Link Trunk / Non Trunk Mismatch & Trunk negotiation accross VTP boundaries

alex.dersch · ‎08-07-2012

Hello,

i'm getting the following two discrepancies in my LMS Prime which i can't explain.

Trunk negotiation accross VTP boundaries

[FX-CH-SW10,GigabitEthernet0/14],[nos-sw01,GigabitEthernet0/14],[FX-CH-SW14.GigabitEthernet0/48

it's really odd, because the switches FX-CH-SW10 and nos-sw01 are on different sites with an WAN in between.

the same for Link Trunk / Non Trunk Mismatch

FX-CH-SW15,GigabitEthernet0/48],[nos-ch-sw01,GigabitEthernet0/15],[FX-CH-SW10,GigabitEthernet0/15]

even in the topology view of the fx-ch-sw10 i see the nos-sw01.

can anybody explain why this happens?

regards

Alex

alex.dersch · ‎08-07-2012

in the data collection details i can see both fx switches have the wrong neighbors. how is the neighborship determined?

172.16.9.46	fx-ch-sw14	FX-CH-SW14	2960S-48TS-S	nos-ch-sw01
172.16.9.54	fx-ch-sw15	FX-CH-SW15	2960S-48TS-S	nos-ch-sw01

Jason Davis · ‎08-07-2012

CDP neighbor adjacency is used. Check CLI "show cep neighbor". Might need to force an inventory scan from Device Center. Or it could be a device instrumentation problem via SNMP and the CDP objects

Sent from Cisco Technical Support iPad App

alex.dersch · ‎08-07-2012

Show dcp neighbor show the correct neighbors. i did an inventory scan followed by a data collection. Still the same issue

Jason Davis · ‎08-07-2012

The next suggestion would be to look at the SNMP instrumentation directly to see if it is incorrect.

Your looking to do an SNMPwalk on

cdpCacheEntry / .1.3.6.1.4.1.9.9.23.1.2.1.1

alex.dersch · ‎08-07-2012

This looks also fine, no nos-xx switch in there

The following is a SNMP walk of device 172.16.9.46 starting from .1.3.6.1.4.1.9.9.23.1.2.1.1

SNMP Walk Output

--------------------------------------------------------------------------------

.1.3.6.1.4.1.9.9.23.1.2.1.1

cdpCacheAddressType.10101.16 = INTEGER : 1

cdpCacheAddressType.10117.1 = INTEGER : 1

cdpCacheAddressType.10120.2 = INTEGER : 1

cdpCacheAddressType.10126.24 = INTEGER : 1

cdpCacheAddressType.10143.22 = INTEGER : 1

cdpCacheAddressType.10148.6 = INTEGER : 1

cdpCacheAddress.10101.16 = STRING :

6

cdpCacheAddress.10117.1 = STRING :

cdpCacheAddress.10120.2 = STRING :

cdpCacheAddress.10126.24 = STRING :

2

cdpCacheAddress.10143.22 = STRING :

4

cdpCacheAddress.10148.6 = STRING :

cdpCacheVersion.10101.16 = STRING : 8.6.1.0

cdpCacheVersion.10117.1 = STRING : SIP45.9-2-1S

cdpCacheVersion.10120.2 = STRING : SIP45.9-2-1S

cdpCacheVersion.10126.24 = STRING : 8.6.1.0

cdpCacheVersion.10143.22 = STRING : Linux 2.4.21-47.ELsmp #1 SMP Wed Jul 5 20:38:41 EDT 2006 CCM:6.1.1.2000-3

cdpCacheVersion.10148.6 = STRING : Cisco IOS Software, C3560E Software (C3560E-UNIVERSALK9-M), Version 12.2(55)SE1, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Compiled Thu 02-Dec-10 06:44 by prod_rel_team

cdpCacheDeviceId.10101.16 = STRING : SEP0011856110B2

cdpCacheDeviceId.10117.1 = STRING : SEP6C504DDB7AC0

cdpCacheDeviceId.10120.2 = STRING : SEPF025727881B1

cdpCacheDeviceId.10126.24 = STRING : cipc-mknuchel

cdpCacheDeviceId.10143.22 = STRING : ccm-sdk.fxwl.lan

cdpCacheDeviceId.10148.6 = STRING : FX-CH-SW10.frox.com

cdpCacheDevicePort.10101.16 = STRING : Ethernet10

cdpCacheDevicePort.10117.1 = STRING : Port 1

cdpCacheDevicePort.10120.2 = STRING : Port 1

cdpCacheDevicePort.10126.24 = STRING : Ethernet14

cdpCacheDevicePort.10143.22 = STRING : eth0

cdpCacheDevicePort.10148.6 = STRING : GigabitEthernet0/14

cdpCachePlatform.10101.16 = STRING : Communicator (Windows 7)

cdpCachePlatform.10117.1 = STRING : Cisco IP Phone 7945

cdpCachePlatform.10120.2 = STRING : Cisco IP Phone 7945

cdpCachePlatform.10126.24 = STRING : Communicator (Windows 7)

cdpCachePlatform.10143.22 = STRING : none found

cdpCachePlatform.10148.6 = STRING : cisco WS-C3560X-24

cdpCacheCapabilities.10101.16 = STRING : ?

cdpCacheCapabilities.10117.1 = STRING : ?

cdpCacheCapabilities.10120.2 = STRING : ?

cdpCacheCapabilities.10126.24 = STRING : ?

cdpCacheCapabilities.10143.22 = STRING :

cdpCacheCapabilities.10148.6 = STRING : )

cdpCacheVTPMgmtDomain.10148.6 = STRING : FX-CH

cdpCacheNativeVLAN.10101.16 = INTEGER : 0

cdpCacheNativeVLAN.10117.1 = INTEGER : 0

cdpCacheNativeVLAN.10120.2 = INTEGER : 0

cdpCacheNativeVLAN.10126.24 = INTEGER : 0

cdpCacheNativeVLAN.10143.22 = INTEGER : 0

cdpCacheNativeVLAN.10148.6 = INTEGER : 914

cdpCacheDuplex.10101.16 = INTEGER : 1

cdpCacheDuplex.10117.1 = INTEGER : 3

cdpCacheDuplex.10120.2 = INTEGER : 3

cdpCacheDuplex.10126.24 = INTEGER : 1

cdpCacheDuplex.10143.22 = INTEGER : 1

cdpCacheDuplex.10148.6 = INTEGER : 3

cdpCacheLastChange.10101.16 = Timeticks : 94 days 16:30:40

cdpCacheLastChange.10117.1 = Timeticks : 94 days 16:26:28

cdpCacheLastChange.10120.2 = Timeticks : 94 days 16:26:54

cdpCacheLastChange.10126.24 = Timeticks : 94 days 16:24:25

cdpCacheLastChange.10143.22 = Timeticks : 94 days 16:29:31

cdpCacheLastChange.10148.6 = Timeticks : 94 days 16:31:10