Port Mirroring; Static And Dynamic Mac Address Tables; Link Layer Discovery Protocol (Lldp); Link Layer Discovery Protocol (Lldp) For Media Endpoint Devices - Dell PowerEdge M420 Configuration Manual

Dell powerconnect m8024-k user's configuration guide

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Table of Contents

Port Mirroring

Port mirroring monitors and mirrors network traffic by forwarding copies of

incoming and outgoing packets from up to four source ports to a monitoring

port. The switch also supports flow-based mirroring, which allows you to copy

certain types of traffic to a single destination port. This provides flexibility—

instead of mirroring all ingress or egress traffic on a port the switch can mirror

a subset of that traffic. You can configure the switch to mirror flows based on

certain kinds of Layer 2, Layer 3, and Layer 4 information.

For information about configuring port mirroring, see "Monitoring Switch

Traffic" on page 399.

You can add static entries to the switch's MAC address table and configure

the aging time for entries in the dynamic MAC address table. You can also

search for entries in the dynamic table based on several different criteria.

For information about viewing and managing the MAC address table, see

"Managing the MAC Address Table" on page 847.

The IEEE 802.1AB defined standard, Link Layer Discovery Protocol (LLDP),

allows the switch to advertise major capabilities and physical descriptions.

This information can help you identify system topology and detect bad

configurations on the LAN.

For information about configuring LLDP, settings see "Discovering Network

Devices" on page 663.

The Link Layer Discovery Protocol for Media Endpoint Devices (LLDP-

MED) provides an extension to the LLDP standard for network configuration

and policy, device location, Power over Ethernet management, and inventory

For information about configuring LLDP-MED, settings see "Discovering

Network Devices" on page 663.

Switch Features