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Questions tagged [vpls]

This tag is for questions regarding VPLS, the Virtual Private LAN Service, which allows ethernet-based point-to-multipoint Layer 2 VPNs to be implemented as a MPLS service.

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30 views

Loop-prevention measures on BGP-signalled VPLS

I have a project to configure a BGP-signalled VPLS overlay for an MPLS network. I will multihome the VPLS to a switching fabric via 2 PEs for redundancy. I understand that VPLS split-horizon behavior ...
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1answer
61 views

PE route down in LDP based VPLS Connection in Juniper MX

I am observing 'PE route down message ' against LDP based VPLS connection on Juniper MX. The IGP protocol is IS-IS. LDP VPLS connectivity is point to point (having only two end points). When I check ...
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1answer
47 views

VPLS how to signal CE facing interface failure

Hello, I have a BGP-based VPLS setup with one CE machine being multi-homed multi-homing works if i for example shut the active PE or i somehow disturb the connection between my PEs... that ok but ...
2
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1answer
40 views

H-VPLS application with different types of VPLS

so ive been digging around VPLS for a while and i have come across a term H-VPLS. My knowledge is: VPLS can be signalled using LDP (manual or autodiscovery) or BGP (autodiscovery). H-VPLS: ...
3
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1answer
260 views

VPLS split-horizon behaviour

I am trying a LDP based VPLS topology And I am just figuring out how split-horizon works in this scenario. So my uPE has a primary xconnect to PE1 and backup to PE2 (only one at a time is active, ...
2
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2answers
76 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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0answers
142 views

mLACP / MC-LAG between Cisco / Juniper

I am working on a LDP signalled VPLS topology (picture) What I am trying to accomplish here is to establish a redundant connection to CE1. CE1 has both interfaces in a port-channel with an IP. My ...
4
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1answer
78 views

Extending a subnet across a WAN link vs routing

probably a noob question but any help is appreciated. Question: What are the disadvantages of spanning L2 subnets across a WAN as opposed to a routed connection? Background: I've got a client who's ...
2
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0answers
214 views

add VLAN access ports to a VSI (HP)

I'm trying to understand how VLANs work in conjunction with VSI / VPLS. I'm using two HP A5800AF switches connected through MPLS. Specifically, I want to associate a port on each side with a specific ...
1
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1answer
238 views

SONET/T-Carrier differences - MPLS/VPLS bandwidth

Could someone explain to me simply what is the difference between SONET and T-Carrier? I know that the ISP generally uses SONET on their infrastructure (Ciscopress 2017, 1.2.1.2 section, http://www....
2
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1answer
933 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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0answers
204 views

Vlan translation and Swapping

Heey, all As an ISP provider, We are trying to connect Multiple customer sites via our Mpls core. our plan to give each customer site a different vlan ( c-vlan) and then translated to S-vlan to ...
2
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0answers
277 views

Cannot Ping endpoints across a VPLS connected VLAN [closed]

Created a new VPLS Service first manually and then when it did not work reattempted with our Alcatel SAM 5620 to get a VLAN to pass end to end. Both configs look the same, neither the command line ...
1
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1answer
747 views

LDP based VPLS between Cisco IOS XE and Juniper MX

im struggeling in setting up LDP based VPLS in a Cisco/Juniper mixed vendor environment. The configuration is currently running between two Cisco Boxes, but i have to migrate on side to Juniper. ...
1
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0answers
219 views

OSPF question from ISP perspective

Was hoping for some advice regarding an OSPF solution for a customer. Basically the customer has about 4 sites. These would all be linked together physically. I have attached a basic network ...
1
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1answer
52 views

VPLS connection

My Network is as follows. 11.11.11.1 (connected interface g0/1)--(CE IP= 10.10.10.1)R1 == VPLS_Cloud == R2 (CE ip=10.10.10.2) I can ping from router (ping 10.10.10.2 works) ping 10.10.10.2 source ...
6
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3answers
31k views

Differences between MPLS and VPLS

Can someone explain to me what differences there are between MPLS and VPLS? Which one is the most efficient? Why? I’ve read that the only difference is layer of technology: 2 (VPLS) vs 3 (MPLS). Does ...
1
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1answer
1k views

Vlan Extension vs VPLS + need understanding

I have tried to find the answer online and I was trying to make sure my understanding is correct. So if someone can point me to the correct path please do. My understanding of vlan extension are ...
1
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0answers
146 views

VPLS interface on router switched to other interface on same router

I have a router, R1, that is serving as a default gateway on a network segment. Let's say port eth0 has an ip of 10.0.0.1/24 and is connected to a switch, S1. Another port on the router, eth1, is ...
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0answers
239 views

How to configure vlan mapping with VPLS on Cisco 6500 routers?

I'm using VPLS to extend vlan x from site1 (Cisco C6500) to two remotes sites (Cisco C6500) site2 and site3 over MPLS. The issue I'm facing is that a vlan with the same number already exists in the ...
2
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1answer
268 views

Metro Ethernet no layer 3 connectivity

We're working with a metro ethernet provider to bring up a new multi-point connection between our sites. Currently we're just trying to get it working with two sites. As a simple test I've plugged in ...
5
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1answer
598 views

LDP VPLS - Packet behavior within bridge-groups and bridge-domains

I have a pair of ASR9k's that I plan on migrating to Juniper MX960's. Below is a piece of the configuration: l2vpn bridge group VPLS_1 bridge-domain 101 interface TenGigE0/2/0/0.101 ! ...
0
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2answers
146 views

BGP VPLS - How the destination ip address is mapped?

From RFC and tutorials in the internet I understand that the MPLS cloud acts as a switch and switches traffic between end points in a VPLS. And that VPLS ID along with RD is used to reach the VPLs ...
6
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2answers
3k views

Cisco IOS: How to view MAC addresses on an Ethernet pseudowire

With two Cisco ME3600 (or similar MPLS & VPLS capable devices) running recent code [15.3(3)S], is it possible to show the MAC addresses passing over a standard MPLS encapsulated xconnect? In the ...
6
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1answer
998 views

Is it possible to stitch a L2VPN connection into a VPLS domain on Juniper MX

I'm trying to connect one end of a L2VPN tunnel to a VPLS instance on a Juniper MX router. The L2VPN should act like a local interface in the VPLS instance. Is this possible at all? I can't find any ...
8
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3answers
12k views

What is the difference between VPLS vs Layer 2 VPN?

Apologies about the very open ended question, but I am struggling to differentiate between VPLS & L2 VPN's. I'm aware they both run over MPLS, but I can't find any documentation or sites that ...
13
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2answers
1k views

VPLS Multihoming on Junos - FEC confusion‏

I'm going over the VPLS multihoming options on Juniper's web site. I'm not concerned with LAG and MC-LAG for the moment. As far as I'm aware: FEC128 is when you are using manual discovery of ...
6
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1answer
680 views

Suitability of Catalyst 6500/6800 with SUP2T as a provider PE device

I'm looking for a device to use as PE in a provider network. It should have the following features: MPLS VPLS Q-in-Q BGP Reasonable buffers IGP (OSPF/ISIS) VLAN rewriting The ...
14
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3answers
4k views

BGP signalled MPLS issues

I am having an issue getting a VPLS up using an ME3600x with 15.3(2) and BGP signalling. @yelfathi and @packettalk have pointed me down the correct route but not sure how to resolve it. I have 2 ...
8
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4answers
3k views

How to signal a VPLS multihoming change to a L2 CE device

We have the following setup: Two MX routers connect to the same L2 site. Loop protection / redundancy is done via VPLS multihoming. On the other end are two switches (EX4200 for example). When the ...
8
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2answers
1k views

Does Juniper set a control word on VPLS pseudowires

At the RIPE conference the was a talk about how MAC addresses starting with a 4or 6 may suffer from decreased performance because MPLS routers misinterpret the Ethernet packets as an IPv4/6 packet ...