交换机三层转发vlanif
switch1
switch2
swtich3
switch1上ping switch3上的地址
<AGG_CE6855_1>ping -a 10.10.16.254 10.10.30.249 PING 10.10.30.249: 56 data bytes, press CTRL_C to break Reply from 10.10.30.249: bytes=56 Sequence=1 ttl=254 time=1 ms Reply from 10.10.30.249: bytes=56 Sequence=2 ttl=254 time=1 ms Reply from 10.10.30.249: bytes=56 Sequence=3 ttl=254 time=1 ms --- 10.10.30.249 ping statistics --- 3 packet(s) transmitted 3 packet(s) received 0.00% packet loss round-trip min/avg/max = 1/1/1 ms <AGG_CE6855_1>ping -a 10.10.16.254 10.10.26.249 PING 10.10.26.249: 56 data bytes, press CTRL_C to break Request time out --- 10.10.26.249 ping statistics --- 1 packet(s) transmitted 0 packet(s) received 100.00% packet loss <AGG_CE6855_1>
ping -a 10.10.16.254 10.10.30.249
经过switch2 会把报文发送给所有vlan id =1030的端口
ping -a 10.10.16.254 10.10.26.249 根据默认路由，
会把报文发送给所有vlan id =1030或1030的端口，而不是Vlanif1026
JG05-SW40GEto10GE_CE6855>dis ip routing-table Proto: Protocol Pre: Preference Route Flags: R - relay, D - download to fib, T - to vpn-instance, B - black hole route ------------------------------------------------------------------------------ Routing Table : _public_ Destinations : 11 Routes : 12 Destination/Mask Proto Pre Cost Flags NextHop Interface 0.0.0.0/0 Static 60 0 RD 10.10.29.254 Vlanif1029 Static 60 0 RD 10.10.30.254 Vlanif1030
swtich2添加vlanif 1026
[*JG05-SW40GEto10GE_CE6855-vlan1026]quit [*JG05-SW40GEto10GE_CE6855]int vlanif1026 [*JG05-SW40GEto10GE_CE6855-Vlanif1026]ip address 10.10.26.250 24 [*JG05-SW40GEto10GE_CE6855-Vlanif1026]commit [~JG05-SW40GEto10GE_CE6855-Vlanif1026]quit
<AGG_CE6855_1>ping -a 10.10.16.254 10.10.26.249 PING 10.10.26.249: 56 data bytes, press CTRL_C to break Request time out --- 10.10.26.249 ping statistics --- 1 packet(s) transmitted 0 packet(s) received 100.00% packet loss <AGG_CE6855_1> <AGG_CE6855_1> <AGG_CE6855_1>ping -a 10.10.16.254 10.10.26.250 PING 10.10.26.250: 56 data bytes, press CTRL_C to break Reply from 10.10.26.250: bytes=56 Sequence=1 ttl=254 time=1 ms Reply from 10.10.26.250: bytes=56 Sequence=2 ttl=254 time=1 ms Reply from 10.10.26.250: bytes=56 Sequence=3 ttl=254 time=1 ms Reply from 10.10.26.250: bytes=56 Sequence=4 ttl=254 time=1 ms --- 10.10.26.250 ping statistics --- 4 packet(s) transmitted 4 packet(s) received 0.00% packet loss round-trip min/avg/max = 1/1/1 ms <AGG_CE6855_1>
还是不通 ping -a 10.10.16.254 10.10.26.249
原理是switc3上连接swith的端口的pvid是1026
[~10.10.26.249]int 25GE1/0/1 [~10.10.26.249-25GE1/0/1]dis this # interface 25GE1/0/1 port link-type trunk port trunk pvid vlan 1026 port trunk allow-pass vlan 2 to 4094 device transceiver 10GBASE-FIBER port mode 10G # return [~10.10.26.249-25GE1/0/1]port trunk pvid vlan 1 [*10.10.26.249-25GE1/0/1]commit [~10.10.26.249-25GE1/0/1]
<AGG_CE6855_1>ping -a 10.10.16.254 10.10.26.249 PING 10.10.26.249: 56 data bytes, press CTRL_C to break Reply from 10.10.26.249: bytes=56 Sequence=1 ttl=254 time=1 ms Reply from 10.10.26.249: bytes=56 Sequence=2 ttl=254 time=1 ms Reply from 10.10.26.249: bytes=56 Sequence=3 ttl=254 time=1 ms Reply from 10.10.26.249: bytes=56 Sequence=4 ttl=254 time=1 ms --- 10.10.26.249 ping statistics --- 4 packet(s) transmitted 4 packet(s) received 0.00% packet loss round-trip min/avg/max = 1/1/1 ms <AGG_CE6855_1>
[root@bogon ~]# ping -I 10.10.16.81 10.10.26.249 PING 10.10.26.249 (10.10.26.249) from 10.10.16.81 : 56(84) bytes of data. 64 bytes from 10.10.26.249: icmp_seq=1 ttl=253 time=0.683 ms 64 bytes from 10.10.26.249: icmp_seq=2 ttl=253 time=0.775 ms 64 bytes from 10.10.26.249: icmp_seq=3 ttl=253 time=0.920 ms ^C --- 10.10.26.249 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2053ms rtt min/avg/max/mdev = 0.683/0.792/0.920/0.102 ms [root@bogon ~]#
swtich2删除vlanif 1026
