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access port or trunk port ?

mirehteshamali
Level 1
Level 1

hi all.

i have the follwoing senario . Access layer switches are connected vai fiber to core switch .

does sfp's require special configuraiton ?

or do just need to plug and play ?

2)   core-sw----------------------access-layer swithches

we have four vlans 192.168.1.0 - 192.168.4.0 and four switches reserved for each vlan .

what is the best practise shoud i confiugure them as trunk prot or access ports ?

Thanks

2 Accepted Solutions

Accepted Solutions

samavedula_rama
Level 1
Level 1

1) does sfp's require special configuraiton ?

or do just need to plug and play ?

--->> SFPs are hardware devices and operate at Layer1. You don't need any special configuration for them as long as they are compatible with your switch. [Some take GBICs, you know !]. The only configuration change that might be required is Speed/Duplex settings. While you can change Speed/Duplex on copper ports, SFP does not. They only support "speed negotiate" and "Speed Nonegotiate". So, if the line is not up, make sure to flip the cable since they have different xmit and recieve ends.

core-sw----------------------access-layer swithches

we have four vlans 192.168.1.0 - 192.168.4.0 and four switches reserved for each vlan .

what is the best practise shoud i confiugure them as trunk prot or access ports ?

2)  Depends on your topology. If you want redundancy, then I would say go ahead and trunk and use appropriate load balancing with an appropriate Layer2 protocol. Etherchannels would do the job, wherever required

Rama

View solution in original post

Edison Ortiz
Hall of Fame
Hall of Fame

SFP are plug and play.

If you are planning to extend your L2 from the access switches to the Core, and you have multiple Vlans, you must trunk on the port.

View solution in original post

2 Replies 2

samavedula_rama
Level 1
Level 1

1) does sfp's require special configuraiton ?

or do just need to plug and play ?

--->> SFPs are hardware devices and operate at Layer1. You don't need any special configuration for them as long as they are compatible with your switch. [Some take GBICs, you know !]. The only configuration change that might be required is Speed/Duplex settings. While you can change Speed/Duplex on copper ports, SFP does not. They only support "speed negotiate" and "Speed Nonegotiate". So, if the line is not up, make sure to flip the cable since they have different xmit and recieve ends.

core-sw----------------------access-layer swithches

we have four vlans 192.168.1.0 - 192.168.4.0 and four switches reserved for each vlan .

what is the best practise shoud i confiugure them as trunk prot or access ports ?

2)  Depends on your topology. If you want redundancy, then I would say go ahead and trunk and use appropriate load balancing with an appropriate Layer2 protocol. Etherchannels would do the job, wherever required

Rama

Edison Ortiz
Hall of Fame
Hall of Fame

SFP are plug and play.

If you are planning to extend your L2 from the access switches to the Core, and you have multiple Vlans, you must trunk on the port.