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04-15-2016 08:50 AM
04-15-2016 08:50 AM
Hi,
I'm unable to find a solution to that :
2 rooms with 2 switches procurve 2530 with
- port 1-6 -> vlan 10 unttaged
- port 7-8=trk1 -> vlan 10 untagged, used to copper uplink to neighbor (same room)
- port 9-22 -> many vlan, let's say 1,2,3 tagged and untagged
- port 23-24=trk3 -> vlan 1,2,3 used to copper ulink to neighbor
- port 25-26=trk2 -> vlan 10, used to fiber uplink to another set of two switchs (other room)
- port 27-28=trk4 -> vlan 1,2,3, used to fiber uplink to another set of two switchs
I tried to use instance (1 for vlan 10, 2 for vlan 1,2,3) to "separate" STP, but it always choose the trk1 as forwarding for ALL vlan.
I do not understand, i thought that trk1 or 2 will be choose for vlan 10 and trk 3 or 4 for vlan 1,2,3 ?!
I found something on hp docs (see attached file) that says to have uplink for all vlan...
But i'd really like to dedicated uplink for vlan 10 to garanty troughput regarless of what vlan 1,2,3 are doing.
Any idea please ?
Thanks
Solved! Go to Solution.
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04-15-2016 11:23 AM
04-15-2016 11:23 AM
SolutionI'd put all VLANs tagged and VLAN1 untagged on all trunks. Then play around with port priority for specific MSTP instances.
This way, you can create multiple paths between switches, and have each path one MSTP instance being forwarded, and the other being blocked.
This isolates traffic like you want, and gives redundancy.
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04-18-2016 03:00 AM - edited 04-18-2016 04:29 AM
04-18-2016 03:00 AM - edited 04-18-2016 04:29 AM
Re: Spanning-tree with multiple VLAN an multiple uplink
Hi and thanks for this reply.
I tryied to play with priority, but with no luck, but i'm not very used with that...
Before opening this thread i found a thing like that, is this what you were talking about ?
spanning-tree spanning-tree config-name stpconfig spanning-tree config-revision 1 spanning-tree priority 1 spanning-tree instance 1 vlan 10 spanning-tree instance 1 priority 1 spanning-tree instance 2 vlan 1 2 3 9 101 240 1110 1200 spanning-tree instance 2 priority 2
On the other switch, only have to "swap" priority : one switch is root for one instance, the other switch for the other instance.
But this is not ok...
I do not know if this is important but vlan 1 is not on the trunk that forwards vlan 10.... maybe i should change that
edit : sorry my first reading was bad... i now see you want to put ALL vlan on ALL trunk. And then dedicate trunk using priority... i do not see really how...
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04-18-2016 10:02 AM
04-18-2016 10:02 AM
Re: Spanning-tree with multiple VLAN an multiple uplink
Having a different MST-root per instance might be usefull in lot of cases. But won't help that much when connecting just 2 switches using different paths.
Play around with command "spanning-tree instance <1-16> port priority <number>" command , to make paths preferable/less preferable per VLAN
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04-18-2016 11:41 PM - edited 04-19-2016 04:52 AM
04-18-2016 11:41 PM - edited 04-19-2016 04:52 AM
Re: Spanning-tree with multiple VLAN an multiple uplink
Ok,
as a sum up :
- All VLAN on all trunks
- one instance for vlan 10
- one instance for other vlan
- on trunk ports use port priority to "dedicate" this trunk for either vlan 10, either the other one
Is my understanding correct ?
What about using path-cost ?
many thanks for your help
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04-20-2016 09:25 AM
04-20-2016 09:25 AM
Re: Spanning-tree with multiple VLAN an multiple uplink
Your understanding is fine.
Indeed better use path-cost instead of priority. Priority is only tie-breaker if costs are equal.
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04-22-2016 08:30 AM
04-22-2016 08:30 AM
Re: Spanning-tree with multiple VLAN an multiple uplink
Sorry, i just see your reply. I did some tests using your last advices. Then i did not use path-cost. Should i regarding what is below ?
Vlan10 is the vlan i'd like to see only on trk1&2. Others vlan should go on trk3&4.
As per you advice, all VLAN goes on all trunks
Here is what i did :
hostname "HP-2530-24G-SW2" trunk 7-8 trk1 lacp trunk 25-26 trk2 lacp trunk 23-24 trk3 lacp trunk 27-28 trk4 lacp interface 7 name "TRK-Storage-local" exit interface 8 name "TRK-Storage-local" exit interface 23 name "TRK-LAN-Local" exit interface 24 name "TRK-LAN-Local" exit snmp-server community "public" unrestricted vlan 1 name "inside" no untagged 1-6,9 untagged 10-22,Trk1-Trk4 ip address 192.168.218.202 255.255.255.0 exit vlan 2 name "hosting" tagged 9-22,Trk1-Trk4 no ip address exit vlan 3 name "DMZ" tagged 9-22,Trk1-Trk4 no ip address exit vlan 9 name "DMZP" tagged 9-22,Trk1-Trk4 no ip address exit vlan 10 name "stockage" untagged 1-6 tagged Trk1-Trk4 no ip address jumbo exit vlan 101 name "hosting-101" tagged 9-22,Trk1-Trk4 no ip address exit vlan 240 name "management" untagged 9 tagged 10-22,Trk1-Trk4 ip address 192.168.240.202 255.255.255.0 exit vlan 1110 name "voip-1110" tagged 9-22,Trk1-Trk4 no ip address exit vlan 1200 name "voip-1200" tagged 9-22,Trk1-Trk4 no ip address exit spanning-tree spanning-tree Trk1 priority 4 spanning-tree Trk2 priority 4 spanning-tree Trk3 priority 4 spanning-tree Trk4 priority 4 spanning-tree config-name "stpconfig" spanning-tree config-revision 1 spanning-tree instance 1 vlan 10 spanning-tree instance 1 priority 2 spanning-tree instance 1 Trk1 priority 1 spanning-tree instance 1 Trk2 priority 1 spanning-tree instance 1 Trk3 priority 4 spanning-tree instance 1 Trk4 priority 4 spanning-tree instance 2 vlan 1-9 11-1999 spanning-tree instance 2 priority 1 spanning-tree instance 2 Trk1 priority 4 spanning-tree instance 2 Trk2 priority 4 spanning-tree instance 2 Trk3 priority 1 spanning-tree instance 2 Trk4 priority 1 spanning-tree priority 1
And here is what i get purple is to show you what seems ok and important, i have problem with what is in red
HP-2530-24G-SW2(config)# sh spanning-tree instance 1 MST Instance Information Instance ID : 1 Mapped VLANs : 10 Switch Priority : 8192 Topology Change Count : 104 Time Since Last Change : 13 mins Regional Root MAC Address : 5820b1-2e4900 Regional Root Priority : 4096 Regional Root Path Cost : 20000 Regional Root Port : Trk1 Remaining Hops : 19 Designated Port Type Cost Priority Role State Bridge ----- --------- --------- -------- ---------- ------------ -------------- 1 100/1000T Auto 128 Disabled Disabled 2 100/1000T 20000 128 Designated Forwarding 480fcf-931840 3 100/1000T Auto 128 Disabled Disabled 4 100/1000T Auto 128 Disabled Disabled 5 100/1000T Auto 128 Disabled Disabled 6 100/1000T Auto 128 Disabled Disabled 9 100/1000T Auto 128 Disabled Disabled 10 100/1000T 200000 128 Designated Forwarding 480fcf-931840 11 100/1000T 200000 128 Designated Forwarding 480fcf-931840 12 100/1000T Auto 128 Disabled Disabled 13 100/1000T Auto 128 Disabled Disabled 14 100/1000T Auto 128 Disabled Disabled 15 100/1000T Auto 128 Disabled Disabled 16 100/1000T Auto 128 Disabled Disabled 17 100/1000T Auto 128 Disabled Disabled 18 100/1000T Auto 128 Disabled Disabled 19 100/1000T Auto 128 Disabled Disabled 20 100/1000T Auto 128 Disabled Disabled 21 100/1000T Auto 128 Disabled Disabled 22 100/1000T Auto 128 Disabled Disabled Trk1 20000 16 Root Forwarding 5820b1-2e4900 Trk2 20000 16 Designated Forwarding 480fcf-931840 Trk3 20000 64 Alternate Blocking 5820b1-2e4900 Trk4 20000 64 Designated Forwarding 480fcf-931840
And the other instance, same problem with what's in red :
HP-2530-24G-SW2(config)# sh spanning-tree instance 2 MST Instance Information Instance ID : 2 Mapped VLANs : 1-9,11-1999 Switch Priority : 4096 Topology Change Count : 149 Time Since Last Change : 13 mins Regional Root MAC Address : 480fcf-931840 Regional Root Priority : 4096 Regional Root Path Cost : 0 Regional Root Port : This switch is root Remaining Hops : 20 Designated Port Type Cost Priority Role State Bridge ----- --------- --------- -------- ---------- ------------ -------------- 1 100/1000T Auto 128 Disabled Disabled 2 100/1000T 20000 128 Designated Forwarding 480fcf-931840 3 100/1000T Auto 128 Disabled Disabled 4 100/1000T Auto 128 Disabled Disabled 5 100/1000T Auto 128 Disabled Disabled 6 100/1000T Auto 128 Disabled Disabled 9 100/1000T Auto 128 Disabled Disabled 10 100/1000T 200000 128 Designated Forwarding 480fcf-931840 11 100/1000T 200000 128 Designated Forwarding 480fcf-931840 12 100/1000T Auto 128 Disabled Disabled 13 100/1000T Auto 128 Disabled Disabled 14 100/1000T Auto 128 Disabled Disabled 15 100/1000T Auto 128 Disabled Disabled 16 100/1000T Auto 128 Disabled Disabled 17 100/1000T Auto 128 Disabled Disabled 18 100/1000T Auto 128 Disabled Disabled 19 100/1000T Auto 128 Disabled Disabled 20 100/1000T Auto 128 Disabled Disabled 21 100/1000T Auto 128 Disabled Disabled 22 100/1000T Auto 128 Disabled Disabled Trk1 20000 64 Designated Forwarding 480fcf-931840 Trk2 20000 64 Designated Forwarding 480fcf-931840 Trk3 20000 16 Designated Forwarding 480fcf-931840 Trk4 20000 16 Designated Forwarding 480fcf-931840
Once again i really appreciate your help.
Have a nice day
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05-02-2016 04:47 AM
05-02-2016 04:47 AM
Re: Spanning-tree with multiple VLAN an multiple uplink
Hi,
can you please stiil help me ?
Any advices on what i did and get in my previous post ?
Thanks
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05-02-2016 10:38 AM
05-02-2016 10:38 AM
Re: Spanning-tree with multiple VLAN an multiple uplink
Seems to me you're almost there.
Make switch1 root for all instances. It will have both TRK1 and TRK3 forwarding for both instances. That is OK!
Switch2 eventually "decides" which TRK will be used ! Sw2 spanning tree output should look like:
Instance1
trk1 root-port forwarding
trk3 alternate-blocking
instance2
trk1 alternate blocking
trk3 root port forwarding
Focus on Instance 1. Since Sw2 is blocking on trk3, sw1 will not learn any MAC addresses on that port......and will not send data on it
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05-09-2016 12:47 AM
05-09-2016 12:47 AM
Re: Spanning-tree with multiple VLAN an multiple uplink
Really many thanks, i'll try all of that