Questions tagged [juniper]
A tag for questions involving Juniper Networks hardware or software.
517
questions
2
votes
1
answer
128
views
Is it possible to limit the configuration rollback count in MX-series?
I tried set system max-configuration-rollbacks in mx480, but it shows unsupported platform .
##
## Warning: statement ignored: unsupported platform (mx480)
##
max-configuration-rollbacks 25;
is there ...
- 1,747
0
votes
1
answer
1k
views
How to check the disk partitions usage of juniper device?
In this article : https://kb.juniper.net/InfoCenter/index?page=content&id=KB33032&cat=ROUTER_PRODUCTS&actp=LIST
root@PE1:/var/home/labroot # gpart show -p
=> 34 62533229 ada0 ...
- 1,128
2
votes
1
answer
599
views
Avoiding FPCs rebooting during RE switchover on Juniper EX8200 Switche
We have Juniper EX8208 chassis based switch running in a production environment. The switch has 2 REs running in active and standby role with RE0 being the primary routing engine. The device is ...
- 1,110
1
vote
2
answers
492
views
Can I delete the /var/rundb/private directory?
under my Juniper MX480.
/var/rundb/
the private directory occupy a large size,
root@LA-MX480-RE0:/var/rundb # du -cks * | sort -rn
16691128 total
16275464 private
74976 lr-juniper.db
74912 ...
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0
votes
1
answer
599
views
EX4200-48T power Consumption
I read Juniper documents but i could not find how much power does Juniper EX4200-48T consume?
can anyone help me?
thank you.
- 577
4
votes
1
answer
5k
views
Juniper "show route receive-protocol bgp" output meaning
When you show the received route from a specific neighbor in BGP with a Juniper, the output is the following :
show route receive-protocol bgp X.X.X.X
inet.0: V destinations, W routes (X active,...
- 425
2
votes
0
answers
111
views
No entry in the multicast RIB while PIM join is present
I have a router which receives multicast traffic from the source over a multicast LSP(signaled by LDP):
root@PE3> show pim join detail
Instance: PIM.master Family: INET
R = ...
- 1,217
0
votes
1
answer
130
views
Juniper vMX router silently drops SSM traffic
I have a Juniper vMX router with two interfaces: ge-0/0/0.0 facing the multicast sender and ge-0/0/2.0 facing the multicast receiver. The router receives multicast packets addressed to 232.1.1.1 on ...
- 1,217
2
votes
1
answer
348
views
What could prevent active routes from being transferred into Junipers forwarding table?
In a setup with two routers and two upstreams, I've stumbled over an issue that for IPv6 routes only, none of the active paths are installed into the forwarding table of one of the routers (called ...
- 192
2
votes
1
answer
129
views
Transporting TRILL over Juniper QFX5100
I've got 2 Brocade VDX switches setup using VCS and want to add another 2 switches to this group, but when connected to each other over a Juniper QFX5100, they won't see each other.
The Brocade ...
- 121
0
votes
2
answers
543
views
PVLAN on juniper- native isolated VLAN & trunk
I'm trying to use PVLAN to isolate devices (servers) on a L2 network from each other. However, these devices are currently sit on trunk ports, because they have VLAN-aware IPMI interfaces.
My config ...
1
vote
1
answer
309
views
How do I rename a Junos BGP group?
Is it possible to change a special place in Junos rather than delete?
In my case I want to change the ebgp-AS1009 to ebgp-AS23100, as far as I know only can delete the group ebgp-AS1009 then re-set. ...
- 1,747
1
vote
1
answer
677
views
What determines if a Juniper router is a route reflector client?
When I read bgp router reflector document:
You see the topology is this:
You see the Router A B C are in one cluster, D E are not clients of it.
but how to configure to become this?
I compared with ...
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4
votes
1
answer
87
views
Why test routing policy do not match in vMX?
This is my routing-policy:
policy-statement rp-add-as-path-3times-local-as {
term prefix1 {
from {
route-filter 1.1.1.0/22 orlonger;
}
then {
as-...
- 1,747
1
vote
2
answers
498
views
Questions about logical-systems of juniper
In my Juniper MX480, the logic-systems config is below:
[edit]
logical-systems {
r1 {
interfaces {
ge-0/0/0 {
unit 0 {
family inet {
...
- 1,128
1
vote
1
answer
386
views
With reference to Juniper MX , what's the difference between Bridge Domain and Learning Domain?
I am trying to understand the difference between bridge domain and learning domain. I have tried to read through documentation and Juniper MX series book but no success.
Need to understand the ...
- 1,110
1
vote
1
answer
1k
views
How to import a file into Junos main config file?
How to import a file into Junos config file?
there is a case, I have a long prefix-list in config file:
set logical-systems LR6-1931 policy-options prefix-list C20060 11.92.0.0/20
set logical-systems ...
- 1,747
4
votes
3
answers
916
views
Why eBGP don't need config local-address?
There is a manual for me to learn Junos.
you see the external peer configuration, there is no local-address option, but internal has. why eBGP configuration do not need it?
- 1,747
1
vote
1
answer
603
views
CB fabric links require upgrade/training after adding New FPC in Juniper MX480
We are running a Juniper MX480 router is a production environment. Due to increase in traffic trend , it was required to installed new FPC 'MPC-3D-16XGE-SFPP' into slot 5 of MX480. Before the addition ...
- 1,110
1
vote
1
answer
72
views
Why the route comes from different AS?
Before, I know the AS path of BGP properties, such as the 200 100i means the route originate from AS100, use network import the route and through AS200, however in my case:
admin@MX480> show route ...
- 1,747
1
vote
0
answers
48
views
Redirect Junos IP public -> IP private
we have an MX204 here that works as our BGP, border router and it is gateway of a service that has private IP, I need to access this service with private IP outside our network, you can tell me if I ...
- 23
2
votes
1
answer
467
views
Juniper SRX Management Redirects
I've a Juniper SRX 340 Cluster (15.1X49-D70.3) on which I have some trouble with the Web management GUI.
Since some time, when I try to access the Web board, I get the error "...
- 371
1
vote
1
answer
59
views
what's the differences of two `filter` under `edit firewall` in junos?
I found there are two places of filter under firewall, [edit firewall filter filter-name] and [edit firewall family inet filter filter-name].
what's the differences of them?
- 1,747
0
votes
1
answer
71
views
Is it only one Active route for a special destination?
When I read juniper document about show route:
I show route IP:
admin@MX480> show route 14.104.112.1
inet.0: 837234 destinations, 1784889 routes (832157 active, 0 holddown, 862249 hidden)
+ = ...
- 1,747
0
votes
1
answer
793
views
What's the meaning of these interfaces' prefix?
When I watch juniper tutorial time at 10:22,
there have Services Interfaces introduction:
but in my mx480 router, there have several interfaces I don't know prefix meaning.
lt-0/0/10.6 ...
- 1,747
2
votes
2
answers
625
views
Why my MX480 have 6 FPC slots, however the document say only support 3?
In Juniper PFC document:
The maximum number of supported FPCs varies per router:
MX480 router—3 FPCs
but in my MX480, why there have 6 FPC Slots.
admin@MX480-RE0> show chassis fpc
...
- 1,747
0
votes
1
answer
313
views
My Juniper router do not have j-web configuration
I follow Juniper docs:
I want to set up the j-web. but in my Junos do not have set system services web-management http.
admin@MX480-RE0# set system services ?
Possible completions:
<[Enter]&...
- 1,128
6
votes
0
answers
699
views
EVPN MAC Advertisement route not installed to L2 forwarding table
I have a VLAN-based EVPN connecting two sites in a lab environment based on the network topology described in the DAY ONE: USING ETHERNET VPNS FOR DATA CENTER INTERCONNECT book:
For some reason, it ...
- 1,217
1
vote
1
answer
1k
views
How to find invalid sessions on Juniper SRX 5800 series Firewall
In Juniper SRX 5800 series Firewall , when we run the command 'show security flow session summary node 0' , we see that it shows large numbers of sessions as invalidated. But we don't know ...
- 1,110
2
votes
1
answer
399
views
What exactly does a Juniper PE use to find the correct transport LSP for the L2 circuit(Martini) neighbor?
Let's say, that I have a following simple L2 circuit(Martini) configuration:
root@PE4> show configuration protocols l2circuit
neighbor 192.168.2.2 {
interface ge-0/0/5.777 {
virtual-...
- 1,217
6
votes
1
answer
312
views
How does a Juniper PE associate frames from the CE with correct route in <VPN_name>.l2vpn.0 table in case of Kompella L2 VPNs?
Let's say, that I have a following simple BGP-signaled L2VPN configuration:
root@PE4> show configuration routing-instances
vpn-b {
instance-type l2vpn;
interface ge-0/0/0.515;
route-...
- 1,217
2
votes
2
answers
1k
views
Junos "request system software validate" safety
Just want to clarify: is it safe to issue the command
request system software validate /var/tmp/image.tgz
on a production Juniper MX router not during maintenance? Can I break something with this ...
- 187
5
votes
1
answer
833
views
Finding the right BFD timers between Juniper QFX5110 and Cisco ASR1000
I am trying to configure BFD for both OSPF and BGP on the Cisco ASR1000 (non X) and Juniper QFX5110. The problem is that the QFX doesn't officially support BFD timers lower than 1000ms without ...
- 1,478
1
vote
2
answers
131
views
2 AS in the same box JunOS
Today we have an MX204 and we announced our AS using Juniper, but we also have partnership with another internet provider that has another AS. This other AS has much less client and a much smaller ...
- 23
1
vote
1
answer
2k
views
What's the meaning of `unit 0` and `family ethernet-switching`?
What's the meaning of `unit 0` and `family inet`?
With the above question, I learned the meaning of unit 0 and inet.
So what does ethernet-switching mean?
root@test> show configuration
...
...
...
- 13
3
votes
1
answer
2k
views
Juniper keeps a received BGP prefix in hidden state when the BGP next-hop is overwritten to a static route
I have a routing policy named rtbh configured as an ingress policy for a BGP peer:
root@PE3> show configuration policy-options policy-statement rtbh term ipv4 | display inheritance no-comments
from ...
- 1,217
0
votes
1
answer
95
views
is it possible calculate a IP of Transit Traffic's rate in Juniper port mirroring?
In Juniper Router MX480, we can configure the port mirroring of a transmit port.
then, is it possible calculate a IP of Transit Traffic's rate in Juniper port mirroring?
I mean, I can configure B port ...
- 1,747
1
vote
3
answers
1k
views
Policy Based Routing by Interface and IP
Is it possible on Juniper or Cisco to configure PBR where it matches on an ingress interface AND a source IP address?
My scenario traffic flows are as follows:
Router1 > Router2 > WAN_Optimiser &...
- 25
1
vote
1
answer
378
views
ip-prefix-routes with vxlan encapsulation on Juniper MX80 / MX104 17.3R3
I want to check whether this configuration is acceptable by MX80 or MX104 Junos 17.3R3 (JTAC recommended version)?
Example configuration:
set routing-instances VPN100 instance-type vrf
set routing-...
- 187
1
vote
1
answer
136
views
Using XFP-10G (120 KM Range) on Juniper MX routers
Hi everyone,
We recently installed a new 10G XFP optics module in Juniper MX router. As per the customer , XFP supported range is 120 KM and it is from some third party vendor named 'menara'.
Menara ...
- 1,110
0
votes
1
answer
319
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 ...
- 577
1
vote
1
answer
535
views
BGP "protocol next hop" resolves to different next-hop address than the same IP using ISIS
I have a BGP-learned prefix 130.130.0.0/24 with protocol next hop 10.0.2.5:
root@r2> show route 130.130.0.0 detail
inet.0: 60 destinations, 61 routes (57 active, 0 holddown, 4 hidden)
130.130.0.0/...
- 1,217
1
vote
1
answer
64
views
QFX3500 RTG Question
i have 2x ae interface in my QFX3500 and i want to use ae1 as primary and ae2 as backup and here is my
config :
set protocols rstp interfaces ae1 disable
set protocols rstp interfaces ae2 disable
...
- 577
0
votes
1
answer
72
views
Juniper QFX3500 performance
We want to use a pair of juniper qfx3500 in virtual chassis mode and we have around 1000x SVI with 7 bgp peer and no full table and around 20gbps bps and 8m pps, can qfx3500 handle this amount of ...
- 577
0
votes
0
answers
145
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 ...
- 187
4
votes
2
answers
987
views
RE Protection vs DDOS Protection in Juniper MX series routers
Hi Everyone,
Need to know the clear differences between RE protection and DDOS protection in Juniper MX. Both are used to save routing engine from depletion of resources. As mentioned in Juniper MX ...
- 1,110
1
vote
1
answer
297
views
Virtual Chassis Setup in Juniper EX4200 Using Mixed Interface Types
We want to setup Virtual Chassis using 2 x Juniper EX4200 switches. In case of Virtual Chassis for EX4200 , we have to use 2 x VC cables (connected back to back) between 2 x Ex4200 switches along with ...
- 1,110
1
vote
3
answers
1k
views
What are the Major Differences between Juniper EX4200 vs Juniper EX4300?
Can someone please explain that what are the major differences between Juniper EX4200 and Juniper EX4300 switches? Both are standard Juniper Ethernet switches but is there any situation where EX4300 ...
- 1,110
0
votes
1
answer
500
views
mx480 "PEM 3 absent" alarm
I have an alarm showing up on an MX480 after removing unused PEMs: "PEM 2 Absent". The mx480 only has 2 FPCs populated, which keeps it fully redundant with 2 PEMs online (each zone is 25%). ...
2
votes
1
answer
403
views
With regards to Juniper Networks , how does 'targeted-distribution' knob works?
Can someone please explain how does the knob 'targeted-distribution' works in Juniper MX routers.
We created aggregated Ethernet (AE) links on our Juniper MX router acting as BNG. However , after ...
- 1,110