can you have Pruning on transparent switches?

Aug 17, 2010 3 Replies
C

######### Can you have Pruning on transparent switches?



Complaint: The hosts on SW2 vlan200 aren't passing traffic. My question: Why no vlan200 in the "not pruned" category of sw2?



This looks like it should work. The 2 switches are trunked, and in transparent mode. fdsafdsa-inet-sw-2 (passes no traffic on vlan 200) fdsafdsa-inet-sw-1 (passes traffic ok)



fdsafdsa-inet-sw-2 sh int trunk !vlan200 is pruned here?. Port Vlans in spanning tree forwarding state and not pruned Po1 1,100,300



fdsafdsa-inet-sw-1 Port Vlans in spanning tree forwarding state and not pruned Po1 1,100,200,300


SW2 sh vlan:



200 DMZ active Gi0/3(to FW2 fe3), Gi0/12, Gi0/13, Gi0/14, Gi0/15 (servers)

on SW1 sh vlan: Gi0/3 FW-1, Gi0/12, Gi0/13, Gi0/14, Gi0/15, Gi0/16 (servers)



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C

Oh and some more info: inet-sw-2#show vtp status VTP Version : 2 Configuration Revision : 0 Maximum VLANs supported locally : 1005 Number of existing VLANs : 8 VTP Operating Mode : Transparent VTP Domain Name : catrx VTP Pruning Mode : Disabled VTP V2 Mode : Disabled VTP Traps Generation : Disabled

inet-sw-1#show vtp status VTP Version : 2 Configuration Revision : 0 Maximum VLANs supported locally : 1005 Number of existing VLANs : 8 VTP Operating Mode : Transparent VTP Domain Name : catrx VTP Pruning Mode : Disabled VTP V2 Mode : Disabled VTP Traps Generation : Disabled

If anyone knows why VLAN200 is not showing on SW2 in the Not-Pruned" section, please let me know.

Thanks, Crzzy1

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B

How about:- It's not in the not-pruned section, it's in the not-forwarding section.

With VTP off (well, transparent which amounts to the same thing) there will be no VTP pruning.

Have a look at STP.

For more comment please post sh runn sh cdp nei sh spanning-tree !

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A

Hi there,

Is the Vlan 200 configured as allowed on the Switch 2 Trunk ?

a "show running interface" for the portchannel and the trunk port might be "enlightening"...

Cheers, Nuno

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