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Network Engineering : Recent Questions and Answers (Page 4)

Find answers to your questions about Network Engineering or help others by answering their Network Engineering questions.

Using Ethernet cable in SFP+ Port

Can you use an Ethernet cable (Cat6) in a switch's SFP+ port to connect to another switch?...

Asked on 09/30/2021

3 answer

How a wifi AP handle packets

Computers are connected to a wifi AP. The wifi AP is connected to a L2 switch. A server is also conected to this switch. When computers sends packets to the...

Asked on 09/30/2021 by tartopo1

1 answer

Do both sides need to agree on MSS value?

By definition, The TCP Maximum Segment Size (MSS) is the maximum amount of data that a host is willing to accept in a single TCP/IPv4 datagram. And MSS is one...

Asked on 09/30/2021 by ERH7777777

1 answer

What is the purpose of network address?

What is the purpose of network address? (aka subnet address, starting address of each subnet) For example in this network: 192.168.1.0/24 Why we should...

Asked on 09/30/2021 by Microsoft Linux TM

8 answer

What is the point of ARP?

I'm a complete beginner at networking, but if I've understood this correctly, the gist of ARP is: We want to use high level adresses to the highest degree possible but...

Asked on 09/30/2021 by Benjamin Lindqvist

3 answer

Same MAC address on different VLANs

I am facing a situation where on the core network I have around 15k MAC addresses, and on the edge switches (Access Layer), I am finding switches with 27k MAC...

Asked on 09/30/2021 by Gngogh

2 answer

Fortigate: enabling directed broadcast to broadcast conversion on last hop?

I'm not quite certain how to achieve the equivalent of ip directed broadcast with a FortiGate. In this case a FortiGate 60E with FortiOS 5.6.7. So I started to dig...

Asked on 09/30/2021 by Marc 'netztier' Luethi

3 answer

How to connect QSFP+ transceiver with MPO connector and SFP+ transceiver with LC connector?

In data center application, 40G QSFP+ transceivers with MPO connector and 10G SFP+ transceivers with LC connectors are most common transceivers. But, with two different connectors, how can we make...

Asked on 09/30/2021

1 answer

How to use QSFP28 transceiver with 100G datacenter?

Do you have any experience With qsfp28 transceiver on 100g data center? have you ever make 100G QSFP28 to be Used for 40G?100Gb/s QSFP28 IR4 PSM4 (Parallel Single Mode...

Asked on 09/30/2021 by user48791

2 answer

Connecting 2 buildings

If I have 2 buildings connected to each other and they both run to the same ISP, would both buildings need to be connected to a firewall? For the main...

Asked on 09/30/2021

4 answer

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