What Are Protected Ports; What Is Link Local Protocol Filtering - Dell M6220 User Configuration Manual

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configured limit is 10%, this is converted to ~25000 PPS, and this PPS limit

is set in the hardware. You get the approximate desired output when 512 bytes

packets are used.

What are Protected Ports?

The switch supports up to three separate groups of protected ports. Traffic

can flow between protected ports belonging to different groups, but not

within the same group.

A port can belong to only one protected port group. You must remove an

interface from one group before adding it to another group.

Port protection occurs within a single switch. Protected port configuration

does not affect traffic between ports on two different switches. No traffic

forwarding is possible between two protected ports.

The Link Local Protocol Filtering (LLPF) feature can help troubleshoot

network problems that occur when a network includes proprietary protocols

running on standards-based switches. LLPF allows a PowerConnect

M6220/M6348/M8024/M8024-k switch to filter out various Cisco proprietary

protocol data units (PDUs) and/or ISDP if problems occur with these

protocols running on standards-based switches. If certain protocol PDUs

cause unexpected results, LLPF can be enabled to prevent those protocol

PDUs from being processed by the switch.

The LLPF feature can be configured per-port to block any combination (or

all) of the following PDUs:

Industry Standard Discovery Protocol (ISDP)

VLAN Trunking Protocol (VTP)

Dynamic Trunking Protocol (DTP)

UniDirectional Link Detection (UDLD)

Port Aggregation Protocol (PAgP)

Shared Spanning Tree Protocol (SSTP)

Configuring Port-Based Traffic Control

M8024 M6348 M8024-k