Впервые столкнулись с необычной ситуацией - в цепочке из 5 DES-3526, подключенных к DES-3200-28, MAC'и соседей стали видны в дефолтном влане вместо прописанного служебного.
Например, 10.90.90.129 подключен к 10.90.90.130.
Код:
...
MAC Address : 00-21-91-7E-27-64
IP Address : 10.90.90.129 (Manual)
VLAN Name : 3051
Subnet Mask : 255.255.254.0
Default Gateway : 10.90.90.1
Boot PROM Version : Build 5.00.011
Firmware Version : Build 6.00.B14
...
10.90.90.129:admin#show vlan
Command: show vlan
VID : 1 VLAN Name : default
VLAN TYPE : static Advertisement : Disabled
Member ports :
Static ports :
Current Tagged ports :
Current Untagged ports :
Static Tagged ports :
Static Untagged ports :
Forbidden ports : 1-26
VID : 3051 VLAN Name : 3051
VLAN TYPE : static Advertisement : Enabled
Member ports : 25-26
Static ports : 25-26
Current Tagged ports : 25-26
Current Untagged ports :
Static Tagged ports : 25-26
Static Untagged ports :
Forbidden ports :
...
Interface Name : System
IP Address : 10.90.90.129 (MANUAL)
Subnet Mask : 255.255.254.0
VLAN Name : 3051
Admin. State : Enabled
Link Status : Link UP
Member Ports : 25-26
...
Код:
MAC Address : 00-21-91-81-2C-60
IP Address : 10.90.90.130 (Manual)
VLAN Name : 3051
Subnet Mask : 255.255.254.0
Default Gateway : 10.90.90.1
Boot PROM Version : Build 5.00.011
Firmware Version : Build 6.00.B14
...
VID : 1 VLAN Name : default
VLAN TYPE : static Advertisement : Disabled
Member ports :
Static ports :
Current Tagged ports :
Current Untagged ports :
Static Tagged ports :
Static Untagged ports :
Forbidden ports : 1-26
VID : 3051 VLAN Name : 3051
VLAN TYPE : static Advertisement : Enabled
Member ports : 25-26
Static ports : 25-26
Current Tagged ports : 25-26
Current Untagged ports :
Static Tagged ports : 25-26
Static Untagged ports :
Forbidden ports :
...
Interface Name : System
IP Address : 10.90.90.130 (MANUAL)
Subnet Mask : 255.255.254.0
VLAN Name : 3051
Admin. State : Enabled
Link Status : Link UP
Member Ports : 25-26
Итог - с коммутатора 10.90.90.129 MAC-адрес коммутатора 10.90.90.130 якобы в двух вланах:
Код:
10.90.90.129:admin#show fdb mac_address 00-21-91-81-2C-60
Command: show fdb mac_address 00-21-91-81-2C-60
VID VLAN Name MAC Address Port Type
---- ---------------- ----------------- ------ ----------------
1 default 00-21-91-81-2C-60 25 Dynamic
3051 3051 00-21-91-81-2C-60 25 Dynamic
Total Entries : 2
И наоборот:
Код:
10.90.90.130:admin#show arpentry ipaddress 10.90.90.129
Command: show arpentry ipaddress 10.90.90.129
ARP Aging Time : 20
Interface IP Address MAC Address Type
------------- --------------- ----------------- ---------------
System 10.90.90.129 00-21-91-7E-27-64 Dynamic
Total Entries: 1
10.90.90.130:admin#show fdb mac_address 00-21-91-7E-27-64
Command: show fdb mac_address 00-21-91-7E-27-64
VID VLAN Name MAC Address Port Type
---- ---------------- ----------------- ------ ----------------
1 default 00-21-91-7E-27-64 26 Dynamic
3051 3051 00-21-91-7E-27-64 26 Dynamic
Total Entries : 2
Больше такого поведения нигде не наблюдали.
MAC'и коммутаторов "через" соседа видны нормально, в правильном vlan'e.