NIC and load balancing

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• Double connection ISP and load balancing

  Hi all

  I have the Cisco 2911 router k 9/s with 3 GB ports. I have also two different ISP connections, all have two different available bandwidth (one is asymmetrical, else a symmetrical).

  What I want to achieve is to ensure the balance of Nice load between two ISPS for all PCs behind the NAT device.

  What I know so far, it's that I can use CEF or PfR/REL. For both of this technology, I have some doubts.

  CEF: distributes the network load between the two connections based on sessions (which is good, because I strongly to use tools like Skype or Lync for audio/video conversations). However, what is happening, when I get on one of the ISP connections broadband bandwidth max? He's going to choke for 50% of the connections? Or it will detect the use of bandwidth and to force using second ISP?

  PfR/REL: as far as I understood it resolves my concern regarding the use of the connection, but what happens to the session? Should it also be based on this mechanism? As you know that it is very important for audio/video connections.

  Are there other tools that can provide these load balancing? I know DAB, but I don't want to decide manually, where each service (e.g. http or ssh) will have to go. I'm looking for something more automated.

  Thanks in advance for any help.

  Piotr

  Hello

  I assume that you have a static route for the subnet 213.192.65.0/24 on top of the output and with the combination of order

  network default IP 213.192.65.105 213.192.65.105 IP address is installed as a default gateway. What is the #2 ISP?

  If so, it explains why he always goes on ISP2 only.

  http://www.Cisco.com/en/us/Tech/tk365/technologies_tech_note09186a0080094374.shtml#flagging

  Just remove the config:

  Noneip default-network 213.192.65.105

  Noneip default-gateway 213.192.65.105

  Then again check the routing table:

  SH ip route

  Hope it helps.

  Best regards
  Akim

• The order of failover and load balancing

  Hello

  I have the following scenario. An ESXi with 4 Gbps vmnic. The questions are:

  (1) if I have a group of ports configured for 'Route based on the original virtual Port code' in the policy of balancing load, and for the same port group I the option button 'Override switch failover command"checked, where I set up 3 of the active adapters vmnic, as well as the other vmic remaining as unused adapter, the ESXi uses the policy that I have configured (in this case 'Route based on the original port code') between the three vmnic load balancing marked as active? Or he uses them in the order that they appear in the section active cards?

  (2) Suppossed, I configured the four physical switch ports in an etherchannel group to use 'Route based on the IP hash' load balancing policy. In this situation, then I configured for a certain group of port to only used two active adapters and two others as unused? In this case, ESXi should balance the load using the method hash IP but only in two active adapters? Or it is a misconfigiuration and I should not configure my nic teaming in this way?

  (3) the official setup guide says "NOTICE on IP requires the physical switch be configured with etherchannel. For all other options, etherchannel must be disabled. ». How can I I configured my virtual network, if I have a few groups of political ports based on the hash of the IP to use load balancing and another uses 'Route based on the original port code. This is the case when I for example have two management ports using the same vSwitch with four vmnic (where they are configured as an Etherchannel in the physical switch). I would port one or several groups for virtual machines that use the IP of the hash method of balancing the load and vmkernel ports por management uses only a single adapter active with no back and as "based on the source port ID" load balancing as best practices said.

  Now, the four vmnic is the same for all traffic. The physical switch ports must be configured in an etherchannel group because certain groups of ports will use the method of IP hash, but others are not. The configuration guide I said SHOULD NOT use etherchannel if I won't use the hash IP method, but I'LL use it, but only in groups of one or more ports.

  Maybe I do not share the same vmnic from this situation.

  Finally, it's a philosophical question. What is the difference between 'The route based on the source port ID' and the 'road based on the source MAC Hash' load balancing policy? What is the purpose of the second? It is assumed that if I had two different MAC address in a virtual machine, it would be because I had two different virtual cards inside the virtual machine, which would be connected to two different port ID in the vSwitch, I can use the first strategy (based on the original port code). In other words, which would be the case where I had the traffic entering the same vSwitch but port ID with different source MAC address, so I should chose the method to distinguish the Source MAC address load balancing traffic?

  Thank you.

  Guido.

  (1) as long as you override vmnic only and don't change the policy for this group of ports, he uses the policy configured at level vSwitch and use the selected interface 3 with this policy

  (2) it should work, I don't think it's a problem for the switch receive packets on a subset of the aggregation. I do not think that Etherchannel is supported (IIRC, it is a Cisco proprietary protocol, VMware only supports LACP passive, which corresponds to the Port channel world Cisco.) Trouble me if I'm wrong!)

  (3) I think that's all right, as I have explained in 2), there is no special negotiations with the consolidation of VMware, the important thing only I know is to configure the port on the side of the switch channel if you decide to use the IP hash (that will lead to important questions)

  4) (self labeled) I think it may differ in some cases individuals, as when the operating system use the same MAC address for both NICs (aggregation in-vm) or if you advertise several MAC address for the same network card (ESX in a VM for example would make for its VM). Such cases differently affect this setting.

  That is the right question, and I'm curious to know if someone wants to develop on it!

• ESXi - NIC teaming/load balancing

  If I use two network cards on the back of my ESXi server that provide load balancing or is it just for the failover?
  
  Each card NETWORK must have its own IP address?
  
  I have to manually team network cards or is it an automatic process?
  Or ESXi provides only the load balancing, as appropriate...?
  
  If one of my virtual machines use it of full 1 Gigabit, another VM connection will use the other NETWORK adapter connected?
  
  

  To add to the reply by Dave - it's technically not not balancing load even if it is called VMware - the best description is load balancing - type three methods Load Balansing ESXi offers are:

  1. Port according to ID - this the method by default when you have 2 or more physical NIC connected to a virtual switch. The VM traffic is realized on a physical NETWORK card based on the VMs virtual port ID and is incremented in the style of round robin. So if you have 2 NICs physical network, the first drop of will traffic VMs that the first NIC, the second VM shuts down to the second NIC, third comes out first NETWORK card and operating system on - host ESXi does not resemble the traffic so if VMs 1,3,5 are heavy network users they will go on the same NETWORK adapter even if the second NETWORK card can be totally unused
  2. Address based MAC - based similar to port, but the physical NETWORK adapter is selected according to the MAC address of virtual machines
  3. IP hash database - the physical NETWORK adapter is selected based on the starting and destination IP address - so if a virtual machine connect to several IP addresses that traffic will be disttibuted on all physical network cards - note this will require LACp be configured on the physical spend this ost ESXi connects to

• Network of twinning with Port trunks to support the host ESX VShere 4 with several NIC for load balancing across a HP ProCurve 2810 - 24 G

  We are trying to increase production of our ESX host.

  ESX4 with 6 NIC connected to HP Procurve 2810 - 24G 2 ports; 4; 6; 8; 10 and 12.

  The

  grouping of parameters on ESX is rather easy to activate, however, we do not know

  How to configure the HP switch to support above connections.

  Pourrait

  someone please help with a few examples on how to seup the HP switch.

  Help will be greatly appreciated as we continue to lose tru RDP sessions

  disconnects.

  Best regards, Hendrik

  Disabling protocols spanning-tree on the Procurve ports connected to the ESX host is going to promote a recovery more rapid port. Similarly, running global spanning tree is not recommended if you mix some VLAN iSCSI and data in the same fabric (i.. e. you do not want a STP process to hang storage IO). Spanning tree on your switches, look PVST (or Procurve BPMH) to isolate the STP VLANs unique events.

  In regard to the load balancing is, by default (route based port ID) value algorithm requires less overhead on the ESX hosts.  You may not use LACP on the Provurve the lack of facilities LACP ESX. You must use "route based on the IP hash" sideways ESX and 'static trunks' on the side of Procurve. Unless you have specific reasons why your network need loads this configuration, I'd caution against it for the following reasons:

  (1) IP hash requires thorough inspection of packages by the ESX host, increasing CPU load as load package increases;

  (2) the static configuration puts switch physics rigid and critical ESX host port mapping. Similarly, groups of ports all will fail as the Procurve batteries for management only and won't be on switches 802.3ad circuits Group (i.e. all ports of a group of circuits must be linked to a single switch) - this isn't a limitation of the port ID routing;

  (3) K.I.S.S. love port ID mix of port ID, beacon probe and failover on the port assignments you will get segregation of the raw traffic without sacrificing redundancy - even through switches.

  I hope this helps!

  -Collin C. MacMillan

  SOLORI - Oriented Solution, LLC

  http://blog.Solori.NET

  If you find this information useful, please give points to "correct" or "useful".

• DBMS_SCHEDULER and load balancing works

  Hi all
  
  I have a question about the DBMS_SCHEDULER jobs package.
  
  We handle about 100000 records in a package and it takes a lot of time.
  If we intend to divide the 100000 records in 5 batches of 20000 each and treat them at the same time.
  
  For this we intend to schedule 5 jobs using the DBMS_SCHEDULER package.
  These 5 jobs will be subject both to the database.
  
  Now the question is, if we submit the 5 jobs at the same time, will oracle load balancing.
  Suppose that if 5 jobs are treatment and 2 are fine and he finds jobs 3,4,5 are waiting for resources, then these jobs will be kept on hold and it once the tasks 1 and 2 are made, will begin work pending in the queue.
  
  Receive your answer on that.
  
  Thank you
  Madhu K.

  How you treat these records? 100,000 records isn't really a high volume of our days.

  I'm not aware of anything in DBMS_SCHEDULER who will do what you asked, the jobs will run as planned and consume the resources that they require or wait until resources are available.

  By breaking the lot well you will find that your treatment time increases (for example if you have managed to increase the claim within the system), you must identify the bottleneck in the current process before going on the road that you are trying.

  The first step would be to see if there is anything in the process, you can adjust (see what consumes system resources and see if you can make more effective) and go from there. Possibly using AWR/StatsPack, TKPROF, etc... Depending on your version and that you have a license.

• Correct settings to use Smart Connect and load balancing?

  Hi guys

  I have a question, the answer of which I was not able to find explicitly, so I hope a quick fix OK / not OK for you:

  I would use tri-band technology provides the R8000, i.e. to activate Smart Connect / load balancing. Is - it only works Ghzs 5 band, or the router can also connect clients on the 2 Ghz bands?

  If this is true, then I need to give the strip of 2, 4 GHz the SSID the same 5 Ghz band, correct?

  Otherwise, if it only works in the 5 Ghz bands, I could keep the SSID distinguishes?

  Thank you

  Balancing of resources between the two radios. 2, 4 GHz band vs a single radio, the two radio channels in the 5 GHz band.

• Network [vSphere 4.1] load balancing and failover vMotion

  GoodMorning everyone.

  I have some doubts about the configuration of the network for vMotion in vSphere 4.1

  I know that I can activate a single portgroup VMkernel for vMotion on the single host, but can I have this portgroup in a vSwitch with two or more physical NIC attached.

  Currently, I managed to have a vSwtich with vMotion and management of trade wth two NICs (see attachment).

  Both NICs works very well with the recovery for both exchanges.

  I would switch to a vSwitch with multiple network cards and I have some doubts.

  It seems that I could configure it... but the load balancer for vMotion supported on vSphere 4.1?

  And also, have the protgroup of vMotion in a switch with several network cards, is there a way to check what physical nic is currently used by vMotion?

  I am currently under a license from the company.

  Thank you all for your help.

  vMotion for vSphere pre 5 does not support Multi-NIC, in vSphere 5, you can configure several VMKernel enable vMotion and select different Nic Active and load balance between the two vmnic, but unfortunately not in vSphere 4.x

  For the management of ESXi, if you set active on both network adapters, you not to cross any active advantage / standby because it will only use on vmNIC, unless there is still a failure... but 1 vmNIC just because bandwidth is usually not a problem for the ESXi management only.

  So the answer: upgrade to vSphere 5 for multi-nic vMotion and don't worry ESXi management as an active NETWORK card is more than enough bandwidth,.

  Here's a YouTube on the Multi-NIC vMotion http://www.youtube.com/watch?v=7njBRF2N0Z8 configuration

• Client based in 12 G load balancing

  We have a JDBC configuration against an address scan with client load balancing enabled.

  Example:

  JDBC:Oracle:Thin:@(Description=(LOAD_BALANCE=on)(Address=(Protocol=TCP)(Host=xxxxxxxxxxxx.de)(port=xxxx))(CONNECT_DATA=(service_name=XXXXXX)))

  What I understand of Diference between Client-side and Server Load Balancing If you do not use the server load balancing, you can bypass by connecting the service that identifies a particular node of RAC name.

  
  

  My question is, if you have a connection pool object this configuration and if the name service maps node to goes down, what happens to the connection connection pool?

  
  

  Issue 1) Don't scan address switches to the available according to the name of the service node, then the JDBC driver on the client must file all embusked connections and reconnect the available node? or is all the agnostic client failure of node on and all the old connections available in the pool are available for use?

  
  

  
  

  The client side or server balancing side basically works for the same purpose. The difference is that you do not have all the customers to reconfigure then change something in the environment, such as adding or removing a node such as the side server.

  Answer your question...

  If you mean the shared server architecture by connection pool, the shared server session connected to node 1 will die and everyone shares this session should log. Failover is not automatic, you must specify the failover clause in the JDBC or TNS connect string:

  TEST_TAF =

  (DESCRIPTION =

  (ADDRESS = (PROTOCOL = TCP)

  (HOST = rac - scan.example.com) (PORT = 1525))

  (CONNECT_DATA =

  (SERVICE_NAME = test)

  (FAILOVER_MODE = (TYPE = SESSION) (METHOD = Basic))

  ) )

  Or if you use failover and load balancing services you set failover described below:

  for 12 c: srvctl $ add orcl db-test - oel6vm1 favorite-available oel6vm2 - tafpolicy BASE - failovermethod SESSION service service - failoverretry 5 - failoverdelay 60

  for 11g: $ srvctl add service d orcl if test - r oel6vm1 - oel6vm2 BASIC EI SESSION m - z 5 AW 60

  Was what you mean?

• View connection load balancing servers

  I want to install 2 view of connection on different cluster servers and load balance their. Is this possible? I use this time notice 4.6, but can I upgrade to version 5, as appropriate. I am currently only run 1 server now and I would like to add another if possible to reduduncy.

  This can be done easily, but you will need a method to provide the balance of the charge, as the view that only in native mode.    Video related herein exceeds at some point, http://communities.vmware.com/docs/DOC-14974of load balancing.

• NIC teaming + with leaves HP VirtualConnect and Cisco load balancing

  Hello

  I configure ESX infrastructure running on the blades HP (c7000 enclosure), VirtualConnect and Cisco 3750 switches for the uplink. My network configuration is based on the HP VirtualConnnect Cookbook, scenario 11.

  On the ESX Server, I configured a vSwitch with two NICs grouped. Each card can see a different network of VirtualConnect. Each VC network has active SmartLink.

  Each network of VirtualConnect is associated with two ports on a Bay of VC. These two ports are the uplinks in Cisco 3750 switches. Cisco switches are configured in a pile, and each port associated with the VC network is configured with LACP.

  Here are the facts:

  -Each network (Host A and host B) is properly configured for the LACP Protocol, in other words, the links are shown as active/active in the VC Manager.

  -Communication of ESX is good.

  -Failover and failback function OK.

  The problem: I can't get the load balancer to work. All virtual machines use a single bear. I tried different algorithms on the server ESX (source port ID, mac, IP hash hash) and the configuration of the equivalent from Cisco.

  I have attached a diagram of the physical network, but also the setting to ports.

  What Miss me? Thank you very much

  Pablo

  Because you want to create technically not a channel in an ESX perspective, you do want to use the hash of the IP.  If ESX attempts to send traffic through the two network cards, the cisco switch should drop this package as part of its loop avoidance algorithms.  You should be able to check that out in the switch port statistics.  You should not use the switch port ID.

  Not sure about the promiscuous mode.  Who do not have any account, as far as load balancing is concerned, unless the portgroup was not properly inherit the vSwitch properties?

  -KjB

  VMware vExpert

• Policy on NICs 1 Gb load balancing

  I use 6 x 1 GB NIC on the blades.  I have 2 NICs on board and 4 network cards provided by a single Mezzanine Card.  I have chosen a strategy of load balancing.  In view of the provision below, is there a reason to use load teaming instead of road based on the source port ID-based? I am allowed to use the load to team up if I want to but I don't know if there is no reason in this scenario-based:

  On Board 1 - Active MGMT, ensures vMotion

  2-edge - Production assets traffic

  Mez 1 - Active backup traffic

  MEZ 2 - Production assets traffic

  Martin 3 - Active backup traffic

  Mez 4 - Active vMotion, management standby

  If you have a license for LBT, use it. It is the only real policy load balancing that it monitors the load each NIC on a team and balances accordingly if there is an overload in one of the network adapters. Route based on origin Port ID just spreads the VM on the uplink (round robin) and does not care if one of the uplinks is most used and a used sub.

  I recommend using LBT on your Production and perhaps your backup traffic.

• NIC teaming with the IP hash load balancing

  Hi guys

  I have a virtual machine with a VMXNET3 10 Gbps. It is usually have a heavy traffic with a special server and saturate one of my two physical NIC of 1 Gbps in its PortGroup. I want to know what's going to happen if I turn on "NIC Teaming for this portgroup with basic IP hash load balancing". In my case the source IP address and destination are not change so the aggregates of traffic between my two physical network adapters?

  To avoid saturating completely the two 1GbE NIC, it can also be useful to look in charge based on the grouping and the NIOC. It will ensure that the other streams of traffic VM are not crushed by this machine a virtual when it saturates a network card. The disadvantage is that it requires Enterprise Plus licenses (using a dvSwitch).

• Load balancer and the consolidation of NETWORK cards

  Hello

  We recently had to our file VMware Server after a bit nasty failure of his original material.  Since we moved, it mostly worked OK, but we don't get the occational network shares paw when large files are thrown on.

  ESXi host, sure it works use 5Gbit ethernet adapters on the same Virtual Switch.  Looking at the traffic it would seem that all traffic flows in just a single NETWORK adapter and it is not much at all through the others.  Is something that I need to set it up so that it can better load balance between network cards?  Or is it a document anywhere who recommended settings for multiple network cards?

  I found a vDS topic but we have not undertaken more liciencing on most of our servers.

  We run VSphere 4.1 via the Vcentre server.

  Thanks for the help.

  faster4233 wrote:

  What you say makes a little more sense on what I see.  There is very little traffic flowing through other NETWORK cards, but is perhaps because there isn't any real traffic goes to them.  I thought that VMware may use multiple NICs, if it was required that is why I thought I'd see more data on the other.

  Curiosity is anyway that I can combine NICs for more flow using VMware?

  The load balancing, you can achieve with VMware is not a "real" load balancing, this is more a static distribution of traffic in accordance with the policy, you have chosen.

  You use means that according to the virtual switch port ID the vNIC to the host is connected to a specific bear is chosen. This unique vNIC traffic will use this bear as long as this bear does not fail. In this case the guests more with vNIC, you have the better are used Teddy.

  Other policies can be better for other scenarios. For example, 'Hash IP' uses the source IP address and target to choose a teddy bear. It is a good policy for a server with a vNIC single file and many different communication partners. The 'Source Port' policy route all traffic through a teddy bear so that 'Hash IP' policy would use many Teddy as not what ID port is used, but the communications partners. And a file server must have many of them, more than it has of vNIC.

  AWo

  VCP 3 & 4

  \[:o]===\[o:]

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• NIC Teaming: ID v-port-based load balancing

  Hey all,.

  According to VMWare ESXi does not support physical host interfaces LACP trunks.  I was told that the NIC teaming feature will allow you to specify which physical interface traffic is pushed through the source IP/VM database.  I was able to locate the NIC teaming settings in load balancing vSwitch properties, but I cannot determine how to set up a specific virtual machine, vNIC or source/destination IP address to use a specific physical NIC

  Can someone tell me how to proceed?  The setting of balancing says "Route based on originating virtual port ID"...  This isn't not always tell me how to assign a virtual interface to a specific physical interface.  Ideally, I would like to specify a destination IP address and a physical interface to use when accessing this IP address.  Simply being able to map a group of virtual machines to use a physical interface (without going through the VM groups on different vSwitches) would do well.

  Any suggestion is appreciated.

  Thank you!

  -Ben

  Intellectual property of hash based mode, 1Gbit/s physics 2 network cards can be effectively combined in 1 2 Gbps link?  Meaning regardless of VM, source/destinaltion IP/network, traffic etc will be shared between the two network cards until they are both is completely saturated?

  No, certainly not. It's like Weinstein explained. The NETWORK card used is based on the source and destination IP.

  You can take a look at VMware Virtual Networking Concepts that explains the different modes in detail.

  Route based on the hash of the IP ... Regularity of the distribution of traffic depends on the number of TCP/IP sessions for unique destinations. There is no advantage for the bulk transfer between a single pair of hosts.

  André