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тАО05-13-2010 09:59 AM
тАО05-13-2010 09:59 AM
trunk and vlans
I am configurating two procurve gigabit switches to be used with my hp lefthand san (iscsi).
Need the switches to be split in two vlan├в s vlan11 to iscsi and vlan3 to the management.
My central network connects to vlan3 to both switches. One cable to each. And this works.
Vlan11 needs to be ├в trunked├в between the two switches with the use of four cables. This works as well.
From my central network I can ├в ping├в switch1 10.0.0.58 and switch2 10.0.0.59.
But if I connecting the four trunk/uplink ports. Connection to 10.0.0.59 drops. Vlan11 works well between switch1 and 2.
What is wrong?
Vlan3 should not have anything to do with the trunk and vlan11.
Se my two attached configurations.
Best regards
Martin
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тАО05-13-2010 01:13 PM
тАО05-13-2010 01:13 PM
Re: trunk and vlans
name "VLAN11"
untagged 1-12,15-16,21-24,Trk1
Trk1 needs to be tagged for trunk and not untagged.
http://www.ipUpTime.net
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тАО05-13-2010 01:25 PM
тАО05-13-2010 01:25 PM
Re: trunk and vlans
untagged 1-12,15-16,21-24
?
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тАО05-13-2010 01:49 PM
тАО05-13-2010 01:49 PM
Re: trunk and vlans
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тАО05-14-2010 05:55 AM
тАО05-14-2010 05:55 AM
Re: trunk and vlans
From my central network I can ping switch1 10.0.0.58 and switch2 10.0.0.59.
But if I connecting the four trunk/uplink ports. Connection to 10.0.0.59 drops. Vlan11 works well between switch1 and 2.
<<<
this seems to means you've got both switches connected to the "central network" using some other ports?
then when connecting both switches together you got a spanning-tree "loop".
- the "uplink" that vlan3 previously passed is blocked by spanning-tree, because the four-port interconnect of the two switches gets preference (greater bandwith).
- but Trk1 is not configured to pass vlan3!
=> so you lose connectivity
==>> configure vlan3 over Trk1 also
vlan 3
tagged Trk1
exit
on both switches.
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тАО05-14-2010 10:26 AM
тАО05-14-2010 10:26 AM
Re: trunk and vlans
Thank you.
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тАО05-17-2010 12:07 PM
тАО05-17-2010 12:07 PM