Alcatel Carrier Internetworking Solutions Switch/Router Manuale Utente

Page 16-9

The following sections describe the parameters shown in the screen on the preceding page.

A textual description (up to thirty characters) for the service created when adding the port to 
a group.

The number of the group to which the port is to be added.

A simple identifier that is added to 

802.1Q

 packets for identification. This value can be any 

number between 1 and 4094. 

If the module uses a Kodiak ASIC, this field is labeled either 

 or 

. 

In single spanning tree mode, it is 

. In multiple spanning tree mode, it is 

. See 

 below for more detailed information.

♦ Important Notes ♦

ESX-K and GSX-K Kodiak ASIC-based modules support 

802.1p

 traffic prioritization. For chassis configurations 

that include only ESX-K, GSX-K and/or WSX series 
modules, 

802.1p

 priority bits can be carried inbound on 

a tagged port (configured with multiple spanning tree 

802.1Q

) across the backplane. This priority information 

is used at the egress port to queue the packet, and is 
sent out in the packet whether the egress port is tagged 
or not. 

The ESX-K and GSX-K modules can also remap incom-
ing priority on an ingress port. If priority remapping 
has been configured, the new priority will be carried 
across the backplane. The priority information is used 
to queue the packet, and is sent out in the packet if the 
egress port is tagged. 

This field allows you to choose either multiple or single spanning tree. This option only 
appears if the module uses 10/100 Ethernet ports. Once you select a type of spanning tree for 
a port, the port automatically retains the spanning tree selection for any other group it is 
added to.