12.1(12C)EA1新特性：


SSH支持：

crypto key generate rsa

ip ssh authentication-retries 3

ip ssh timeout30

AutoQos，仅EI特性集可使用:
int fa0/24

auto qos voip cisco-phone

int g0/1

auto qos voip trust

可以通过Radius对802.1x的端口分配VLAN：

switch端：

aaa new-model

aaa authen dot1x default group radius

aaa author network default group radius

radius-server host 10.1.1.1 auth-port 1912 key hehehe

int fa0/1

dot1x port-control auto

radius server端：


[64]Tunnel-Type=VLAN

[65]Tunnle-Medium-Type=802

[66]Tunnel-Private-Group-ID= VLAN NAME



dot1x可以和port security同时配置在同一端口上：
aaa new-model

aaa authen dot1x default group radius

aaa author network default group radius

radius-server host 10.1.1.1 auth-port 1912 key hehehe

int fa0/1

dot1x port-control auto

dot1x multiple-hosts

switchport mode access

switchport port--security

switchport port--security max 10

switchport port--security mac-add sticky

switchport port--security violation protect

DOT1X可以和Voice VLAN配置在同一端口上：
aaa new-model

aaa authen dot1x default group radius

aaa author network default group radius

radius-server host 10.1.1.1 auth-port 1912 key hehehe

int fa0/1

dot1x port-control auto

switchport mode access

switchport access vlan 10

switcport voice vlan 25

spanning-tree portfast

12.1(13)EA1的新特性：

支持SPAN；

支持PVRST+(rapid的STP)

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