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Link Aggregation between HP FlexFabric 5700 and Cisco Switches
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03-06-2017 06:26 AM
03-06-2017 06:26 AM
Hi there,
We are trying to link together our Cisco Distrinution switches to new Hp Flex Fabrics that we will have at our datacentre and so far we are struggling with getting this to work.
The switches that we have are 2 x HP FlexFabric 5700 and 4 Cisco 3750.
The initial idea was to trunk? ports 1/0/39, 1/0/40, 2/0/39, 2/0/40 to 4 ports on the Cisco's using GBIC modules. The only VLAN that will need to be accessible is VLAN 40.
Can anyone guide me please on how i could achieve this? everything that I have seemed to try so far hasn't worked.
Cheers
Solved! Go to Solution.
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03-06-2017 05:52 PM
03-06-2017 05:52 PM
SolutionHello!
You need something like this:
SW_5700 interface Bridge-aggregation 1 link-aggregation mode dynamic # interface gigabitEthernet 1/0/1 port link-aggregation group 1 # interface gigabitEthernet 1/0/2 port link-aggregation group 1 ######Link Aggregation using LACP######
SW_3750 interface port-channel 1 ! interface gigabitEthernet 1/10 channel-group 1 mode active ! interface gigabitEthernet 1/11 channel-group 1 mode active ####Link Aggregation using LACP#####
Run the command below on HPE swtich and see if it has established the communication:
display link aggregation verbose
Note: To avoid looping, connect the cables after configuration.
Note: The vlan configuration must be done on aggregation and not on the port individually
ATP FLEXNETWORK V3 | ACSA
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03-08-2017 03:08 AM
03-08-2017 03:08 AM
Re: Link Aggregation between HP FlexFabric 5700 and Cisco Switches
Re: Link Aggregation between HP FlexFabric 5700 and Cisco Switches
Great thanks, this helped us a lot! who knew that you had to do things in certain order and not o define VLANS on the actual ports.
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03-08-2017 05:45 AM - edited 03-08-2017 05:47 AM
03-08-2017 05:45 AM - edited 03-08-2017 05:47 AM
Re: Link Aggregation between HP FlexFabric 5700 and Cisco Switches
Re: Link Aggregation between HP FlexFabric 5700 and Cisco Switches
Not specifically relevant to HP Comware based <--> Cisco IOS based link aggregation (indeed it is relevant to HP Comware based switches <--> HP ProVision based switches link aggregation configuration) but exactly to the order of execution of various Port Trunking configuration steps deployed on Comware based switches: see here (read the "A-Series" paragraph), also Port Trunking steps are explained on the Switch documentation (IIRC Management and Configuration Guide).
Note the initial statement "When configuring a link aggregation on A-Series switches (Comware) the order of execution is very important".
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