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04-30-2013 07:32 AM
04-30-2013 07:32 AM
Trunks between 2 GBE2C 2/3 and E5412zl
We are trying to setup 2 GBE2c switches a 4 port trunk from each of the GBE2C switches to the E5412zl switch. Currently we have single non-trunk port connections that work great. The two GBe2C are cross-linked using ports 17&18. Both the GBe2C switches are configured with the same VLAN(301) and they are connected to the same vlan on the E5412zl switch.
We also have two 6120XG switches connected using fiber on vlan 290. On vlan 301 we have 6 P4300 storage devices with two connections to vlan 301 set active/active. When using the non-trunk connections from the GBe2C the servers on vlan 290 see the storage nodes. When we switch to the trunks the servers do not see the storage nodes.
The setup seems like it should be fairly simple but when we create a portchannel using ports 21,22,23,24 on each switch and connect them to the E5412zl switch where C10-C13 is one trunk and D10-D13 is the other trunk nothing seems to work. Spanning tree seems to work the same (d10-d13 shows blocking).
I have attached the config files for the two GBE2C switches and the E5412zl switch and two diagrams outlining the setup. Any help would be great.
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05-03-2013 11:42 AM
05-03-2013 11:42 AM
Re: Trunks between 2 GBE2C 2/3 and E5412zl
Can anyone make a recommendation on how to setup two 4 port trunks between two GBE2C blade switches and a E5412zl switch. We have a number of trunks setup between two E5412zl switches, between one of the e5412zl and two pfsense firewalls but when we try to setup a trunk between the GBE2c and the E5412zl we run into problems. We are using spanning tree and it is already working on the vlan that we have setup on the three switches using non-trunk connections. Also, we are not using LACP on any of our switches.
Any help would be appreciated.
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07-15-2013 10:41 PM
07-15-2013 10:41 PM
Re: Trunks between 2 GBE2C 2/3 and E5412zl
I would have to question your spanning-tree priorities.
Why would you want a blade module to have priority 0, with your "Core" prioritised as "3"?
Also, why are you using MSTP? Is there are particular reason.
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07-30-2013 10:49 AM
07-30-2013 10:49 AM
Re: Trunks between 2 GBE2C 2/3 and E5412zl
We want to priorize traffic on the blade modules to use the one in bay 1 first then bay 2 if there is a problem.
We are using MSTp since that is what we are using on our core switch and it has multiple vlans running accross a couple of trunks