On a switch, if a unique VLAN ID appears on more than one trunked
interface, that VLAN is part of the same layer 2 network and broadcast
domain across all interfaces where it appears, based on the VLAN number.
Is this also true on a router? That is, if I have the following
configuration, what happens? Do VLAN 2 on switches connected to
both interfaces see each other?
interface FastEthernet0/0.2
description VLAN 2 to switch A
encapsulation isl 2
ip address 192.168.1.254 255.255.255.0
no ip redirects
no ip directed-broadcast
interface FastEthernet0/1.2
description VLAN 2 to switch B
encapsulation isl 2
ip address 192.168.2.254 255.255.255.0
no ip redirects
no ip directed-broadcast
Two separate subinterfaces of two separate physical interfaces connected
to two different LANs, but with the same ISL encapsulation "color". Are
they bridged? Would the IP address ranges both appear on both LANs?
Can't find this in CCO anywhere.
--
Jay Hennigan - Network Administration - [EMAIL PROTECTED]
NetLojix Communications, Inc. NASDAQ: NETX - http://www.netlojix.com/
WestNet: Connecting you to the planet. 805 884-6323
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