550-32F, 12.3R6.6CORE3 config:set forwarding-options analyzer VOIP input ingress interface...
View Articleunable to commit, safe to delete these?
/var/jail/etc 123M 122M -9.5M 108% /packages/mnt/jweb-ex-12.3R11.2/jail/var/etc/var/jail/run 123M 122M -9.5M 108%...
View ArticleClik here to view.
OSPF Virtual Links
HI Team , i have a some questiones regarding the ospf virtual links. Topology is as below. how can i communicate between Area0 and Area 3. do i need to create virutal link from ( B to C and C to D) or...
View Articlecisco IPDT (IP Device tracking)
Hi Experts Is there any equivalent feature in Junos like cisco IPDT (IP Device tracking) ? Thanks & RegardsBadar
View Articlemigrating from cisco to juniper EX3400 VC
I have 36 cisco switches that needs to be migrated over to Juniper EX3400 VC. I know Juniper discontinue the migration tool they have on the web but I wish they still have it available or able to get...
View Article[EX/4200] WEB_CONFIG_OPEN_ERROR: Could not open '/jail/var/etc/httpd.conf'...
Hi, after upgrading to Junos 12.3R12-S14 on my EX 4200 switch I can not access the web-management anymorejunos version> show version fpc0:...
View ArticleClik here to view.
LOOP protection in RSTP
Normally, in RSTP when ALT port can't receive the bpdu from designated port ( ONLY bpdu packets can't through some transmission device between 2 switches ,but the physical link is normal ) ,it will be...
View ArticleEX3400 DHCP Snooping not working?
Hi all, I've searched around Google/these forums for many hours and have looked at many a thread and Juniper TechDoc. I cannot seem to validate that DHCP snooping is 1.) configured correctly and 2.)...
View ArticleLLDP table uses ID
Hey Guys,I have a python script which constructs LLDP frame and sends it to the switch, example capture:07:52:50.282224 LLDP, length 50 Chassis ID TLV (1), length 18 Subtype Local (7):...
View Articlehow to allow ex2200 to pass any vlan that customer might push
Hello All, We deploying simple erp ring made of 4 EX2200 switches for certain customer. The customer expects to pass random vlans accross the switches and doesnt want to be limited specific vlans, more...
View ArticleClik here to view.
Can I uplink a non-VCF switch to an existing QFX5100 Virtual Chassis Fabric
Hi Please can anyone provide any advice? My company runs a VCF with 6 QFX5100s with 2 Spine and 4 Leaf switches.Please can someone tell me if it possible to 'uplink' another switch platform with a...
View ArticleClik here to view.
RSTP between EX3400 and QFX5110 in VC
Hello, I would like to know if it is best practice to implement RSTP in a VC switches. in My design, i have ex3400 switches in a VC and they have uplinks connected towards QFX5110 switches that are...
View ArticleEX2300 -c 12p 15.1X53-D591.1 does not come back after power restoration
Is that normal that it does not come back after power restoration? I had to completely unplug power cord and plug it back in order to get the switch up & runing again. I thought it should come back...
View Article