This tag is 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
6
votes
3answers
75 views
Cisco 2901 - Determine if bundled T1s are up based on bandwidth?
I have a Cisco 2901 at a remote branch office connected via ge0/1 to an Adtran that is managed by TW Telecom with 8 T1s bundled together for an MPLS circuit.
I don't have access to the Adtran gear, ...
8
votes
3answers
122 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
votes
4answers
128 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 ...
11
votes
3answers
454 views
Are there any reasons to not use BFD?
In looking to implement Bidirectional Forwarding Detection (BFD) it seems to be very flexible in terms of timer tuning, light weight regarding any overhead and it's flexibility in terms of overall ...
7
votes
2answers
146 views
Why does my Cisco 6509 BGP table use two entries in my TCAM?
I have a problem on my Cisco 6509, each entry in my BGP table occupies two entries in the TCAM.
If I show capacity forwarding, I see MPLS entries in L3 forwarding resources.
But, I do not use MPLS on ...
5
votes
1answer
123 views
How to force VPLS/L2VPN to use a specific path
We're using VPLS and L2VPN on Juniper MX for L2 connections. Signaling is done via BGP and label distribution via LDP.
Now we want one L2VPN to use a specific path trough the network and not follow ...
4
votes
1answer
80 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 ...
3
votes
2answers
58 views
Extending MPLS in to vSwitches
When your core network is MPLS based, how do you connect virtual servers behind vSwitches in to this? For example VMWare vDS or Cisco Nexus 1000v.
4
votes
1answer
53 views
Migrating from VLANs to MPLS on JunOS
I'd like to see a worked example of recreating a regular common VLAN based topology using MPLS on Juniper hardware. In particular we will be using EX3xxx and EX4xxx for swicthing, though I don't think ...
13
votes
1answer
95 views
MPLS auto-bandwidth balancing
I operate an MPLS/IP network that utilizes auto-bandwidth to measure bandwidth utilization and signal RSVP accordingly.
How can I maintain balance across my LSP paths such that one large [P ...
