Cisco Catalyst 4500 Series Software Configuration Guide

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 4 Administering the Switch
Managing the MAC Address Table
Figure 4-2 Disabling MAC Address Learning: Point-to-Point Links
Network Load Balancers
In this topology, you have two devices, one active and one standby. To perform load balancing, both
devices must receive all packets. You could place both devices on the same VLAN. If learning can be
disabled on this VLAN, the packet is flooded and both devices receive all traffic destined to any MAC
address on the VLAN. You also can assign a multicast MAC address to both load balancers to ensure
that all packets reach them. (Figure 4-3).
Figure 4-3 Disabling MAC Address Learning: Network Load Balancers
Core Switch
R
Core Switch
R
Access Switch
External
FW interface
Internal
FW interface
External
FW interface
Internal
FW interface
Distribution
Switch
R
VR
Distribution
Switch
R
VR
VLAN b
VLAN a VLAN a
VLAN c
L2/L3
FW Sync
VLAN c
Access Switch Access Switch
VLAN b
L2
Firewall
L2
Firewall
Security Area = (VLAN b, VLAN c)
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VLAN 10 VLAN 10
Gi 3/2Gi 3/1
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Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E