I would think the difference is multi-vlan port can't block inter-vlan
multicast and broadcast, for example, it will forward unknown mac frame or
multiple vlans stp message to all vlans to which it was assigned, but ISL
trunking will restrict MC and BC in it's original vlan, which is good. :)
Hope some Cisco guru point out if what I think is not correct.
thanks,
Daniel.
""Luong, David"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi Group:
>
> Given 2900 series variations of switches and the capability of enabling
> "multi-VLAN" (ie. assigning more than 1 vlan on each port), what are the
> advantages of using ISL-aware NICS instead? One scenario I'm thinking is
> having a server port on switch configure for 2 vlans (vlan 2 + vlan3) for
> users to communicate by means of multi-vlan. If I have the same server
with
> an ISL-aware NIC and enable trunking on that port, what are the
differences?
> Thanks in advance...
>
> David Luong
> CCNP,CCNA,Network+,A+,i-Net+
> Telecommunications Analyst
> Insurance Corporation of B.C.
> Vancouver, B.C CANADA
>
>
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