topic Re: How to avoid looping as PaloAlto will not participate in STP when used in L2 mode? in General Topics

How to avoid looping as PaloAlto will not participate in STP when used in L2 mode?

Gururaj — Wed, 26 Jun 2013 06:25:46 GMT

Hi All,.

Kindly help me,

How to avoid looping as PaloAlto will not participate in STP when used in L2 mode. Below is the topology.

sw1--------------------sw2------------ router

| |

Sw3-------------------PaloAlto in L2 mode -------------------client pc

Note: PaloAlto has configured in L2 mode not in Vwire mode.

Regards,

Gururaj

UhMayYeah — Wed, 26 Jun 2013 06:54:37 GMT

And

Gregoux — Wed, 26 Jun 2013 09:20:06 GMT

implement only the STP on your swithes. that all

VinceM — Fri, 28 Jun 2013 15:34:27 GMT

Not participate ok but if you are using vWire, Palo is transaprent to stp then if it's impelment on your switches it will be ok.

hshah — Fri, 28 Jun 2013 17:58:25 GMT

Hi Gururaj,

Its very interesting question, Vwire is just a bump in cable, it pass through all Spanning-tree packets.

Topology without Vwire

SW1------------------------SW2

| |

SW3------------------------SW4

Topology with Vwire

SW1-------------Vwire1(PAN)Vwire1-------SW2

| |

SW1-------------Vwire2(PAN)Vwire2-------SW2

Vwire pass through all STP packets from one interface to other, its just a bump in cable. Basically it doesnt change STP Functionality.

if one interface goes down in Vwire then other goes down immediately, So there is no chance of Spanning Tree loop.

Regards,

Hardik Shah