Voip deployment over mpls link

Hi
we want to deploy voip for multiple location over the mpls lines we have between the multiple location can any body suggest the feasibility and how to do it and any related document and guidance for that
Thanks
Manish gaur

Manish,
That is probably the best way to connect multiple sites without having to connect each one with a T1, etc. Our MPLS vendor has an SLA on latency with 50ms or less guaranteed. With voice you want to make sure the latency is definitely less than 150ms. For ease of management we're using a router at each remote site with SRST capabilities so that all of the configuration remains at the main HQ callmanager, but if the connection ever goes down, the remote site phones will still be able to call each other (not main office until connection is restored) Alternatively you can put a router at each site with CallManager Express, you will just have to manage each site separately. Hope that helps a little.

Similar Messages

  • VOIP configuration over mpls link

    Hi
    we want to deploy voip for multiple location over the mpls lines we have between the multiple location can any body suggest the feasibility and how to do it and any related document and guidance for that
    Thanks
    Manish gaur

    Hi,
    what do you call a "mpls link"? Do you have an IP interface connecting to a MPLS network implemented by a provider or do you operate a MPLS network yourself?
    In any case you might have a look at
    1) Enterprise QoS Solution Reference Network Design Guide Version 3.3
    http://www.cisco.com/application/pdf/en/us/guest/netsol/ns432/c649/ccmigration_09186a008049b062.pdf
    2) Layer 3 MPLS VPN Enterprise Consumer Guide Version 2
    http://www.cisco.com/application/pdf/en/us/guest/netsol/ns171/c649/ccmigration_09186a008077b19b.pdf
    3) Various design guides for Unified communications
    http://www.cisco.com/en/US/netsol/ns656/networking_solutions_design_guidances_list.html#anchor10
    Hope this helps!
    Regards, Martin

  • VoIP, Video Polycom over MPLS

    Hi
    Any one using Vidoe polycom and VoIP over MPLS? We have around 5 offices and they want to use Video Polycom over MPLS. If someone can provide Pro and Con for that and any document or link much appreciate it. Thanks in advance.
    Sai

    i havnt done polycom over mpls
    but i would like to give u hints to consider it
    the first think u need to know from the ISP what COS they put in as priorty and how many COS they provide u based on SLA and how match max traffic then they start to drop traffic
    the other think is to know how the polycom mark the traffic and u need to calssifiy it and put it in proper calss based on the classes provided by the mpls ISP
    good luck
    and hope this helpful

  • Port Channel over L2 MPLS links

    Hello.
    I was hoping that someone could over some suggestions on best practice or recommendations for configuring port channel to bundle to layer 2 MPLS links that we have.
    We have racks in two geographically separated data centres, each rack has a stack of Cisco 3850 switches, and there are two 100Mbps layer 2 connections linking these stacks together.  The links are provided by our supplier and runs over their core network (I can get more info on their setup if need be).
    I had initially just configured a simple port channel bundling the two ports on "Switch A", and the same on "Switch B".  However I have since noticed that one of the ports was put into error disabled state, and I have my doubts that we ever had 200Mbps throughput over the portchannel.
    The logs showed:
    UDLD-4-UDLD_PORT_DISABLED: UDLD disabled interface Gix/x/x, aggressive mode failure detected
    %PM-4-ERR_DISABLE: udld error detected on Gix/x/x, putting Gix/x/x in err-disable state
    How I understand is that one of ports recieved an unexpected (or incorrect) BPDU packet, and shut the port down as part of spanning tree process to stop a loop forming.
    For the time being I have removed the port channel config and re-opened all the ports, so I believe one of the ports is now in blocking state.
    Whilst redundancy for these links is great, ideally I would like to have the links bundled so I also get the benefit of higher throughput.
    Any thoughts are greatly appreciated.
    Thank you

    Hi,
    Thank you for your reply and suggestions.  I have been reading up on layer 2 protocol tunnelling and I'm not sure if this will work for us.  According to these guidelines for the catalyst 3550 (http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3550/software/release/12-1_19_ea1/configuration/guide/3550scg/swtunnel.html#wp1006657) it states:
    •If you enable PAgP or LACP tunneling, we recommend that you also enable UDLD on the interface for faster link-failure detection.
    •Tunneling is not supported on trunk ports. If you enter the l2protocol-tunnel interface configuration command on a trunk port, the command is accepted, but Layer 2 tunneling does not take affect unless you change the port to a tunnel port or an access port.
    •EtherChannel port groups are compatible with tunnel ports when the 802.1Q configuration is consistent within an EtherChannel port group.
    (maybe its a different and is supported on 3850's)
    Also, I cant use layer 3 over this link as I am looking to extend VLANs over the link so devices and virtual machines in each of the datacentre are in the same subnet and broadcast domain.
    I will speak with the supplier to see what they are willing to do.
    Thanks again.

  • Cross connected calls over MPLS WAN

    Hi,
    I have an issue with one of my offices that has me extremely puzzled.
    When users call users in other offices, sometimes the calls get cross-connected, where they are suddenly talking to another caller.
    Our telephony provider is insisting it is my network, but I have this office router and switches configured the same as our other 5 offices that don't have this issue.
    They are now trying to say it is an MPLS issue from our Telco, but I figure I would be seeing issues with data going over that link as well.
    Has anyone ever experience this "crosstalk" before?
    The routers at the offices are 2811/2851, with 10meg MPLS WAN between, and 3560/3750 PoE switches for the phones.
    Any advice or tips would be greatly appreciated!

    The 2851 at our head office is running 12.3(8)T8.
    The 2821 at the remote office is running 12.3(8)T8 as well.
    We are not using CCM, we are using a Mitel VoIP solution (which I hate and wanted to go with Cisco instead!), which is using Minet (shows as RTP traffic).

  • Reroute some vrf traffic between 2 sites over redundant link

    hey guys,
    We have a single client (in vrf) with 2 sites in different states and running over our mpls core.. Our primary link in our core is experiencing degredation of service and want to route this client over our redundant link while keeping all other clients going over our primary link - is this possible?
    The client in question has its own vrf (L3VPN) at both sites and is running over mpls between both sites. We want to re-route this particular client to take our backup path, while keeping everyone else between both sites going over the primary. We are not using TE, instead LDP to build MPLS.
    I don't believe this is possible to only re-route one client, however I thought I would ask the question.
    We cannot failover to secondary link for everyone between both sites because the link doesn't have the capacity.
    Thanks in advance.

    Hi,
    Using MPLS TE would certainly be an option. You would need to setup an MPLS TE LSP over the backup. You would also need to configure a separate lookback interface on each PE and use this loopback interface address as the next hop for the specific VRF
    ip vrf X
    bgp next-hop loopback 999
    ip route 255.255.255.255 Tu1
    This way you would make sure that only the traffic for this specific VRF would travel over the TE tunnel.
    Regards

  • Ask the Expert:Concepts, Configuration and Troubleshooting Layer 2 MPLS VPN – Any Transport over MPLS (AToM)

    With Vignesh R. P.
    Welcome to the Cisco Support Community Ask the Expert conversation.This is an opportunity to learn and ask questions about  concept, configuration and troubleshooting Layer 2 MPLS VPN - Any Transport over MPLS (AToM) with Vignesh R. P.
    Cisco Any Transport over MPLS (AToM) is a solution for transporting Layer 2 packets over an MPLS backbone. It enables Service Providers to supply connectivity between customer sites with existing data link layer (Layer 2) networks via a single, integrated, packet-based network infrastructure: a Cisco MPLS network. Instead of using separate networks with network management environments, service providers can deliver Layer 2 connections over an MPLS backbone. AToM provides a common framework to encapsulate and transport supported Layer 2 traffic types over an MPLS network core.
    Vignesh R. P. is a customer support engineer in the Cisco High Touch Technical Support center in Bangalore, India, supporting Cisco's major service provider customers in routing and MPLS technologies. His areas of expertise include routing, switching, and MPLS. Previously at Cisco he worked as a network consulting engineer for enterprise customers. He has been in the networking industry for 8 years and holds CCIE certification in the Routing & Switching and Service Provider tracks.
    Remember to use the rating system to let Vignesh know if you have received an adequate response. 
    Vignesh might not be able to answer each question due to the volume expected during this event. Remember that you can continue the conversation on the  Service Provider sub-community discussion forum shortly after the event. This event lasts through through September 21, 2012. Visit this forum often to view responses to your questions and the questions of other community members.

    Hi Tenaro,
    AToM stands for Any Transport over MPLS and it is Cisco's terminology used for Layer 2 MPLS VPN or Virtual Private Wire Service. It is basically a Layer 2 Point-to-Point Service. AToM basically supports various Layer 2 protocols like Ethernet, HDLC, PPP, ATM and Frame Relay.
    The customer routers interconnect with the service provider routers at Layer 2. AToM eliminates the need for the legacy network from the service provider carrying these kinds of traffic and integrates this service into the MPLS network that already transports the MPLS VPN traffic.
    AToM is an open standards-based architecture that uses the label switching architecture of MPLS and can be integrated into any network that is running MPLS. The advantage to the customer is that they do not need to change anything. Their routers that are connecting to the service provider routers can still use the same Layer 2 encapsulation type as before and do not need to run an IP routing protocol to the provider edge routers as in the MPLS VPN solution.
    The service provider does not need to change anything on the provider (P) routers in the core of the MPLS network. The intelligence to support AToM sits entirely on the PE routers. The core label switching routers (LSRs) only switch labeled packets, whereas the edge LSRs impose and dispose of labels on the Layer 2 frames.
    Whereas pseudowire is a connection between the PE routers and emulates a wire that is carrying Layer 2 frames. Pseudowires use tunneling. The Layer 2 frames are encapsulated into a labeled (MPLS) packet. The result is that the specific Layer 2 service—its operation and characteristics—is emulated across a Packet Switched Network.
    Another technology that more or less achieves the result of AToM is L2TPV3. In the case of L2TPV3 Layer 2 frames are encapsulated into an IP packet instead of a labelled MPLS packet.
    Hope the above explanation helps you. Kindly revert incase of further clarification required.
    Thanks & Regards,
    Vignesh R P

  • How to provied Redundancy for VRF MGMT with help of BGP over MPLS(MPBGP)

    Hi,
    Please find the Network Topology.
    This is One Remote site and mamaged by Mgmt office.
    All devices on remote site is accessed by MGMT Office. My organisation seek for Redundancy for Managing devices.
    My administration is from MGW to R1. I am new to MPLS.
    AS u can see in diagram, R1 have 3 VRF(Voice,Signal and MGMT).Currently i have primary link over whitch we are running MPBGP.
    Traffic from these VRF goes to this primary link. Currently Secondary link is not connected.
    Now my organisation proposed for  the  secondary  link  and they want that only traffic from VRF -- MGMT should go through MPLS RTR R2 (the secondary link ) , when the mgmt routes  not learned from MPLS  RTR R1 (Connected to the SP1 ).
    Current  R1 config
    There is IBGP betweem R1 to both MPLS RTR.
    BGP Config
    router bgp 64513
      synchronization disable
      neighbor 10.36.150.1 remote-as 64513
      neighbor 10.36.150.1 activate
      neighbor 10.36.150.1 update-source loopback1
      address-family ipv4 vrf signalling
        redistribute connected
        redistribute static
      $
      address-family ipv4 vrf voice
        redistribute connected
        redistribute static
      $
      address-family ipv4 vrf OAM-T
        redistribute connected
        redistribute static
      $
      address-family vpnv4
        neighbor 10.36.150.1 activate
        neighbor 10.36.150.1 send-community
      $
    !<ospfv2>
    router ospf 100
      interface gei-3/3
        network point-to-point
      $
      network 10.36.150.49 0.0.0.0 area 0.0.0.0  --- loopback ip (Configured)
      network 10.36.149.60 0.0.0.3 area 0.0.0.0 ---- p2p ip bet R1 and MPLS R1.(Configured)
    network 10.36.149.64 0.0.0.3 area 0.0.0.0 ---- p2p ip bet R1 and MPLS R2. ----------  (till now not configured as secondary link is not connected)
    router-id 10.36.150.49
    so what configuration need to done at R1  to achiev the redunancy for MGMT vrf ?
    if possible please reply with sample configuration.
    or
    IN MPBGP protocol, where i will apply routing policy to apply  as- path prepand    so that Route  would be secondary to  neighbor.
    IGP-OSPF and BGP over MPLS is running.
    on Which  address-familiy nbr,should i apply, is it in VPNV4 or IPV4 or IPV4  VRF ?
    if i want 10.36.128.0/26 prefix should go to Neigbhor MPLS R2, what should i use access-list or Prefix list?
    please provide the reply with its config .
    thanks in advance,
    Regards,
    Ajay
    Message was edited by: Ajaykumar yadav

    Hi,
    Please find the Network Topology.
    This is One Remote site and mamaged by Mgmt office.
    All devices on remote site is accessed by MGMT Office. My organisation seek for Redundancy for Managing devices.
    My administration is from MGW to R1. I am new to MPLS.
    AS u can see in diagram, R1 have 3 VRF(Voice,Signal and MGMT).Currently i have primary link over whitch we are running MPBGP.
    Traffic from these VRF goes to this primary link. Currently Secondary link is not connected.
    Now my organisation proposed for  the  secondary  link  and they want that only traffic from VRF -- MGMT should go through MPLS RTR R2 (the secondary link ) , when the mgmt routes  not learned from MPLS  RTR R1 (Connected to the SP1 ).
    Current  R1 config
    There is IBGP betweem R1 to both MPLS RTR.
    BGP Config
    router bgp 64513
      synchronization disable
      neighbor 10.36.150.1 remote-as 64513
      neighbor 10.36.150.1 activate
      neighbor 10.36.150.1 update-source loopback1
      address-family ipv4 vrf signalling
        redistribute connected
        redistribute static
      $
      address-family ipv4 vrf voice
        redistribute connected
        redistribute static
      $
      address-family ipv4 vrf OAM-T
        redistribute connected
        redistribute static
      $
      address-family vpnv4
        neighbor 10.36.150.1 activate
        neighbor 10.36.150.1 send-community
      $
    !<ospfv2>
    router ospf 100
      interface gei-3/3
        network point-to-point
      $
      network 10.36.150.49 0.0.0.0 area 0.0.0.0  --- loopback ip (Configured)
      network 10.36.149.60 0.0.0.3 area 0.0.0.0 ---- p2p ip bet R1 and MPLS R1.(Configured)
    network 10.36.149.64 0.0.0.3 area 0.0.0.0 ---- p2p ip bet R1 and MPLS R2. ----------  (till now not configured as secondary link is not connected)
    router-id 10.36.150.49
    so what configuration need to done at R1  to achiev the redunancy for MGMT vrf ?
    if possible please reply with sample configuration.
    or
    IN MPBGP protocol, where i will apply routing policy to apply  as- path prepand    so that Route  would be secondary to  neighbor.
    IGP-OSPF and BGP over MPLS is running.
    on Which  address-familiy nbr,should i apply, is it in VPNV4 or IPV4 or IPV4  VRF ?
    if i want 10.36.128.0/26 prefix should go to Neigbhor MPLS R2, what should i use access-list or Prefix list?
    please provide the reply with its config .
    thanks in advance,
    Regards,
    Ajay
    Message was edited by: Ajaykumar yadav

  • WLC Redundancy over L3 link

    Hi All,
    Is it possible to deploy WLC redundancy over L3 link???
    In our scenario we have 2 controllers located in 2 different sites, the link between the site is L3. AP's are deployed across four other locations, two are coming to site 1 and rest two are coming to site 2 . How can i make redundancy on this setup , Please advice
    Controller is 4404 and AP's are 1231G series .
    Regards
    Aslam ...

    What is your link between each site? Also, I suppose your ap's are running in H-REAP mode? If you don't have enough bandwidth, then you shouldn't try it. You can always try to move the ap's to either wlc and see if users have any issues or not, before you try to deploy redundancy in this matter.

  • Transport dot1q vlan tagging over wan link

    Hi,
    I would like to transport 802.1Q vlan tagging over a wan link, is it possible ?
    I heard about l2tp V3...
    Best regards

    Hi,
    You would have to use a technology such as Ethernet over MPLS (EoMPLS) or VPLS. This technology is referred to as Layer 2 VPNs. You can get more info on this at the following locations:
    EoMPLS (part of the Cisco Any Transport over ATM suite):
    http://www.cisco.com/en/US/products/ps6646/products_ios_protocol_option_home.html
    VPLS:
    http://www.cisco.com/en/US/products/ps6648/products_ios_protocol_option_home.html
    Hope that helps - pls rate the post if it does.
    Regards,
    Paresh

  • Force Routing Over second link?

    We have a MPLS WAN connecting our offices from our Service Provider. Our Head Office has a larger 50Mbps pipe and a remote office has 2 separate 2Mbps links (lets call them link1 and link2). Right now all traffic only goes over Link1 at the remote office as per all the BGP routing. I can make a static route at the remote office for specific traffic to go over link2 and it will successfully send over that link. My question is, is there a way to get traffic from Head Office to go to Link2 instead of Link1?

    It primary depends on BGP routing. You can try to change the way ISP send traffic to you branch using different BGP path attribute  in advertisement on the two links but you have to negotiated with ISP because they can also "force" their netwrok to use on path instead of the other for example using BGP local preference. I suggest you to read here to understand BGP algorithm:
    http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13753-25.html
    Bye,
    enrico

  • Cell-relay over MPLS using MGX 8850

    we have existing ATM network using TDM links between MGX 8850 & have PVCs for voice & data traffic. We are planning to migrate the same over MPLS network
    following is the setup.
    MGX1----> PE1 ------>MPLS Cloud ------> PE2 ---->MGX2
    As per this plan we will terminate existing TDM trunks to PE routers at both the end & map VPI/VCI values at PE routers for virtual ATM pvcs over MPLS cloud.We are using cell-relay over MPLS with VC mode. My query is, can we enable MPLS L3 & L2 on the same last mile in this scenario? We want to have one IP over ATM interface on same ATM interface at PE router & make that part of VRF & enable L3 MPLS VPN between all the sites for any to any data transfer. For data we don't want to use L2 MPLS as its any to any & it will end up with too many ATM PVCs.
    In this setup PE router & MGX will be configured in NNI-NNI at both end. If we want to create one sub-interface at same ATM interface at PE router end, then that port need to be in UNI. Is it possible to use same ATM trunk port as NNI & UNI?
    In MGX 8850 we have RPM,AXSM & VISM modules.

    the following document should give you some idea,
    http://www.cisco.com/en/US/products/hw/modules/ps2797/products_module_installation_guide_chapter09186a0080086f9a.html

  • Secondary Site SRST over MPLS

    My company has IPT in our HQ. We have a secondary mfg location in the next town that is connected via a point-2-point T1, and we run VoIP over it. We have a PRI for PSTN access at the HQ. The 2nd location had POTS access until someone canceled them feeling they were unnecessary (pros and cons for that) At both locations we have SRST on a 1760-V.
    Our location in CA (HQ is in WI) currently has its own PBX which is dying. I wish to roll out VoIP to it over MPLS, which I would then replace the P2P T1 and put it in the MPLS cloud too. I plan NOT to add a voice gateway at the CA location and just put a switch out there and route all calls through WI (Leaving a POTS line for fax and 911).
    Management only worry is if the phones go out at the HQ, CA will be stranded. I said SRST would kick in and maintain call processing, until the batteries ran out. Only THEN everything would be down. (The other scenario would be the HQ building is compromised somehow).
    Is it possible if a DR plan is in place that if an extended power loss occurs, or the HQ building is destroyed, that call routing could be established through our secondary location; since everything is connected via MPLS? I know POTS lines would need to be reestablished, but could the second WI location run SRST for the CA site?

    I am not asking how to do it, just if it is possible down the road some time. This could sell the plan to management if it is possible.

  • GRE function over MPLS

    Hello,
    Has anyone here implemented "GRE function over MPLS"?
    Would it be possible to point to some links discussing advantages/disadvantages and some design aspects of the same?
    Thanks
    Cheers,
    ~sultan

    Hello Harold,
    Thanks for replying, actually just thought about it, considering the existing customer (P2M) who's running GRE on IPLC links, they want to continue the same after migrating to MPLS, just curios to know whether this implementation has been implemented by anyone and whether it could be improved further.
    Thanks
    Cheers,
    ~sultan

  • PBR on MPLS link

    Hi ,
    We have 2 MPLS Link with 100 Mbps of 2 service provider .
    PBR Is configured on primary router .
    PBR CONF
    interface GigabitEthernet0/0.130
    encapsulation dot1Q 130
    ip address 10.10.10.1 255.255.255.240
    ip policy route-map SANTTML
    route-map SANTTML permit 10
    match ip address SANTTML
    set ip next-hop 10.136.22.6
    ip access-list extended SANTTML
    permit ip host 10.136.100.8 host 10.132.22.8
    permit ip host 10.136.100.10 host 10.132.22.8
    When we sending data from our server 10.136.100.10 to 10.132.22.8 traffic is out from second router,
    but at receive only primary router.
    Is there any MPLS routing issue
    Please help .
    Sanjay Nalawade.

    Hi Sanjay
    My viewpoint on your traffic flow requirements.
    First let me put forward my understanding of your network setup.
    You have taken MPLS VPN Services from 2 Different Service Providers and you want to achieve source-based routing between a pair of Source & Destination utilizing a particular ISP Uplink. Is that Correct.
    If thats so, the PBR will only help to control the Forward Traffic and decide to choose which ISP Uplink to use depenind upon the Source.
    For controlling the reverse traffic for the same pair of source-destination over that particular ISP you need to manipulate the route advertisement for that particular source making the Particular ISP as preferred and keeping the other ISP as backup for that particular source network.
    Say for example if you are using BGP then doing an AS-Path Prepend for the Source Network you are doing PBR on the backup ISP will help achive you desired results for using a particlar ISP preferred for both Uplink and Downlink with respect to a particular destination.
    Hope it Helps
    Thanks & Regards
    Vaibhava Varma

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