SonicOS 7 System

Table of Contents

Configuring Wire Mode with Link Aggregation

Wire Mode over VLAN interfaces does not support Link Aggregation.

Link Aggregation (LAG) is used to bundle multiple links into a single interface to increase bandwidth. To inspect traffic over a LAG interface, a SonicWall firewall can be connected inline, allowing packets sent on one link to be bridged across to the destination transparently. Existing Wire Mode features such as link state propagation are supported. Up to 8 members per LAG are supported.

Wire Mode and Link Aggregation are configured from NETWORK | System > Interfaces. When Link Aggregation is selected on the Edit Interface > Advanced dialog, it also lists unassigned interfaces. You can select member interfaces for each side of the Wire Mode connection. The number of members on each side must be equal. It is recommended that the type and bandwidth size of the member interfaces also match.

To configure Wire Mode with LAG

  1. Navigate to NETWORK | System > Interfaces.
  2. Click the Configure icon for the interface you want to configure. The Edit Interface dialog displays.
  3. From Zone, select the zone you want. The options change.
  4. From Mode / IP Assignment, select Wire Mode (2-Port Wire). The options change again.
  5. From Wire Mode Type, select Secure (Active DPI of Inline Traffic).
  6. From Paired Interface, select the interface to be paired.
  7. From Paired Interface Zone, select the zone of the interface to be paired.
  8. Select the Disable Stateful Inspection option. This option is selected by default.
  9. Optionally, select Enable Link State Propagation if you want it. This option is not selected by default.
  10. Click Advanced.

To continue on Advanced

  1. From Redundant/Aggregate Ports, select Link Aggregation. The options change.
  2. From Aggregate Port, select the port for aggregation.
  3. From Paired Interface Aggregate Port, select the paired port for aggregation.

  4. From Interface MTU, indicate the largest packet size that the interface can forward without fragmenting the packet. The term MTU (Maximum Transmission Unit) refers to the size (in bytes) of the largest packet that a given layer of a communications protocol can pass onwards. MTU parameters usually appear in association with a communications interface (NIC, serial port, and so on). The default MTU size is 1500, however for some networking technologies reducing the MTU size and allowing fragmentation can help eliminate some connectivity problems occurring at the protocol level.

  5. Click OK. The configuration is displayed in the Interface Settings table on NETWORK | System > Interfaces.