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MPLS framing over LAN Switches?

DOMJAHN DAVID
Beginner
Beginner

Hi there,

in order to set up a flexible Lab environment we want to have LAN switches connecting P and PE routers:

PE_Router --- LAN_Switch --- P_Router --- LAN_Switch --- PE_Router

Question: will 3550 or 3750 switches support MPLS data, i. e. will Ethernet frames with

Ethertype 0x8847 (unicast) / 0x8848 will be forwarded by LAN switches?

Thanks a lot in advance,


David

1 ACCEPTED SOLUTION

Accepted Solutions

I am doing the same in my lab with added dot1q tunneling to make those switches transparent. (no need to adjust switch's VLAN config in case of trunking between routers)

View solution in original post

4 REPLIES 4

Reza Sharifi
Hall of Fame Expert Hall of Fame Expert
Hall of Fame Expert

David,

The 3550 or 3750 switches do NOT support MPLS.  3750s supports up to 26 VRF Lite, but that is all.

HTH

Reza

Yes at Layer2 Switches forward packet based on MAC addresses, so in your scenario it should work, you should also increase the MTU to minimum 1550.

I am doing the same in my lab with added dot1q tunneling to make those switches transparent. (no need to adjust switch's VLAN config in case of trunking between routers)

thanks a lot - this should do the job!

Cheers,

David