Re: route field

On Jun 29, 4:16 am, vicky <vikrant.pan...@xxxxxxxxx> wrote:
hi,
    is there is a necessity of route field in layer 2 switch ...

Can you be more specific in describing what you are asking?

For example, to me it souds like you are asking whether layer 2
connectivity MUST be provided within a mesh of layer 2 switches
(bridges).

If that's what you're asking, then it all depends what you want to do.
For example, you can simply not connect these switches together at
all. Just use them as the hub of a star-topology network, for multiple
independent star networks. If you want to allow connectivity among the
many star topologies, you simply install layer 3 routers between them,
as necessary.

VLANs are supposed to emulate physcially separate LANs, or physically
separate catenets (to be more precise). If you build a network of
layer 2 switches in which each Ethernet segment belongs to a different
VLAN, you are emulating a case of multiple independent, physically
disconnected LANs. Your previous example did not permit any
communications between the Ethernet LANs at all, at layer 2.

Bert
.

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