Ask the Expert: Installing, Configuring, and Troubleshooting Cisco Unified MeetingPlace

With Dejan Petrovic
Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about different MeetingPlace deployment types, what they include and require, and what they are capable of with Cisco expert Dejan Petrovic.  Cisco Unified MeetingPlace is a conferencing solution providing audio and video conferencing, and data sharing experience. It can be fully on premise solution or a hybrid solution integrated with WebEx for data sharing capability. Dejan  will be answering any questions about installation, upgrade, migration and troubleshooting processes.
Dejan Petrovic is a Cisco customer support engineer and team lead in the Conferencing Technical Assistance Center team based in Boxborough. He has been providing support to customers and partners for Cisco Unified MeetingPlace solutions since 2009. He has more than eight years of experience working in the IT industry as system administrator, business manager, and networking consultant. Petrovic holds a bachelor’s degree in computer network and information systems as well as several Cisco certifications, including CCNA, Cisco IPCC Express Specialist,  and MeetingPlace Support Specialist.
Remember to use the rating system to let Dejan know if you have received an adequate response. 
Dejan 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 Collaboration, Voice and Video sub-community discussion forum shortly after the event.  This event lasts through February 8, 2013. Visit this forum often to view responses to your questions and the questions of other community members.

Hello Nick,
I appreciate your questions, and will try to answer them below.
When you are installing a fresh new MeetingPlace 8.5 that you plan to integrate with WebEx, the only available option is WebEx Managed user profiles. With this option, you can either create profiles manually on WebEx side, and then sync them to MeetingPlace, or you can use Federated SSO for import of profiles from LDAP server in your network to WebEx, and then sync the profiles from WebEx to MeetingPlace (you choose one of these two options when provisioning WebEx site).
These are the only two available options for a NEW install of MP8.5 for WebEx integration, and as you can see both options are WebEx Managed profiles, the only difference is if you are going to use Federated SSO, or create profiles on WebEx manually.
During the install, you can select to install MeetingPlace managed users option, but you would choose this option only if you plan to do a migration from an earlier MP release (7.x/8.0) with WebEx integration and Directory Integration.
For example, MeetingPlace managed profiles option is available if you had MeetingPlace 8.0 integrated with WebEx Type II (WebEx scheduling) with Directory Integration, where you had your MP8.0 integrated with CUCM via AXL for user profile management (CUCM integrated with LDAP), and your WebEx Site provisioned for Directory Integration, and then migrate from that system to MeetingPlace 8.5 that you installed selecting MeetingPlace managed user profiles.
The same goes for MeetingPlace Scheduling (Type I) integration with WebEx. Possible only with migration, and not with a fresh new installation.
Now, to focus on your questions.
1. As you can see, you don't have many options. If you have MS Active Directory that you would like to use for SSO in MP8.5 WebEx Scheduling, you will have to go with Federated SSO. So far, I haven't heard of any issues with that as it seems to be pretty straight forward to configure, and also WebEx Support team provides direct support for that setup as it is a direct integration between WebEx Site and the LDAP server (nothing to do with MeetingPlace side of the equation).
2. In general, if you have Federated SSO enabled, you would go to WebEx site home page, click on Host Log In button which will then ask you to enter your network/windows credentials and place you to WebEx scheduling interface.
If you have Directory Integration (like on MP8.0 WebEx Type II with CUCM/AXL integration), when you go to WebEx site home page and click Host Log In button, you are being redirected to the MeetingPlace log-in page where you would enter your Windows credentials (assuming your CUCM is integrated with LDAP), and then if log in is successful, you get redirected back to WebEx scheduling interface. With this type of deployment, you can log in to WebEx scheduling interface ONLY if you are connecting from your company network or have a VPN connection to your company network. This is a major limitation that most customers complained about, but the reason for this was that we didn't want to make MP Application server hostname/IP publicly available and hence cause a security issue.
I am sure I answered your questions, but opened some new questions. So, please, let me know if I need to clarify anything.
Thank you.
-Dejan

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    144881: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet callingSearchSpace =
    144882: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet callingSearchSpaceName = None
    144883: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet redirectCSS = default
    144884: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet location = {29C5C1C4-8871-4D1E-8394-0B9181E8C54D}
    144885: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet locationName = Hub_None
    144886: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet partition =
    144887: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet partitionName = None
    144888: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet voiceMailProfile =
    144889: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet voiceMailProfileName = None
    144890: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet forwardBusyVM =
    144891: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet forwardBusyDestination =
    144892: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet forwardBusyCSS =
    144893: Apr 22 21:54:23.884 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerServlet forwardBusyCSSName = None
    144953: Apr 22 21:54:23.913 IST %MADM-LIB_AXL-7-UNK:AXL-ExecutionCmd-569.CCMLineSOAPAdmin: try makeRequest() on AXL: 10.106.113.142, AXLUser: axl, AXLPassword: XXXXXX
    144954: Apr 22 21:54:23.913 IST %MADM-LIB_AXL-7-UNK:CCMVersionSOAPAdmin.getAXLVersion():7.1
    144955: Apr 22 21:54:23.913 IST %MADM-LIB_AXL-7-UNK:AXL-ExecutionCmd-569.CCMLineSOAPAdmin: makeRequest() - Start REQUEST ====================
    144956: Apr 22 21:54:23.913 IST %MADM-LIB_AXL-7-UNK:POST /axl/ HTTP/1.1
    Connection: keep-alive
    Host: 10.106.113.142:8443
    Authorization: Basic YXhsOmF4bA==
    SOAPAction: "CUCM:DB ver=7.1"
    Accept: text/*
    Content-type: text/xml; charset="utf-8"
    Cache-Control: no-cache
    Pragma: no-cache
    Content-length: 440
    http://schemas.xmlsoap.org/soap/envelope/">MADM_5691234CRS Line descriptionCallPark
    144957: Apr 22 21:54:23.913 IST %MADM-LIB_AXL-7-UNK:AXL-ExecutionCmd-569.CCMLineSOAPAdmin: makeRequest() - End REQUEST ==================
    144958: Apr 22 21:54:23.914 IST %MADM-LIB_AXL-7-UNK:AXL-ExecutionCmd-569.CCMLineSOAPAdmin: getSocket: MADM_LIB_AXL_AXL_SOCKET_POOL-0-79[TLS_RSA_WITH_AES_128_CBC_SHA: Socket[addr=10.106.113.142,port=8443,localport=44913]]
    144987: Apr 22 21:54:24.195 IST %MADM-LIB_AXL-7-UNK:AXL-ExecutionCmd-570.CCMCTIRoutePointSOAPAdmin: makeRequest() - Start REQUEST ====================
    144988: Apr 22 21:54:24.195 IST %MADM-LIB_AXL-7-UNK:POST /axl/ HTTP/1.1
    Connection: keep-alive
    Host: 10.106.113.142:8443
    Authorization: Basic YXhsOmF4bA==
    SOAPAction: "CUCM:DB ver=7.1"
    Accept: text/*
    Content-type: text/xml; charset="utf-8"
    Cache-Control: no-cache
    Pragma: no-cache
    Content-length: 839
    http://schemas.xmlsoap.org/soap/envelope/">MADM_570testttesttCTI Route PointCTI Route PointCTI Route PointSCCPUserRing1000010000
    144989: Apr 22 21:54:24.195 IST %MADM-LIB_AXL-7-UNK:AXL-ExecutionCmd-570.CCMCTIRoutePointSOAPAdmin: makeRequest() - End REQUEST ==================
    145014: Apr 22 21:54:24.647 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerUtil.createRPAndLineOnCCM() - CTI RP created.
    145015: Apr 22 21:54:24.647 IST %MADM-ADM_CFG-7-UNK:JTAPITriggerUtil.createRPAndLineOnCCM() - Created a Route Point = 1234
    As you would aready know, the UCCX will send an AXL request (within the SOAP envelope) to the CUCM to create this RP. Looking at the existing code, there does not seem to be a method where we are differentiating between CFB_internal and CFB_external while sending this request.
    We have taken this as an enhancement request and also spoken to the business unit about the same. It has been added to the roadmap, we will reach out to you offline to understand the business case so that the process can be expedited if needed.
    Keep the questions coming
    Cheers,
    Abhiram Kramadhati

  • Ask the Expert: Different Flavors and Design with vPC on Cisco Nexus 5000 Series Switches

    Welcome to the Cisco® Support Community Ask the Expert conversation.  This is an opportunity to learn and ask questions about Cisco® NX-OS.
    The biggest limitation to a classic port channel communication is that the port channel operates only between two devices. To overcome this limitation, Cisco NX-OS has a technology called virtual port channel (vPC). A pair of switches acting as a vPC peer endpoint looks like a single logical entity to port channel attached devices. The two devices that act as the logical port channel endpoint are actually two separate devices. This setup has the benefits of hardware redundancy combined with the benefits offered by a port channel, for example, loop management.
    vPC technology is the main factor for success of Cisco Nexus® data center switches such as the Cisco Nexus 5000 Series, Nexus 7000 Series, and Nexus 2000 Series Switches.
    This event is focused on discussing all possible types of vPC along-with best practices, failure scenarios, Cisco Technical Assistance Center (TAC) recommendations and troubleshooting
    Vishal Mehta is a customer support engineer for the Cisco Data Center Server Virtualization Technical Assistance Center (TAC) team based in San Jose, California. He has been working in TAC for the past 3 years with a primary focus on data center technologies, such as the Cisco Nexus 5000 Series Switches, Cisco Unified Computing System™ (Cisco UCS®), Cisco Nexus 1000V Switch, and virtualization. He presented at Cisco Live in Orlando 2013 and will present at Cisco Live Milan 2014 (BRKCOM-3003, BRKDCT-3444, and LABDCT-2333). He holds a master’s degree from Rutgers University in electrical and computer engineering and has CCIE® certification (number 37139) in routing and switching, and service provider.
    Nimit Pathak is a customer support engineer for the Cisco Data Center Server Virtualization TAC team based in San Jose, California, with primary focus on data center technologies, such as Cisco UCS, the Cisco Nexus 1000v Switch, and virtualization. Nimit holds a master's degree in electrical engineering from Bridgeport University, has CCNA® and CCNP® Nimit is also working on a Cisco data center CCIE® certification While also pursuing an MBA degree from Santa Clara University.
    Remember to use the rating system to let Vishal and Nimit know if you have received an adequate response. 
    Because of the volume expected during this event, Vishal and Nimit might not be able to answer every question. Remember that you can continue the conversation in the Network Infrastructure Community, under the subcommunity LAN, Switching & Routing, shortly after the event. This event lasts through August 29, 2014. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.

    Hello Gustavo
    Please see my responses to your questions:
    Yes almost all routing protocols use Multicast to establish adjacencies. We are dealing with two different type of traffic –Control Plane and Data Plane.
    Control Plane: To establish Routing adjacency, the first packet (hello) is punted to CPU. So in the case of triangle routed VPC topology as specified on the Operations Guide Link, multicast for routing adjacencies will work. The hellos packets will be exchanged across all 3 routers and adjacency will be formed over VPC links
    http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/operations/n5k_L3_w_vpc_5500platform.html#wp999181
    Now for Data Plane we have two types of traffic – Unicast and Multicast.
    The Unicast traffic will not have any forwarding issues, but because the Layer 3 ECMP and port channel run independent hash calculations there is a possibility that when the Layer 3 ECMP chooses N5k-1 as the Layer 3 next hop for a destination address while the port channel hashing chooses the physical link toward N5k-2. In this scenario,N5k-2 receives packets from R with the N5k-1 MAC as the destination MAC.
    Sending traffic over the peer-link to the correct gateway is acceptable for data forwarding, but it is suboptimal because it makes traffic cross the peer link when the traffic could be routed directly.
    For that topology, Multicast Traffic might have complete traffic loss due to the fact that when a PIM router is connected to Cisco Nexus 5500 Platform switches in a vPC topology, the PIM join messages are received only by one switch. The multicast data might be received by the other switch.
    The Loop avoidance works little different across Nexus 5000 and Nexus 7000.
    Similarity: For both products, loop avoidance is possible due to VSL bit
    The VSL bit is set in the DBUS header internal to the Nexus.
    It is not something that is set in the ethernet packet that can be identified. The VSL bit is set on the port asic for the port used for the vPC peer link, so if you have Nexus A and Nexus B configured for vPC and a packet leaves Nexus A towards Nexus B, Nexus B will set the VSL bit on the ingress port ASIC. This is not something that would traverse the peer link.
    This mechanism is used for loop prevention within the chassis.
    The idea being that if the port came in the peer link from the vPC peer, the system makes the assumption that the vPC peer would have forwarded this packet out the vPC-enabled port-channels towards the end device, so the egress vpc interface's port-asic will filter the packet on egress.
    Differences:  In Nexus 5000 when it has to do L3-to-L2 lookup for forwarding traffic, the VSL bit is cleared and so the traffic is not dropped as compared to Nexus 7000 and Nexus 3000.
    It still does loop prevention but the L3-to-L2 lookup is different in Nexus 5000 and Nexus 7000.
    For more details please see below presentation:
    https://supportforums.cisco.com/sites/default/files/session_14-_nexus.pdf
    DCI Scenario:  If 2 pairs are of Nexus 5000 then separation of L3/L2 links is not needed.
    But in most scenarios I have seen pair of Nexus 5000 with pair of Nexus 7000 over DCI or 2 pairs of Nexus 7000 over DCI. If Nexus 7000 are used then L3 and L2 links are required for sure as mentioned on above presentation link.
    Let us know if you have further questions.
    Thanks,
    Vishal

  • Ask the Experts: Single Sign-On with Cisco WebEx Meetings Server, Internet Reverse Proxy, and Enterprise License Manager Solutions

    With Arun Kumar
    Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about Single Sign-On (SSO) with Cisco WebEx Meetings Server (Cisco WMS), Internet Reverse Proxy (IRP), and Enterprise License Manager (ELM) solutions.
    SSO standards such as Security Assertion Markup Language (SAML) 2.0 provide secure mechanisms for passing credentials and related information between different websites that have their own authorization and authentication systems. SSO enables simplified user authentication and management.
    IRP provides public access, enabling users to host or attend meetings from the Internet and mobile devices. Although IRP is optional, Cisco encourages its use because it provides a better user experience for your mobile workforce.
    Example question topics include:
    SSO profiles and SAML 2.0 Identity providers (IdPs) supported in Cisco WMS
    Basic configuration of IdPs
    Interaction between IdPs and Cisco WMS
    Difference between the cloud client implementation and Cisco WMS
    Meeting access behavior in a split-horizon network topology with SSO
    How to enable public access to Cisco WMS
    Cisco WMS ELM operations
    Cisco WMS ELM compared to other unified communications ELM or standalone ELM and compatibility/inoperability between them
    Arun Kumar is a team lead in the San Jose Conferencing Technical Assistance Center. He has over eight years of experience in conferencing technology and specializes in Cisco Unified Meeting Place Express and Cisco WebEx Meeting Server. He joined Cisco in 2010 as an escalation engineer for the Cisco Telepresence group. Before joining Cisco he worked for the UK's third-largest internet service provider Supanet on VoIP technology and the *Nix domain. Kumar holds a master of science degree in computer science from Sikkim Manipal University in India, and he holds CCIE (Voice) and VMware Certified Professional certifications.
    Remember to use the rating system to let Arun know if you have received an adequate response.
    Arun might not be able to answer each question because of the volume expected during this event. Remember that you can continue the conversation on the Collaboration, Voice, and Video community Other Subjects subcommunity shortly after the event. This event lasts through Monday May 17, 2013. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.

    Hello Mobile Service,
    CWMS and Jabber integrations:
    http://www.cisco.com/en/US/docs/voice_ip_comm/jabber/Windows/9_1/JABW_BK_E4CC9599_00_environment-configuration-guide_chapter_01.html#JABW_TK_SF2ED5E1_00
    In above link start from section: Set Up Cisco WebEx Meetings Server on Cisco Unified Presence
    then move to section: Add Cisco WebEx Meetings Server to a Profile
    Once done, move to section: Specify Conferencing Credentials in the Client side. You will see above server already listed there, just go ahead and enter your username and password (pleae make sure this user already exists on your CWMS) and accept any certificate/s if presented. Jabber Integration is done and you can start testing the same.
    Attached CWMS - AFDS integration doc.
    Please let me know if any furhter question.
    Thanks, Arun

  • Ask the Expert: Packet Capture Capabilities of Cisco Routers and Switches

    With Rahul Rammanohar 
    Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about packet capture capabilities of Cisco routers and switches.
    In May 2013, we created a video that included packet capture capabilities across multiple Cisco routers and switches. For each product, we began with a discussion about the theory of the capabilities, followed by an explanation of the commands, and we concluded with a demo on real devices. In this Ask the Expert event, you’re encouraged to ask questions about the packet capture capabilities of these Cisco devices:
    •       7600/6500: mini protocol analyzer (MPA), ELAM, and Netdr
    •       ASR9k: network processor capture
    •       7200/ISRs: embedded packet capture
    •       Cisco Nexus 7K, 5K, and 3K: Ethanalyzer
    •       Cisco Nexus 7K: ELAM
    •       CRS: show captured packets
    •       ASR1K: embedded packet capture
    More Information
    Blog URL: Packet Capture Capabilities of Cisco Routers and Switches
    Watch the Video:  https://supportforums.cisco.com/videos/6226
    Hitesh Kumar is a customer support engineer in the High-Touch Technical Services team at Cisco specializing in routing protocols. He has been supporting major service providers and enterprise customers in routing, Multiprotocol Label Switching (MPLS), multicast, and Layer 2 VPN (L2VPN) issues on routing platforms for more than three years. He has more than six years of experience in the IT industry and holds a CCIE certification (number 38757) in service. 
    Rahul Rammanohar is a technical leader with the High-Touch Technical Support Team in India. He handles escalations in the area of routing protocols and large-scale architectures for devices running Cisco IOS, IOS-XR, and IOS-XE Software. He has been supporting major service providers and large enterprise customers for routing, MPLS, multicast, and L2VPN issues on all routing platforms. He has more than 13 years of experience and holds a CCIE certification (number 13015) in routing/switching and service provider.
    Remember to use the rating system to let Hitesh and Rahul know if you have received an adequate response.  
    Because of the volume expected during this event, Hitesh and Rahul might not be able to answer each question. Remember that you can continue the conversation in the Service Provider, sub-community forum shortly after the event. This event lasts through November 1, 2013. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.

    Hello Erick
        Thanks for the topology. The trigger will be different for labelled  packet as you would need to mention the values of labels too in the  trigger.
         Below are two examples of one or two labels being  used, it depends on where you are capturing the packet in mplsvpn  scenario which will decide teh number of labels being imposed on the  packet.
    Trigger for one label. (if the router on which you are capturing the packet PHP is being performed)
    VPN label - 5678
    Source Address - 111.111.111.111
    Destination Address - 123.123.123.123
    show platform capture elam trigger dbus others if data = 0 0 0 0x88470162 0xE0000000 0 0 0x00006F6F 0x6F6F 7B7B 0x7B7B0000 [ 0 0 0 0xffffffff 0xf0000000 0 0 0x0000ffff 0xffffffff 0xffff0000 ]
    Trigger for two labels. (for other core routers)
    IGP label - 1234
    VPN label - 5678
    Source Address - 111.111.111.111
    Destination Address - 123.123.123.123
    show platform capture elam trigger dbus others if data = 0 0 0 0x8847004D 0x20000162 0xE0000000 0 0 0x00006F6F 0x6F6F7B7B 0x7B7B0000 [ 0 0 0 0xffffffff 0xf000ffff 0xf0000000 0 0 0x0000ffff 0xffffffff 0xffff0000 ]
        You can check the labels being used (by using show ip cef <> details) and covert their values to hex and change the trigger accordingly.
         I have changed the colors for better understanding. If you notice carefully in the trigger the values for ip address, labels have just been converted to their respective hex values which could be replaced.
         Please let me know if this helps.
    Thanks & Regards
    Hitesh & Rahul

  • Ask the Expert: Enterprise Design and Deployment of Multicast

    Welcome to this Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about Cisco enterprise design and deployment of multicast solutions.
    The enterprise world is evolving to be overcome with large throughput capacity and record numbers of users connecting to the network. Mechanisms such as multicast, which allows for a minimization of throughput for multiple users subscribing to the same stream, are a welcome addition. Applications such as enterprise all-hands video streaming, trading applications, mass operating system deployment, and custom implementations can put a strain on the network if done via unicast. Multicast can minimize this strain by replicating a single stream for subscription by multiple parties who would like to receive the same information. For this Ask the Expert event, Patrick Lloyd, CCIE R&S no. 39750 and a network consulting engineer with Cisco’s Enterprise Advanced Services Delivery Team, will answer questions about multicast design and implementation based on best practices and prior experience with large enterprise deployments.
    Patrick Lloyd is a network consulting engineer for Cisco’s Enterprise East Advanced Services team, working to support and lend his expertise to a number of financial, insurance, healthcare, and consulting customers. In his four years of experience, he has lent design expertise to multicast networks ranging from 500 Cisco devices and 20K users to upward of 4500 Cisco devices and 50K users. Patrick is certified with his Cisco Certified Internetworking Expert no. 39750 in the Routing and Switching track and also has achieved certification in CCNA Security and Securing Cisco Routers and Switches as part of the CCNP Security track. Patrick received his MS degree in networking and systems administration from Rochester Institute of Technology in Rochester, NY, and his BS degree in computer science from Eastern Connecticut State University. He frequently gives customer-based knowledge transfers.
    Remember to use the rating system to let Patrick know if you have received an adequate response.
    Because of the volume expected during this event, Patrick might not be able to answer every question. Remember that you can continue the conversation in Network Infrastructure under the subcommunity WAN, Routing & Switching shortly after the event. This event lasts through September 12, 2014. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.

    Thanks for the question!  This is actually a good one that I've encountered with a couple customers in the past, the tradeoff between a flood and prune type design, as opposed to the shared tree -> shortest path tree sequence.  As per Cisco best practice, we are actively trying to get customers to implement sparse mode, going so far as to not support PIM dense mode in our data center products.  And for good reason!  The last thing you want is a chatty protocol within the data center which is flooding traffic out to receivers who may or may not be interested in it every 3 minutes.  Instead, you're much better off having interested receivers join a stream, have your RP connect the interested senders and receivers, and then transition to the shortest path between source and destination.
    That being said, if you're studying for CCIE or looking to get experience in how multicast works, dense mode should at least be a lab exercise!
    Links for reference as to the difference in PIM modes:
    Dense Mode Operation:
    http://www.cisco.com/en/US/docs/ios/ipmulti/configuration/guide/imc_pim_dense_rfrsh.pdf
    Pim Modes and explanation of each:
    http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12-2_53_se/configuration/guide/3750xscg/swmcast.html#wp1077051
    A great slide deck to learn the operation of multicast:
    https://www.ciscolive.com/online/connect/sessionDetail.ww?SESSION_ID=6633&backBtn=true
    Troubleshooting Multicast:
    https://www.ciscolive.com/online/connect/sessionDetail.ww?SESSION_ID=78578&backBtn=true
    Let me know if this is the answer you're looking for!

  • Ask the Expert: Single-Site and Multisite FlexPod Infrastructure

    With Haseeb Niazi and Chris O'Brien 
    Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about Single-Site and Multisite FlexPod Infrastructure with experts Haseeb Niazi and Chris O'Brien.
    This is a continuation of the live webcast.
    FlexPod is a predesigned and prevalidated base data center configuration built on Cisco Unified Computing System, Cisco Nexus data center switches, NetApp FAS storage components, and a number of software infrastructure options supporting a range of IT initiatives. FlexPod is the result of deep technology collaboration between Cisco and NetApp, leading to the creation of an integrated, tested, and validated data center platform that has been thoroughly documented in a best practices design guide. In many cases, the availability of Cisco Validated Design guides has reduced the time to deployment of mission-critical applications by 30 percent.
    The FlexPod portfolio includes a number of validated design options that can be deployed in a single site to support both physical and virtual workloads or across metro sites for supporting high availability and disaster avoidance. This session covers various design options available to customers and partners, including the latest MetroCluster FlexPod design to support a VMware Metro Storage Cluster (vMSC) configuration.
    Haseeb Niazi is a technical marketing engineer in the Data Center Group specializing in security and data center technologies. His areas of expertise also include VPN and security, the Cisco Nexus product line, and FlexPod. Prior to joining the Data Center Group, he worked as a technical leader in the Solution Development Unit and as a solutions architect in Advanced Services. Haseeb holds a master of science degree in computer engineering from the University of Southern California. He’s CCIE certified (number 7848) and has 14 years of industry experience.   
    Chris O'Brien is a technical marketing manager with Cisco’s Computing Systems Product Group.  He is currently focused on developing infrastructure best practices and solutions that are designed, tested, and documented to facilitate and improve customer deployments. Previously, O'Brien was an application developer and has worked in the IT industry for more than 20 years.
    Remember to use the rating system to let Haseeb and Chris know if you have received an adequate response. 
    Because of the volume expected during this event, Haseeb and Chris might not be able to answer every question. Remember that you can continue the conversation in the Data Center community, subcommunity Unified Computing shortly after the event. This event lasts through September 27, 2013. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.
    Webcast related links:
    Single-Site and Multisite FlexPod Infrastructure - Slides from live webcast
    Single-Site and Multisite FlexPod Infrastructure: FAQ from live webcast
    Single-Site and Multisite FlexPod Infrastructure - Video from live webcast

    I would suggest you read this white paper which details the pros and cons of direct connect storage. 
    http://www.cisco.com/en/US/partner/prod/collateral/ps10265/ps10276/whitepaper_c11-702584.html   This paper captures all the major design points for Ethernet and FC  protocols.
    I would only add that in FlexPod we are trying to create a highly  available solution and "flexible" solution; Nexus switching helps us  deliver on both with vPC and unified ports.
    NPV equats  to end-host mode which allows the system to present all of the servers  as N ports to the external fabric.  In this mode, the vHBAs are pinned  to the egress interfaces of the fabric interconnects.  This pinning  removes the potential of loops in the SAN fabric.  Host based multipathing of the  vHBAs account for potential uplink failures.  The NPV mode (end-host  mode) simplifies the attachment of UCS into the SAN fabric and that is  why it is in NPV mode by default.
    So for your last question, I will have to put my  Product Manager hat on so bear with me.   First off there is no drawback  to enabling the NPIV feature (none that I am aware of) the Nexus 5000  platform simply offers you a choice to design and support multiple FC  initiators (N-Ports) per F-Port via NPIV.  This allows for the  integration of the FI end-host mode described above.  I  imagine being a  unfied access layer switch, the Nexus team enabled standard Fibre  Channel switching capability and features first.  The implementatin of  NPIV is a customer choice based on their specific access layer  requirements.
    /Chris

  • Ask the Expert: Layer 2 Security on Cisco Catalyst Platforms

    With Wilson Bonilla
    Welcome to the Cisco Support Community Ask the Expert conversation.  This  is an opportunity to learn and ask questions about about issues in designing, planning, and implementing Layer 2 security in your LAN network with expert Wilson Bonilla. 
    Wilson will cover topics that network engineers face daily such as Spanning Tree Protocol security, private VLANs, IP source guard, protected ports, dynamic ARP inspection, virtual LAN access-control lists (VLAN ACLs), and Dynamic Host Configuration Protocol (DHCP) snooping over Cisco Catalyst platforms.  With the fast growth of networks, Layer 2 security is even more critical in the LAN to help your network become more reliable, efficient, and secure. Wilson will answer your questions about LAN networks with Cisco Catalyst switches.  
    Wilson Bonilla is a technical networking trainer at the Learning and Development Department for Cisco Technical Assistance Center located in Costa Rica. Before joining the Training Department, he worked for the Cisco TAC as a customer support engineer focused on LAN Switching for more than two years. While working on LAN switching, Wilson also had roles such as technical leader and trainer, adding to his area of expertise in Cisco Catalyst Layer 2 switching. He has CCNP routing and switching certification and is currently studying to achieve his CCNA certification in data center.
    Remember to use the rating system to let Wilson know if you've received an adequate response. 
    Because of the volume expected during this event, Wilson might not be able to answer every question. Remember that you can continue the conversation in the Network Infrastructure community, subcommunity, LAN, Switching and Routing, shortly after the event. This event lasts through November, 2013. Visit this forum often to view responses to your questions and those of other Cisco Support Community members.

    Hello NetNavi.
    Check the post above about MacSec for more information and let me know if you need further clarification, if so I will do my best,
    In regards to best practices there is a Cisco document; it describes deployments and best practices in every scenario; Supplicants, authenticator, authentication services and other configurations. Please check it out:
    http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6638/deploy_guide_c17-663760.html
    In regards to Private VLANS:
    What is a Private Vlan?
    A private Vlan is a way to isolate hosts within the same Vlan or broadcast domain. So even when you might have devices sharing the same broadcast domain they can be isolated, this isolated is configured based on sub-domains also most often called primary and secondary Vlans.
    What is a primary Vlan?
    The primary Vlan is representation of the private Vlan, a primary Vlan has one or more secondary Vlans, a switch uses the primary Vlan to present traffic from the secondary Vlans to its neighboring devices.
    What is a secondary Vlan?
    A secondary Vlan is a sub-domain of the primary Vlan. We could say that the secondary Vlans belongs to the primary. The must be associated to a primary Vlan. There are two types of secondary vlans: Isolated and Community secondary Vlans.
    What does it happen to host within a secondary isolated Vlan?
    Host within the isolated vlan; can’t communicate to neither other host in the same isoalted vlan nor host in a community vlan.
    What does it happen to host within the secondary community Vlan?
    Host within the community Vlan can communicate with other host assigned to the same community vlan, but they can’t talk to host in other community vlans.
    What are the benefits of implementing private Vlans?
    Scalability: The most common scenario is a service provider. Imagine all customers of a service provider connected through DSL, cable modem… it’s very likely that all customers belong to the same broadcast domain, however if that’s the case why is it that I can’t use my neighbor’s printer, or maybe why is it that I can’t access the files he has store in his computer, (security) we are in the same broadcast shouldn’t I be able to at least ping his ip address?. Well that’s because the ISP must guarantee some type of security for their customers, and because put every single customer that they have in a single Vlan is not scalable they use private Vlans.
    Examples:
    ISP use private vlans to protect from security bridges, Private vlans and isolated Vlans are used to protect personal information for example from one customer to another.
    DMZ; Many implementations utilizes private vlans in a DMZ to limt or minimize that risk of a compromised server.
    I would like to share this documentation with you for further information and configuration guidelines
    http://www.cisco.com/en/US/tech/tk389/tk814/technologies_configuration_example09186a008017acad.shtml#hw
    This document explains what Cisco Catalyst switches support Private Vlans. 
    http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a0080094830.shtml
    Let me know if you have further questions.
    Regards
    Wilson B.

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