VSAN Proactive Test - Multicast

Similar Questions

• Confused multicast network activity

  I was using the multicast sample included in the installation of the 4 ENTITY, test multicast. I'm confused as to what I should see my resource monitor - network (Win7). I can see the connections to customers playing the live stream, the only problem is that it seems that I send you the full bandwidth to customers. I thought that I would be the server send less bandwidth to each client. My first thought was that, because the clients and the server are on the same physical network that customers were mainly using the server as main seeder. I guess I'm asking how I can see multicasting is working.

  When FMS transmits a stream of data in a multicast group, it becomes indeed a peer in the group.  The IP Multicast is the only exception to this because FMS bind to a multicast address and port and push the stream directly to it.  Because FMS is a counterpart of the group in the merger and level Application (P2P) scenarios, he will share the stream with its direct neighbours.  By default, FMS will grow up to 4 copies of the output stream.  You can adjust this value by changing NetStream.multicastPushNeighborLimit.  If the server and the clients are on the same subnet, you can set the merge data stream type (in the Configurator) and SGF will insert a multicast IP copy and share it as a peer in the group.  Clients on the same subnet will generally get the IP multicast stream, first and share with their peers in the group, who cannot receive data via IP multicast.  Multicast IP can be configured in your network equipment to route the data on additional subnets for more advanced scenarios.

  Bandwidth savings becomes more obvious when you have a very large number of participants in the Group of any display of the stream.  To give you an example, at Adobe, we use a server to process thousands of customers viewing a multicast stream.  To minimize the P2P traffic between offices during these events, we partition viewers in remote offices in a panel appointed to this post.  In doing so, FMS will send about 3 or 4 copies of the flow of this office WAN link, and then it will broadcast between peers in this office.

  In the multicast of the sample player application included with FMS, you can modify the HTML code to enable debugging.  The variable debugging flash is currently commented out.  You can uncomment only and this player displays a button that toggles debug windows.  If you look in the left pane of debugging, you will see a print of NetStream.multicastInfo properties.  You can use these to determine where and how your data are received.

  that is bytesRequestedFromPeers would indicate how derive you from their peers while bytesReceivedFromIPMulticast represents the data that you receive directly from IP multicast

  I hope this helps to clear up the confusion.

• multicast performance test?

  I'm curious to know what kind of bandwidth, you get performance multicast vSAN health plugin test. Now our vSAN is on a link of 1 G (will modernize it to 10G thereafter), I get only about 80 M/s compared to the desired bandwidth 125 M/s, I was wondering what could be done to improve it. It is a facility newly vSAN and no other traffic at all the.

  We use Dell N4032 switch, the current configuration of the network's MTU 9000, with active igmp snooping and quierer address configured as the IP of the interface VLAN switch, seems she works as assumed:

  show ip igmp snooping groups

  Group VLAN journalist IIR filter address Source

  ---- ------------------ ----------------- ------- --------- ---------------

  95 224.1.2.3 192.168.51.11 exclude Te1/0/2

  95 224.2.3.4 192.168.51.11 exclude Te1/0/2

  95 239.255.255.253 192.168.51.11 exclude Te1/0/2

  95 224.2.3.4 192.168.51.12 exclude Te1/0/4

  95 239.255.255.253 192.168.51.12 exclude Te1/0/4

  95 224.1.2.3 192.168.51.13 exclude Te1/0/6

  95 224.2.3.4 192.168.51.13 exclude Te1/0/6

  95 239.255.255.253 192.168.51.13 exclude Te1/0/6

  95 224.2.3.4 192.168.51.14 exclude Te1/0/8

  95 239.255.255.253 192.168.51.14 exclude Te1/0/8

  I also tried to disable igmp monitoring on this vlan, makes no difference on the performance of multicat test.

  It's true. In fact, we put the limitation/performance target of network multicast as 1000 M/bits during the test, the desired line speed is 1000 * 1024 * 2/8 = 125 M/B. As long as bandwidth real is greater than 50 M/B, we consider the NECK.

• VSAN interrogator multicast with igmp snooping active requirement

  When the switch is "igmp snooping" enabled, I do not understand why VSAN Articles and book require a mrouter or interrogator to define.

  Nexus switch igmp debugs and newspapers, VSAN will send members unsolicited reports every 90 seconds at the address of the group 224.1.2.3 and 224.2.3.4. It is without worrying whether or not we have configured for VLAN mrouter or igmp snooping querier. As long as VSAN is coded so as to send the membership periodically reports, should we not there so a "questioning" on the virtual LAN to send Group/General requests.

  As in my tests, I have no igmp mrouter or defined vlan VSAN and VSAN applicant all communicate are good with igmp snooping enabled (default for NX - OS).

  DIA-N5K-02 # show ip igmp snooping-history of events vlan. I have 10.16.127.111

  2014, August 5, 21:31:46.915356 igmp [3465]: [3917]: SN: < 127 > v2 received report: Group 10.16.127.111 on Eth1/21 224.2.3.4

  2014, August 5, 21:31:46.915011 igmp [3465]: [3917]: SN: < 127 > v2 received report: group 224.1.2.3 10.16.127.111 on Eth1/21

  2014, August 5, 21:30:17.037868 igmp [3465]: [3917]: SN: < 127 > v2 received report: Group 10.16.127.111 on Eth1/21 224.2.3.4

  2014, August 5, 21:30:17.037606 igmp [3465]: [3917]: SN: < 127 > v2 received report: group 224.1.2.3 10.16.127.111 on Eth1/21

  2014, August 5, 21:28:46.950748 igmp [3465]: [3917]: SN: < 127 > v2 received report: Group 10.16.127.111 on Eth1/21 224.2.3.4

  2014, August 5, 21:28:46.950273 igmp [3465]: [3917]: SN: < 127 > v2 received report: group 224.1.2.3 10.16.127.111 on Eth1/21

  2014, August 5, 21:27:17.073420 igmp [3465]: [3917]: SN: < 127 > v2 received report: Group 10.16.127.111 on Eth1/21 224.2.3.4

  2014, August 5, 21:27:17.073042 igmp [3465]: [3917]: SN: < 127 > v2 received report: group 224.1.2.3 10.16.127.111 on Eth1/21

  2014, August 5, 21:25:46.985909 igmp [3465]: [3917]: SN: < 127 > v2 received report: Group 10.16.127.111 on Eth1/21 224.2.3.4

  DIA-N5K-02 # show ip igmp snooping vlan 127

  IGMP Snooping information vlan 127

  IGMP snooping active

  Search mode: IP

  Optimized multicast Flood (OMF) disabled

  Applicant IGMP no

  Switch-interrogator disabled

  Tracking explicit IGMPv3 is enabled

  IGMPv2 leave quickly disabled

  Delete report IGMPv1/v2 on

  Disabled removal of IGMPv3 report

  Removing local groups link activated

  Detection of router port using PIM Hello, queries IGMP

  Number of ports in the router: 1

  Number of groups: 2

  Function of vPC VLAN enabled

  Active ports:

  Eth1/21 Eth1/22 Eth1/23 Eth1/27

  Ros

  DIA-N5K-02 # show ip igmp snooping groups vlan 127

  Type: S - static, D - dynamic, R - port of the router, F - Fabricpath base port

  Group VLAN address worm Type port

  127   */*                -    R     Po1

  127 224.1.2.3 v2 D Eth1/22 Eth1/21 Eth1/23

  Eth1/27

  127 224.2.3.4 v2 D Eth1/21 Eth1/22 Eth1/27

  Eth1/23

  We found that for some providers of network switch, an interrogator is required when you enable IGMP snooping. If espionage works without an interrogator for your specific provider, then this is ideal. In all cases, we recommend that you consult your provider for their specific recommended configuration of switch of layer 2 multicast switch.

• Multicast Testing tool for windows

  Hi guys,.

  I'm looking for a multicast of MS Windows based downloadable free tool that uses the multicast stream source for listeners connected through the test of test lab MPLS service provider.

  Help, please

  Thanks in advance,

  Anil.

  Hi Anil,

  I saw that iperf has multicast capabilities, so you can give it a try.

  Concerning

  Dan

• Performance tests of VSANS: what is the attitude of your cluster under actual stress?

  Our config node VSAN

  Reference Dell R730xd

  768 GB OF RAM

  PERC730

  ability level: 21 x SAS disks 1, 2 TB

  the caching level: 3 x SANDISK SX350-3200

  dedicated NIC for VSAN 10GE

  We encounter problems while driving a large number of virtual machines on our cluster which themselves generate a large number of the IOPS / s (similar to IOmeter).

  We are faced with questions:

  -guests are cranked out vcenter

  -vmx files have been corrupted

  This does not mean that if we only use one virtual machine host to generate the load. In this case, these are our observations:

  % Of reading

  Write %

  The KB block size

  Oustanding IO

  GB of file size

  # Workers

  % Randomly

  Sequential %

  FTT

  # Components

  read a book

  IOPS / total s

  Totl Mbps

  AVG ms Lat

  45

  55

  4

  5

  10

  4

  95

  5

  1

  6

  0

  8.092

  33,15

  0.6

  45

  55

  4

  5

  10

  4

  95

  5

  1

  12

  0

  10.821

  44,33

  0.46

  45

  55

  4

  5

  10

  4

  95

  5

  1

  6

  100

  12.611

  51.65

  0.39

  45

  55

  4

  5

  10

  4

  95

  5

  1

  12

  100

  11,374

  46,59

  0.43

  45

  55

  4

  64

  10

  4

  95

  5

  1

  12

  100

  29.746

  121,8

  2.15

  100

  0

  4

  64

  10

  4

  100

  0

  1

  12

  0

  50.576

  207,1

  1.26

  100

  0

  4

  64

  10

  4

  100

  0

  1

  12

  100

  50.571

  207,1

  1.26

  100

  0

  0.512

  64

  10

  4

  0

  100

  0

  1

  100

  67.330

  34,47

  3.8

  If these numbers seem very good, Don't they?

  From our point of view, it would be ok if latency increases when you increase the load with multiple virtual machines. But as already out doubled over our cluster becomes broken after increasing the number of virtual machines at some point.

  We are currently testing with a subset of four nodes VSAN with the above config. In this group, we were able to turn on 187 load generation machines before that three of the four hosts entered the State "is not responding.

  We wonder if anyone has also made large performance tests. If so, we would be very interested in comments you make. Maybe this helps us to find the fault of our construction.

  Kind regards

  Daniel

  With the help of VMware we discover that the problems we face are caused by virtual machines gen load... each vm is generating 2048 ios in circulation... so with 187 VM on the cluster, we unreal ios in circulation (382976... when I remember the graphic observation of our cluster it would reduce up to 13000 per host) which we will never see in real world scenarios. With this high traffic vsan 6.1 ios has problems and vmware is working on a solution... maybe with 6.2 and qos that is resolved?

  A few other changes:

  -a newer driver for our network cards intel x 710

  -new driver and firmware (beta version of dell) for our h730 perc controller

  and some advanced settings:

  esxcfg-advcfg - 100000/LSOM/diskIoTimeout s

  esxcfg-advcfg - s 4/LSOM/diskIoRetryFactor

  esxcfg-advcfg - s LSOM/2047/heapSize (with these parameters, we were able to create 3 starts - with 7 metal discs and 1 flash device - for each host)

• vSan on home test environment

  Hello

  Does anyone know if vSAN requires special hardware? I have 3 guests in my home test, with processors AMD FX and MSI mainborads. I understand that vSAN requires flash drives, one on each host at least, but before you buy, I want to know if vSAN requires special hardware. I don't think he does, but some comments from someone who has tested is very appreciated. Thank you!

  I guess the answer is Yes, it requires a special material commodities.  In a production environment, you should stick to the VMware HCL, who moved to prepared knots instead of individual pieces.

  For a test environment to home and want only to test the functionality, you can either fake a spinning HD SSD or nested ESXi.  Check Cormac, Duncan, and Lam for how to do this.  Thank you, Zach.

• Recommendation for size VMDK for IO Analyzer test vsan

  Hello

  Is there a size Analyzer IO Vmware VMDK recommendation? When deploy you from the model of the test is performed on the second disc of 100 MB. I saw a few recommendations to remove this second disc and add a great new.

  Analyzer 01-100MB on disk, I get 12000 IOPS / s, 45 Mbit/s on a random test of 4k_70% read_80%.

  Analyzer 02-100 GB drive, I have 1300 iops, 5 Mbps on a random test of 4k_70% read_80%.

  Caching is disabled on all drives and controllers (HP P420i). 3 x HP DL380 (200SSD, 5 x 900 10kSAS).

  I'm surprised the difference that both drives should reach the 200 GB ssd. Or analyzers from writing to disks are formatted with any FS. Obviously, the second machine with the largest disk not reading so that lower iops cache hits is but I don't know why, as are big enough SSDS.

  Thank you

  Remember, VSAN is all about having your work in cache, so that most of the readings reached the level of flash cache.

  It seems that monitor 1 with 100MB is mainly in the cache, while 2 parser is not.

  We are working on a guideline that the working set of an application is usually 10% of its capacity. It is sometimes more, sometimes less is, but 10% is a generally accepted rule.

  I don't know how the Analyzer has been configured, but it is the workload it contains repeated data profiles, while some cached data can be read?

  If this is not the case, this may mean that you are simply fill the SSD write buffer, it disabling the disk rotation when it reaches a particular threshold, then fill again. This means that you are bound by disk magnetic performance and get very little by way of benefit from caching layer of VSAN.

  Things to look at:

  1. is Analyzer using 100 GB just like its working set, and cela will reflect your production workloads? If this isn't the case, reduced to a size that is the reflection of a real production working together? If most of your VMS use 100 GB VMDK, consider a set of 10 GB size work.

  2 Analyzer uses patterns to repeat? If not, configure it to do this, or use another tool of reference that makes.

  HTH

  Cormac

• Separate VSANS / Mgmt / Vmotion traffic on different switches

  Hello

  I want to build a hybrid Cluster VSAN 4 knots (6.x).

  I have 2 x 10GE switches dedicated for Taffic VSAN

  also 2 * 1GBE switches for management / VM / Vmotion traffic

  Each host has 2 10 GbE NIC, 1 uplink for each of 10GBE switches

  Each host also has 4 * rising 1GBE, 2 for each of the switches 1GBE

  My idea is to use 10GBE just for VSAN traffic (separate DVSWitch, an asset, a standby) on each 10GBE switch

  Also to use 2 Ports on the management traffic (separate DVSWitch, an asset, a standby) on each 1GBE switch

  And use 2 Ports on traffic VM (separate DVSWitch, an asset, a standby) on each 1GBE switch

  VMotion traffic would be on the same rising as management, but active / standby vice versa

  Question: is - this possiuble / useful to connect vmotion for 10 GbE uplink ports (active standby vice versa VSAN traffic)

  I appreciate any useful comment on my scheduled install (I have no boy networking)

  Couple thoughts.  You can run several vKernels to VSAN and vMotion (allowing one on each switch).  To VSAN, use of VLANS / subnets (one on each switch offers you a pleasant has / B space) while vMotion must have all the vkernel on the same subnet 2 ideally layer.  This allows for maximum reliability, in theory faster failover and access flow.  This also has the advantage of if your cluster is not big (bigger that say 48 ports) you can avoid having multicasting, leaving the switch (usually requires more quarrels with the cats of network) as each switch TOR will have its own VSAN network.    Then use the NIOC for butterfly and protect the traffic between them.  Now the NIOC is not as effective as SR - IOV (but its good enough) to 100% and you will maximize your investment 10 Gbps without swamping the things.

  • Network management interface VMkernel = explicit order of Fail-over = active P1 / P2 ensures 10.1.1.1/24 VLAN 100
  • vMotion VMkernel - an explicit order of Fail-over = interface = active P1 / P2 ensures 10.1.2.1/24 VLAN 101
  • vMotion VMkernel-B interface = explicit Fail-over order active = P2 / P1 ensures 10.1.2.2/24 VLAN 101
  • Machine virtual Portgroup = explicit Fail-over order = active P1 / P2 ensures 10.1.2.1/22 VLAN 102
  • Virtual VMkernel-A SAN interface = explicit order of Fail-over = active P1 / P2 in standby (or not use) * 10.1.3.1/24 VLAN 103
  • Virtual interface of SAN VMkernel-B = explicit Fail-over order active = P2 / P1 Eve (or not use) * 10.1.4.1/24 VLAN 104

  In this case, VLAN, 100, 101 and 102 will be on all switches.

  * 103 and 104 could be configured to only exist on each switch (has / B isolation, failover do not switch on the value and set up on both) or exist on both (and use standby) as described.  This design will focus on maintaining the communications host-to-host on the same switch (decreases complications with multicasting and reduces its lag time as VSAN traffic does not have to jump to another switch unless you run out of switch ports, but now with dense 40Gbps past using 10 Gbps break out in theory you could hit the limit of 64 nodes on a single switch).

  I'm curious of anyone thoughts on just disable the failover and forcing them to each core sticking to its switch (and accepting loss of communication) on this vKernel in the event of a switch failure.  I want to do some tests with both laboratory and to test the failover of the switch/path between both of these configurations (compared to a configuration unique vkernel).

  However, some people prefer a 'simpler' configuration if (and I'm not opposed to that).

  Duncan drawn active passive failover configuration with of the vKernel unique for each host.

  In theory not being not not as dependent on the NIOC for insulation of storage should help the latency for the short bursts it takes to NIOC launch design active active vs.

  Control IO SAN and virtual network

  • Network management interface VMkernel = explicit order of Fail-over = active P1 / P2 ensures
  • vMotion VMkernel interface = explicit Fail-over order = active P1 / P2 ensures
  • Machine virtual Portgroup = explicit Fail-over order = active P1 / P2 ensures
  • SAN VMkernel virtual interface = explicit order of Fail-over = P2 active / standby P1

• VSAN involved environmental: nested network

  Hi all

  I build a test VSAN env in nested environment, and I'm stuck with an error that seems to be not new with the implementation of VSAN.

  

  I checked the various blogs and website and solution seems to be

  • Option 1 - Disable IGMP Snooping. Now, this will allow to all the multicast traffic through, but if the only traffic is VSAN, then this should be a significant amount of traffic and should be safe to use.
  • Option 2 - interrogator IGMP snooping to configure. If there is another multicast traffic and you fear that disabling IGMP snooping could open the network until a stream of multicast traffic, then this is the preferred option. Cisco in detail How to do this here.

  But these virtual ESX in nested environments host is connected via vSwitch and there is no physical NIC conntect

  Any help is very appreciated.

  Thank you

  Kapil

  If you run nested, you configured the promiscuous mode and forged passes?

  http://www.virtuallyghetto.com/2013/11/Why-is-promiscuous-mode-forged.html

• Topic for sticky thread: Multicast

  Hi all

  I have just a question which is completely driving me crazy. I googled 50 + pages, I searched this whole forum, and after reading almost a hundred articles I can't find a 'factual' or 'Clear' answer to this question with the evidence:

  On the NEW routers Linksys, such as the V1 WRT610N with latest firmware or the WRT310N V1.

  "Security," there is the "Filter multicast" option

  Should it be "Checked = Enabled" to BLOCK or ALLOW, through the network multicast traffic.

  I ask, because apparently there was a lot of typo and the misconceptions, because the previous Linksys models such as the 2006 BEFSR41v4 router, was typoed: "Filter Multicast" was actually supposed to be "enable multicast Passthrough.

  This still applies today, and with all other Linksys routers?

  The reason is because it is grammatically incorrect and very misleading so it can be written as "Filter Multicast" because the word "Filter" means to remove this option by 'Vérification', you'd be 'Prevent' multicast traffic. That would make sense because all other options on the Security page, works this way.

  However, from what I've seen, people have gotten mixed results and the conclusion is often to "Activate" "Filter multicast" to "Allow" traffic, but that makes no sense!

  This is a VERY important subject, because it solved once and for all, put an end to tons of questions of others.

  It comes

  Xbox 360 games questions

  Vista Media Extender

  UPNP Gaming

  PS3 network problems

  Media sharing

  Hello

  IPTV

  ITunes and many others.

  Thank you all very much for any idea that you can provide, also if possible how can I test to make sure that it is indeed "allowing" multicast once understand us this?

  Please help me answer this question once and for all...

  When the option is enabled, "Filter Multicast" will filter multicast traffic, i.e. it does not.

  When the option is disabled, the router will run the multicast daemon and it will deliver multicast traffic.

  Most people see no difference, because they get all multicast traffic. I guess the most likely situation where you will see the multicast traffic is when you use your ISP's IPTV service. All general internet traffic will not be multicast and she will not even pass through your ISP network...

• Multicast flooding all the VLAN Ports

  I have three streaming servers.  We have an affair rising gigabit and the other two 100Mbps devices.  Gigabit streaming chassis produced ~ 230Mbps video stream. The other two 100 Mbps devices generate on 50Mbps each.  All water courses are intended to let the N1548 switch via a 10GE interface.  It works, but video streams multicast are also fed to all other ports on the same VLAN.  For this reason, + 200 Mbps gigabit traffic unit is saturating the other two aircraft video 100Mbps of FastEthernet NIC.  I tried to put all the ports in a single protected switchport group, but this did not seem to prevent floods multicast to peer between ports assigned to the same protection group number.  Is there a way to prevent this multicast traffic to broadcast to all ports in the same VLAN, specifically servers independent multicast group IP multicast?  I understand that protected switchport may provide unicast and broadcast on protection and not multicast.

  You can consult the document "efficient video Distribution networks with Multicast: IGMP Querier and PIM - DM" downloaded here: "".

  http://en.community.Dell.com/TechCenter/networking/p/guides-legacy#PC

  Scenario 2 starting on page 12 shows the steps on how to configure multiple video servers on different VLANS and there are a few test commands to validate the configuration (table 4).

  I hope this helps.

  B

• Music of blocking (MOH) and multicast CUCM 8.5

  Hello guys!

  Blocking music works very well when I disable multicast on media from the regions resources group (I currenlty have 4 configured regions) but when I activate the use multi-cast for the Audio of the Ministry of HEALTH (if at least one resource MOH multicast is available) option on each resource media, then between parts group works one-way MOH and vice versa (TOH) waiting. Multicast routing is enabled on all interfaces of routers and lass. You will appreciate any suggestion guys.

  Thanks in advance!

  Hello

  ++ Ok, when IP phoen in the site of manin places the call on hold with phone IP B remote site. What is the relationship of the region with phone IP B and Mozambican server.

  ++ If you use unicast MOH doesn't works for the same call flow?

  + What is the relationship region phone IP B / Server Mozambican, if it's something else that g711, can you check IPVMS service parameter is enabled for the respective codec.

  ++ Which is the number of conifgured of hops in the server of the Ministry of HEALTH?  If you think that it is less than the real hops between the default GW of IP phone B and CCM, increase.

  ++ And if nothing is done, we need to isolate if the problem is with the CCM or network (multicast problems), so do a test call, put call on hold/resume and get the detailed logs of the CCM and newspapers of IPVMS of the Callmanager to all nodes in the cluster.

  The phone IP phone remotely B is there an Ip Communicator, if so (make sure to disable the optimize for BW) and check.

  HTH,

  Murali

• Multicast through remote access VPN (ASA)

  Hi all

  I have an ASA 5505 I want to use a device that will end for several clients for rheumatoid arthritis in so they can access our TEST network.  The problem is that the net TEST provides streams video multicast clients need to see.  I currently do with a Windows Server and Clients through L2TP.  How can I do this with the ASA instead?  I know, IPSEC does support multicast... can do something?

  Hello

  You can check the related multicast L2TP below mentioned example link...

  http://www.Cisco.com/c/en/us/support/docs/security/ASA-5500-x-series-NEX...

  Concerning

  Knockaert

• sparse mode multicast edge WAN router

  Hi all

  I hope you well. I have a problem of multicast and I was wondering if anyone can help. We have several remote sites connected to the router end hub and some sites are unable to receive multicast streams. We use the pim sparse mode with RP static. whenever I try to do a ping to a lan switch multicast stream I get

  (*, G) entry with correct PR, RPF nbr and the incoming interface on LHR but oil mill interface iam get none. on the last jump (LHR) router I see interface OIL as pointing as the igmp join query comes from LAN to lan.

  I see (ip lan of the CBC, G) entry in the table mrouting but interface new entrant is pointing to lan, no details of PR and outbound interface is WAN.

  can you advise or point iin right direction. Thank you

  concerning

  M

  You will see that because the switch acts as a source for a stream multicasting if your WAN router it records correctly.

  If you try to troubleshoot multicast on the remote receiver then the above is not a valid test and tells you nothing.

  What is the address of muilticast group you are trying to reach the remote site?

  That shows the mroute for this group address table?

  Jon