Specifications

CHAPTER 4
InterVLAN Routing
Input
1. Receive frame
2. Verify frame integrity
3. Apply inbound VLAN ACL (VLAN Access Control List)
4. Look up destination MAC (Media Address Code)
Output
1. Apply outbound VLAN ACL
2. Apply outbound QoS ACL
3. Select output port
4. Place in port queue
5. Rewrite
6. Forward
A multilayer switch does Layer 3 forwarding when the destination MAC address is one of the switch’s own addresses.
The steps involved in Layer 3 forwarding are as follows:
Input
1. Receive frame.
2. Verify frame integrity.
3. Apply inbound VLAN ACL.
4. Look up destination MAC.
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CCNP SWITCH 642-813 Quick Reference by Denise Donohue