Solved: VLAN L3 routing on router or switch ?

lveraza2010 · ‎03-26-2010

Hi

Anyone knows the differences to put the VLAN L3 on the Router’s Ethernet port or a switch with L# capabilities ?.

Thank you.

Reza Sharifi · ‎03-26-2010

Hi Luis,

On the switch you would need to create an SVI and the IP to it. On the router you would need to create a sub-interface and the IP to it.

HTH

Reza

View solution in original post

Reza Sharifi · ‎03-26-2010

Hi Luis,

On the switch you would need to create an SVI and the IP to it. On the router you would need to create a sub-interface and the IP to it.

HTH

Reza

lveraza2010 · ‎03-26-2010

The performance is the same ?.

Jon Marshall · ‎03-26-2010

lveraza2010 wrote:

The performance is the same ?.

No it isn't because a L3 switch routes packets in hardware and a router routes packet in software so with a L3 switch and a router costing roughly the same the L3 switch will vastly outperform the router.

Jon

milan.kulik · ‎03-26-2010

On the other hand, L3 switches usually don't provide all advanced routing features (NAT, e.g.).

BR,

Milan

lveraza2010 · ‎03-26-2010

Ok, thank you to all !

robmccam1 · ‎03-27-2010

The two technologies grew together. The router however tends to offer more WAN interface solutions (WIC) than the L3 switch. There is also the advantage of the logical abstraction that the router provides over the L3 switch.

ucsd92126 · ‎03-31-2010

What about firewall ASA and L3 switch? I plan to add a new VLAN but not sure where to put the routing.

Thanks

Reza Sharifi · ‎03-31-2010

Hi Nelson,

If your switch is a layer-3 switch then add the svi for the new vlan on the switch.

HTH

Reza