When adding a new element to a map with 11 elements, the following url is generated:

http://10.73.28.3/sysmap.php?favobj=sysmap&favid=0&sysmapid=21&action=save&selements=%7B%22150%22%3A%20%7B%22selementid%22%3A%20%22150%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210373%22%2C%20%22elementtype%22%3A%20%220%22%2C%20%22iconid_off%22%3A%20%22245%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22Ampliacion_planta_1%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22200%22%2C%20%22y%22%3A%20%22300%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22Ampliacion_planta_1%22%2C%20%22elementName%22%3A%20%22Ampliacion_planta_1%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22151%22%3A%20%7B%22selementid%22%3A%20%22151%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210388%22%2C%20%22elementtype%22%3A%20%220%22%2%0AC%20%22iconid_off%22%3A%20%22244%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22PB_eComm%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22800%22%2C%20%22y%22%3A%20%22200%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22PB_eComm%22%2C%20%22elementName%22%3A%20%22PB_eComm%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22152%22%3A%20%7B%22selementid%22%3A%20%22152%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210384%22%2C%20%22elementtype%22%3A%20%220%22%2C%20%22iconid_off%22%3A%20%22245%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22Host2%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22300%22%2C%20%22y%22%3A%20%22500%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%%0A22%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22Host2%22%2C%20%22elementName%22%3A%20%22Host2%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22153%22%3A%20%7B%22selementid%22%3A%20%22153%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210386%22%2C%20%22elementtype%22%3A%20%220%22%2C%20%22iconid_off%22%3A%20%22245%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22Silo1%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22200%22%2C%20%22y%22%3A%20%22400%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22Silo1%22%2C%20%22elementName%22%3A%20%22Silo1%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22157%22%3A%20%7B%22selementid%22%3A%20%22157%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210390%22%2C%20%22elementtype%22%3A%20%220%22%2C%20%22iconid_o%0Aff%22%3A%20%22244%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22PBofLogP0Amp%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22700%22%2C%20%22y%22%3A%20%22100%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22PBofLogP0Amp%22%2C%20%22elementName%22%3A%20%22PBofLogP0Amp%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22158%22%3A%20%7B%22selementid%22%3A%20%22158%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210399%22%2C%20%22elementtype%22%3A%20%220%22%2C%20%22iconid_off%22%3A%20%22245%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22Seguridad%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22200%22%2C%20%22y%22%3A%20%22200%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%0A%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22Seguridad%22%2C%20%22elementName%22%3A%20%22Seguridad%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22159%22%3A%20%7B%22selementid%22%3A%20%22159%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210375%22%2C%20%22elementtype%22%3A%20%220%22%2C%20%22iconid_off%22%3A%20%22245%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22PBMuelles%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22700%22%2C%20%22y%22%3A%20%22500%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22PBMuelles%22%2C%20%22elementName%22%3A%20%22PBMuelles%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22160%22%3A%20%7B%22selementid%22%3A%20%22160%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210369%22%2C%20%22elementtype%22%3A%20%220%22%2C%2%0A0%22iconid_off%22%3A%20%22244%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22PBOfiP0%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22800%22%2C%20%22y%22%3A%20%22300%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22PBOfiP0%22%2C%20%22elementName%22%3A%20%22PBOfiP0%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22161%22%3A%20%7B%22selementid%22%3A%20%22161%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210371%22%2C%20%22elementtype%22%3A%20%220%22%2C%20%22iconid_off%22%3A%20%22245%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22PBOficinas1%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22800%22%2C%20%22y%22%3A%20%22400%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%%0A3A%20%220%22%2C%20%22label_expanded%22%3A%20%22PBOficinas1%22%2C%20%22elementName%22%3A%20%22PBOficinas1%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22162%22%3A%20%7B%22selementid%22%3A%20%22162%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2210401%22%2C%20%22elementtype%22%3A%20%220%22%2C%20%22iconid_off%22%3A%20%22245%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22HOST1%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22300%22%2C%20%22y%22%3A%20%22100%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22HOST1%22%2C%20%22elementName%22%3A%20%22HOST1%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22163%22%3A%20%7B%22selementid%22%3A%20%22163%22%2C%20%22sysmapid%22%3A%20%2221%22%2C%20%22elementid%22%3A%20%2222%22%2C%20%22elementtype%22%3A%0A%20%221%22%2C%20%22iconid_off%22%3A%20%22249%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22label%22%3A%20%22HOSTSDRipunt%22%2C%20%22label_location%22%3A%20%220%22%2C%20%22x%22%3A%20%22518%22%2C%20%22y%22%3A%20%22418%22%2C%20%22url%22%3A%20%22%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22iconid_maintenance%22%3A%20%220%22%2C%20%22label_expanded%22%3A%20%22HOSTSDRipunt%22%2C%20%22elementName%22%3A%20%22HOSTSDRipunt%22%2C%20%22image%22%3A%20null%2C%20%22selected%22%3A%20null%7D%2C%20%22471698681%22%3A%20%7B%22selementid%22%3A%20%22471698681%22%2C%20%22elementtype%22%3A%20%221%22%2C%20%22elementid%22%3A%20%2225%22%2C%20%22elementName%22%3A%20%22HOSTCPD%22%2C%20%22iconid_off%22%3A%20%22249%22%2C%20%22iconid_on%22%3A%20%220%22%2C%20%22iconid_unknown%22%3A%20%220%22%2C%20%22iconid_maintenance%22%3A%20%220%22%2C%20%22iconid_disabled%22%3A%20%220%22%2C%20%22label%22%3A%20%22HOSTCPD%22%2C%20%22label_expanded%22%3A%20%22HOSTCPD%22%2C%20%22label_l%0Aocation%22%3A%20%220%22%2C%20%22x%22%3A%20%22473%22%2C%20%22y%22%3A%20%22246%22%2C%20%22url%22%3A%20%22%22%2C%20%22html_objid%22%3A%20null%2C%20%22selected%22%3A%20null%2C%20%22image%22%3A%20null%2C%20%22new%22%3A%20%22new%22%2C%20%22sysmapid%22%3A%20%2221%22%7D%7D&links=%7B%7

And apache brings this error

Request-URI Too Large

The requested URL's length exceeds the capacity limit for this server.

We have already tried the following configuration in the web server configuration:

LimitRequestLine 81900
LimitRequestFieldSize 40940

But it didn't work either.

Is this a known issue? Is there any kind of workaround?

Thanks in advance.