arp表与mac表区别
1、arp表是三层设备才有的，如：路由器、主机电脑，arp：地址解析协议，已知目标ip地址来获取目标mac地址。mac表二层设备才有，如交换机。
2、arp表：阐述ip地址与mac地址的对应关系，而mac表：阐述mac地址与接口的对应关系。
3、arp表与mac表的表现形式：
arp表：
IP ADDRESS MAC ADDRESS EXPIRE(M) TYPE INTERFACE ×××-INSTANCE
VLAN/CEVLAN PVC
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192.168.1.1 5189-4801-d0ce I - GE2/0/0 本接口的mac与ip对应
192.168.1.2 3cd5-a382-f47e 13 D-2 GE2/0/0 本接口目标mac与ip对应
192.168.2.1 5189-9201-d0d0 I - GE2/0/1
192.168.2.2 020f-d2e1-b64a 17 D-2 GE2/0/1
192.168.3.1 5489-9801-c0d1 I - GE2/0/2
192.168.3.2 88d2-17ab-17c1 20 D-2 GE2/0/2
192.168.4.1 80fa-24d3-1418 I - GE3/1/2
192.168.5.1 5189-9702-a543 I - Eth-Trunk1
192.168.5.2 5259-8402-b57b 3 D-2 Eth-Trunk1
192.168.6.1 5419-9302-b543 I - Vlanif500
192.168.6.2 0012-5de0-1122 16 DF3 GE3/1/0
-
------------------------------------------------------------------------------
Total:11 Dynamic:5 Static:0 Interface:6
mac表：
MAC ADDR VLAN ID STATE PORT INDEX AGING TIME(s)
0011-5d54-ae4a 200 Learned GigabitEthernet2/1/1 AGING 接口与目标mac对应
020d-e2d1-b24d 12 Learned GigabitEthernet2/1/1 AGING
021d-0ba2-0eb0 11 Learned GigabitEthernet2/1/1 AGING
0529-a29c-85c2 300 Learned GigabitEthernet2/1/3 AGING
0012-5123-349e 13 Learned GigabitEthernet2/2/1 AGING
5421-9701-cd18 2305 Learned GigabitEthernet2/2/3 AGING
83fb-0448-4b51 2306 Learned GigabitEthernet2/2/4 AGING
721d-bdce-3a57 2303 Learned GigabitEthernet2/3/2 AGING
