# MPLS **URL:** https://forum.networklessons.com/c/routing-switching/mpls/15.md?page=1 [Latest](https://forum.networklessons.com/latest.md) · [Categories](https://forum.networklessons.com/categories.md) **Page:** 2 --- ## [LDP MPLS AToM](https://forum.networklessons.com/t/ldp-mpls-atom/7458)
**Author:** [@karthik.vov](https://forum.networklessons.com/u/karthik.vov)\ **Replies:** 0\ **Last updated:** [June 18, 2019, 12:34am UTC](https://forum.networklessons.com/t/ldp-mpls-atom/7458 "2019-06-18T00:34:28Z")
Hi, I’m wondering what is the exact benefit of using targeted LDP session, especially in the case of AToM. Why we need targeted LDP session between PE routers, I think even if we dont have targeted LDP session we can pa… --- ## [VRF Lite explained](https://forum.networklessons.com/t/vrf-lite-explained/7088)
**Author:** [@sufianallan](https://forum.networklessons.com/u/sufianallan)\ **Replies:** 0\ **Last updated:** [May 11, 2019, 7:39am UTC](https://forum.networklessons.com/t/vrf-lite-explained/7088 "2019-05-11T07:39:23Z")
Hi Rene, I am a little confused regarding the VRF lite, now when we use vrf lite, do we have to use the RD value for simple segregation of traffic? and when do we use the RD value with vrf lite? Do we need to used addr… --- ## [IPSec GRE Tunnel Encryption over MPLS VPN](https://forum.networklessons.com/t/ipsec-gre-tunnel-encryption-over-mpls-vpn/6969)
**Author:** [@shane\_corban](https://forum.networklessons.com/u/shane_corban)\ **Replies:** 3\ **Last updated:** [May 3, 2019, 7:31am UTC](https://forum.networklessons.com/t/ipsec-gre-tunnel-encryption-over-mpls-vpn/6969 "2019-05-03T07:31:40Z")
Hi, I’ve setup a simulated core SP network with CSR1KVs, and at the customer edge I want to have an encrypted GRE tunnel end to end, from CE1-Richmond to CE1-Maine for example. I have the gre tunnel up and active, I so… --- ## [MPLS L2VPN vs L3 VPN](https://forum.networklessons.com/t/mpls-l2vpn-vs-l3-vpn/6910)
**Author:** [@rahulrajmadhapur](https://forum.networklessons.com/u/rahulrajmadhapur)\ **Replies:** 1\ **Last updated:** [April 25, 2019, 6:42am UTC](https://forum.networklessons.com/t/mpls-l2vpn-vs-l3-vpn/6910 "2019-04-25T06:42:11Z")
Hi Rene and team, Could you please what is the difference between MPLS L2VPN and MPLS L3 VPN. i read articles on MPLS L3VPN, but specifically i could not get MPLS L2VPN. Request you to explain MPLS L2 VPN use cases an… --- ## [How EVC and BDI work?](https://forum.networklessons.com/t/how-evc-and-bdi-work/6556)
**Author:** [@rehabzenati](https://forum.networklessons.com/u/rehabzenati)\ **Replies:** 3\ **Last updated:** [April 3, 2019, 7:37am UTC](https://forum.networklessons.com/t/how-evc-and-bdi-work/6556 "2019-04-03T07:37:59Z")
Hi Rene, I currently work as a support for a company that applies an Ethernet Virtual Connection, BDI, and QinQ tunneling I am only a CCNA level but I must understand these technologies Could you please guide me to wh… --- ## [VPNV4 Label in L3 VPN](https://forum.networklessons.com/t/vpnv4-label-in-l3-vpn/5967)
**Author:** [@Ritesh.thakur23](https://forum.networklessons.com/u/Ritesh.thakur23)\ **Replies:** 1\ **Last updated:** [January 18, 2019, 11:38am UTC](https://forum.networklessons.com/t/vpnv4-label-in-l3-vpn/5967 "2019-01-18T11:38:38Z")
Hi Friends, In L3 VPN we have the option for VPNV4 label which is created by BGP on PE router.How come the egress PE knows to which customer the packet has to deliver using this label. Thanks Ritesh --- ## [Introduction to MPLS Lesson Question](https://forum.networklessons.com/t/introduction-to-mpls-lesson-question/5540)
**Author:** [@mcpp66](https://forum.networklessons.com/u/mcpp66)\ **Replies:** 1\ **Last updated:** [November 28, 2018, 12:09pm UTC](https://forum.networklessons.com/t/introduction-to-mpls-lesson-question/5540 "2018-11-28T12:09:58Z")
In the lesson, when configuring MPLS you state “Once again I will configure iBGP between PE1 and PE2 but this time I will use their loopback interfaces. You will see why in a minute”, however I’m not seeing why you decid… --- ## [How verify card support QOS](https://forum.networklessons.com/t/how-verify-card-support-qos/5259)
**Author:** [@u.forte](https://forum.networklessons.com/u/u.forte)\ **Replies:** 1\ **Last updated:** [October 27, 2018, 11:19am UTC](https://forum.networklessons.com/t/how-verify-card-support-qos/5259 "2018-10-27T11:19:12Z")
Hi, I want information i have cisco router 7609 (PE) MPLS and i have the follow card installed ws-f6700-dfc3c RSP 7200-3c-GE Supervisor ws-X6748-GE-TX i want know if there is a configurator on cisco sites for to see the… --- ## [Leaking VRF routes on the same switch](https://forum.networklessons.com/t/leaking-vrf-routes-on-the-same-switch/5114)
**Author:** [@shannon.williams](https://forum.networklessons.com/u/shannon.williams)\ **Replies:** 1\ **Last updated:** [October 11, 2018, 10:57am UTC](https://forum.networklessons.com/t/leaking-vrf-routes-on-the-same-switch/5114 "2018-10-11T10:57:28Z")
Hi! I am working a 3850 switch running IOS-XE 16.6.2 that has two vrf’s (red01 and blue02). Is it possible to leak routes between the vrf and the global only? The vrf’s can not know about each other - only communicate… --- ## [MPLS Backbone Redundancy](https://forum.networklessons.com/t/mpls-backbone-redundancy/3859)
**Author:** [@van.de.bergz](https://forum.networklessons.com/u/van.de.bergz)\ **Replies:** 3\ **Last updated:** [May 14, 2018, 2:46pm UTC](https://forum.networklessons.com/t/mpls-backbone-redundancy/3859 "2018-05-14T14:46:35Z")
Hello. Recently I’ve been learning in a lab about MPLS infrastructure. I’ve got questions from my lecturer about redundancy in an MPLS backbone. The MPLS L3 VPN lesson is already good enough start. I’ve tried to improvis… --- ## [MPLS LSR Failling](https://forum.networklessons.com/t/mpls-lsr-failling/3517)
**Author:** [@leonard-wagner](https://forum.networklessons.com/u/leonard-wagner)\ **Replies:** 4\ **Last updated:** [May 3, 2018, 11:35am UTC](https://forum.networklessons.com/t/mpls-lsr-failling/3517 "2018-05-03T11:35:03Z")
Hey Guys, can anyone please describe what happens if one LSR fails on the LSP? What makes sure that we go a new way? As example, we have this Topology from the Lesson “MPLS Layer 3 VPN Explained”, but with more then o… --- ## [VASI (VRF Left, VRF Right)](https://forum.networklessons.com/t/vasi-vrf-left-vrf-right/2688)
**Author:** [@ccnp.manami](https://forum.networklessons.com/u/ccnp.manami)\ **Replies:** 1\ **Last updated:** [January 15, 2018, 6:45am UTC](https://forum.networklessons.com/t/vasi-vrf-left-vrf-right/2688 "2018-01-15T06:45:44Z")
Hi Rene, Can we have a detail explanation on VASI (VRF Left and VRF Right) interface. What it is? Why it’s came? How to Configure them? Regards, Manami --- ## [What is targeted LDP?](https://forum.networklessons.com/t/what-is-targeted-ldp/2507)
**Author:** [@deepika29jain](https://forum.networklessons.com/u/deepika29jain)\ **Replies:** 1\ **Last updated:** [December 6, 2017, 11:09am UTC](https://forum.networklessons.com/t/what-is-targeted-ldp/2507 "2017-12-06T11:09:14Z")
could you please give what is Target LDP and how is this different from LDP ? --- ## [Mpls bgp soo](https://forum.networklessons.com/t/mpls-bgp-soo/609)
**Author:** [@drbk563](https://forum.networklessons.com/u/drbk563)\ **Replies:** 4\ **Last updated:** [November 28, 2017, 2:04am UTC](https://forum.networklessons.com/t/mpls-bgp-soo/609 "2017-11-28T02:04:28Z")
Hi, Can you please explain how the BGP SSO feature works when used in a MPLS VPNv4 environment? I understand that it’s configured on the PE routers where the same client is connected and using the same BGP AS number at … --- ## [MPLS L3 VPN Label Selection](https://forum.networklessons.com/t/mpls-l3-vpn-label-selection/2303)
**Author:** [@prathap.bgl](https://forum.networklessons.com/u/prathap.bgl)\ **Replies:** 1\ **Last updated:** [October 27, 2017, 12:14pm UTC](https://forum.networklessons.com/t/mpls-l3-vpn-label-selection/2303 "2017-10-27T12:14:52Z")
Hi: I just went through the MPLS L3 VPN topic. One thing I did not understand is who and how did the P routers know what labels to swap with ? who and how was this setup ? --- ## [MPLS OSPF need for an IGP over the SP](https://forum.networklessons.com/t/mpls-ospf-need-for-an-igp-over-the-sp/2094)
**Author:** [@kawshiksark](https://forum.networklessons.com/u/kawshiksark)\ **Replies:** 1\ **Last updated:** [August 31, 2017, 9:17am UTC](https://forum.networklessons.com/t/mpls-ospf-need-for-an-igp-over-the-sp/2094 "2017-08-31T09:17:01Z")
In your MpLS lesson..i see you have used for OSPF and BGP…I can see you have used OSPF between your PE routers…i wonder why that is…does you IGP need to be advertised through the ISP network? --- ## [Mpls label not showing in the traceroute](https://forum.networklessons.com/t/mpls-label-not-showing-in-the-traceroute/2086)
**Author:** [@senthil.naidu](https://forum.networklessons.com/u/senthil.naidu)\ **Replies:** 1\ **Last updated:** [August 31, 2017, 8:38am UTC](https://forum.networklessons.com/t/mpls-label-not-showing-in-the-traceroute/2086 "2017-08-31T08:38:35Z")
Hi, when i try to traceroute from PE1 loopback to PE2 loopback i dont see the labels in the trace it just shows \* do we need to enable any thing to display the same. im trying the example in IOL. --- ## [Unable to ping from CE router to CE router](https://forum.networklessons.com/t/unable-to-ping-from-ce-router-to-ce-router/932)
**Author:** [@kanth.kapil](https://forum.networklessons.com/u/kanth.kapil)\ **Replies:** 1\ **Last updated:** [January 4, 2017, 8:48pm UTC](https://forum.networklessons.com/t/unable-to-ping-from-ce-router-to-ce-router/932 "2017-01-04T20:48:07Z")
Hi, I have just started leaning MPLS. The problem is I am unable to ping the Loop back interface on CE router from another CE router, even though it is showing up in the routing table. I am suspecting that the Cause for… --- ## [Mpls pe/ce](https://forum.networklessons.com/t/mpls-pe-ce/724)
**Author:** [@e.cordial](https://forum.networklessons.com/u/e.cordial)\ **Replies:** 1\ **Last updated:** [September 26, 2016, 1:25pm UTC](https://forum.networklessons.com/t/mpls-pe-ce/724 "2016-09-26T13:25:40Z")
Hi Rene, I should say that your site really helped me a lot in getting my CCNP. Big Thanks! Regarding the lab above, i am just quite puzzled why I am unable to ping CE2 (5.5.5.5) from CE1 (1.1.1.1) I checked thoroughl… --- ## [MPLS micro-cuts and upper-layer problems](https://forum.networklessons.com/t/mpls-micro-cuts-and-upper-layer-problems/709)
**Author:** [@dalibor](https://forum.networklessons.com/u/dalibor)\ **Replies:** 2\ **Last updated:** [August 30, 2016, 6:26pm UTC](https://forum.networklessons.com/t/mpls-micro-cuts-and-upper-layer-problems/709 "2016-08-30T18:26:48Z")
Hi Rene, i’m pretty struggling with a problem which is impossible to see from a “down”-layer view. While PRTG/Smokeping and so on only see how the average RTT goes from, for example, average 5ms to 20ms 20ms 20ms - we h… --- ## [LDP and loopbacks](https://forum.networklessons.com/t/ldp-and-loopbacks/568)
**Author:** [@rauldolz](https://forum.networklessons.com/u/rauldolz)\ **Replies:** 4\ **Last updated:** [January 3, 2016, 5:38pm UTC](https://forum.networklessons.com/t/ldp-and-loopbacks/568 "2016-01-03T17:38:13Z")
Hi Rene, I would like to ask you a question. I was doing a LAB between 2 PE. Both PEs had a MPBGP configuration to transport the two VRFs via iBGP. My BGP configuration, the neighbor, was the physical interface, not the… [Previous page](https://forum.networklessons.com/c/routing-switching/mpls/15.md)