In windows

https://kb.netgear.com/19863/Ping-Test-to-determine-Optimal-MTU-Size-on-Router

In mikrotik

https://wiki.mikrotik.com/wiki/Manual:Tools/Ping

In linux

http://muzso.hu/2009/05/17/how-to-determine-the-proper-mtu-size-with-icmp-pings

IN cisco

https://supportforums.cisco.com/discussion/10786936/cisco-extended-ping-sweep-command

http://www.mogami.com/e/cad/db.html

How to Disable SELinux Temporarily or Permanently in RHEL/CentOS 7/6

https://supportforums.cisco.com/discussion/10513706/setting-boot-system-commands

show boot

TRUE link

http://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/41845-192.html

Here is an example:

Switch#show boot

2955#configure terminal
2955(config)#boot system flash:c2955-i6q4l2-mz.121-13.EA1.bin

Howto upgrade IOS on a 3750 switch stack

http://www.circleid.com/posts/20110407_top_public_dns_resolvers_compared

http://www.dslreports.com/forum/r15879342-how-can-limit-rate-in-cisco-switch-3750

https://www.experts-exchange.com/questions/23731353/How-to-perform-rate-limiting-on-Cisco-Catalyst-3750-switches.html

https://lists.gt.net/cisco/nsp/81146

!-- Enter the trunking encapsulation as either isl

3512xl(config-if)#switchport trunk encapsulation isl


3512xl(config-if)#switchport trunk encapsulation dot1q


3512xl(config-if)#switchport trunk allowed vlan all


3512xl(config-if)#exit




http://www.cisco.com/c/en/us/support/docs/lan-switching/inter-vlan-routing/14976-50.html

How to Enable Telnet and SSH on Cisco Router and Switches?

http://www.five-ten-sg.com/mapper