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тАО11-16-2007 02:01 AM
тАО11-16-2007 02:01 AM
Configure MSTP on ProCurve 2824
Dear All,
I'm going to try and set up three 2824's for MSTP tomorrow but am a little confused about what needs to go into each switch's config.
The documentation says to configure the instances for each VLAN group. I have 3 VLANs and want to set up 3 instances (one for each VLAN). Do I have to add all three instance config details to each switch, i.e.
- spanning-tree instance 1 vlan 1
- spanning-tree instance 2 vlan 2
- spanning-tree instance 3 vlan 3
on all three switches or just the individual instance configs - one on each switch?
Similarly, do I have to add priority config details for each instance on each switch or do I just give each switch a different instance with a priority of 0? For example:
Switch 1:
- spanning-tree instance 1 priority 0
- spanning-tree instance 2 priority 1
- spanning tree instance 3 priority 1
Switch 2:
- spanning-tree instance 1 priority 1
- spanning-tree instance 2 priority 0
- spanning-tree instance 3 priority 1
and so forth... or:
Switch 1:
- spanning-tree instance 1 priority 0
Switch 2:
- spanning-tree instance 2 priority 0
etc...
Many thanks.
Chris
I'm going to try and set up three 2824's for MSTP tomorrow but am a little confused about what needs to go into each switch's config.
The documentation says to configure the instances for each VLAN group. I have 3 VLANs and want to set up 3 instances (one for each VLAN). Do I have to add all three instance config details to each switch, i.e.
- spanning-tree instance 1 vlan 1
- spanning-tree instance 2 vlan 2
- spanning-tree instance 3 vlan 3
on all three switches or just the individual instance configs - one on each switch?
Similarly, do I have to add priority config details for each instance on each switch or do I just give each switch a different instance with a priority of 0? For example:
Switch 1:
- spanning-tree instance 1 priority 0
- spanning-tree instance 2 priority 1
- spanning tree instance 3 priority 1
Switch 2:
- spanning-tree instance 1 priority 1
- spanning-tree instance 2 priority 0
- spanning-tree instance 3 priority 1
and so forth... or:
Switch 1:
- spanning-tree instance 1 priority 0
Switch 2:
- spanning-tree instance 2 priority 0
etc...
Many thanks.
Chris
2 REPLIES 2
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тАО11-16-2007 04:56 AM
тАО11-16-2007 04:56 AM
Re: Configure MSTP on ProCurve 2824
Hi
MSTP is a Spanning-Tree protocol, and when you want to configure a Spanning Tree, you should simply check your topology and plan well for a good ROOT and Backup Root.
If you have Dual core switches, then configuring a third instance is meanless unless you have other consideration.
Simply, select 2 Switches as Root and Backup Root and make 2 Instances to load balance the network traffic based on the 3 Vlans mapped to those instances.
Create Instance1 with (say Vlan1 only).
Create Instance2 with Vlan2,3
Then configure Switch1:
- Root for Instance 1.
- Backup for Instance 2.
- Root for the IST.
And configure Switch2:
- Backup for Instance 1.
- Root for Instance 2.
- Backup for the IST.
Switch1:
--------
SW1(config)#span priority 0
SW1(config)#span instance 1 vlan 1
SW1(config)#span instance 1 priority 0
SW1(config)#span instance 2 vlan 2-3
SW1(config)#span instance 2 priority 1
SW1(config)#span ***enabling Spanning Tree**
Switch2:
--------
SW2(config)#span priority 1
SW2(config)#span instance 1 vlan 1
SW2(config)#span instance 1 priority 1
SW2(config)#span instance 2 vlan 2-3
SW2(config)#span instance 2 priority 0
SW2(config)#span ***enabling Spanning Tree**
For a detailed example use the following link:
http://www.procurve.com/NR/rdonlyres/2AB265E3-8277-49EF-98C2-070186D7B516/0/ProCurveSpanning_tree_Sep_07_WW_Eng_Ltr.pdf
Good Luck !!!
MSTP is a Spanning-Tree protocol, and when you want to configure a Spanning Tree, you should simply check your topology and plan well for a good ROOT and Backup Root.
If you have Dual core switches, then configuring a third instance is meanless unless you have other consideration.
Simply, select 2 Switches as Root and Backup Root and make 2 Instances to load balance the network traffic based on the 3 Vlans mapped to those instances.
Create Instance1 with (say Vlan1 only).
Create Instance2 with Vlan2,3
Then configure Switch1:
- Root for Instance 1.
- Backup for Instance 2.
- Root for the IST.
And configure Switch2:
- Backup for Instance 1.
- Root for Instance 2.
- Backup for the IST.
Switch1:
--------
SW1(config)#span priority 0
SW1(config)#span instance 1 vlan 1
SW1(config)#span instance 1 priority 0
SW1(config)#span instance 2 vlan 2-3
SW1(config)#span instance 2 priority 1
SW1(config)#span ***enabling Spanning Tree**
Switch2:
--------
SW2(config)#span priority 1
SW2(config)#span instance 1 vlan 1
SW2(config)#span instance 1 priority 1
SW2(config)#span instance 2 vlan 2-3
SW2(config)#span instance 2 priority 0
SW2(config)#span ***enabling Spanning Tree**
For a detailed example use the following link:
http://www.procurve.com/NR/rdonlyres/2AB265E3-8277-49EF-98C2-070186D7B516/0/ProCurveSpanning_tree_Sep_07_WW_Eng_Ltr.pdf
Good Luck !!!
Science for Everyone
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тАО11-18-2007 10:06 PM
тАО11-18-2007 10:06 PM
Re: Configure MSTP on ProCurve 2824
Many thanks.
I did the work on Saturday (and all seems well at the moment) before I could read your post but it has just confirmed that I've done it correctly.
Cheers.
Chris
I did the work on Saturday (and all seems well at the moment) before I could read your post but it has just confirmed that I've done it correctly.
Cheers.
Chris
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