Disabling an Interface from Sending Update Packets

Context

Routing loops can be avoided by disabling interfaces from sending Update packets.

There are two ways to prevent interfaces from sending Update packets:

Suppress an interface in the RIP process view.
Disable an interface from sending RIP packets in the interface view.

The configuration in the RIP process view has a higher priority than the configuration in the interface view.

Procedure

Configuration in a RIP process view
1. Run system-view
  The system view is displayed.
2. Run rip [ process-id ]
  The RIP view is displayed.
3. Run one of the following commands depending on the site requirements:
  Run silent-interface all
  
  All interfaces are disabled from sending Update packets.
  
  Run silent-interface interface-type interface-number
  
  An interface is disabled from sending Update packets,
  
  You can set an interface to silent so that it only receives Update packets to update its routing table. The silent-interface command takes precedence over the undo rip output command in the interface view.
  
  By default, an interface can receive and send Update packets.
Configuration in the interface view
1. Run system-view
  The system view is displayed.
2. Run interface interface-type interface-number
  The interface view is displayed.
3. (Optional) On an Ethernet interface, run undo portswitch
  The interface is switched to Layer 3 mode.
  
  By default, an Ethernet interface works in Layer 2 mode.
  
  Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support switching between Layer 2 and Layer 3 modes.
4. Run undo rip output
  The interface is disabled from sending RIP Update packets.
  
  By running this command, you can determine whether to send RIP Update packets on an interface. The silent-interface command takes precedence over the undo rip output command. By default, an interface is allowed to send RIP Update packets.