REDE OSCILANDO COM MUITOS EQUIPAMENTOS

Boa tarde a todos,

Tenho uma rede configurada com 17 switch dell modelos: 1524, 1148t, 1548 e x1052 .

Meu firewall é um sophos x310 ligado no switch 1524 que vai uma fibra para outro 1524 e distribui para 4 prédios.

Tenho 150 desktop e no wifi usando unifi ubiquiti 80 antenas conectado 700 equipamentos.

Quando está conectado 500 equipamento tudo funciona mas passou de 620 a rede inteira começa a oscilar, os switchs começa a perder pacote e os equipamentos no wifi tambem começa a perder pacote.

Não sei mais o que fazer.

Segue minha configuração de um dos switch, praticamente todos estao configurado iguais.

!Current Configuration:
!System Description "Dell EMC Networking N1524, 6.7.0.4, Linux 3.6.5, Not Available"
!System Software Version 6.7.0.4
!
configure
vlan 10,12,14,23,26,30,50-51
exit
vlan 10
name "servidor"
exit
vlan 12
name "office"
exit
vlan 14
name "wifiadm"
exit
vlan 23
name "cameras"
exit
vlan 26
name "guest"
exit
vlan 30
name "pupil"
exit
vlan 50
name "AmericaNet"
exit
vlan 51
name "Tellium"
exit
slot 1/0 1 ! Dell EMC Networking N1524
sntp unicast client enable
sntp server "pool.ntp.org" priority 3
clock timezone -3 minutes 0
stack
member 1 1 ! N1524
exit
interface vlan 1
bandwidth 10000000
exit
interface vlan 10
ip address 10.2.1.149 255.255.255.0
ip directed-broadcast
bandwidth 10000000
exit
interface vlan 12
bandwidth 10000000
exit
interface vlan 14
bandwidth 10000000
exit
interface vlan 23
bandwidth 10000000
exit
interface vlan 26
bandwidth 10000000
exit
interface vlan 30
bandwidth 10000000
exit
ip default-gateway 10.2.1.1
username "admin" password a18c118f3d7feb0429c9026f6bc2da77 privilege 15 encrypted
ip ssh server
spanning-tree priority 0
application install SupportAssist auto-restart start-on-boot
application install hiveagent start-on-boot
!
interface Gi1/0/1
description "LINK-AMERICANET"
switchport access vlan 50
exit
!
interface Gi1/0/2
description "LINK-AMERICANET-FW-1"
switchport access vlan 50
exit
!
interface Gi1/0/3
description "LINK-AMERICANET-FW-2"
switchport access vlan 50
exit
!
interface Gi1/0/4
description "LINK-TELLIUM"
switchport access vlan 51
exit
!
interface Gi1/0/5
description "LINK-TELLIUM-FW-1"
switchport access vlan 51
exit
!
interface Gi1/0/6
description "LINK-TELLIUM-FW-2"
switchport access vlan 51
exit
!
interface Gi1/0/7
switchport general pvid 10
switchport general allowed vlan add 10
switchport general allowed vlan remove 1
switchport access vlan 10
exit
!
interface Gi1/0/8
switchport general pvid 10
switchport general allowed vlan add 10
switchport general allowed vlan remove 1
switchport access vlan 10
exit
!
interface Gi1/0/9
switchport general pvid 10
switchport general allowed vlan add 10
switchport general allowed vlan remove 1
switchport access vlan 10
exit
!
interface Gi1/0/10
switchport general pvid 10
switchport general allowed vlan add 10
switchport general allowed vlan remove 1
switchport access vlan 10
exit
!
interface Gi1/0/11
switchport general pvid 10
switchport general allowed vlan add 10
switchport general allowed vlan remove 1
switchport access vlan 10
exit
!
interface Gi1/0/12
switchport general pvid 10
switchport general allowed vlan add 10
switchport general allowed vlan remove 1
switchport access vlan 10
exit
!
interface Gi1/0/13
switchport general pvid 10
switchport general allowed vlan add 10,23 tagged
switchport general allowed vlan remove 1
switchport access vlan 23
exit
!
interface Gi1/0/14
switchport mode trunk
switchport access vlan 10
exit
!
interface Gi1/0/15
switchport mode trunk
switchport access vlan 10
exit
!
interface Gi1/0/16
switchport mode trunk
switchport access vlan 10
exit
!
interface Gi1/0/17
switchport mode trunk
switchport access vlan 10
exit
!
interface Gi1/0/18
switchport mode trunk
switchport access vlan 10
exit
!
interface Gi1/0/19
switchport mode trunk
switchport access vlan 10
exit
!
interface Gi1/0/20
switchport mode trunk
switchport access vlan 10
exit
!
interface Gi1/0/21
switchport mode trunk
switchport access vlan 10
exit
!
interface Gi1/0/22
switchport mode trunk
exit
!
interface Gi1/0/23
switchport mode trunk
exit
!
interface Te1/0/1
description "##LINK_10.2.1.151##"
switchport mode trunk
switchport general pvid 10
switchport general allowed vlan add 10,12,14,23,26,30 tagged
switchport general allowed vlan add 1 tagged
switchport access vlan 10
exit
!
interface Te1/0/2
description "##LINK_10.2.1.105##"
switchport mode trunk
switchport general pvid 10
switchport general allowed vlan add 10,12,14,23,26,30 tagged
switchport general allowed vlan add 1 tagged
switchport access vlan 10
switchport trunk native vlan 10
exit
!
interface Te1/0/3
description "##LINK_10.2.1.121##"
switchport mode general
switchport general pvid 10
switchport general allowed vlan add 10,12,14,23,26,30,51 tagged
switchport general allowed vlan add 1 tagged
switchport access vlan 10
exit
!
interface Te1/0/4
description "##Link_FIREWALL##"
switchport mode trunk
switchport general pvid 10
switchport general allowed vlan add 10,12,14,23,26,30 tagged
switchport general allowed vlan add 1 tagged
switchport access vlan 10
switchport trunk native vlan 10
exit
snmp-server engineid local 800002a203e4f004c97edf
snmp-server community "public" ro
support-assist
server "default"
proxy-ip-address "10.2.1.58" port "443" username "admin" password "7" cc

Me ajudem por favor.