Implementing MPLS on a simulator

I would like to know if there is a simulator on wich i can implement MPLS?
I need it for my final paper, since i graduate next year, and i am new in MPLS, and i need something for the practical part of my paper. Please contact me, even if u have suggestions for me, because i could use your help. Thank u.

Hi,
Generally you need to have tools like Agilent which will simulate the devices participating in MPLS .Just go through the white papers of Agilent.
Let me know if this really helps
Regards
Anand

Similar Messages

Implementing MPLS

I am cutting a frame-relay with ISDN backup Network over to MPLS with DSL Backup - I want to use OSPF on the MPLS and EIGRP over DSL; I have a mixture of routers 1750, 1751, & 1760. I have been doing my DD but was wondering if anyone here has done this and has any tips or a good place to some more research and or a good place to find a config builder?

You can try the ciso 1800,2800 or the 3800 series routers...depending upon your budget .You can be sure to get the best BANG!!! for your $$$$.

Implementing MPLS over VLAN trunk

We are investigation the options of running MPLS between our two core switches (C6509 with dual Sup720s) with the aim of introducing MPLS VPNs. These two core switches are linked via a Layer 2 trunk in a collapsed backbone topology.
Is it possible to create a point-to-point MPLS-enabled link between these switches on a VLAN interface between these switches, rather than an a dedicated physical port? It is anticipated that these two core switches will be PE routers (also acting as RRs, if required).

Its possible to run MPLS on any media with IP configurable for it. So till you have IP reachbility on a media, you can run MPLS.
As in your case you can very well run MPLS on an SVI reachable both sides over a trunk.
But as a after thought, why do you want to do this, although its possible, why do you want to carry other vlans on the same trunk which also carrier the internconnect vlan for the PE's.
HTH-Cheers,
Swaroop

Implementing MPLS into a Traditional ATM Network

Is it possible to enable MPLS in a LS1010 interface that already has PVC configured?

Hi,
I didn't use LS1010 before and don't know the answer of your question. But basically I can say that any ATM swith is NOT a MPLS enabled ATM switch. An ATM switch must run IP protocol to operate as an MPLS enabled ATM swicht. Pure ATM swicthes can't do it. On the cell mode operation ATM switch builds a control PVC (default 0/32) and over this PVC it creates LDP session to other equipment. So the software should also support this type of operation.
Regards

Having trouble implementing Captivate simulation in an iFrame

Hi all, hoping you can give me some pointers.
I'm trying to implement Captivate scalable html5 simulations in a proprietary LMS that requires that I place it in an iFrame. It works, but the scaling is not working properly. Immediately upon loading, the Captivate content is too large for my frame, although it does resize (still too large) when I scale the page.
Are there any known tweaks for this kind of issue?
Thanks in advance,
Jill

Not sure if you still need this, since it has been nearly a month.
But I just ran into this same issue.
Require using HTML5 with Captivate inside of an iFrame.
The "Scalable html" was ignoring the iframe's dimensions, and using the full window dimensions instead.
What I ended up doing is stop using the "scalable html" option when publishing from captivate. and then i used the following javascript inside the html that the iframe was placed:
    <script type="text/javascript">
        var iframeName = 'trainingVideo';
        this.FindZoomHeight = function () {
            var slideshow = $('#main_container', $('#' + iframeName).contents());
            var showHeight = $(slideshow).height();
            var frameHeight = $('#' + iframeName).height();
            if (frameHeight >= showHeight) { return 1; }
            return (frameHeight / showHeight);
        this.FindZoomWidth = function () {
            var slideshow = $('#main_container', $('#' + iframeName).contents());
            var showWidth = $(slideshow).width();
            var frameWidth = $('#' + iframeName).width();
            if (frameWidth >= showWidth) { return 1; }
            return (frameWidth / showWidth);
        this.SetZoomLevel = function () {
            var zh = FindZoomHeight();
            var zw = FindZoomWidth();
            var zoom = 1;
            if (zh < zw) {
                zoom = zh;
            } else {
                zoom = zw;
            var container = $('#main_container', $('#' + iframeName).contents());
            $('body', $('#' + iframeName).contents()).css('-moz-transform-origin', '0 0 0').css('-o-transform-origin', '0 0 0').css('-moz-transform', 'scale(' + zoom + ')').css('-o-transform', 'scale(' + zoom + ')');
            $(container).css('zoom', zoom);
        $(document).ready(function () {
            $(window).resize(function () {
                SetZoomLevel();
        $('#' + iframeName).load(function () {
            SetZoomLevel();
    </script>
This uses the css zoom property. (uses transform scale in firefox/opera..but captivate doesn't support those browsers anyways)

EIGRP Routing across MPLS Cloud

I appologize if this has been covered but I dont see any exact hits...
We are working with our Service Provider to implement MPLS between our remote sites and main campus. We are currently using PtoP T1 in a hub and spoke model. We are running EIGRP in our entire environment.
We would like to continue to run EIGRP in our environment but the SP does not support this protocol through the cloud. I would prefer not to introduce any new routing protocols into our environment such as BGP. (I believe SP is running BGP).
I have read snippits that I can us e GRE tunnel between sites and send EIGRP routing updates via this tunnel.
Can anyone support this method or are there better alternatives? If I implement GRE, I will still need to configure static routes so GRE knows how to reach the remote sites. I also cannot find any literature on how to configure GRE tunnels and use them ONLY for routing updates. I would think sending all traffic via GRE would cause additional overhead.
I will also have a need to send Multicast traffic between sites. I have read that GRE is the way to do this. To me it seems GRE will serve dual purposes.. first to allowing Dynamic routing updates between sites and also to allow Multicast traffic.
I appreciate any comments or suggestions!

Hello Phil,
using GRE tunnels to build an overlay would deny one of the greatest benefits of MPLS L3 VPN: the peer model where each CE talks only with local PE node.
unless you have a small number of sites this approach is not recommended.
What if a new site is added in the future? you would need to configure a tunnel GRE to the new site in each of the existing sites.
You could run a DMVPN ( that is to use mGRE) to solve this but it has some complexity.
You can run BGP without using mutual redistribution: BGP allows to advertise internal networks using the network command even if they are not directly connected to the CE router but learned via EIGRP.
So it is enough to redistribute only BGP into EIGRP by setting a default seed metric (it requires five values in EIGRP and it is necessary or redistribution will not occur)
router bgp 65001
neigh PE-address remote-as SP-AS-number
network 10.10.10.0 mask 255.255.255.0
network 10.10.20.0 mask 255.255.254.0
no auto-summary
! note:if auto-summary is disabled you need to provide the exact mask / prefix length
router eigrp 100
redistribute bgp 65001
default-metric 10000 1000 255 1 1500
! BW delay reliabilty load MTU
Hope to help
Giuseppe

MPLS for small network

In the past we have always had point to point links between our 3 remote offices and our corporate office. We're now switching to a MPLS network for all four sites.
We currently use Cisco 1721 routers for our WAN. What protocol should we use for routing across this new MPLS network? I'm also looking for a document what else I may need to configure for this MPLS design on the router itself.
We will have 1721 routers at all sites.

Hi,
for you as a customer the most appropriate picture is: The MPLS VPN behaves like one single IP router interconnecting your sites.
In your case just consider your 4 1721 being connected to one ISP router. There is no MPLS specific config needed on your 1721, MPLS is only within your ISP network.
This means: you send IP routing updates from one site to the "MPLS IP router simulator" and the updates will be sent further on to the other 3 1721. You forward an IP packet to the "MPLS IP router simulator" and it forwards it as IP packet to one of your other 3 1721.
If you are not dual homed or using backups then RIP would address all your needs. Also static routing might be suitable and the most simple aproach in your scenario.
Hope this helps! Please rate all posts.
Regards, Martin

Ping Packet Loss across MPLS TE Tunnels

Hello...Please Help,
I have a Single Area OPSF network running across 4 main routers via GigEth Ckts. The OSPF Network is working correctly. I recently implemented MPLS TE creating two Tunnels - One Explicit Path and One Dynamic Path. Two of the Routers also have a T1 Frame Relay Link over which the Explicit path is configured. It is up and woking but I am experiencing 50-60 percent packet loss when pinging between these PE routers. When I force it to the dynamic tunnel it follows the same FR path and experiences the same packet loss. There is no packet loss anywhere else in the network.
This is a Lab environment w/three LAN's Two 7206VXR & Two 3745 routers and Three 3550 Switches - one per LAN
Suggestions?

Thank You for your response. The problem may not be an MPLS TE problem.
But would my "path-option" and "priority" being set the same for the Dynamic and Explicit Tunnels cause one tunnel to come up and the other go down and cease to signal. Right now I have one or the other working when viewed w/the "show mpls traffic-eng tunnels" command. If I take one down the other works.
The IPs are 10.1.101.1 & 2/30 respectively for the FR Link. That was a Typo...I have corrected it.
The FR interfaces are not SubInt's as the Serial Interface holds the IP address. These are strictly Point to Point but I have the "IP OSPF Network Broadcast" command set and OSPF going across them.
I have SubInt's set on the Gi0/3 Interface.
Gi0/3.1 & 3.10 for VLAN's 1 & 10
There are not any drops when pinging from Within the routers "Interface to Interface".
But when I ping the LAN Node to Node or from within the Router "if" I do not specify an "interface source" I receive the drops.
The result is the same from either side of the Network on both of the 7206 Routers.
Thanks, Kevin

Control design and simulation module

Hi,
I am new to Labview and i am trying to work on Control System design. I have downloaded and installed the Evaluation Module of Control Design and Simulation Module. The problem I am facing witht this is its not showing any control fuctions in functions Palette. While installing it said its installing only control design and simulation assistant. Please, can anyone help with this.
I am actually looking at this module to implement Sliding mode control for non linear systems. I would like to know if there are any examples to implement this??
Thank You.

Hello
The problem is the following. The version of LabVIEW that you are using does not match the version of the evaluation version of LabVIEW Control Design and Simulation Module (CD&SIM). If that happens, the installer will not select the support files for your LabVIEW. If you download LabVIEW 2011, then you must install CD&SIM 2011.
Now, the module in the current version does not have an example with sliding mode control. But using this module, you can easily implement the algorithms and simulation its result using the Control and Simulation Loop.
Hope this helps.
Barp - Control and Simulation Group - LabVIEW R&D - National Instruments

Can mpls support multicast?

Hi,
Can mpls support multicast packets?
Meaning, can multicast packets be sent to destinations over mpls network?
If so, how does it work?
I read in this forum somewhere that someone mentioned mpls and multicast can co-eixt.
What exactly does it mean?
Thanx!

In the MPLS network you can either use native multicast or you could implement mVPN on the PE routers if you implement MPLS VPN. mVPN uses native multicast in the core to encapsulate the multicast messages coming from a CE router and to forward these messages to PEs containing the same VRF.
For more information on mVPN, see the following link:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftmltvpn.htm
Hope this helps,

IOS VERSION FOR MPLS

Hi! i'm trying to do a lab at my university implementing MPLS. I have routers cisco 2610 series. This is my configuration:
Cisco2600-2(config-if)# ip route-cache cef
Cisco2600-2(config-if)# mpls label protocol ldp
Cisco2600-2(config-if)#mpls ip
My problem is that i can't use te "set mpls experimental topmost " command at the policy-map. My options are:
Cisco2600-2(config-pmap-c)#?
QoS policy-map class configuration commands:
bandwidth Bandwidth
compression Activate Compression
drop Drop all packets
exit Exit from QoS class action configuration mode
no Negate or set default values of a command
police Police
priority Strict Scheduling Priority for this Class
queue-limit Queue Max Threshold for Tail Drop
random-detect Enable Random Early Detection as drop policy
service-policy Configure QoS Service Policy
shape Traffic Shaping
My version of the IOS is:
IOS (tm) C2600 Software (C2600-TELCO-M), Version 12.3(15b), RELEASE SOFTWARE (fc1)
wich version do i need to run this command and configurations?? Any information will help. Thank you very much. Best regards!!

It is my understanding that you don't have that capability in those images (or platform). I didn't find the feature in the feature set of the 2600 platform. The feature you are looking for is: "MPLS Quality of Service (QoS) Enhancements"
From the feature set definition:
- MPLS quality of service enhancements allow service providers to classify packets according to their type, input interface, and other factors by setting (marking) each packet within the MPLS experimental field without changing the IP precedence/DSCP field. For example, service providers can classify packets with or without considering the rate of the packets that PE1 receives. If the rate is a consideration, the service provider marks in-rate packets differently from out-of-rate packets.
HTH,
-W

Seeking help regarding selecting hardware and IOS for full feature MPLS net

Dear all
We are planing to implement MPLS in our network.Would you tell from which platform of cisco router support VPLS,VPWS and PSEUDOWIRES.
Regards
kamal

Hi Kamal
Below are some datasheets for the 7600,6500 and 3750-E products
6500
http://www.cisco.com/en/US/products/hw/switches/ps708/products_data_sheet09186a00800ff916.html
7600
http://www.cisco.com/en/US/products/hw/routers/ps368/products_qanda_item09186a008017a32b.shtml
3750-E
http://www.cisco.com/en/US/products/ps7077/products_data_sheet0900aecd805bbe67.html
You will also have to look at the modules and the supervisor engine you will need in the 6500 or the 7600
below is the link to OSM module datasheet
http://www.cisco.com/en/US/products/hw/modules/ps2831/products_data_sheet09186a008013155c.html
Supervisor engine 720
http://www.cisco.com/en/US/products/hw/switches/ps708/products_data_sheet09186a0080159856.html
Hope this helps, it did help me when we were starting up an MPLS network plus the metro part of it.
Please rate if its helps

Difrence between ... MPLS over Frame-Relay ATM

Hai all,
Sorry to ask very basic quiestion ..can some one tell what is the difrnce and advantage of MPLS over ATM and Frame-Relay ......pls provide me a better link ..for refrnce
Thanks in advance
Lijesh

MPLS over ATM or MPLS over Frame-Relay it's not good idea, because if you use cell-mode labeling, you find someone limitation at this technology. DLCI and VPI/VCI value at this protocols it's not have large space. If you know how operate cell-mode, try to look at just for sample bits length with DLCI value at Frame-Relay protocol or VPI/VCI value at ATM protocolâ¦ Of course you can use same cheat like VCI-merge, but I think it's not very good idea.
Building new network infrastructure at this protocols it's not good ideaâ¦ It's good idea to fast implement MPLS technology in old network infrastructure build with this protocols (just for sample, you can linked ATM forwarding plane and MPLS forwarding plane (in this situation you can abandon to use fixed configuration VPI/VCI for IP network and can use benefits offered ATM technology with MPLS)), but not for new network infrastructure. If you need to offer services with this protocols, you can use Any Transport Over MPLS technology.
For more information look at this page - http://www.cisco.com/en/US/tech/tk436/tk798/tsd_technology_support_protocol_home.html

MPLS configuration

Hi pros,
I need to implement mpls for the isp here.
They bought some cat 6500 switches and cat 4500 switches.
Pls give the initial setps to enable mpls
swami

Hello Swami,
this can be your reference
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/pfc3mpls.html
you need to use a classless routing protocol (OSPF or IS-IS to be preferred over EIGRP for possible MPLS TE future applications).
you need to advertise in the IGP the loopbacks addresses used to talk LDP over the MPLS enabled links.
MPLS needs to be enabled on all core facing links with
mpls ip
Take care of MTU issues: MPLS increase the size of frames and this needs to be handled on routers, multilayer switches and also on L2 only switches on the path.
for MPLS L3 VPN applications you will need also Multiprotocol BGP
Hope to help
Giuseppe

MTU Ethernet MPLS Network

Actually I have implemented MPLS in my Ethernet network using Cisco 75XX as part of my core (P) and Huawei equipments for access (PE). We realized that customers can not navigate to certain pages like hotmail, msn, hi5, etc. Reviewing possible solutions we found two options:
- Change the MTU 1492 in the CE equipment
- Adjust TCP MSS size to 1440 in CE.
Making this our customers finished complianing. Besides this all interface working under MPLS are using MPLS MTU 1508 command but Huawei PE?s dont support a similar command.
My question is what is the real effect of mpls mtu command? is it change the mtu size for predefined Ethernet??
Do you have any suggestion or similar cases, to make "transparent" for customes transition to MPLS network and not change values in CE equipment??
I really appreciate your answers and sugestions,
Best Regards
Jack

Hi Jack,
1) Why a Datagram is Fragmented:
When a frame is carrying an unlabeled IP datagram, the Frame
Payload is just the IP datagram itself. When a frame is
carrying a labeled IP datagram, the Frame Payload consists of
the label stack entries and the IP datagram.
Now when this frame payload as defined as above exceeds the
conventional layer 2 media MTU then the frame is fragmented.
In case of ethernet this MTU is 1500.
So for example when a unlabelled frame with payload of 1500
bytes is received and the same has to be sent further to
the remote destination by labelling it, then the payload
has to be fragmented.
2) Why the MPLS MTU command:
Once you receive an unlabelled frame, first the PE router
receives it, labels it and then its put out for forwarding,
when its to be forwarded, it needs to be fragmented.
The problem comes here, when before being forwarded out of
the interface if it gets fragmented, it would create two
fragments or frames.
By conventional fragmentation, the label which is inserted
in the header may not be preserved into the new fragments
created and the frame may be simply discarded as it loses
the forwarding address which was the label.
So to avoid this MPLS MTU command needs to be configured,
so when there is fragmentation, it takes care of putting
in the same label into the fragments created.
Now in IOS even is MPLS MTU command is not configured
it takes the default MTU as the MPLS MTU value.
3) Solution to your problem:
To aviod configuring the CE devices with MTU 1492,
what you need to take care of is configure all you
core facings links, with an physical MTU of 1508.
So automatically your TCP packets which if total
to 1500 bytes payload with a DF bit set wont need
to be fragmented from PE at one end to other end.
For this your PE <--->P link ethernet media MTU
should be 1508, (if you can configure 1512 or 1516
that would also be great if you plan to increase the
stack size or later provide IPV6 VPN's.)
You P<-->P links ethernet media MTU should also be
the same as set between PE to P. if you have any
SONET/POS links in your backbone then you dont have
to do anything for the MTU.
So the net effect of this would be any TCP sessions
as which are prone to setting the DF bit can be
transparently sent across without send ICMP error message.
HTH-Cheers!
Swaroop
You may also like to see the RFC 3032 about label stack.

Implementing MPLS on a simulator

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