scan 219.5
result
192.168.219.5 (EFIR-STORAGE) (*NIX)
Round Trip Time (RTT): <10 ms
Time To Live (TTL): 64
NetBios èìåÃ*Ã* (5) EFIR-STORAGE <00> UNIQUE - Workstation service
EFIR-STORAGE <03> UNIQUE - Messenger service
EFIR-STORAGE <20> UNIQUE - File server service
WORKGROUP <00> GROUP - Domain name
WORKGROUP <1E> GROUP - Browser Service Elections

MAC: 00:E0:81:80:0A:28 (TYAN COMPUTER CORP.)

scan 219.4
192.168.219.4 (EFIR-STORAGE) (*NIX)
Round Trip Time (RTT): <10 ms
Time To Live (TTL): 64
NetBios èìåÃ*Ã* (5) EFIR-STORAGE <00> UNIQUE - Workstation service
EFIR-STORAGE <03> UNIQUE - Messenger service
EFIR-STORAGE <20> UNIQUE - File server service
WORKGROUP <00> GROUP - Domain name
WORKGROUP <1E> GROUP - Browser Service Elections
EFIR-STORAGE

MAC: 00:E0:81:80:0A:28 (TYAN COMPUTER CORP.)

ok - i have bound0 and bound1 with identical MAC address !!!!!
my switch is crazy

have same idea?????