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Hello and welcome back.

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Still with MLB and now we're going to talk about the supported target types.

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One very important thing to note as as of now that lambda functions as a target is not supported by

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the MLB unlike the MLB.

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This is not supported for the network nightclub balance.

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So let's talk about the supported one target types.

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So what are the support the target type junior configuring a network load balancer two types.

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An easy to instance I.D. So basically the back end or the target groups are going to include or the

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target group in that you're configuring is going to have instances easy to instances references referenced

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or registered by their I.D. to the group or an IP address.

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And if it is an IP address then it can be an IP address of instances honorable yes or they could be

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even on premise removed virtual machines or even remote load balancers firewalls whatever that is if

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the target is pacified by the IP address it can be from one of the following sites arrange like they'll

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be exactly.

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So it could be from the RNC 1918 range the 10 dot 8 1 2016 slash twelve and 1 six 16.

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Or it could be from the artists out of CE 65 98 that 160 for the 0 0 slash 10.

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Or it could be subnets from the VPC for the target group.

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The same thing if it is the same thing like the be the IP address targets can not be public ip addresses

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so they cannot be publicly refutable IP addresses.

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And currently for instance I.D. There are some types instance types that are not supported by the instance

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I.D. and they have to be configured by the IP address like what the C1 S.S. wants easy to see G1 C.G.

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to see R1 one and the rest of the list.

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Of course this will change with time guys.

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So please if you want to know the fine and most accurate one go to the obvious and try to find under

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the MLB what is a supported or the excluded list from being defined by the instance I.D. however you

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have a solution if you had instances from those lists or from those types then you can configure them

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as targeted by the IP address not by the instance i.e. the supported side their blocks enabled the registration

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of the following with a target group the site there blocks that were just configured not the instance

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idea if the resources are addressable by IP address for example a database you can do that on premises

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resources link to yes through direct connect or VPN.

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Also the classic link instances if you have the classic easy two instances for IP target types for the

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ones configured with IP then the NLRB can support 55000 simultaneous connections or this is about 55000

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connections per minute for each unique target IP address and port that you are using to define are this

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number is going to be the same for months and years to come.

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They could be changed based on how it obviously enhances the nodes and the hardware and the easy to

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instance is used for their network load balancer but that gives you an indication that pair target will

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be can support up to 55000 connections per minute port allocation error so what if you go beyond the

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55000 what happens if the conviction rate is much higher than that you would find that there's allocation

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errors port allocation errors that might be surfacing or starting because of that and the solution is

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increase the target.

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So if you increase the targets the number of connections distributed across a larger number of targets

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are going to be less pair target and that's how you fix this problem if you face it and there'll be

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do not support longer target types.

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And as I mentioned this is as of now instances in appeared VPC.

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So if I have instances from a VPC that is paired with a VPC where the NLRB is then they must be registered

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with the IP address target types and not with the instance I.D..

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All right.

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So instance I.D. for the supported instances undressed is all targets by IP address because routing

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for Target that are referenced or off type instance idea for Target using the instance I.D. traffic

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is routed to instances using the primary private IP address.

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Which one was that exactly.

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That's the one on Ethernet net zero.

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How about if I want to routing to a different IP address on a secondary interface if I need one if I

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need to then a reference to instances by the IP address and that's how you can have more than one IP

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on the instance where the the NLRB is going to send traffic to.

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All right.

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So if you are hosting multiple Web sites and you would like them to be to have certificates and all

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that on an easy to instance with the MLB then specify that the target type as IP address and add the

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different IP addresses on the AC to instance if you specify targets using the IP address what happens

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you can route traffic to an instance using any private IP address from one or more network interfaces.

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So even the secondary interface and interface you can do that thing the IP address is different.

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This enables multiple applications on an instance using the same port websites.

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It's the DP port 80.

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Obviously each network interface can have its own security group.

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So we can even have security rules different for each network interface All right so let's take a quick

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break come back and talk about a very important feature of MLB that is not existing for MLB NCLB which

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is the source IP address preservation basically when the client request passes through the MLB in certain

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conditions.

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The same IP address as a source will be passed on to the easy to instance or the back and compute that

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is defined.

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And let's talk about this in the next lecture after the break.

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I'll see you then.

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Thank you.
