Alcatel Carrier Internetworking Solutions Switch/Router 用户手册

Page 17-41

To disable the SAP feature, use the 

 command as shown:

1. Enter the 

 at the system prompt.

2. The following message is displayed:

Enter 

 and press 

.

3. The following message is displayed:

Enter a 

 to remove the configured filters, or an 

 to keep configured filters, and press 

. See Configuring SAP Filtering on page 17-41 for information on how to set up a 

SAP filter.

4. Another message is displayed confirming the deactivation of the SAP filtering feature:

Once 

SAP

 filtering is activated, it is necessary to configure the filter value. This value is 

compared to the value of the packets 

DSAP

 and 

SSAP

 fields. Filters consist of 4 alphanumeric 

bits, 2 for the 

DSAP

 and 2 for 

SSAP

. After enabling 

SAP

 filtering, another column is added to 

the src command, and four prompts are added to the ring configuration options.

To configure the filter value:

1. Enter the 

 command at the system prompt. The following screen is displayed:

2. Enter the index number (on the far left) for the ring you want to filter. 

3. Several prompts for configuring the ring are displayed. Follow the prompts and enter 

the values required, or accept the current values if the ring is already configured. The 
following prompt is shown:

Enter the SAP value that the first deny filter should screen. Any packet matching this filter 
will be rejected. Excepting the default of 

 is the same as not having a filter.