The service attributes, their respective definition and parameters for the MEF-defined
UNI and EVC, which were discussed earlier in this chapter, are shown in Figure 2-24.
Figure 2.24 EVC and UNI service attributes and definitions (source: MEF)
Yes or No. Specifies whether customer VLAN ID is preserved or not. CE-VLAN ID Preservation
Yes or No. Specifies whether customer VLAN CoS (802.1p) is preserved or not. CE-VLAN CoS Preservation
Service Attribute Parameters Service Attribute
Specifies the Frame Delay, Frame Jitter and Frame Loss per EVC or frames within an EVC Identified via their
CE-VLAN CoS (802.1p) value
Service Performance
Discard or Tunnel per Protocol Layer 2 Control Protocol Processing
Specifies whether broadcast frames are Discarded, Delivered Unconditionally or Delivered Conditionally Broadcast Service Frame Delivery
Specifies whether multicast frames are Discarded, Delivered Unconditionally or Delivered Conditionally Multicast Service Frame Delivery
Specifies whether unicast frames are Discarded, Delivered Unconditionally or Delivered Conditionally Unicast Service Frame Delivery
A list of UNIs (identified via the UNI Identifier service attribute) used with the EVC UNI List
Point-to-Point or Multipoint-to-Multipoint EVC Type
None or
.
Pages:
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296