Questions tagged [mpls]
For questions about Multi-Protocol Label Switching (MPLS), the layer 2.5 protocol used as a transport layer for Traffic Engineering, some Layer 2 & 3 VPN's, and VPLS.
192 questions
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Help me interpret a traceroute with MPLS tunnels? [closed]
I measured this traceroute from a looking glass server in London, to a destination in South Africa.
Tracing the route to 41.204.215.201
VRF info: (vrf in name/id, vrf out name/id)
1 ae-2-21.er-01-...
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MPLS L3 VPN, issue with customers pinging
I created the MPLS L3 VPN architecture(screenshot in the link at the end of the post) using ARISTA vEOS images, then I got a problem with network reachability between the CE client routers. please ...
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VPLS without route target and VPLS ID
lately I have been checking out some old IOS-XE PEs in the environment that are peering with each other directly before route reflectors were introduced.
they are using BGP autodiscovery and signaling....
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Why does `show rsvp neighbor` show every neighbour twice?
When I configure MPLS and RSVP on various Juniper devices, label-switched paths are successfully setup and seem to generally work, but the output of show rsvp neighbor always show each neighborship ...
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L2 Circuit ober BGP Signaled MPLS
We are providing MPLS Network services to Customers via Ethernet Links. Our CPEs (mainly Cisco) are linked via VLAN Subinterfaces to the PEs (Juniper MX). Due to the increasing demand of Multiple ...
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mpls load balancing in the core
Hi I am working with this topology:
The BNG router receives from the 2 NCS5508 (P routers) l2vpn traffic that terminates in l3 on a PWHE interface. Those interfaces are used as subscriber interfaces ...
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Do Forwarding Table (FIB not LFIB) have MPLS label?
In my opinion, FIB doesn't have MPLS label, FIB should be populate from RIB because of CEF.
However, after I seach online and find out that some tutorial stated that FIB also contains the label just ...
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Recognizing the next protocol in MPLS header
How can I know what is the next protocol in MPLS header?
I do know that MPLS header does not provide any information about the next protocol,
But I somehow need to know how to recognize it, as I am ...
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QinQ does not work with L2VPN (VSI and MPLS L2VC - Switch Huawei)
Currently, I am trying to configure a network to transport multiple VLANs for a client who has points in different locations (Side A and Side B). My idea was to use QinQ for this. The network topology ...
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In what situations is MPLS label erased from the top of the label stack in MPLS?
What are other processes that MPLS/IP routers can do with, or to MPLS label stack?
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How can GMPLS unify signalization plain of all telecommunications network technologies?
In what way can GMPLS do that unification of signalization of network technologies, by hardware, like MPLS switches, or by network protocols? And what is the role of optical networks in GMPLS? Are ...
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Why is MPLS label added between layer 2 header and layer 3 header of OSI model and not between headers of layer 3 and 4 of OSI model?
Is there a possibility to use any other two OSI model layers' middle positions? What is the basic concept of switching of packets with MPLS on layer 2.5 of OSI Reference model?
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Why does MPLS use labels to make forwarding decisions instead of destination IP addresses?
I am learning about MPLS at the moment. I know that routers in general make forwarding decisions based on the destination IP addresses and available routes in the routing table.
However, with MPLS it'...
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Layer 2 MPLS VPN versus Layer 3 MPLS VPN
A networking course that I follow briefly mentions Layer 2 and Layer 3 MPLS. I understand the difference between them.
However, the question is, are L2/L3 MPLS like two different services that we can ...
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Leased Lines vs MPLS
I am studying about WANs and there's been a mention of several WAN options/technologies.
I know that Leased Lines are dedicated connections that are not shared by other customers while MPLS is a ...
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