【資料名稱】：MEF_22.1Metro Ethernet Forum.pdf

【資料作者】：MEF

【資料日期】：January 2012

【資料語言】：英文

【資料格式】：DOC

【資料目錄和簡介】：

7.Mobile Backhaul Service Model ................................................................................ 11
7.1Service Model Use Cases.......................................................................................... 12
7.1.1Use Case 1: RAN CE with TDM Demarcation............................................................12
7.1.1.1Specific Requirements related to Use Case 1: .........................................................13
7.1.2Use Case 2: RAN CE with Ethernet (MEF UNI) Demarcation ......................................13
7.1.3Common Requirements related to Use Cases 1 and 2...................................................14
7.2Applying MEF Service Definitions to Mobile Backhaul............................................. 15
7.2.1Ethernet Private Line Service...................................................................................16
7.2.2Ethernet Virtual Private Line Service........................................................................17
7.2.3Ethernet Private LAN Service..................................................................................18
7.2.4Ethernet Virtual Private LAN Service .......................................................................19
7.2.5Ethernet Private Tree Service...................................................................................20
7.2.6Ethernet Virtual Private Tree Service........................................................................21
8.Management Model for Mobile Backhaul Service..................................................... 22
8.1Ethernet OAM.......................................................................................................... 22
8.2Service OAM............................................................................................................ 23
9.Resiliency related Performance Attributes for EVC ................................................. 24
9.1Short Term Disruptions............................................................................................. 25
9.2Diversity................................................................................................................... 26
9.2.1ETH-layer Diversity...............................................................................................27
9.2.2Availability for Diverse Group.................................................................................28
10.UNI Requirements ..................................................................................................... 29
10.1UNI Type ................................................................................................................. 29
10.2GIWF‟s UNI Requirements....................................................................................... 30
10.3UNI Resiliency......................................................................................................... 31
10.4UNI PHY for Synchronization Service....................................................................... 31
10.4.1UNI PHY with Synchronous mode ...........................................................................32
10.4.2ESMC Protocol (L2CP) on UNI PHY .......................................................................33
10.4.3QL process support on UNI PHY in Synchronous mode...............................................34
10.5UNI Service Attributes.............................................................................................. 35
10.5.1VLAN based MEF 6.1 Services................................................................................36
11.EVC Requirements .................................................................................................... 39
11.1Maximum Number of UNIs....................................................................................... 39
11.2EVC MTU................................................................................................................ 40
11.3Set of ordered UNI pairs............................................................................................ 40
11.4EVC Performance..................................................................................................... 40
11.4.1Performance for Synchronization Traffic Class...........................................................41
11.4.2Performance with MEN Resiliency...........................................................................42
11.4.3Performance with RAN Resiliency ...........................................................................42
11.5Class of Service for Mobile Backhaul........................................................................ 44
11.5.1CoS Names...........................................................................................................45
11.5.2CoS Performance Objectives (CPO)..........................................................................48
11.6EVC per UNI and per EVC Service Attributes........................................................... 50
11.6.1VLAN based MEF 6.1 Services................................................................................51
11.6.2Port based MEF 6.1 Services ...................................................................................53
12.Synchronization ......................................................................................................... 55
12.1Performance of synchronization architecture.............................................................. 57
12.2Packet Based Methods .............................................................................................. 58
12.2.1Network (UNI-N) Interface Limits for Packet based Methods.......................................59
12.2.2Network (UNI-N) Interface Limits for Packet based Methods – Special Case..................59
12.2.3CES timing requirements ........................................................................................59
12.2.3.1 Network (TDM Interface) Interface Limits at Output of GIWF...................................60
12.2.3.2 Network (TDM Interface) Interface Limits at Input of GIWF .....................................60
12.3Synchronous Ethernet Methods................................................................................. 60
12.3.1Network (UNI-N) Interface Limits for Synchronous Ethernet Methods ..........................61
12.3.2Network (UNI-N) Interface Limits - Special Cases......................................................61