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Configuring Protected Ports

The Protected Ports feature assists in Layer 2 security. Ports that are configured to be protected cannot forward traffic to other protected ports in the same group, regardless of having the same VLAN membership. However, protected ports can forward traffic to ports which are unprotected as well as ports in other protected groups. Unprotected ports can forward traffic to both protected and unprotected ports.

Protected Port Configuration

Use the Protected Ports Configuration page to create up to three protected port groups and to assign physical ports to a group. To display the Protected Port Configuration page, click Switching > Protected Ports > Configuration in the navigation menu.

Protected Port Configuration

Protected Port Configuration Fields

Field

Description

Group ID

The protected ports can be combined into a logical group. Traffic can flow between protected ports belonging to different groups, but not within the same group. The selection box lists all the possible protected port Group IDs supported for the current platform. The valid range is platform‐dependent.

Group Name

Assign an optional name to associate with the protected ports group. The name is for identification purposes and can be up to 32 characters long, including blanks. The default is blank.

Protected Port(s)

Specifies the Slot and Port (non-stacking) or Unit, Slot, and Port (stacking) for which port parameters are defined.

Assigning Ports to a Group

  1. Select a group ID from the Group ID field.
  2. From the Protected Port(s) field, click one port to add a single port to the group, or hold the CTRL key and click multiple ports to add more than one port to the group.
  3. Click Submit to apply the changes to the system.

Protected Ports Summary

Use the Protected Ports Summary page to view information about protected port groups and their included ports. To view the Protected Ports Summary page, click Switching > Protected Ports > Summary in the navigation menu.

Protected Ports Summary

Protected Port Configuration Fields

Field

Description

Group ID

Identifies the protected ports group as either Group 0, 1, or 2.

Group Name

Identifies the protected ports group with a user-defined string.

Protected Port(s)

Shows the Slot and Port (non-stacking) or Unit, Slot, and Port (stacking) that are members of the protected ports group.

Click Refresh to reload the page and display the most current information.

See Also

Configuring Switching Information

Configuring DHCP Snooping

Managing VLANs

Private VLANs

Double VLAN (DVLAN) Tunneling

Managing Protocol-Based VLANs

Managing IP Subnet-Based VLANs

Managing MAC-Based VLANs

Voice VLAN Configuration

Creating MAC Filters

Configuring GARP

Configuring Dynamic ARP Inspection

Configuring IGMP Snooping

Configuring IGMP Snooping Queriers

Configuring MLD Snooping

Configuring MLD Snooping Queriers

Creating Port Channels

Viewing Multicast Forwarding Database Information

Configuring Spanning Tree Protocol

Mapping 802.1p Priority

Configuring Port Security

Managing LLDP

Dot1ad Provider Bridging

Dot1ag Connectivity Fault Management (CFM)

Operations and Management

Priority-Based Flow Control

802.1AS

Multiple Registration Protocol Configuration