网络工程 - CDP 本地 VLAN 不匹配 - 吾爱随笔录

我在 Cisco 3750x 交换机堆栈上收到 CDP NATIVE VLAN MISMATCH 日志。Gig 2/0/5 和 Gig 4/0/6没有任何物理连接（如下所示，1/0/44 和 2/0/13 也不是）。我通过 Stackwise 布线互连每个交换机。我没有看到任何与此相关的性能问题。可能是一个错误？我在以下所有交换机上运行 15.2(4)E9

Dec  6 17:06:11: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet2/0/5 (10), with 3750X_STACK GigabitEthernet4/0/6 (50).
Dec  6 17:06:11: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet2/0/5 (10), with 3750X_STACK GigabitEthernet4/0/6 (50). (3750X_STACK-2)
Dec  6 17:07:07: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet4/0/6 (50), with 3750X_STACK GigabitEthernet2/0/5 (10).
Dec  6 17:07:07: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet4/0/6 (50), with 3750X_STACK GigabitEthernet2/0/5 (10). (3750X_STACK-4)
Dec  6 17:07:10: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet2/0/5 (10), with 3750X_STACK GigabitEthernet4/0/6 (50).
Dec  6 17:07:10: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet2/0/5 (10), with 3750X_STACK GigabitEthernet4/0/6 (50). (3750X_STACK-2)
Dec  6 17:07:59: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet2/0/5 (10), with 3750X_STACK GigabitEthernet4/0/6 (50).
Dec  6 17:07:59: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet2/0/5 (10), with 3750X_STACK GigabitEthernet4/0/6 (50). (3750X_STACK-2)
Dec  6 17:08:07: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet4/0/6 (50), with 3750X_STACK GigabitEthernet2/0/5 (10).
Dec  6 17:08:07: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet4/0/6 (50), with 3750X_STACK GigabitEthernet2/0/5 (10). (3750X_STACK-4)

3750X_STACK#show switch detail
Switch/Stack Mac Address : xxxx.xxxx.xxxx
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master xxxx.xxxx.xxxx     15     3       Ready
 2       Member xxxx.xxxx.xxxx     1      3       Ready
 3       Member xxxx.xxxx.xxxx     1      3       Ready
 4       Member xxxx.xxxx.xxxx     1      3       Ready



         Stack Port Status             Neighbors
Switch#  Port 1     Port 2           Port 1   Port 2
--------------------------------------------------------
  1        Ok         Ok                2        4
  2        Ok         Ok                3        1
  3        Ok         Ok                4        2
  4        Ok         Ok                1        3

3750X_STACK#show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
                  D - Remote, C - CVTA, M - Two-port Mac Relay

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
3750X_STACK
                 Gig 2/0/5         171             R S I  WS-C3750X Gig 4/0/6
3750X_STACK
                 Gig 4/0/6         131             R S I  WS-C3750X Gig 2/0/5
3750X_STACK
                 Gig 2/0/13        150             R S I  WS-C3750X Gig 1/0/44
3750X_STACK
                 Gig 1/0/44        147             R S I  WS-C3750X Gig 2/0/13

Switch Ports Model                     SW Version            SW Image
------ ----- -----                     ----------            ----------
*    1 54    WS-C3750X-48P             15.2(4)E9             C3750E-UNIVERSALK9-M
     2 54    WS-C3750X-48P             15.2(4)E9             C3750E-UNIVERSALK9-M
     3 54    WS-C3750X-48P             15.2(4)E9             C3750E-UNIVERSALK9-M
     4 54    WS-C3750X-48P             15.2(4)E9             C3750E-UNIVERSALK9-M

3750X_STACK#show run interface gigabitEthernet 2/0/5
Building configuration...

Current configuration : 151 bytes
!
interface GigabitEthernet2/0/5
 switchport access vlan 10
 switchport trunk encapsulation dot1q
 switchport mode access
end

3750X_STACK#show run interface gigabitEthernet 4/0/6
Building configuration...

Current configuration : 106 bytes
!
interface GigabitEthernet4/0/6
 switchport access vlan 50
 switchport mode access
end