6
votes
Accepted
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 ...
- 406
5
votes
Accepted
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 ...
- 82.6k
5
votes
Accepted
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 ...
- 7,044
5
votes
Accepted
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. ...
- 67.1k
4
votes
Accepted
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 ...
- 9,421
3
votes
Accepted
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 ...
- 1,110
3
votes
Accepted
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 ...
- 5,449
3
votes
Accepted
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 ...
- 82.6k
2
votes
Accepted
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 ...
- 8,117
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;
...
- 9,421
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.
- 67.1k
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 ...
- 13.1k
2
votes
Accepted
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 ...
- 67.1k
2
votes
Accepted
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 ...
- 395
2
votes
Accepted
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 ...
- 67.1k
2
votes
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.
- 9,421
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 ...
- 1,110
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 ...
- 1,110
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 ...
- 1,110
Only top scored, non community-wiki answers of a minimum length are eligible