Questions tagged [juniper-mx]

For questions about or involving the Juniper MX series routers. For instance, the Juniper MX10, MX80, MX204 etc.

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30 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 ...
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1answer
36 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 ...
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1answer
79 views

Understanding the Burst Size against policer for 1G/10G interfaces in Juniper MX

We are facing one confusion with regards to burst size value against rate limit or policer in Juniper MX. Need to understand two things :- (1) Is the burst size limit defined in firewall policer ...
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25 views

Dual Juniper MX80 problem

We have 2x Juniper MX80 routers with only one currently being actively used. Second one is waiting to take over in the event of disaster. We also have two ISP's that deliver network to our MX80. We ...
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0answers
63 views

10G Interface on Juniper MX Stops Transmitting Output Optical Power

We have been facing an issue on Juniper MX series router. We have 10G interface on our router. Its does not matter whether interface is connected to DWDM or interface itself is a dark fiber. The end ...
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2answers
231 views

Capturing LACP PDUs in an aggregated link on Juniper MX

We need to capture LACP PDUs on a member link of an aggregated bundle link on Juniper MX connected with other router via DWDM link and save the output in .pcap format using write-file knob. Can ...
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1answer
65 views

Transporting an Ethernet Port in a LDP Based VPLS Instance on Juniper MX routers

We are currently transporting an Ethernet Port using LDP Based Layer 2 VPN service (P2P PW) in Juniper MX.This P2P LDP PW is up and currently working. Below is the configuration against this:- set ...
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156 views

Juniper MX: how to populate VRF RIB with EVPN Type 2 MAC+IP routes

I have a Juniper MX router at the edge of EVPN/VXLAN domain. Let's suppose that MX performs routing only, no any kind of switching/bridging instances on it. I want to exchange EVPN VRF routes (type5 ...
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1answer
30 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 ...
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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 ...
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2answers
165 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 ...
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1answer
112 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 ...
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1answer
205 views

Juniper vMX Routers can't ping each other in GNS3

I have a couple of VMX Routers setup in GNS3 that are directly connected on their interface, ge-0/0/2 and they can't ping each other. PFB configuration. I can't seem to find the problem! UPDATE: Added ...
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1answer
77 views

BGP Authentication Key-Chain Between Cisco IOS XE L3 Switch (c9300-24S) and Juniper MX480 Router

Need to create a BGP authentication keychain between Cisco and Juniper devices. Need assistance with config commands for Cisco 9300-24S.
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1answer
22 views

Juniper MX: NTP broadcast on two VRFs with the same addressing

In Juniper, NTP broadcast is set at system level, so two VRFs cannot use the same addressing and use NTP broadcast at the same time. Is there any alternative?
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25 views

Does Junos convert routing policy into binary tree?

Let's say, that there is a following simply route policy in Juniper router: root@vmx> show policy test Policy test: Term 1: from route filter: 10.10.10.7/...
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74 views

NTP Sync issues between Palo Alto 3260 and Juniper MX10003

I'm using a Microsemi S650 as the primary ntp server and a Juniper MX10003 as the secondary ntp server. I have the palo alto 3260 configured as follows: [edit deviceconfig system ntp-servers] ...
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1answer
305 views

Configure jflow v5 get error: interface-name: 'xxx': Must be a services interface

friends: When I configure the jflow v5 on my MX-480: ===== admin@USA-MX-RE0# show forwarding-options sampling instance { MONITOR-FLOW { input { rate 1000; } ...
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1answer
184 views

Activating the NEBS Compliance SFP on Juniper MX disabled due to Ambient Temperature Exceeded

We have faced an issue on Juniper MX960 that some SFPs (10G Optics) were disabled due to ambient temperature exceeded. This was observed in the syslog messages on MX. However after the physical ...
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1answer
113 views

Juniper vMX logical system

Can some one please tell that Juniper vMX supports how many logical system? Some one mentioned on Juniper forum that it supports 15 Logical systems but in case of 3 Logical systems configured , 2 were ...
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1answer
1k views

JunOS: FPC Major error alarm

I hope everyone is doing fine! This morning I've run into a problem. My uplink interface went down for unknown reasons. Upon checking system alarms I see this: show system alarms 1 alarms currently ...
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94 views

Juniper MX Routing Engine Firewall Filter

I'm having difficulties with something I initially thought would be rather simple. I need to apply an outbound firewall filter on an MX10003's management interface. I'm currently using Lo0.0 as the ...
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1answer
44 views

If accept IP address term before discard port term, will the IP's port still be discard?

In my Juniper Router MX480's firewall filter DENY-EMAIL-PORT: dele@MX-RE0# show firewall filter DENY-EMAIL-PORT term ALLOW-IP { from { address { 102.100.100.1/32; ...
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1answer
414 views

Static ARP entry on MC-LAG ICL Link in Juniper MX routers

Can someone please explain in detail why we need to setup static arp entry on each MC-LAG peer. This is mentioned below in Juniper Documenttation https://www.juniper.net/documentation/en_US/junos/...
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1answer
130 views

Juniper Physical Interface Damping Operation

I'm currently looking at physical interface damping on Juniper MX. Fun Fact: Nowhere on this site is it mentioned that the penalty added per interface down event is 1000. Currently testing this: ...
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2answers
144 views

Understanding the IS-IS wide metric style for Traffic Engineering in Juniper MX

Can someone please explain why do we need to enable 'wide-metric' for IS-IS if we are going to enable MPLS Traffic engineering on Juniper MX routers? I mean what does traffic engineering has to do ...
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2answers
423 views

Deny ssh access from CPEs in all routing-instance - Juniper MX960

I try to deny ssh access from routing-instance CPEs in Juniper MX960 device. I want to know if there is a way to deny only ssh access attempt from any routing-instance.
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1answer
154 views

How to bypass when network speed over a special number in Juniper?

I have a requirement, such as I have 113.100.15.0/24 segment IP addresses. in Juniper M480 Router I connected to BGP-A(1G) and BGP-B(10G), by default the 113.100.15.0/24 out the Router it go ...
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1answer
541 views

My Juniper Router arp do not work, after clear MAC then it can work

In my MX Juniper router device, there have the IP 16.213.40.1's address: {master} admin@juniperMX> show arp no-resolve | ...
3
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1answer
635 views

Juniper MX: Leaking routes from RIB into VRF

Aim We have a firewall terminating IPSec VPNs to AWS. These are used in the event of failure of a pair of AWS Direct Connects. Currently, the VPNs are routed to AWS over the same Direct Connects ...
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0answers
106 views

How to verify that 'chained-composite-next-hop' knob is working on Juniper MX

We have to enable 'chained-composite-next-hop' on Juniper MX series routes in our network. We have already enabled knob 'enhanced-ip' on MX series. Is the knob 'chained-composite-next-hop' enabled by ...
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1answer
214 views

Rate Limit on Main Aggregated Interface (AE) without applying on Unit Level in Juniper MX

I want to apply rate limit on Main Aggregated Interface (AE) without applying on unit level. We have a customer connected with our Juniper MX480 via 100G Interface. The single 100G interface is a part ...
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0answers
267 views

Memory Utilization inceased on Routing Engine in Juniper MX

We recently faced high memory utilization on primary RE of Juniper MX. I have attached graph of Memory Utilization . It was as a result for copying some files from Backup RE to Primary RE (This is ...
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2answers
255 views

Junos[MX]: How to show VPLS instance associated with given subinterface

Suppose I have a subinterface with Vlan-vpls encapsulation, like this one: admin@router> show configuration interfaces ge-2/1/1 flexible-vlan-tagging; encapsulation flexible-ethernet-services; ...
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1answer
151 views

RSVP bandwidth value configuration in Juniper MX

Can someone please explain is it a good practice to change RSVP bandwidth value of an interface? We have two bundle links between R1 and R2 namely ae13 and ae22 . Both R1 and R2 are Juniper MX ...
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466 views

IS-IS Interface Metric/Cost Calculation Issue in Juniper MX

I am facing a very strange issue with regard to IS-IS Interface Metric / Cost calculation in Juniper MX. We have configured a reference bandwidth of 1000G on all routers.This by definition means an ae ...
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1answer
83 views

Juniper MX/SRX series interface monitoring command

Good morning all, I was curious due to an issue were currently troubleshooting in our environment if there is a command in Juniper that will allow us to determine the utilization percentage of an ...
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1answer
766 views

Rate-limiting policer on aggregated ethernet (AE) bundle

I am facing problem regarding firewall policier on Juniper MX platform. We have bundle link (AE Link) consisting of 2 x 10G links on which P2P IP is configured with customer for internet access. Now ...
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1answer
118 views

Is it possible to do layer 2 port mirroring for family inet/inet6 interfaces in Juniper MX series routers?

I have connected two logical systems using logical tunnels like this: [edit] root@mx1# show logical-systems r1 interfaces lt-0/0/10 unit 10 encapsulation ethernet; peer-unit 80; family inet { ...
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0answers
256 views

Do Juniper MX-series routers support per-interface jFlow/IPFIX sampling rate?

Do Juniper MX-series routers support per-interface jFlow/IPFIX sampling? For example, input sampling rate for xe-0/0/1 is one of 100 and input sampling rate for xe-0/0/2 interface is one of 500. I ...
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2answers
416 views

Issues with Juniper MX-series iBGP routes

I have a simple setup: 2x Juniper MX-Series routers each having one uplink to a transit provider iBGP session between both routers (point-to-point) For testing purposes I've disabled the uplink from ...
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1answer
1k views

DHCP relay on Juniper MX

Hi I got a problem with bootp relay on a juniper router(s). I got helpers bootp interface configured with: irb.10 broadcast server 10.20.1.10 server 10.20.1.11 theres several irb ...
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1answer
275 views

Config BGP policy for limit ISP path in Juniper MX 480 Router

Now we have a source IP14.135.4.0/24, we are involved in 5 different ISP, such as A, B, C, D, E. Now we want to access 14.135.4.0/24 not through the path of ISP B and ISP D, but through the other ...
2
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1answer
197 views

How do you schedule traffic that exits via a bridge-domain?

I've got a single MX router connected to two physical interfaces on an SRX chassis cluster - each interface being a member of a reth interface. In order to make this work, on the MX side I have the ...
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1answer
140 views

Juniper MX device not responding

Juniper MX-5. Power is on, lights are on, but device not responding. Console port not responding or displaying any output. Management port not accessible. When you restart the device no output is ...
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1answer
1k views

Juniper MX - vlan-ccc double tagged to untagged

On an interface to a customer of ours we configured double tagging. This interface is encapsulated with vlan-ccc because it is used in a l2circuit neighbor configuration. My question is: how can this ...
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1answer
137 views

What are the uses of clocking and timing ports on Juniper routers

There are 4 ports each named "Ext Ref clock", "TOD", "1PPS", "10Mhz" on MX104. I understand what each stands for and have vague idea of each after googling but what are they used for in real world?
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2answers
2k views

Gig interface in vMX

can you please help me on how to convert the em interface to gig interface in the vMX, i am trying to assign interface to vrf and the em is not support. thanks in advance.
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0answers
632 views

Logical-Tunnel Interface Juniper MX 480 doesn't “work”

I have configured a logical tunnel between my master-routing-instance and a additional routing-instance. I tested the same config (except IP addresses) on my lab-system and on one of our other core-...
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1answer
983 views

Need help with PPPoE Subscriber Management on a MX80

I've been working with Subscriber Management using DHCP and a FreeRadius server and have been quite successful. Of course, once my company heard that it is possible for customers to bring their public ...