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发表于 2017-6-22 15:14:56
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找了两台stacked C3850...
show version 里的 information
Base Ethernet MAC Address : 0c:11:67:b9:13:00
Base Ethernet MAC Address : 00:af:1f:1b:10:00
Switch 1的端口MAC, 就是 “Base Ethernet MAC Address” + 端口ID.
Te1/0/1 address is 0c11.67b9.1301 (bia 0c11.67b9.1301)
Te1/0/2 address is 0c11.67b9.1302 (bia 0c11.67b9.1302)
Te1/0/3 address is 0c11.67b9.1303 (bia 0c11.67b9.1303)
Te1/0/4 address is 0c11.67b9.1304 (bia 0c11.67b9.1304)
Te1/0/5 address is 0c11.67b9.1305 (bia 0c11.67b9.1305)
Te1/0/6 address is 0c11.67b9.1306 (bia 0c11.67b9.1306)
Te1/0/7 address is 0c11.67b9.1307 (bia 0c11.67b9.1307)
Te1/0/8 address is 0c11.67b9.1308 (bia 0c11.67b9.1308)
Te1/0/9 address is 0c11.67b9.1309 (bia 0c11.67b9.1309)
Switch 2 的端口MAC 也是一样的算法。
Te2/0/1 address is 00af.1f1b.1001 (bia 00af.1f1b.1001)
Te2/0/2 address is 00af.1f1b.1002 (bia 00af.1f1b.1002)
Te2/0/3 address is 00af.1f1b.1003 (bia 00af.1f1b.1003)
Te2/0/4 address is 00af.1f1b.1004 (bia 00af.1f1b.1004)
Te2/0/5 address is 00af.1f1b.1005 (bia 00af.1f1b.1005)
Te2/0/6 address is 00af.1f1b.1006 (bia 00af.1f1b.1006)
Te2/0/7 address is 00af.1f1b.1007 (bia 00af.1f1b.1007)
vlan 1 及其他的vlan MAC, 算法规则我没能看出来,vlan 1 和native vlan 的SVI MAC 是一样的,是“Base Ethernet MAC Address”+ 47. (我这台C3850是24号的交换机,vlan5 做的是native vlan, 如果是48口的,可能这个数字有变化,但是这应该是思科生产时就定义好的)
vlan 1 Hardware is Ethernet SVI, address is 0c11.67b9.1347 (bia 0c11.67b9.1347)
vlan 2 Hardware is Ethernet SVI, address is 0c11.67b9.1377 (bia 0c11.67b9.1377)
vlan 5--native vlan Hardware is Ethernet SVI, address is 0c11.67b9.1347 (bia 0c11.67b9.1347)
vlan 10 Hardware is Ethernet SVI, address is 0c11.67b9.1346 (bia 0c11.67b9.1346)
vlan 21 Hardware is Ethernet SVI, address is 0c11.67b9.1368 (bia 0c11.67b9.1368)
vlan 22 Hardware is Ethernet SVI, address is 0c11.67b9.1376 (bia 0c11.67b9.1376)
vlan 23 Hardware is Ethernet SVI, address is 0c11.67b9.1344 (bia 0c11.67b9.1344)
vlan 24 Hardware is Ethernet SVI, address is 0c11.67b9.1341 (bia 0c11.67b9.1341)
所以你问的三者的关系,应该都与show version内的"Base Ethernet MAC Address "有关而做的加法。究竟加多少,怎么加,应该是思科针对不同的硬件设定的不同的参数。 |
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2017-6-22 15:14:56
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