how connect many switches 3000

[dmc2603]

hi bro,

i have a network, can you help me to configure the switches

i have three 3048 switches

i have 2 requirements:

1 : when main sfp port fails, backup port can run, the faster the better.

2 : all vpcs can ping each other

thank bro

[Joseph W. Doherty]

Since you have 10g and gig, that rules out Etherchannel.

You mentioned vPCs.  Could you clarify that?

If the links are L3, routing can flip from a failed 10g to gig.  As to how fast that happens, depends on two major factors, how fast lost of 10g is detected and how fast the routing protocol reconverges.  Multiple factors influence both.  Would need more information to address options.

[dmc2603]

I only use only 1G ethenet ports for all end-point devices
10 sfp+ ports use to connect to other switches
VPCs ( in the network picture) are end-point devices

[Joseph W. Doherty]

Oops, misread diagram then.  In that case, Etherchannel should be an option.  If so, the one issue, it might be slower to detect a link down if interface doesn't drop.  Also, you need to insure you're using a good LB choice.

[M02@rt37]

Hello @dmc2603 

As Mr Doherty has mentioned, pay close attention to your load balancing method, because defaults like source MAC might not distribute traffic evenly if you only have a few source-destination pairs. So,use port-channel load-balance src-dst-ip or src-dst-ip-port if possible for "better" distribution.