Discuss F5 Networks 301a Exam Topic 6 Question 23

An LTM Specialist is configuring a new virtual server on an LTM device and assigning a SNAT pool that is already is use another virtual server. Both virtual servers use the same pool members to load balance traffic. A maximum of 35,000 users needs to be able to access each virtual server ta any time. The network architecture does NOT allow the backend servers to use the LTM device as a default gateway.

What is the minimum number of SNAT addresses required in the SNAT pool to meet the needs of the virtual servers?

Suggested Answer: A

Both vs share the same snat pool, and both use the same pool member. Then the concurrent number of snatpool will be added. For each VS, there is a maximum of 35,000 users, and those two VSs have a maximum of 70,000 users. The stem did not mention how many connections each user would have concurrently. Calculated with a minimum of 1 connection, then 70,000 connections would be concurrent. One IP can support 65,535 connection. Therefore, at least 2 or more snaptips are required

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12 comments · newest first

Herminia 12 months ago

I’m leaning towards 4, just to be safe.

Anisha 12 months ago

Definitely 2, that's standard for load balancing.

Karan 1 year ago

Wait, can you really use the same SNAT pool for both servers?

Curtis 1 year ago

I think 3 is the right answer, but not sure why.

Yun 1 year ago

You need at least 2 SNAT addresses for 35,000 users.

Maurine 1 year ago

I’m a bit confused about whether the SNAT addresses can be shared between the two virtual servers. Does that mean we might need more than one address per server?

Janey 1 year ago

I think we practiced a similar question where we had to determine SNAT addresses based on user load. If each server needs to support 35,000 users, wouldn't we need at least 2 addresses?

Odelia 1 year ago

I remember something about SNAT pools needing enough addresses to handle concurrent connections, but I'm not sure how to calculate that for two virtual servers.

Filiberto 1 year ago

I vaguely recall that the number of SNAT addresses should be based on the maximum number of users per server. So, if both servers need to support 35,000 users, maybe we need at least 4 addresses?

Virgina 1 year ago

Ah, I see. The problem is that the authentication attempt isn't even showing up in the CPPM Access Tracker. That's interesting. I'd probably check the connectivity between CPPM and any backend directory servers, just to make sure there aren't any issues there.

Aracelis 1 year ago

It's tricky. I thought having an acceptable resolution is pretty basic, so could D actually be less important too?

Pansy 1 year ago

This looks like a straightforward database design question. I'll carefully review the exhibit to determine the relationship between Customer and Order.

F5 Networks 301a Exam - Topic 6 Question 23 Discussion