Questions tagged [juniper]
A tag for questions involving Juniper Networks hardware or software.
19
questions
8
votes
7answers
22k views
Juniper EX-series: How can I transfer a config from one switch to another?
I have a lab EX-2200 that has a config on it that I now want to replicate onto four more EX-2200's... I'm sure there's probably an easy way to do this, but couldn't find it on the Juniper KB or by (a ...
5
votes
3answers
1k views
Traceroute doesn't show one hop?
I have an interesting issue where my traceroute skips one hop on the way. I do not know why but it seems to be some kind of Juniper behaviour which I do not understand yet. Blue routers are Cisco ...
5
votes
1answer
1k views
Juniper destination based CoS
I'm trying to do destination based CoS on Juniper MX basing on destination ASN.
I've tried config below.
set policy-options as-path BGP-PATH-TO-MARK-COS "65512 .*
set policy-options policy-statement ...
1
vote
2answers
1k views
How can I set the Juniper EX3300 Switch's Interface traffic speed?
How can I set the Juniper EX3300 Switch's Interface traffic speed?
Before asking this question I have attempted many methods, all fail.
first of all, set the Interface traffic speed is not the ...
0
votes
1answer
37 views
qfx5300 fan issue
I have a 2x QFX3500 in virtual chassis mode and every 1-2 month one of my Fan trays showed as failed and everything is ok , Fan trays are spining at the normal speed they have 1unit free space from up ...
4
votes
1answer
659 views
Juniper EX4200 how to select s-vlan from c-vlan on dot1q-tunneling access port?
How do I tell Juniper EX4200 to push specific S-VLAN based on C-VLAN on q-in-q (dot1q-tunneling) port?
For instance I want to instruct EX4200 to perform Q-in-Q using these rules:
1) If a single-tag ...
4
votes
1answer
129 views
[L4, F/W]How can I deal with SPEED?
I have a problem about Speed when accessing web servers..
[Circumstances]
Everything is OK, every packet flows well.
However, now I have focused on the speed...
That is, connection is ok
[Issues]
...
3
votes
1answer
322 views
Could launching a virtual router with less-than-recommened RAM cause interfaces to not initialize?
I'm trying to launch a few vSRX devices through GNS3 (and VirtualBox). The issue that I'm running into (I think) is that my interfaces seem to not properly initialize if I don't start the instances ...
17
votes
4answers
8k views
Are there any reasons to not use BFD?
In looking to implement Bidirectional Forwarding Detection (BFD) it seems to be very flexible in terms of timer tuning, light weight regarding any overhead and it's flexibility in terms of overall ...
9
votes
1answer
3k views
Juniper SRX HA links passing through switch
it is necessary to join two srx650 in chassis cluster (Passive/Active) via two switches EX4200 . I need to choose one from three examples.
Please , help to define correct choice and describe what the ...
9
votes
3answers
7k views
Cisco can't connect to Juniper device via SSH - Invalid modulus length
I'm trying to connect from a Cisco 886VA to a Juniper EX2200 via SSH. The connection fails with the following messages on the Cisco:
*Jan 17 09:51:20.823: SSH2 CLIENT 0: Server has chosen 2056 -bit ...
7
votes
2answers
963 views
DSCP trust boundary
I have performed some analysis and noticed that traffic coming in from the Internet contains a myriad of DSCP values. This traffic competes for voice and video resources on the internal network.
How ...
5
votes
2answers
2k views
Juniper trunking with two links (not using LAG)
Some reason I'm drawing a blank on this. Let's say I have two EX switches connected together with 2 links to each other (xe-0/1/0 and xe-0/1/1 on both switches).
I can easily setup a trunk on one of ...
4
votes
1answer
709 views
Juniper EX4200 QinQ question
newbie here with a very similar question to one that was posted a couple of years back ... only slightly different (so, as the original question was asked so perfectly, I've copied it nearly verbatim ...
3
votes
1answer
2k views
Junos feature to accept multiple BGP paths from multiple peer AS
Cisco IOS provides this hidden BGP command:
router bgp <ASN>
bgp bestpath as-path multipath-relax
It allows the router to install multiple BGP prefixes with distinct as-path'es (but ...
3
votes
1answer
323 views
Configuring BFD for OSPFv3 between IOS-XE and JunOS
i need to implement BFD on a IGP Link with dual-Stack OSPFv3 between an IOS-XE device (ASR903) and a Juniper MX480.
i'm running BFD for Dual-Stack OSPFv3 members on many links between IOS-XE and IOS-...
2
votes
1answer
5k views
What's the meaning of `unit 0` and `family inet`?
In my JunOS configure mode, I show the interfaces:
[edit]
root@Olive# show interfaces
em0 {
unit 0 {
family inet {
address 192.168.47.2/24
}
}
}
em1 {
vlan-...
1
vote
1answer
323 views
My two Juniper J2320 Routers can't ping each other
FINALLY GOT IT TO WORK
I have two J2320s connected by an Ethernet cable.
The cable is connected to both in their ge-0/0/1 unit 0 interfaces.
One is 192.168.2.5/24 and the other is 192.168.2.13/24
...
0
votes
0answers
47 views
How to connect EVPN DC Fabric to MPLS IP VPN Backbone
Let's suppose that we have a common Clos EVPN/VXLAN-based DC fabric with IP gateways on leaves (anycast gateways). Also there is a lot of different IP VRFs inside a fabric where end hosts reside.
What ...
