MLAG configuration for stacks
						
					
					
				
			
		
	
			
	
	
	
	
	
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‎01-12-2016 11:51 AM
			
				
					
					
						Hello,
I have two stacks, and i would like to build a MLAG pair
Each stack is composed of a Summit X670V (slot 1) and a X670 (slot 2)
To make the ISC link, i want to use a sharing of two links, and i was wondering if there is any recommandation about what ports to use for this link ?
Can i use 2 ports on the X670V switchs for the first link, and 2 ports on the X670 switchs for the second link ?
This would look like that :
If this is not possible and i have to connect the two links on the same switchs (for example Slot 1 <=> Slot 1), i could have the situation where one of these switchs fails (let's say for example Slot 1 on the left has a power outage), so the MLAG is broken (split brain) but i still have dual-attached devices (servers, routers) that are dual-attached to the two "Slot 2" switchs and then continue to think the MLAG is up
Thanks in advance for tour advice
Gabriel
					
				
			
			
				
			
			
				
			
			
			
			
			
			
		
		
		
	
	
	
I have two stacks, and i would like to build a MLAG pair
Each stack is composed of a Summit X670V (slot 1) and a X670 (slot 2)
To make the ISC link, i want to use a sharing of two links, and i was wondering if there is any recommandation about what ports to use for this link ?
Can i use 2 ports on the X670V switchs for the first link, and 2 ports on the X670 switchs for the second link ?
This would look like that :
If this is not possible and i have to connect the two links on the same switchs (for example Slot 1 <=> Slot 1), i could have the situation where one of these switchs fails (let's say for example Slot 1 on the left has a power outage), so the MLAG is broken (split brain) but i still have dual-attached devices (servers, routers) that are dual-attached to the two "Slot 2" switchs and then continue to think the MLAG is up
Thanks in advance for tour advice
Gabriel
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‎01-12-2016 12:18 PM
			
				
					
					
						Hi Kevin,
Thanks for the information
Best regards
Gabriel
					
				
			
			
				
			
			
				
			
			
			
			
			
			
		
		
		
	
	
	
Thanks for the information
Best regards
Gabriel
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‎01-12-2016 12:03 PM
			
				
					
					
						Hi Gabriel,
Yes this is entirely possible, just create a sharing group on each stack with members in either switch, for example:
On switch 1: enable sharing 1:1 grouping 1:1, 2:1 algorithm address-based l3_l4
on switch 2: enable sharing 1:1 grouping 1:1, 2:1 algorithm address-based l3_l4
Then connect ports 1:1 on each stack and 2:1 on each stack.
Cheers
Kevin
					
				
			
			
				
			
			
				
			
			
			
			
			
			
		
		
		
	
	
	
Yes this is entirely possible, just create a sharing group on each stack with members in either switch, for example:
On switch 1: enable sharing 1:1 grouping 1:1, 2:1 algorithm address-based l3_l4
on switch 2: enable sharing 1:1 grouping 1:1, 2:1 algorithm address-based l3_l4
Then connect ports 1:1 on each stack and 2:1 on each stack.
Cheers
Kevin
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‎01-12-2016 12:03 PM
			
				
					
					
						Thanks for joining the Hub Kevin.  Great to have you.
Already helping the community. Impressive!
					
				
			
			
				
			
			
				
			
			
			
			
			
			
		
		
		
	
	
	
Already helping the community. Impressive!