Questions tagged [mpls]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
1answer
88 views

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?
0
votes
0answers
141 views

Basic static MPLS configuration for Cisco 3725 in GNS3

I need to forward an MPLS packet from router 1 to router 2 (as shown in Scenario pciture below). The summary of connections is: Cloud-1 <--> R1 <--> R2 <--> Cloud-2 . I have tried basic ...
1
vote
1answer
328 views

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) ...
0
votes
1answer
98 views

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 ...
1
vote
1answer
333 views

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. ...
1
vote
0answers
39 views

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 ...
1
vote
2answers
827 views

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 ...
1
vote
1answer
2k views

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 ...
0
votes
1answer
194 views

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 ...
0
votes
1answer
69 views

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 ...
-1
votes
1answer
152 views

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 ...
1
vote
1answer
932 views

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 ...
1
vote
0answers
143 views

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 ...
0
votes
0answers
659 views

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 ...
1
vote
0answers
1k views

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 ...
0
votes
2answers
389 views

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 ...
1
vote
1answer
449 views

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
votes
0answers
1k views

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 ...
2
votes
0answers
293 views

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 ...
15
votes
2answers
817 views

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 ...
0
votes
1answer
201 views

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? ...
0
votes
2answers
917 views

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. ...
1
vote
1answer
2k views

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: ...
2
votes
2answers
858 views

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 ...
2
votes
3answers
4k views

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 ...
3
votes
1answer
115 views

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 ...
2
votes
2answers
1k views

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 ...
-1
votes
1answer
42 views

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?
1
vote
0answers
245 views

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 ...
0
votes
1answer
92 views

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 ...
0
votes
1answer
691 views

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 ...
2
votes
0answers
5k views

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 ...
0
votes
1answer
181 views

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 ...
2
votes
1answer
20k views

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 ...
4
votes
1answer
1k views

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/...
1
vote
1answer
394 views

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 ->...
1
vote
1answer
4k views

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-...
1
vote
1answer
851 views

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 | ...
2
votes
2answers
1k views

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?
5
votes
3answers
5k views

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.
2
votes
1answer
330 views

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. ...
0
votes
1answer
135 views

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 ...
0
votes
2answers
12k views

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 ...
1
vote
2answers
153 views

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 ...
2
votes
1answer
1k views

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 ...
1
vote
1answer
194 views

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 ...
2
votes
2answers
1k views

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.
1
vote
1answer
257 views

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 ...
3
votes
3answers
1k views

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 ...
1
vote
3answers
7k views

Slow Performance with MPLS

Background: My company is switching to an MPLS provider. The MPLS provider is providing both internet and MPLS. This is done with one ethernet drop by using two dot1q sub interfaces, one for the ...