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

So it seems the way to go is to use a logical tunnel interface on MX. Just put one end of the lt Interface in the VPLS instance and the other end in the L2VPN instance: lt-1/2/0 { mtu 1514; ...
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6 votes
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Differences between MPLS and VPLS

MPLS is a virtual "layer 3" network. The customer addresses packets by IP. The PE equipment have customer IPs and serve as customer routers. The MPLS admin needs to manage at least a little of the ...
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  • 406
5 votes
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STP frames over VPLS/VPWS

Normally yes, VPLS and VPWS should be transparent to all L2 frames. BPDUs might not be supported by all providers, so you'd want to check the SLA. Alternatively, you should consider routing your ...
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  • 69.7k
5 votes
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Transporting an Ethernet Port in a LDP Based VPLS Instance on Juniper MX routers

Yes, LDP VPLS is a pretty standard deployment. Where it can get confusing is the various types of PE-CE interface encapsulation depending upon the type of service you're running. In your case of a ...
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  • 6,440
5 votes
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SONET/T-Carrier differences - MPLS/VPLS bandwidth

Very briefly, SONET/SDH is a high bandwidth optical WAN technology. T-carrier is an electrical (digital) WAN technology. SONET/SDH is (was) typically used for backbone and inter-provider circuits. ...
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  • 62.1k
4 votes
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Does Juniper set a control word on VPLS pseudowires

negotiation of the control-word between the BGP VPLS PE routers is added in Juniper MX series starting from Junos 14.1. so only BGP-signaled VPLS. BR
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4 votes

BGP VPLS - How the destination ip address is mapped?

A VPLS does not map IP addresses - it is a Layer 2 service. What you may be seeing in command output is MAC addresses mapped to the IPs of the specific remote PEs they were learnt from.
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4 votes
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LDP based VPLS between Cisco IOS XE and Juniper MX

No outgoing label indicates that Junos doesn't have a label for the loopback you are targeting on the Cisco (your x.x.x.x address) Confirm the following: Your NNI interface from the Juniper has ...
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3 votes
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Brocade L2VPN Route Reflector

I notice you have configured cluster-id 1. You should configure a unique cluster-id for each router in your topology, because you do not appear to have elected one or more centrally-located RRs. In ...
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  • 5,153
3 votes
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VPLS split-horizon behaviour

You are pretty right. In case if PE1 receives a broadcast from any other PE (say PE-2) which is a part of same VPLS domain (i..e LDP peer configured) , it doesn't replicate because this is the job ...
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  • 1,058
3 votes
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Extending a subnet across a WAN link vs routing

L2 bridging is not a good approach for a network extended over WAN. L2 protocols are ill-suited for bandwidth-limited and high-latency connections. Bridging a gigabit network over something like 10 ...
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  • 69.7k
3 votes

VPLS Multihoming on Junos - FEC confusion‏

Part of it comes down to what's supported, you might have PE's running older code that don't support FEC129. FEC128 multihoming was introduced in Junos 7.5 (see here). FEC129 multihoming was ...
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  • 6,440
3 votes
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LDP VPLS - Packet behavior within bridge-groups and bridge-domains

My background is mostly from the Junos side, but I think you are correct in your assumptions - your configuration is best served by multiple VPLS instances - particularly since there are multiple vfi ...
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2 votes
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Vlan Extension vs VPLS + need understanding

There are many ways to extend VLANs. Trunks are just one way. VPLS is another. The best method to use depends on several factors, most notably, the type of media that link the two locations, the ...
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  • 62.1k
2 votes
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Metro Ethernet no layer 3 connectivity

This turned out to be an issue with the provider-side equipment. They swapped our physical hand-off port at one end to another and things started working. They said it was due to a damaged physical ...
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  • 395
2 votes

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

This is correct: the pseudowire switching path does NOT do mac learning, so there's no way to populate that information. One possible workaround is to build a VFI that only has two ports. You will ...
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  • 555
2 votes

Juniper MX - vlan-ccc double tagged to untagged

You should be able to do something like: protocols { l2circuit { neighbor xxx.xxx.xxx.xxx { interface xe-0/0/3.1158 { virtual-circuit-id 1158; ...
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2 votes
Accepted

VPLS connection

R2 doesn't have a route to 11.11.11.0, so it doesn't know where to send the echo reply. Add a route with the next hop on 10.10.10.1.
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  • 62.1k
2 votes

Differences between MPLS and VPLS

As I understand it (having read a bit on this but not actually done it). MPLS is a protocol for building large numbers of virtual links over a shared infrastructure. The system of layered labels ...
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  • 11.6k
2 votes
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Junos[MX]: How to show VPLS instance associated with given subinterface

There is no direct way, but you can see interfaces in the statistics: user@router> show vpls statistics [..] Instance: EXAMPLE-VPLS-INSTANCE Local interface: ae2.2000, Index: 380 [..] Or in ...
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2 votes

VPLS how to signal CE facing interface failure

@Radovan. I'll try to answer this by assuming both PE-1 and PE-5 are Juniper Nodes. In Case of Juniper , you can use 'site-preference' knob under VPLS routing-instance. In your case CE is dual homed ...
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  • 1,058
2 votes

H-VPLS application with different types of VPLS

@Radovan. Refernece to your question "Is H-VPLS applicable for every type of VPLS network? (any other than LDP-based VPLS as in RFC 4762)" , I think H-VPLS was a fix to lessen extensive LDP peering ...
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  • 1,058
2 votes
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Pros and cons of using VPLS instead of using MPLS alone

You really can't compare the pros and cons. These are different (but related) technologies and they have been developed for a particular problem. You might as well ask what are the pros and cons of ...
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  • 62.1k
1 vote

PE route down in LDP based VPLS Connection in Juniper MX

The VC will go down if the interface (in your case ge-2/1/5 goes down), so run show interfaces ge-2/1/5 and confirm the Last Flapped: time against your log entries.
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1 vote

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

Try this command show vpls connections instance <instance-name> extensive to view the interfaces associated with the VPLS instance . Additional Info >> To check the MAC table , use the command ...
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  • 1,058
1 vote
Accepted

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

It turns out this can't be done simply because pseudowire data plane traffic doesn't interact with any control plane logic in that MACs for example, aren't learnt. Although I knew this, as pseudowires ...
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  • 5,270
1 vote

VPLS Multihoming on Junos - FEC confusion‏

I'm not sure that FEC128 is limited to just manual discovery of PWs. I've always used the FEC128 multi-home method described in the link with BGP auto-discovery and it works just fine - if I ...
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