[PC1] ping 192.168.10.20 -c 1 -i 500 -w 1000
ping 192.168.10.20 -c 1 -i 500 -w 1000

84 bytes from 192.168.10.20 icmp_seq=1 ttl=64 time=1.000 ms

VPCS> 

[PC1] show arp
show arp

00:50:79:66:68:02  192.168.10.30 expires in 108 seconds 
00:50:79:66:68:01  192.168.10.20 expires in 115 seconds 

VPCS> 

[SW1] brctl delif br0 eth1; brctl addif br0 eth1; brctl showmacs br0
brctl delif br0 eth1; brctl addif br0 eth1; brctl showmacs br0
port no	mac addr		is local?	ageing timer
  1	00:50:79:66:68:00	no		   6.43
  3	00:50:79:66:68:02	no		  12.95
  1	02:42:1c:a3:43:00	yes		   0.00
  1	02:42:1c:a3:43:00	yes		   0.00
  2	02:42:1c:a3:43:01	yes		   0.00
  2	02:42:1c:a3:43:01	yes		   0.00
  3	02:42:1c:a3:43:02	yes		   0.00
  3	02:42:1c:a3:43:02	yes		   0.00
/ # 
/ # 

[PC1] show arp
show arp

00:50:79:66:68:02  192.168.10.30 expires in 105 seconds 
00:50:79:66:68:01  192.168.10.20 expires in 112 seconds 

VPCS> 

[SW1] brctl showmacs br0
brctl showmacs br0
port no	mac addr		is local?	ageing timer
  1	00:50:79:66:68:00	no		   9.91
  3	00:50:79:66:68:02	no		  16.43
  1	02:42:1c:a3:43:00	yes		   0.00
  1	02:42:1c:a3:43:00	yes		   0.00
  2	02:42:1c:a3:43:01	yes		   0.00
  2	02:42:1c:a3:43:01	yes		   0.00
  3	02:42:1c:a3:43:02	yes		   0.00
  3	02:42:1c:a3:43:02	yes		   0.00
/ # 
/ # 

[PC1] ping 192.168.10.20 -c 1 -i 500 -w 1000
ping 192.168.10.20 -c 1 -i 500 -w 1000

84 bytes from 192.168.10.20 icmp_seq=1 ttl=64 time=0.973 ms

VPCS> 

[SW1] brctl showmacs br0
brctl showmacs br0
port no	mac addr		is local?	ageing timer
  1	00:50:79:66:68:00	no		   5.16
  2	00:50:79:66:68:01	no		   5.16
  3	00:50:79:66:68:02	no		  22.77
  1	02:42:1c:a3:43:00	yes		   0.00
  1	02:42:1c:a3:43:00	yes		   0.00
  2	02:42:1c:a3:43:01	yes		   0.00
  2	02:42:1c:a3:43:01	yes		   0.00
  3	02:42:1c:a3:43:02	yes		   0.00
  3	02:42:1c:a3:43:02	yes		   0.00
/ # 
/ # 