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Need some help on MST
I was wondering if this will work.
I want to keep my 5324 and 6024 together with 4 3448's.
3448 will be using MST
6024 MST
5324 SPT
I want to set the 3448 Region 0 to vlan 1000 and connect it to the 5324.
3448 --->> 5324
and connect to the 6024 with vlan 2000 Region 1
3448 -->> 6024
Will this work or will it cause a loop because the 5324 is not MST?
If not I would have to move everything to the 6024 and use 5324 for something else.
Thanks,
I want to keep my 5324 and 6024 together with 4 3448's.
3448 will be using MST
6024 MST
5324 SPT
I want to set the 3448 Region 0 to vlan 1000 and connect it to the 5324.
3448 --->> 5324
and connect to the 6024 with vlan 2000 Region 1
3448 -->> 6024
Will this work or will it cause a loop because the 5324 is not MST?
If not I would have to move everything to the 6024 and use 5324 for something else.
Thanks,
- Ok, decided to use the 6024 has one core switch.
switch 1 3448 g3 --->>>6024
switch 1 3448 g4 --->>>6024
I configured the 3448/6024 for MST with the Regions 0 and 1.
Region 1 has only vlan 2000 and Region 0 has the rest.
On the 3448, MST configuration is enabled and set correctly.
I still see from running "show spanning-tree blockedports" that g4 is BLK for both regions.
What do I need to do from here? DELL-Cuong N.
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Posted April 17th, 2006 18:00
Can you post your configurations for your switches? It will help us understand the setup.
Cuong.
- I configured a 3424 and a 3448 the same way. I still get blocked ports in spanning-tree.
spanning-tree mode mstp
interface ethernet e1
spanning-tree portfast
exit
spanning-tree mst configuration
instance 1 add vlan 2000
exit
interface range ethernet g(3-4)
switchport mode general
exit
vlan database
vlan 1000,2000
exit
interface ethernet g3
switchport general pvid 1000
exit
interface ethernet g4
switchport general pvid 2000
exit
interface ethernet g3
switchport general allowed vlan add 1000 untagged
exit
interface ethernet g4
switchport general allowed vlan add 2000 untagged
exit
interface ethernet e1
switchport access vlan 2000
exit
interface vlan 2000
ip address 172.18.0.1 255.255.0.0
exit
-------------switch02-----------------
spanning-tree mode mstp
interface ethernet e1
spanning-tree portfast
exit
spanning-tree mst configuration
instance 1 add vlan 2000
exit
interface range ethernet g(3-4)
switchport mode general
exit
vlan database
vlan 1000,2000
exit
interface ethernet g3
switchport general pvid 1000
exit
interface ethernet g4
switchport general pvid 2000
exit
interface ethernet g3
switchport general allowed vlan add 1000 untagged
exit
interface ethernet g4
switchport general allowed vlan add 2000 untagged
exit
interface ethernet e1
switchport access vlan 2000
exit
interface vlan 2000
ip address 172.18.0.2 255.255.0.0
exit DELL-Cuong N.
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Posted April 18th, 2006 15:00
Can I assume that the first set of configuration data is for the 34xx (switch 1) and the second set of configuration information which you refer to as "switch 2" is for the 6024?
Cuong.
DELL-Cuong N.
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0
Posted April 18th, 2006 17:00
But in your network diagram you show the two 34xx, both of which are connected to the 6024. I'm assuming these 34xx are not connected to each others. So the MST setup must be compared for all the switches in the network - the region must match for example - so can you also post your configuration for the 6024 please.Also let me restate my understanding. You have two 34xx which are connected to a 6024. You are running MST on both of the 34xx and on the 6024 correct? We need to see the configuration on all the switches.Cuong.DELL-Cuong N.
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Posted April 18th, 2006 18:00
Ok. I see. So the test setup is using only 34xx and no 6024. That's fine. We'll try with that.
Cuong.
- All of the 3448's I have in production are using the same config that connect to the 6024. All of them have the Same regions setup as well to match the 6024.
I just want to see if I can get it working in my lab first to ensure no downtime accures. This why I configure 2 34xx to match what i have in production, minus the 6024. DELL-Cuong N.
1017 Posts
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Posted April 18th, 2006 18:00
BTW, can you also do a "show spanning-tree blockports" on your test setup and post the result here please.
Thanks,
Cuong.
ottis
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Posted April 10th, 2006 12:00