Speed limit on BVI Interface (ASR9001) - several customers

Similar Questions

• vSphere virtual integrated cpu speed limit?

  Hello

  I have a group of four vSphere 4.0u1 guests with many free resources (4-core nehalem 2.27 GHz + 32 GB RAM for each host). There is a virtual machine (linux Debian 5, 64-bit) with one vCPU. Though this VM would have more speed CPU (trigger alerts on the CPU usage), it becomes ever more than 2 GHz. In the resource pool, I tried to add several actions (up to 8000), but without success

  Is there a speed limit of vCPU in vSphere so that the computer only vay to increace pover of VM is to add an another vCPU? Or am I missing something basic, where can I put the maximum vCPU for all my virtual machines? I think vCPU shloud be scalable in DURATION up to 4x2.27GHz less what console service needs, while the other usingVMs of lesscpu must be migrated to other hosts by the Drs Is is it true or not?

  Thanks in advance,

  David

  Hello

  You'll never be more than the power of one heart for each vCpu. At any time, each vCpu is attached to a physical core. The ESX Planner do not aggregate the power of multiple processors to "emulate" a super processor.

  In your configuration, will have no more than 2.27 GHz each vCpu.

  Franck

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  Have you checked the WLan performance using different WiFi standards?
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• BVI Interface inaccessible since the addition of multiple SSID

  Announcement to the community for the first time.

  I have a simple HomeLAN which consists of a Cisco router for series 800-> switch PoE Cisco3560-> Cisco Aironet 1131AG Access Point.

  Everything works well for a while in which I had a simple port to "change the access mode" configured on the switch facing the AP and one SSID on the access point that is configured in stand-alone mode (without controller).

  My provider has enabled IPv6 on my broadband connection and I started to reconfigure my installation this afternoon to allow this.

  I decided to run only a bunk Dual LAN and a separate native IPv6 only test LAN for proof of concept.

  With this in mind, I changed the switch port to the access point to a "mode trunk switch' using simple dot1q encapsulation. I have also consulted the post helps very https://rscciew.wordpress.com/2014/05/24/multiple-ssid-configurations-on... after finding in this community post on the topic of multiple SSID https://supportforums.cisco.com/discussion/10899511/how-broadcast-2-ssid...

  I have now two SSID broadcasting (we will call double stack and ipv6 only for the sake of the argument). The SSID double stack uses VLAN 2 and 1 bridge, while the SSID only ipv6 uses 6 VLAN and bridge 6.

  I must stress at this point that my router (where I want to layer 3 for the two LANs gateways) I have DHCP, DHCPv6 and SLAAC configured on relevant VLANs.

  I seem to be the 2 VLAN trunking of properly and I can see the SSID broadcast in my house. I can connect to the SSID (authenticate and form an association as seen in 'show the dot11 association'), but I don't get an IPv4 address or IPv6 assigned to all clients (I tried Mac OS x, iOS, Android, and Windows phone). Furthermore, I can't ping the IP bvi1 of the AP - that is the element that is annoying me more that I must console to the AP to make any changes at all.

  Here is an overview of my AP configuration, with relevant parts removed for safety...

  dot11 syslog
  !
  dot11 said ipv6 only
  VLAN 6
  open authentication
  shared authentication
  authentication wpa key management
  MBSSID-guest mode
  WPA - psk ascii 7
  !
  dot11 said double stack
  VLAN 2
  open authentication
  shared authentication
  authentication wpa key management
  MBSSID-guest mode
  WPA - psk ascii 7

  interface Dot11Radio0
  no ip address
  no ip route cache
  !
  the cipher mode vlan 6 encryption tkip aes - ccm
  !
  the ciphers of vlan 2 encryption tkip aes - ccm mode
  !
  has declared ipv6 only
  !
  such double stack
  !
  MBSSID
  root of station-role
  Bridge-Group 1
  Bridge-group subscriber-loop-control 1
  Bridge-Group 1 block-unknown-source
  No source of bridge-Group 1-learning
  unicast bridge-Group 1-floods
  Bridge-Group 1 covering-disabled people
  !
  interface Dot11Radio0.2
  encapsulation dot1Q 2
  no ip route cache
  Bridge-Group 2
  the bridge-group subscriber-loop-control 2
  Bridge-Group 2 block-unknown-source
  No source of bridge-Group 2-learning
  No extinction unicast by bridge-Group 2
  Bridge-Group 2 covering-disabled people
  !
  interface Dot11Radio0.6
  encapsulation dot1Q 6
  no ip route cache
  Bridge-Group 6
  the bridge-group subscriber-loop-control 6
  Bridge-Group 6 block-unknown-source
  No source of bridge-Group 6-learning
  No bridge Group 6 unicast-flooding
  Bridge-Group 6 covering-disabled people
  !

  interface FastEthernet0
  no ip address
  no ip route cache
  automatic duplex
  automatic speed
  Bridge-Group 1
  No source of bridge-Group 1-learning
  Bridge-Group 1 covering-disabled people
  !
  interface FastEthernet0.2
  encapsulation dot1Q 2
  no ip route cache
  Bridge-Group 2
  No source of bridge-Group 2-learning
  Bridge-Group 2 covering-disabled people
  !
  interface FastEthernet0.6
  encapsulation dot1Q 6
  no ip route cache
  Bridge-Group 6
  No source of bridge-Group 6-learning
  Bridge-Group 6 covering-disabled people

  Bridge IRB

  1 channel ip bridge

  interface control2
  MGMT AP Interface Description
  address 192.168.1.6 IP 255.255.255.0
  no ip route cache

  IP default-gateway 192.168.1.50

  As you can see I can not ping the gateway of AP - I would be very grateful if someone could point me in the right direction with regard to what I'm doing wrong here?

  Thank you

  Mick

  OK means your AP is to have IP vlan2:

  Do it like this and try again:

  !

  interface Dot11Radio0.2
  encapsulation dot1Q 2
  encapsulation dot1Q 2 native
  Group 1 bridge
  Bridge-Group 2
  !
  interface FastEthernet0.2
  encapsulation dot1Q 2
  Group 1 bridge
  encapsulation dot1Q 2 native
  Bridge-Group 2

  !

  Or alternatively, you can delete the name native dot11radio0 and fa0.2. (It should also work without it), but be sure that for vlan 2 you have bridge Group 1.

  Concerning

  Remember messages useful rates

• VM CPU speed limit - why?

  In our environment, I have been asked to limit the MHz available to virtual machines with multiple vCPUs.  I got it because it will prevent a VM with bad software or process broke to consume multiple cores on the host.

  My thought is that this is not serious if we limit the speed.  If a virtual machine will enter 2000 MHz or 1000 MHz, anyway it has a heart on the host.  If my host has power 3000 MHz and my VM cannot take 1000 MHz of this power (because it is his limit), it still has the heart.  I don't think that the 2000 MHz extra on this kernel is available to other virtual machines until the virtual machine with the wrong process restores the kernel.

  With this reasoning, I should remove the limits and let the VMs system run.  A bad process that will break the VM will impact the host even if the MHz is limited or not.

  Am I right or not?  Someone can explain better, or is there a documentation I can read and use as justification?

  1000 MHz or 2000 MHz, anyway that there the heart on the host.

  VM do not have access to material that's a software emulated time slice.

  You can set limits of pools, give you a limit to the pool, the virtual machine shares the pool if one of these virtual machines exceeds this limit of pool, this will not affect ANY site of vm this pool.

  By the way... even if an application is crazy... This is whence the priorities, you can make this virtual machine a lower priority such as the other virtual machines may take precedence over the CPU.

• Host Link link Guest speed speed limit

  Hello..

  It is a Question: is somehow the link speed of the host not to limit the speed of the link of a guest (VM) access the HOST?

  Example:

  What happens if we have a host that is equipped with a 100 Mbit NETWORK card and a guest who has a virtual 1 GB card NIC (Intel Pro 1000 thingy). OF COURSE the guest CANNOT reach the external network (Physics) with the speed of 1 GB or vice versa since its limited through the physical NETWORK adapter of the host...

  BUT... The Question now is... WHAT the maximum performance of such a guest if we want fair access network-HOST Services itself? It is a local connection, I guess. What speed can be achieved here?

  Background:

  I have here a host FAT on Ethernet 100Mbit, 16Gig RAM, 2 x Intel XEON CPUs, Debian 5.0.1 and VMWARE 2.0.1 4core. My guest inside is also Debian 5.0.1 with a 100mbit NETWORK card PCnet32 virtual thingy. My host can read data from local raid with about 120 MB/s (mega bytes/s). My guest (using iSCSI to enter the Volumes on the host and so using the internal virtual network) can read about 11.2 MB/s of the host Diskdrives.  It made me courious, since ~11.2MB/s is on a 100mbit NIC maximum flow. But it is a BIG difference on performance. BTW: the same client can access data files of local virtual disk of GIS (vmdk) by AT LEAST 120 MB/s (local caching disabled). So, where is the limit and the bottleneck?

  Any ideas/suggestions?

  Axel Werner wrote:

  And now you tell me... that the Networking Performance between guest and host VMWARE here is this effect limited to 100 Mbps, because I don't meet with the host NIC (which takes place in)

  100 Mbit)?

  Yes.

  But COMMENTS <>network HOST my NIC speed would not be limited if I'd put the guest in a virtual network "HOST ONLY"?

  Yes.

  If Yes... WOW! But... what would look like if you have Clients who want to access the Guest VM as a server files to a configuration/solution? you will need some sort of routing/bridging again.

  N °

  Oh... would be 2 NICs in this guest so be a good solution? like: < USER-BRIDGED-LAN >--< GUESTVM > [NIC2]-< HOSTONLYNETWORK >

  Yes.

  If the GUEST VM by wire-speed, users can access and GUESTVM access HOST of Services at the speed of the cpu. Is this correct?

  I didn't say CPU speed, I said, it depends on the speed of the CPU. But in general, Yes.

  If you found this information useful, please consider awarding points to 'Correct' or 'Useful' responses Thank you!!

  AWo

  VCP / vEXPERT 2009

• Speed limit of the network in the Virtual Machine

  I used to use a command in a VM's VMX file in VMWare Workstation 6 which allowed me to adjust the speed of the network in bits per second.  For example, I could put the speed of the network down to a modem of 28.8 or less if I wanted to.  I don't remember the VMX command to implement and I can't find my documentation, even if I know for sure, I used the feature in the past to solve the problems that occur only during slow connections (I've not used a team).  It's a manual change of the VM VMX file and it worked very well.  Anyone know which command I'm looking for?

  Maybe ethernet0.txbw.limit. Check out this link too.

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