Questions tagged [mpls]
The mpls tag has no usage guidance.
56 questions
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About MPLS label range
In most routers or switches that support MPLS, if transit label and uhp LSP label need to have a different label range? when protocol(LDP or BGP) assign labels, I know that VPN label and LSP tunnel ...
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How to use MPLS VPN connection between branch offices, to connect LAN hosts that exist at different office branches?
Our ISP has provided us with a MPLS VPN connection to enable us communicate our other 3 branch offices with our head office. They provided us with WAN addresses for each dedicated router at our ...
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Route-Distinguisher (RD) to import and export the prefixes?
Why can't we use Route Distinguisher(RD) as a tag to import and export the prefixes/routes. It is also a unique value per customer, why use the second parameter?
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Problems with RD, RT import and RT export in MPLS VPN and BGP
I'm learning MPLS VPN with MP-BGP and I'm finding difficulties with undertstanding the RD value and the RT import and export values.
From what I've already understand, RD (route distinguisher) ...
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GCP network setup
I am currently looking at GCP to use as an addition within our existing infrastructure. I am looking at trying to set up a vrf so I can keep this traffic isolated from my current setup, I can't find ...
google-cloud-platform
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808
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Using openvswitch with mpls and tcp
I'm doing R&D in SDN. In this case scenario, we use MPLS labeling, and Open vSwitch as software-switches. We are using 2 server nodes with ovs 2.6.0, with kernel modules loaded, and 2 hosts.
...
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How to allow workstations to use static routes from windows server
I have an MPLS network with 5 connected offices.
All of the workstations can login to the domain controller at the main office. The DC at the main office can see all of the workstations at all of the ...
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Slow file transfer in one direction over MPLS
We are having an issue with file transfers over our MPLS.
Our setup:
Home Office <====== MPLS ======> Datacenter
VM Cluster VM Cluster
Windows 2008 ...
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2
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Can't manage / ping Sonicwall's LAN interface from across MPLS
We have two of our sites connected via an MPLS that bypasses our firewall. Traffic between the sites, when hitting our core switch is routed directly to a second interface on our ISP's router.
The ...
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394
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RSTP over tunnel?
tl;dr: Is it possible to run RSTP over l2tp or MPLS?
We have leased one gig capacity from a service provider's network, over which we sent a udp multicast traffic. The provider gives us drop at our ...
- 213
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What is the best way to divert an IP address between two remote locations?
I would like to ask the community thoughts on the following.
I have two data centers, one up 'Norf, and one down South
Both are isolated in terms of network, but both have public IPs on a dedicated ...
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205
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Notation used in Router configuration diagrams
I was listening to an MPLS tutorial on youtube.MPLS tutorial
I came across this diagram.
I am not that familiar with router configuration.My questions are as follows.
1) what does G1/0, G2/0, G3/0 ...
- 313
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Connecting MPLS Link to Local Network
First off, I'm a vlan-virgin.
We have two offices (OfficeA & OfficeB) and we have two core switches (Cisco 45XXs) in each office (OfficeA-CSW & OfficeB-CSW). In OfficeB we also have a ...
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Flat ISP network to MPLS dumb Q
I have a fairly flat ISP network that I am upgrading to use MPLS (dont ask why, that decision is above my position) but clients/CPE are authenticated using PPPoE. Each POP uses a router configured as ...
- 181
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Layer 3 switch redundancy solution (with vlan's, stp)
So basicly I have a setup which I want to get to work but i'm unable to.
It's possible I am overseeing a lot of things but let's get to it anyways.
The current situation is a network with 4 switches ...
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Routing Issue - can't ping gateway from other routers in full mesh
I am setting up a new network. I have 4 routers in a full mesh. Edge1, Edge2, Client1, Client2.
This are Mikrotik Cloud Core Routers (not that it matters). They are set up with OSPF (distributing ...
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Organizational Access To Google Apps From China
I was tasked in deploying Google Apps for business and I have multiple offices in China which has to be on it.
Anyone knows how can I bypass china's deep packet inspection?
Given my company's ...
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578
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How to use same MPLS Traffic Engineering tunnel for ipv4 and ipv6
I have MPLS TE configured and working, but it is currently using IPV4 and I needed to include IPV6.
My current tunnel configuration is the following:
interface Tunnel1
ip unnumbered Loopback0
ipv6 ...
4
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2k
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TCP Window Scaling Problem over MPLS
After extensive troubleshooting why the TCP speed over an MPLS circuit is slow in one direction, I figured out that by adjusting the TCP window size the situation improved a lot. Maybe you can tell me ...
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Non-local IP for next hop in routing
I'm working with an MPLS network and I am slightly confused about some route entries.
Interfaces are (these are fake IPs):
eth0 10.10.10.1/24 (LAN)
eth1 10.9.9.1/24 (MPLS)
eht2 2.2.2.2/24 ...
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921
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How can I gain better insight into ISP-managed equipment (routers)?
I have a number of customers who have networking equipment managed by their ISP. This is usually in the form of an ISP-provided switch or router placed at the customer location(s).
For sites that ...
- 200k
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217
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Can Windows Populate Network List in an MPLS?
With an MPLS of one host and one remote, when I go to Windows Explorer and bring up "Network", is the list supposed to be populated with the devices on both subnets?
If not, can it be made to do so?
...
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File-Sharing and TCP does not work over MPLS
We have established an MPLS between two locations. The DHCP helper is installed on the remote's router and we can ping devices from/to either subnet. DHCP is working properly in both locations.
...
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How to configure linux DHCP servier for MPLS?
We are set up with a two-branch MPLS with a DCHP Helper on the Remote subnet. The DHCP service is running on a CentOS box.
So I have two subnets:
HostRange: 192.168.0.1 - 192.168.1.254
RemoteRange: ...
- 726
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How to get a report of all mac addresses on another subnet?
We have an MPLS consisting of two branches: Location1 and Location2.
I am using the Softperfect netscan to report all ip addresses and mac addresses of devices on Location1 where my workstation is ...
- 726
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Can I run a single DHCP Server for all branches of an MPLS?
We have a two-location MPLS. I am told by the ISP that I can have a single DHCP server to service both branches.
But I don't understand this.
Consider this:
Location1 (Host branch with the DHCP ...
- 726
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130
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MPLS: choice of initial label for an incoming packet
At the entry of a MPLS tunnel, which packet fields are used to determine the label of an incoming packet?
Here it says that there are other attributes that are taken into account besides the IP ...
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1k
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Internal Site to Site VPN over MPLS speed issues?
How do I troubleshoot slow performance of a site to site VPN tunnel over a MPLS circuit? What are the relevant reports/stats I should be looking at?
Background:
I support one end of a Site to Site ...
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How is the port a part of a packet? [closed]
Computer A is running a program that initiates a request to Computer B on Port X. Where / how is the port transmitted in the API request?
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MPLS label prefixes
This might sound crazy and unholy but is it possible to have MPLS prefixes like IP prefixes. MPLS label like an IP address is just a number (20 vs 32bits). There is no reason we can't have a MPLS ...
- 523
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Strange Network issue
No Internet access for all workstations
Internet working for some servers, eg. DC
MPLS network > Switch > workstation
MPLS network > Switch > server
Workstation troubleshooting
- tracert google ...
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enabling MPLS,RSVP and OSPF-TE
I am using Juniper J-series routers to emulate a small telco and VPN customer.I need to use OSPF so that the routing information can be propagated to all P and PE nodes (basically all core and edge ...
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External AD Trust randomly fails
We have a one way external trust between two domains. The trust was configured and validated both ways everything worked fine. Randomly the trust will stop functioning. If we reboot one of the ...
- 1,540
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MPLS: INBOUND vs OUTBOUND Labels
In The MPLS LSR if I have 4 INPUT ports with 4 labels
label:port
11 : 1
22 : 2
33 : 3
44 : 4
and ONE output port
How many labels can exit through the output port/interface? or do they get ...
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What is MPLS Layer 2 VPN and how is it different from MPLS layer 3 VPN?
There is quite an amount of buzz in the telecommunications industry about MPLS. I am able to understand how an MPLS works over an IP network (MPLS L3). But, what is an MPLS layer 2 network and how is ...
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Understanding Ethernet Headers, What MTU Do I Need?
I see many articles on line stating that the overhead of Ethernet is 18 bytes (example: http://www.learnios.com/viewtopic.php?f=8&t=18887)
Looking at this wiki article (http://en.wikipedia.org/...
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same label along MPLS label switched path, is it possible?
I am a true beginner as far as MPLS is concerned and I was wondering if this would be possible; To be more specific assume a LSP (Label Switched Path) from
Host A -> Router 1-> Router 2 ->...
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5k
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Route IP from one vlan to another vlan in the same vrf of the same router
Can you route a IP (/32) from one vlan to another vlan in the same vrf of the same router ?
Exemple:
example_router#show version
Cisco IOS Software, c7600s72033_rp Software (c7600s72033_rp-...
- 161
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Unequal Cost Load Balancing via MPLS TE
Given the following network, with all sites' network routing tables built via OSPF:
Site_A
|
Site_A_router
| \
| Intermediate_site_C_router -- Other_sites
| ...
- 310
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What routing protocol to use with MPLS?
My MPLS provider is giving us a choice to use static routes or BGP for our new MPLS setup.
What are advantages/disadvantages of the 2 choices? What is more commonly used?
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Terminating MPLS vpn on Linux
Is it possible to terminate MPLS vpn connection on Linux and how? On my side Linux box has fiber ethernet interface and has fiber plugged in. We do not have any other router etc.
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Configuring Cisco Router 2851 to handle MPLS traffic tunnelling
Some guy configured a Cat 6500 Core Switch on my net to handle MPLS traffic (and it works). The MPLS line is also directly connected to the internet, so our edges and firewalls are bypassed actually. ...
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Does inter-dependence on Optic Fibre WAN connection for MPLS VPN exists?
I have a netgear FVX538 firwall/gateway, 20mbps optic fibre link connected to WAN1, no connection on WAN2 and a link which I suppose to be a 2mbps MPLS line into a Cisco 1841 and in turn connected to ...
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Do MPLS service providers peer with each other over an NNI?
Do MPLS service providers peer with each other over an NNI?
Probably this doesn't make much sense for IPVPNs because it would imply that the service providers would have to share the customers ...
- 11
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Public addressing inside MPLS
Question on MPLS connectivity to a new Cloud Voice Offering:
My cloud service is deployed in a service provider data center, and I can obtain an MPLS connection from them, as well as a direct ...
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Site of origin with MPLS
I'm learning about MPLS. I have two sites in my scenario using eBGP for PE-CE communication, and both using the same ASN (deliberately as I want to know about SOO) and I cannot advertise a route from ...
- 61
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Providing internet access to users in an Enterprise (MPLS ) Network
Scenario
I'm planning to setup a typical Head Office - Branch Office(s) Network Setup.
there will be 25 branch offices in India of two will be overseas (one in US and the other in UK). All these ...
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1k
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why ATM and MPLS are at level 2.5
i don't understand why ATM and MPLS are not well classified in networking levels stack iso/osi.
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Choosing protocol/method of connecting branch offices or datacentres
I have experience of openvpn, ciscos ipsec tunnels and alike but I wonder in what situation one would benefit from using a MPLS instead? If I understand it correctly, MPLS is L2 (but is sometimes ...
- 4,360
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Public IPs on MPLS Traceroute
When running a traceroute, should I see any public IP addresses when tracing route from one MPLS point to another MPLS point? So when I do a traceroute from 10.0.0.1 to 10.0.1.1, I see some public IP ...
- 85.1k