08-02-2007 04:17 PM - edited 03-09-2019 06:31 PM
HostA is connecting in L2 switch. When host A sent out a packet,is the packet broadcast to all hosts of the vlan? If no host of the L2 switch reply, then is it will forwarded to the Gateway?
08-02-2007 04:36 PM
Is this a VLAN (native) within a switch or a trunked VLAN going across multiple routers?
08-02-2007 06:40 PM
What differences between native vlan and trunked vlan?
Anyway, there is a connection for this L2 switch to the Gateway.
08-03-2007 09:42 AM
Generally speaking, and making a lot of assumptions about the details...no.
A unicast packet will go directly to either:
1) the MAC address of a host on the same VLAN
2) the MAC address of a router that can get to that host (including a default gateway)
However, if a switch receives a frame with a destination MAC not in its CAM table, it will send the frame out on all ports.
08-06-2007 08:43 AM
Yes, if Switch don't have a mac address in its CAM then it will broadcast to all ports on a vlan including gateway.
Check this link,
http://www.cisco.com/en/US/tech/tk389/tk390/technologies_tech_note09186a00800a7af3.shtml#switchtechs
Please rate if that helps
Regards,
~JG
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