ZyXEL Communications IES-612-51A User Manual

 Chapter 14 xDSL Profiles Setup

IES-612-51A User’s Guide

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Traffic shaping must also be enabled on the subscriber's device in order to use 
upstream policing.

Note that since the IES-612-51A uses ATM QoS, if the subscriber device's upstream shaping 
rate is larger than the IES-612-51A's upstream policing rate, some ATM cells will be 
discarded. In the worst case, none of the Ethernet packets from the CPE will be able to be 
reassembled from AAL5, so no packets from the subscriber's device can be received by the 
IES-612-51A.

The upstream policing feature can be enabled/disabled per PVC. No matter which ATM traffic 
class is used for the PVC's upstream traffic (CBR, VBR, or UBR), the IES-612-51A will drop 
any upstream traffic that violates the specified ATM VC profile.

To open this screen, click Basic Setting, xDSL Profiles Setup, VC Profile.

Figure 58   VC Profile

The following table describes the labels in this screen.

Table 26   VC Profile

Port Profile

Click Port Profile to configure port profiles and assign them to individual ports 
(see 

).

Alarm Profile

Click Alarm Profile to open the Alarm Profile screen where you can configure 
limits that trigger an alarm when exceeded (see 

)

IGMP Filter Profile

Click IGMP Filter Profile to open the IGMP Filter Profile screen where you can 
configure IGMP multicast filter profiles (see 

).

Index

This is the number of the VC profile.

Name

This name identifies the VC profile. 

Encap

This field displays the profile’s type of encapsulation (llc or vc).