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04-21-2007 10:02 PM
04-21-2007 10:02 PM
we have a similar problem with our Core Switch (ProCurve 5308) and a Server (DL 580 G2).
If the Server is rebooting the ProCurve will hang up until we unplug the power cord.
The Teaming Setting onto the Switch (HP Network Configuration Utility) is set to automatic and the Switch will also handle a Dynamic Trunk (LACP) with the server out.
The CoreSwitch is also RSTP Master (Prio 1).
What can it be?
Thanks for help.
Kind Regards
Alen
Solved! Go to Solution.
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04-21-2007 10:30 PM
04-21-2007 10:30 PM
Re: Switch hangs up when Server was rebooting
Most likely the spanning-tree instability is causing a broadcast storm which is causing the switch to lock up.
MSTP does not suffer from this problem so you can enable MSTP instead.
One thing to be aware is that with MSTP you need to set the edge port status for all your clients:
e.g
5300(config)# spanning-tree a1-a24 edge-port
RSTP had the edge-port status enabled by default.
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04-21-2007 10:36 PM
04-21-2007 10:36 PM
Re: Switch hangs up when Server was rebooting
thanks for answer - we used E.10.52 on our CireSwitches (5308). Is there also a bug impemented?
What are difference between MSTP and RSTP?
What are the benefits of MSTP? We used always RSTP at this time.
All Ports are deinied as Edge-Port (default) only the Switch Uplink Ports are definied with "no spanning-tress [port] edge-port"
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04-21-2007 10:43 PM
04-21-2007 10:43 PM
SolutionMSTP offers you the ability to load balance VLANs over different redundant links (with RSTP as you know one port is completely blocked and no traffic will flow across it).
You can simply enable MSTP as it is backwards compatible with your other RSTP enabled switches.
There is no need to configure the full MSTP load balancing unless you really want to. For now I would recommend just enabling MSTP on this switch and for your edge-ports, such as this DL580 G2, you will need to specify that in the configuration (the opposite of RSTP).
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04-21-2007 10:52 PM
04-21-2007 10:52 PM
Re: Switch hangs up when Server was rebooting
Step 1:
Define all ports - expect the Switch Uplink ports - as spenning-tree edge-ports
Step 2:
Change the Version from RSTP to MSTP
spanning-tree protocol-version mstp
Step 3:
Update the Firmware to E.10.56
Can it be come to problems while doing Step 1+2?
Must be the Ports disabled LACP (no lacp)?
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04-21-2007 10:59 PM
04-21-2007 10:59 PM
Re: Switch hangs up when Server was rebooting
So just do Step 2 first.
You only need to update to E.10.56 if you really want to run RSTP.
Since you appear happy to change to MSTP then you could just wait for the new firmware version to appear on the ProCurve website.
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04-21-2007 11:04 PM
04-21-2007 11:04 PM
Re: Switch hangs up when Server was rebooting
Can you explain me the benefits of MSTP instead of RSTP?
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04-21-2007 11:11 PM
04-21-2007 11:11 PM
Re: Switch hangs up when Server was rebooting
Here you can find useful info and comparison between RSTP and MSTP:
http://en.wikipedia.org/wiki/Multiple_Spanning_Tree_Protocol#Multiple_Spanning_Tree_Protocol_.28MSTP.29
More info about implementing:
ftp://ftp.hp.com/pub/networking/software/6400-5300-4200-3400-AdvTrafficMgmt-Oct2006-59906051-Chap06.pdf
Good Luck !!!
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04-21-2007 11:17 PM
04-21-2007 11:17 PM
Re: Switch hangs up when Server was rebooting
I will report the effect here.
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04-22-2007 06:45 PM
04-22-2007 06:45 PM
Re: Switch hangs up when Server was rebooting
In other words - what bugs haven't been fixed for MSTP?
/BT
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