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IEEE 802.1ah PBB (Provider Backbone Bridge) 표준 분석
Analysis on IEEE 802.1ah PBB (Provider Backbone Bridge) Standard
By Netmanias (tech@netmanias.com)
코멘트 (1)
12

doboy 2015-05-15 11:13:46

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Transcript
IEEE 802.1ah PBB(Provider Backbone Bridge)표준분석
2007년10월13일
NMC Consulting Group(tech@netmanias.com)
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

2
BEB
BCB (= PB)
BEB
PB
PEB
CE
CE
CE
PB
PEB
CE
PBBN
PBN
PBN
Legend
BCB (Backbone Core Bridge)
BEB (Backbone Edge Bridge)
PB (Provider Bridge)
PEB (Provider Edge Bridge)
CE (Customer Equipment)
PBBN (Provider Backbone Bridged Network) .as per 802.1ah
PBN (Provider Bridged Network) .as per 802.1ad
a3
802.1ah
a3
802.1ad
a3
802.1D,1Q
a3
802.1ad
a3
802.1D/1Q
a3
802.1D,1Q/1ad/1ah
a3
802.1ah
Untagged/C-tagged
S-tagged
{B-tagged, I-tagged}
S-tagged
Untagged/C-tagged
Untagged/C-tagged/S-tagged/ I-tagged/B-tagged
BCB (= PB)
Customer Address Learned
Backbone Address Learned
Customer Address Learned
4094 CVID Limitation
4094 SVID Limitation
16M I-SID Space grouped w/ 4094 BVID
4094 SVID Limitation
4094 CVID Limitation
Provider Backbone Bridged Network Overview
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

3
Ethernet Encapsulation Overview
Payload
Bit Len
Value

E-Type
16
08-00h

C-VID
12
10

E-Type
16
81-00h

S-VID
12
100

E-Type
16
88-A8h

C-SA
48
C1

C-DA
48
C2

I-SID
24
10,000

E-Type
16
802.1ah
(not assigned)

B-VID
12
4001

E-Type
16
88-A8h

B-SA
48
A

B-DA
48
B

Payload
Bit Len
Value

E-Type
16
08-00h

C-SA
48
C1

C-DA
48
C2

Payload
Bit Len
Value

E-Type
16
08-00h

C-VID
12
10

E-Type
16
81-00h

S-VID
12
100

E-Type
16
88-A8h

C-SA
48
C1

C-DA
48
C2

Customer Frame
Payload
Bit Len
Value

E-Type
16
08-00h

C-VID
12
10

E-Type
16
81-00h

C-SA
48
C1

C-DA
48
C2

802.1Q
Provider Bridge (PB)
802.1ad
802.1ah (B-tagged Frame)
Provider Backbone Bridge (PBB)
Service Instance ID
a3
I-tag TCI Format
a3
S-tag TCI Format
a3
C-tag TCI Format
I-SID (Service Instance ID)
B-VID (Backbone VLAN ID)
B-MAC (Backbone MAC Address; B-SA,B-DA)
C-MAC (Customer MAC Address)
S-VID (Service VLAN ID as per 802.1ad)
Backbone VLAN ID
Service VLAN ID
Customer VLAN ID
C-VID (Customer VLAN ID as per 802.1Q)
PCP (Priority Code Point)
DEI (Drop Eligible Indicator)
a3
B-tag TCI Format
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

4
Concept of Functional Components
S-VID=10
S-VID=11
S-VID=20
S-VID=30
I-Component
B-Component
BCB
Customer Instance Port
Virtual Instance Port
Provider Instance Port
I-tagged Interface
I-tagged Interface
Customer Backbone Port
Provider Network Port
Features
Description in IEEE spec.

B-Comp
An S-VLAN component within a Backbone Edge Bridge that relays frames between Customer Backbone Ports (CBPs) and Provider Network Ports. CBP (I-tagged )와PNP (S-tagged)갂의Frame Switching기능을함.

I-Comp
S-VLAN component로서, PIP (I-tagged)와CIP (Untagged/S-tagged)갂의Frame Switching기능을함

Customer Instance Port (CIP)
A Backbone Edge Bridge Port that receives and transmits frames for a single customer, allowing each frame received from the customer equipment to be discarded or assigned (through relay to a Provider Instance Port) to an I-SID on the basis of the received S-VID.

Virtual Instance Port (VIP)
A Bridge Port, internal to the operation of a Backbone Edge Bridge, that provides for the support of one or more customer S-VLANs by a single instance of virtual media identified by an I-SID. I-SID당하나의VIP가가상적으로PIP 상에생성됨.

Provider Instance Port (PIP)
A Backbone Edge Bridge Port that can transmit or receive frames from or for multiple customers, adding or removing I-TAGs.
PIP는물리포트이고VIP는그물리포트상에설정된논리포트인것과같은관계로규정되어있음. (B-comp와I-comp가별개의device로나누어진경우에는실제로각PIP가별개의물리포트임)

Customer Backbone Port (CBP)
A Backbone Edge Bridge Port that can receive and transmit I-tagged framesfor multiple customers, and translate or assign B-MAC addresses, B-VIDs, and I-SIDs,  on the basis of the received I-SID.

Provider Network Port (PNP)
An S-VLAN component Port on a Provider Bridge that can transmit and receive frames for multiple customers

B-tagged Interface
I-SID=1010
I-SID-1011
I-SID=1020
I-SID=1030
S-VID=31
S-VID=21
B-VID=2001
B-VID=2002
CE
CE
CE
Customer A
Customer B
Customer C
CE
Customer D
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

5
Relationship between a PIP and VIPs
.B-Comp는S-VLAN Comp이지만, Customer Backbone Port라는특별한포트를가짐
.CBP는I-tagged Frame을송,수싞함
.Ingress I-tagged frame은CBP의PVID값에의해B-VID가결정됨
.CBP에설정된I-SID List (table)에없는I-SID를가진frame은filtering됨
.Provider Network Port는이름그대로일반적인Provider Bridge와연결됨
.I-Comp는S-VLAN Comp이지만, Provider Instance Port라는특별한포트를가짐
.Provider Instance Port는I-tagged frame을송,수싞함
.I-SID별로unique한VIP가PIP 내에(상에) 만들어짐(Logical port .Physical Port 관계)
.VIP가frame을보내면PIP가I-tag를붙여서내보냄
.PIP가I-tagged frame을받으면I-tag를제거한후, 해당I-SID값을가지는VIP에게frame을전달
I-Component
B-Component
PNP
VIP#1
VIP#2
PIP
CBP
I-SID=2001
I-SID-2002
I-tagged Interface
B-VID=2002
Muxes frames to a single link
Demuxes frames based on I-SID
One per I-SID
Each VIP has a unique I-SID
CIP
Provider Bridged Network
Provider Backbone Bridged Network
Switches frames based on {B-DA, B-VID}
Switches frames based on {C-DA, S-VID}
Replaces B-DA, if configured so
Removes B-tag
Filters ingress/egress I-SID based on pre-configured Service Instance Table
B-VID determined by PVID
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

6
Customer Service Interfaces
1.Port-based Service Interface
2.S-tagged Service Interface
1)S-tagged Service Interface (1:1 mapping)
2)Bundling S-tagged Service Interface (many-to-one mapping)
3)Transparent Service Interface (all-to-one mapping)
.A special case of many-to-one mapping
3.I-tagged Service Interface
1)Hierarchical PBBN (B-to-I)
2)Peer PBBN (B-to-B)
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

7
그림6
bluecloud3
PBBN
Port-based Service Interface: Introduction
.Transparent LAN Service (TLS) provided by PBBN
.가입자의Untagged/C-tagged Frame을PBBN 내에서transparent하게전달함
.각Customer의CE들을연결하는P-to-P or MP-to-MP EVC마다Service Instance (I-SID)가할당됨
.CE can be 802.1Q bridge, router or end station
.The service provided by this interface forwards all frames without S-tag over the backbone on a single service instance (which can be, in turn, identified by I-SID).
.All frames with an S-tag are discarded by a Port-based service interface.
BEB
CE
BEB
BEB
CE
CE
Port-based SI
Port-based SI
Port-based SI
802.1Q(C-tag) over I-tag over B-tag
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

8
Port-based Service Interface: Functional Behavior
.각CIP당하나의Port-based SI를제공
.각CIP당하나의Unique한S-VID를할당(CIP별PVID값에의해S-VID 구별)
.각S-VID별I-SID를할당(이때I-SID별로VIP가생성)
.S-VID와I-SID가1:1 mapping됨(따라서, CIP와VIP가1:1 pair관계가됨)
.PIP의egress로Frame이나갈때,
.S-tag는삭제되고I-tag만붙어서CBP에보내짐
.B-SA는egress PIP의backbone MAC주소를사용하고, (모든SI 공통)
.B-DA는“Backbone Service Instance Group Address” (Default) 또는PIP가Learn한B-MAC주소(모든SI 공통)
.CBP에서I-tagged Frame을수싞하면, (모든SI 공통)
.CBP는, 수싞된Frame이I-tagged Frame이아니면Discard
.CBP별PVID값에의해B-VID가결정됨
.B-DA가Default Multicast 주소이고, “Service Instance Table”에“default B-MAC주소”(Static Unicast or Multicast)가설정되어있으면, B-DA를Replace함
CE
CE
S-VID=10
S-VID=11
S-VID=20
I-Component
B-Component
BCB
CE
I-tagged Interface
I-tagged Interface
Provider Network Port
B-tagged Interface
I-SID=1010
I-SID-1011
I-SID=1020
B-VID=2001
B-VID=2002
CIP#1
CIP#2
CIP#3
VIP#1
VIP#2
VIP#3
PIP#1
PIP#2
CBP#1
CBP#2
Backbone Edge Bridge (BEB)
PBBN
Customer Network
Customer A
Customer B
Customer C
Port-based SI
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

9
Port-based Service Interface: Principal Configuration Parameters
CE
CE
S-VID=10
S-VID=11
S-VID=20
I-Component
B-Component
BCB
CE
I-tagged Interface
I-tagged Interface
Provider Network Port
B-tagged Interface
I-SID=1010
I-SID-1011
I-SID=1020
B-VID=2001
B-VID=2002
CIP#1
CIP#2
CIP#3
VIP#1
VIP#2
VIP#3
PIP#1
PIP#2
CBP#1
CBP#2
Backbone Edge Bridge (BEB)
Customer A
Customer B
Customer C
Port-based SI
PIP#1 Configuration
Backbone MAC Address = 00aa.bbcc.ddee
VIP-ISID = 1010 (Create VIP#1 with given ISID)
VIP-ISID = 1011 (Create VIP#2 with given ISID)
Service Instance Table

Backbone I-SID
B-VID*
Port I-SID*
Default Backbone MAC Address*

1010
-
-
-

1011
-
-
-

PVID (for port-based B-VLAN classification)
PVID = 2001
Optional Parameters
CBP에서수싞된Frame의B-DA가“Backbone Service Instance Group”이거나Broadcast이면, 이Table상의Default Backbone MAC주소값으로B-DA를Replace함
Acceptable Frame Type
Admit Only Untagged and Priority-tagged frames
PVID
PVID = 10
VLAN Config for S-VID=10
Member Ports = {CIP#1, VIP#1}
TX Untagged Ports = {CIP#1, VIP#1}
VIP parameters

VIP-ISID
Default Backbone Destination
adminPTP

1010
I-SID Group Address
ForceFalse

1011
I-SID Group Address
ForceFalse

Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

10
bluecloud3
PBBN
Port-based Service Interface: Frame Encapsulation for Untagged Customer Frames
CE1
CE3
S-VID=10
S-VID=11
I-Component
B-Component
Port-based SI
I-tagged Interface
B-tagged Interface
I-SID=1010
I-SID-1011
B-VID=2001
CIP#1
CIP#2
VIP#1
VIP#2
PIP#1
CBP#1
Backbone Edge Bridge (BEB)
Customer A (Site 1)
Customer B
PNP#1
Remote BEB
CE2
Customer A (Site 2)
BCB
Port-based SI
Incoming Untagged Frame from Customer A Site 1
CBP 상에I-SID 1010에대해,
Default Backbone MAC주소값= Remote BEB로설정되어있다고가정
Payload

E-Type
IPv4

SA
M1

DA
M2

Payload

E-Type
IPv4

C-SA
M1

C-DA
M2

I-SID
1010

E-Type
802.1ah

B-VID
2001

E-Type
88-A8h

B-SA
PIP1

B-DA
Remote BEB

Payload

E-Type
IPv4

C-SA
M1

C-DA
M2

I-SID
1010

E-Type
802.1ah

B-SA
PIP1

B-DA
Default B-DA

Payload

E-Type
IPv4

SA
M1

DA
M2

Untagged Frame
S-VLAN Tag를붙이지않음
(반대편Edge에서I-SID를보고S-VID를알게됨)
B-tagged Frame
Untagged Frame
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

11
bluecloud3
PBBN
Port-based Service Interface: Frame Encapsulation for C-tagged Customer Frames
CE1
CE3
S-VID=10
S-VID=11
I-Component
B-Component
Port-based SI
I-tagged Interface
B-tagged Interface
I-SID=1010
I-SID-1011
B-VID=2001
CIP#1
CIP#2
VIP#1
VIP#2
PIP#1
CBP#1
Backbone Edge Bridge (BEB)
Customer A (Site 1)
Customer B
PNP#1
Remote BEB
CE2
Customer A (Site 2)
BCB
Port-based SI
Incoming C-tagged Frame from Customer A Site 1
S-VLAN Tag를붙이지않음
(반대편Edge에서I-SID를보고S-VID를복원함)
CBP 상에I-SID 1010에대해,
Default Backbone MAC주소값= Remote BEB로설정되어있다고가정
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

SA
M1

DA
M2

Payload

E-Type
IPv4

C-SA
M1

C-DA
M2

I-SID
1010

E-Type
802.1ah

B-VID
2001

E-Type
88-A8h

B-SA
PIP1

B-DA
Remote BEB

Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

C-SA
M1

C-DA
M2

I-SID
1010

E-Type
802.1ah

B-SA
PIP1

B-DA
Default B-DA

Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

SA
M1

DA
M2

C-tagged Frame
B-tagged Frame
C-tagged Frame
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

12
그림6
bluecloud3
PBBN
.PBBN Provider provides service to PBN providers.
.802.1ad PBN service provider 망의Scalability 제약요소(MAC Learning, S-VID space Limitation)를극복
.PBBN을보유하지않은PBN 사업자를위한Transport Service를S-tagged Interface로제공가능
.3가지S-tagged Service Interface
CE
BEB
CE
S-tagged Frame over I-tag over B-tag
PBN
BEB
PB
PEB
PB
S-tagged SI
PBN
PB
S-tagged SI
PEB
PB
PEB
CE
CE
PEB
Variation
Description

S-tagged SI
one-to-one mapping between S-VIDs and I-SIDs

Bundling S-tagged SI
maps Multiple S-VIDs to a single I-SID for delivery over PBBN

Transparent SI
All-to-one bundling, i.e. all frames are carried across a single service instance.
A port-based interface for Provider Bridge attachment

BCB
S-tagged Service Interface: Introduction
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

13
S-tagged Service Interface: Functional Behavior
.S-tagged SI (One-to-one)
.CE로부터의S-VID값에따라Unique한I-SID를할당(이때I-SID별로VIP가생성)
.PIP .CBP로Frame을보낼때S-tag 제거, I-tag 붙임(반대편BEB에서I-SID값을보고S-VID를복원)
.Bundling S-tagged SI (many-to-one)
.복수개의S-VID를몇그룹으로나누어각그룹별로I-SID를할당
.하나의I-SID 내에여러S-VID가있으므로, S-tag, I-tag를모두붙여주어야반대편BEB가S-VID를알수있음
.PBBN tunnel의양끝BEB는각I-SID에묶일수있는S-VID 집합이동일하여야함
.Transparent SI (all-to-one)
.MAC Learning을하지않음
.(제약사항) I-comp 당하나의CIP, VIP, PIP만가짐.Why? I-Comp의MAC Learning을Disable 시키므로, Port가2개만있어야Switching할수있음
.CIP, VIP의Acceptable Frame Type = “Admit All Frames”
CE
S-VID=10
S-VID=11
I-Component
B-Component
BCB
I-tagged Interface
I-tagged Interface
Provider Network Port
B-tagged Interface
I-SID=1010
I-SID-1011
I-SID=1020
B-VID=2001
B-VID=2002
CIP#1
CIP#2
CIP#3
VIP#1
VIP#2
VIP#5
PIP#1
PIP#3
CBP#1
Backbone Edge Bridge (BEB)
PBBN
Customer PBN
Customer A
Customer B
Customer C
S-tagged SI one-to-one
S-VID=10
S-VID=11
Bundling S-tagged SI
VIP#3
S-VID=20
S-VID=21
S-VID=22
VIP#4
S-VID=22
PIP#2
CBP#2
I-SID=2001
I-SID-2002
I-tagged Interface
Transparent SI
Untagged
S-VID=31
S-VID=32
I-Component
CBP#3
B-VID=2003
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

14
S-VID=32
CE
S-VID=10
S-VID=11
I-Component
B-Component
BCB
I-tagged Interface
I-tagged Interface
PNP#1
B-tagged Interface
I-SID=1010
I-SID-1011
I-SID=1020
B-VID=2001
B-VID=2002
CIP#1
CIP#2
CIP#3
VIP#1
VIP#2
VIP#5
PIP#1
PIP#3
CBP#1
Backbone Edge Bridge (BEB)
Customer A
Customer B
Customer C
S-tagged SI one-to-one
S-VID=10
S-VID=11
Bundling S-tagged SI
VIP#3
S-VID=20
S-VID=21
S-VID=22
VIP#4
S-VID=22
PIP#2
CBP#2
I-SID=2001
I-SID-2002
I-tagged Interface
Transparent SI
S-VID=30
S-VID=31
I-Component
CBP#3
B-VID=2003
S-VID=20
CE
CE
Principal Configuration Parameters: 1) S-tagged Service Interface (one-to-one)
S-VID=32
VLAN Config for S-VID=10
Member Ports = {CIP#1, VIP#1}
TX Untagged Ports = {VIP#1}
VLAN Config for S-VID=11
Member Ports = {CIP#1, VIP#2}
TX Untagged Ports = {VIP#2}
Acceptable Frame TypeAdmit Only VLAN-tagged frames
Acceptable Frame Type
Admit Only Untagged and Priority-tagged frames
PVID
PVID = 10
Acceptable Frame Type
Admit Only Untagged and Priority-tagged frames
PVID
PVID = 11
PIP#1 Configuration
Backbone MAC Address = 00aa.bbcc.ddee
Service Instance Table

Backbone I-SID
B-VID*
Port I-SID*
Default Backbone MAC Address*

1010
-
-
-

1011
-
-
-

PVID (for port-based B-VLAN classification)
PVID = 2001
Optional Parameters
I-CompVLAN Configuration
VLAN Config for B-VID=2001
Member Ports = {PNP#1, CBP#1}
TX Untagged Ports = {CBP#1}
B-Comp VLAN Configuration
CBP에서수싞된Frame의B-DA가I-SID Group 주소이거나Broadcast이면, 이Table상의Default Backbone MAC주소값으로B-DA를Replace함
VIP parameters

VIP-ISID
Default Backbone Destination
adminPTP

1010
I-SID Group Address
ForceFalse

1011
I-SID Group Address
ForceFalse

Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

15
S-VID=32
CE
S-VID=10
S-VID=11
I-Component
B-Component
BCB
I-tagged Interface
I-tagged Interface
PNP#1
B-tagged Interface
I-SID=1010
I-SID-1011
I-SID=1020
B-VID=2001
B-VID=2002
CIP#1
CIP#2
CIP#3
VIP#1
VIP#2
VIP#5
PIP#1
PIP#3
CBP#1
Backbone Edge Bridge (BEB)
Customer A
Customer B
Customer C
S-tagged SI one-to-one
S-VID=10
S-VID=11
Bundling S-tagged SI
VIP#3
S-VID=20
S-VID=21
S-VID=22
VIP#4
S-VID=22
PIP#2
CBP#2
I-SID=2001
I-SID-2002
I-tagged Interface
Transparent SI
S-VID=30
S-VID=31
I-Component
CBP#3
B-VID=2003
S-VID=20
CE
CE
Principal Configuration Parameters: 2) Bundling S-tagged Service Interface (many-to-one)
VLAN Config for S-VID=20
Member Ports = {CIP#2, VIP#3}
TX Untagged Ports = {None}
VLAN Config for S-VID=21
Member Ports = {CIP#2, VIP#3}
TX Untagged Ports = {None}
VLAN Config for S-VID=22
Member Ports = {CIP#2, VIP#4}
TX Untagged Ports = {None}
Acceptable Frame Type
Admit Only VLAN-tagged frames
Service Instance Table

Backbone I-SID
B-VID*
Port I-SID*
Default Backbone MAC Address*

2001
-
-
-

2002
-
-
-

Optional Parameters
PVID (for port-based B-VLAN classification)
PVID = 2002
Acceptable Frame Type
Admit Only VLAN-tagged frames
I-Comp VLAN Configuration
Acceptable Frame Type
Admit Only VLAN-tagged frames
VLAN Config for B-VID=2002
Member Ports = {PNP#1, CBP#2}
TX Untagged Ports = {CBP#2}
B-Comp VLAN Configuration
CBP에서수싞된Frame의B-DA가I-SID constructed multicast이거나Broadcast이면, 이Table상의Default Backbone MAC주소값으로B-DA를Replace함
PIP#2 Configuration
Backbone MAC Address = 00aa.bbcc.ddef
VIP parameters

VIP-ISID
Default Backbone Destination
adminPTP

2001
I-SID Group Address
ForceFalse

2002
I-SID Group Address
ForceFalse

Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

16
S-VID=32
CE
S-VID=10
S-VID=11
I-Component
B-Component
BCB
I-tagged Interface
I-tagged Interface
PNP#1
B-tagged Interface
I-SID=1010
I-SID-1011
I-SID=1020
B-VID=2001
B-VID=2002
CIP#1
CIP#2
CIP#3
VIP#1
VIP#2
VIP#5
PIP#1
PIP#3
CBP#1
Backbone Edge Bridge (BEB)
Customer A
Customer B
Customer C
S-tagged SI one-to-one
S-VID=10
S-VID=11
Bundling S-tagged SI
VIP#3
S-VID=20
S-VID=21
S-VID=22
VIP#4
S-VID=22
PIP#2
CBP#2
I-SID=2001
I-SID-2002
I-tagged Interface
Transparent SI
Untagged
S-VID=31
I-Component
CBP#3
B-VID=2003
S-VID=20
CE
CE
Principal Configuration Parameters: 3) Transparent Service Interface (all-to-one)
VLAN Config for B-VID=2003
Member Ports = {PNP#1, CBP#3}
TX Untagged Ports = {CBP#3}
B-Comp VLAN Configuration
VLAN Config for S-VID=30
Member Ports = {CIP#3, VIP#5}
TX Untagged Ports = {CIP#3, VIP#5}
VLAN Config for S-VID=31
Member Ports = {CIP#3, VIP#5}
TX Untagged Ports = {None}
VLAN Config for S-VID=32
Member Ports = {CIP#3, VIP#5}
TX Untagged Ports = {None}
I-Comp Configuration
Acceptable Frame Type
Admit All frames
PVID
PVID = 30
PVID (for port-based B-VLAN classification)
PVID = 2003
Service Instance Table

Backbone I-SID
B-VID*
Port I-SID*
Default Backbone MAC Address*

1020
-
-
-

Optional Parameters
MAC Address Learning
MAC_Learning = DISABLED
CBP에서수싞된Frame의B-DA가I-SID constructed multicast이거나Broadcast이면, 이Table상의Default Backbone MAC주소값으로B-DA를Replace함
PIP#3 Configuration
Backbone MAC Address = 00aa.bbcc.ddf0
VIP-ISID = 1020 (Create VIP#5 with given ISID)
VIP parameters

VIP-ISID
Default Backbone Destination
adminPTP

1020
I-SID Group Address
ForceFalse

Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

17
Customer PBN 2
CE2
bluecloud3
PBBN
Remote BEB
PB
PB
S-VID=10
S-VID=11
I-Component
B-Component
BCB
I-tagged Interface
PNP#1
B-tagged Interface
I-SID=1010
I-SID-1011
B-VID=2001
CIP#1
VIP#1
VIP#2
PIP#1
CBP#1
Backbone Edge Bridge (BEB)
Customer PBN 1
1:1 SSI
CE1
1:1 SSI
Incoming S-tagged Frame from Customer PBN 1
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

C-SA
M1

C-DA
M2

I-SID
1010

E-Type
802.1ah

B-VID
2001

E-Type
88-A8h

B-SA
PIP1

B-DA
Remote BEB

S-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

SA
M1

DA
M2

PEB
PEB
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

SA
M1

DA
M2

S-VLAN Tag 제거됨
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

C-SA
M1

C-DA
M2

I-SID
1010

E-Type
802.1ah

B-SA
PIP1

B-DA
Default B-DA

I-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

SA
M1

DA
M2

B-tagged Frame
S-VLAN Tag 복원됨
CBP 상에I-SID 1010에대해,
Default Backbone MAC주소값= Remote BEB로설정되어있다고가정
Frame Encapsulation: 1) S-tagged SI (one-to-one)
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

18
Frame Encapsulation: 2) Bundling S-tagged SI (Many-to-one)
Customer PBN 2
CE2
bluecloud3
PBBN
Remote BEB
PB
PB
I-Component
B-Component
BCB
PNP#1
B-tagged Interface
Backbone Edge Bridge (BEB)
Customer PBN 1
BSSI
CE1
BSSI
PEB
PEB
CIP#2
VIP#3
VIP#4
S-VID=22
PIP#2
CBP#2
I-SID=2001
I-SID-2002
I-tagged Interface
S-VID=20
B-VID=2002
Incoming S-tagged Frame from Customer PBN 1
CBP 상에I-SID 2001에대해,
Default Backbone MAC주소값= Remote BEB로설정되어있다고가정
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
20

E-Type
88-A8h

C-SA
M1

C-DA
M2

I-SID
2001

E-Type
802.1ah

B-VID
2002

E-Type
88-A8h

B-SA
PIP2

B-DA
Remote BEB

S-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
20

E-Type
88-A8h

SA
M1

DA
M2

Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
20

E-Type
88-A8h

SA
M1

DA
M2

S-VLAN Tag 유지
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
20

E-Type
88-A8h

C-SA
M1

C-DA
M2

I-SID
2001

E-Type
802.1ah

B-SA
PIP2

B-DA
Default B-DA

I-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
20

E-Type
88-A8h

SA
M1

DA
M2

B-tagged Frame
S-tagged Frame
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

19
Frame Encapsulation: 3) Transparent SI (all-to-one) .Case of S-tagged Frame
Customer PBN 2
CE2
bluecloud3
PBBN
Remote BEB
PB
PB
I-Component
B-Component
BCB
PNP#1
B-tagged Interface
Backbone Edge Bridge (BEB)
Customer PBN 1
TSI
CE1
TSI
PEB
PEB
Incoming S-tagged Frame from Customer PBN 1
CBP 상에I-SID 1020에대해,
Default Backbone MAC주소값= Remote BEB로설정되어있다고가정
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
31

E-Type
88-A8h

C-SA
M1

C-DA
M2

I-SID
1020

E-Type
802.1ah

B-VID
2002

E-Type
88-A8h

B-SA
PIP3

B-DA
Remote BEB

S-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
31

E-Type
88-A8h

SA
M1

DA
M2

Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
31

E-Type
88-A8h

SA
M1

DA
M2

S-VLAN Tag 유지
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
31

E-Type
88-A8h

C-SA
M1

C-DA
M2

I-SID
1020

E-Type
802.1ah

B-SA
PIP3

B-DA
Default B-DA

I-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
31

E-Type
88-A8h

SA
M1

DA
M2

B-tagged Frame
S-tagged Frame
I-tagged Interface
I-SID=1020
CIP#3
VIP#5
PIP#3
CBP#3
B-VID=2003
S-VID=32
S-VID=30
S-VID=31
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

20
Frame Encapsulation: 3) Transparent SI (all-to-one) .Case of Untagged Frame
Customer PBN 2
CE2
bluecloud3
PBBN
Remote BEB
PB
PB
I-Component
B-Component
BCB
PNP#1
B-tagged Interface
Backbone Edge Bridge (BEB)
Customer PBN 1
TSI
CE1
TSI
PEB
PEB
Incoming Untagged Frame from Customer PBN 1
CBP 상에I-SID 1020에대해,
Default Backbone MAC주소값= Remote BEB로설정되어있다고가정
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

C-SA
M1

C-DA
M2

I-SID
1020

E-Type
802.1ah

B-VID
2002

E-Type
88-A8h

B-SA
PIP3

B-DA
Remote BEB

Untagged Frame (C-tagged)
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

SA
M1

DA
M2

Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

SA
M1

DA
M2

Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

C-SA
M1

C-DA
M2

I-SID
1020

E-Type
802.1ah

B-SA
PIP3

B-DA
Default B-DA

I-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

SA
M1

DA
M2

B-tagged Frame
I-tagged Interface
I-SID=1020
CIP#3
VIP#5
PIP#3
CBP#3
B-VID=2003
S-VID=32
S-VID=30
S-VID=31
Untagged Frame (C-tagged)
S-VID 30에대해
TX Untagged Port임
Remote BEB는S-VID 30이아닌다른값을사용해도됨(어차피untagged이므로)
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

21
PBB over PBB
I-tagged SI (B-to-I)
BEB
BCB
PBBN
BEB
BEB
BEB
I-tagged SI (B-to-I)
I-tagged SI (B-to-B)
BEB
BEB
I-tagged SI (B-to-I)
Hierarchical PBBNs
Peer PBBNs
2
1
I-tagged Service Interface: Introduction
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

22
BCB
I-Component
I-tagged Service Interface: Functional Behavior 1) Hierarchical Interconnection
.PBBN 갂의Hierarchical Interconnection .B-comp와I-Comp 갂의연결
.Provides Hierarchical Ethernet NNI (MEF Hierarchical E-NNI) between different operators
.Each additional hierarchy adds an additional encapsulation layer.
.“The nesting depth should be 5 deep or less”.
I-Component
B-Component
BCB
I-tagged Interface
B-tagged Interface
I-SID=5000
B-VID=1001
CIP#1
VIP#1
PIP#1
Provider BEB
Provider PBBN
Customer PBBN
When Transparent SI toward internal PBBN is assumed
B-VID=10
B-VID=11
B-VID=12
CBP#1
Customer-A BEB
PNP#1
I-tagged SI
BCB
S-VID=10
S-VID=11
I-tagged Interface
I-SID=6000
I-SID-6001
CIP#1
VIP#1
VIP#2
PIP#1
CBP#2
When 1:1 SSI toward internal PBBN is assumed
B-VID=10
B-VID=11
B-VID=1002
Customer-B BEB
Customer-A’s
PBBN
Customer-B’s
PBBN
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

23
I-tagged Service Interface: Functional Behavior 2) Peer Interconnection
.PBBN 갂의flat Interconnection .B-comp와B-Comp 갂의연결
.Provides Peer Ethernet NNI (MEF Peer E-NNI) between different operators
.The I-SID used over the E-NNI must be agreed to mutually by both providers.
.B-VIDs are independently assigned by each provider.
.At each end of the E-NNI the CBP may optionally
.“translate the I-SID used over the E-NNI to a new I-SID for use within its own PBBN”
.“translate the B-MAC addresses used over the E-NNI to B-MAC addresses used within the PBBNs”
.CBP의Egress 단에서, B-DA를“Service Instance Group Address”로변경할수있음(PBBN 갂의B-MAC 분리)
.또, B-SA도Replace할수있나? Spec 상에는없는데…
Peer PBBN
Peer PBBN
I-tagged SI
B-Component
BCB
I-tagged Interface
B-tagged Interface
I-SID=5000
B-VID=1001
BEB
CBP#1
PNP#1
I-tagged Interface
I-SID=6000
I-SID-6001
CBP#2
B-VID=1002
B-Component
BCB
B-tagged Interface
B-VID=2020
BEB
CBP#1
PNP#1
CBP#2
B-VID=2021
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

24
B-Component
BCB
B-tagged Interface
Provider BEB
PNP#1
BCB
I-Component
S-VID=10
S-VID=11
I-tagged Interface
I-SID=6000
I-SID-6001
CIP#1
VIP#1
PIP#1
CBP#1
When 1:1 SSI toward internal PBBN is assumed
B-VID=10
B-VID=11
B-VID=1002
Customer BEB
Principal Configuration Parameters of I-tagged SI: 1) Hierarchical Interconnection
VLAN Config for B-VID=1002Member Ports = {PNP#1, CBP#1}TX Untagged Ports = {CBP#1}
B-BEB VLAN Configuration
Service Instance Table

Backbone I-SID
B-VID*
Port I-SID*
Default Backbone MAC Address*

6000
-
-
-

6001

PVID (for port-based B-VLAN classification)
PVID = 1002
Optional Parameters
Acceptable Frame Type
Admit Only VLAN-tagged frames
VIP#2
Acceptable Frame Type
Admit Only VLAN-tagged frames
VLAN Config for S-VID=10
Member Ports = {CIP#1, VIP#1}
TX Untagged Ports = {None}
VLAN Config for S-VID=11
Member Ports = {CIP#1, VIP#2}
TX Untagged Ports = {None}
I-BEB VLAN Configuration
PIP#1 Configuration
Backbone MAC Address = 00aa.bbcc.ddee
VIP-ISID = 6000 (Create VIP#1 with given ISID)
VIP-ISID = 6001 (Create VIP#2 with given ISID)
VIP parameters

VIP-ISID
Default Backbone Destination
adminPTP

6000
I-SID Group Address
ForceFalse

6001
I-SID Group Address
ForceFalse

Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

25
Principal Configuration Parameters of I-tagged SI: 2) Peer Interconnection
B-Component
BCB
I-tagged Interface
B-tagged Interface
I-SID=5000
B-VID=1001
BEB
CBP#1
PNP#1
I-tagged SI
I-tagged Interface
I-SID=6000
I-SID-6001
CBP#2
B-VID=1002
B-Component
BCB
B-tagged Interface
B-VID=2020
BEB
CBP#1
PNP#1
CBP#2
B-VID=2021
Provider A
Provider B
VLAN Config for B-VID=2020
Member Ports = {CBP#1, PNP#1}
TX Untagged Ports = {CBP#1}
VLAN Config for B-VID=2021
Member Ports = {CBP#2, PNP#1}
TX Untagged Ports = {CBP#2}
B-BEB VLAN Configuration
Acceptable Frame Type
Admit Only VLAN-tagged frames
VLAN Config for B-VID=1001
Member Ports = {PNP#1, CBP#1}
TX Untagged Ports = {CBP#1}
VLAN Config for B-VID=1002
Member Ports = {PNP#1, CBP#2}
TX Untagged Ports = {CBP#2}
B-BEB VLAN Configuration
Service Instance Table

Backbone I-SID
B-VID*
Port I-SID*
Default Backbone MAC Address*

5000
-
-
-

Optional Parameters
Acceptable Frame Type
Admit Only VLAN-tagged frames
Service Instance Table

Backbone I-SID
B-VID*
Port I-SID*
Default Backbone MAC Address*

6000
-
-
-

6001

Optional Parameters
PVID (for port-based B-VID Classification)

Port
PVID

CBP#1
1001

CBP#2
1002

PVID (for port-based B-VID Classification)

Port
PVID

CBP#1
2020

CBP#2
2021

Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

26
CE2
bluecloud3
PBBN
Customer PBBN 1
I-tagged SI
CE1
Incoming I-tagged Frame from Customer PBBN
B-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

C-SA
CE1

C-DA
CE2

I-SID
700

E-Type
802.1ah

B-VID
10

E-Type
88-A8h

B-SA
BEB1

B-DA
BEB2

BEB1
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

C-SA
CE1

C-DA
CE2

I-SID
700

E-Type
802.1ah

B-VID
10

E-Type
88-A8h

C-SA
BEB1

C-DA
BEB2

I-SID
6000

B-SA
PIP1

B-DA
Default B-DA

I-tagged Frame
CBP 상에I-SID 6000에대해,
Default Backbone MAC주소값= Remote BEB로설정되어있다고가정
B-Component
BCB
B-tagged Interface
Provider BEB
PNP#1
BCB
I-Component
S-VID=10
S-VID=11
I-tagged Interface
I-SID=6000
CIP#1
VIP#1
PIP#1
CBP#1
Transparent SSI toward internal PBBN is assumed.
B-VID=10
B-VID=11
B-VID=1002
Customer BEB
Customer PBBN 2
Remote BEB
BEB2
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

C-SA
CE1

C-DA
CE2

I-SID
700

E-Type
802.1ah

B-VID
10

E-Type
88-A8h

C-SA
BEB1

C-DA
BEB2

I-SID
6000

B-VID
1002

E-Type
88-A8h

B-SA
PIP1

B-DA
Remote BEB

B-tagged Frame
I-tagged SI
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

C-SA
CE1

C-DA
CE2

I-SID
700

E-Type
802.1ah

B-VID
10

E-Type
88-A8h

B-SA
BEB1

B-DA
BEB2

B-tagged Frame
Additional Encapsulation
Additional Encapsulation
Frame Encapsulation: 1) Hierarchical Interconnection
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

27
Frame Encapsulation: 2) Peer Interconnection
CE1
Incoming I-tagged Frame from Peer PBBN
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

C-SA
CE1

C-DA
CE2

I-SID
5000

E-Type
802.1ah

B-SA
BEB1

B-DA
BEB2

I-tagged Frame
두Peer PBBN Provider 갂경계에서I-SID Translation을하는것으로가정함
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

C-SA
CE1

C-DA
CE2

I-SID
1000

E-Type
802.1ah

B-VID
1001

E-Type
88-A8h

B-SA
BEB1

B-DA
BEB2

B-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

C-SA
CE1

C-DA
CE2

I-SID
1000

E-Type
802.1ah

B-VID
1001

E-Type
88-A8h

B-SA
BEB1

B-DA
BEB2

B-tagged Frame
B-Component
I-tagged Interface
I-SID=5000
B-VID=1001
BEB
CBP#1
PNP#1
I-tagged Interface
I-SID=6000
I-SID-6001
CBP#2
B-VID=1002
B-Component
BCB
B-tagged Interface
B-VID=2020
BEB
CBP#1
PNP#1
CBP#2
B-VID=2021
Customer PBN
CE2
BEB2
PB
PB
Customer PBN 1
TSI
PEB
PEB
BCB
B-tagged Interface
Provider A PBBN
BEB1
I-tagged SI
B-tagged Frame
Payload

E-Type
IPv4

C-VID
2

E-Type
81-00h

S-VID
10

E-Type
88-A8h

C-SA
CE1

C-DA
CE2

I-SID
5000

E-Type
802.1ah

B-VID
2020

E-Type
88-A8h

B-SA
BEB1

B-DA
BEB2

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28
Dynamic Backbone Address Learning Method
1.Learning at PIP in case of P-to-P Service Instance(adminPtP = ForceTrue)
2.Learning at PIP with Connection_IDis in use
.Implementation of (optional) CID feature is required
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

29
Backbone Address Learning at PIP: (1) P-to-P Service Instance
S-VID=10
S-VID=11
I-Component
B-Component
PNP#1
I-SID=1010
I-SID-1011
B-VID
2001
CIP#1
VIP#1
VIP#2
PIP#1
CBP#1
Backbone Edge Bridge (BEB)
BCB
BCB
BCB
BCB
PIP MAC = BM1
PIP MAC = BM2
C-SA=A
C-DA=BCAST
I-SID=1010
BVID=2001
BM1
Default B-DA

SVID=10
A
BCAST

C-SA=A
C-DA=BCAST
I-SID=1010
BM1
Default B-DA

SVID=10
A
BCAST

A
BCAST

1107378_L1
End station (A)
1107378_L1
End station (B)
B-Comp MAC Address Table

B-MAC
B-VID
Port

BM1
2001
CBP#1

-
-
-

B-Comp MAC Address Table

B-MAC
B-VID
Port

BM1
2001
PNP#1

-
-
-

3
4
1.Backbone Service Instance가Point-to-Point 연결일경우, 두end-point(양끝BEB의VIP)에adminPointToPoint = ForceTrue 로설정
2.PIP가수싞한Frame의B-SA를VIP의default Backbone Destination 값에덮어씀(B-SA Learning)
VIP parameters

VIP-ISID
Default Backbone Destination
adminPTP

1010
01xx.xx00.03F2
ForceTrue

1011
01xx.xx00.03F3
ForceTrue

2
I-Comp MAC Address Table

C-MAC
S-VID
Port
CID

A
10
CIP#1
N/A

-
-
-
-

1
VIP parameters

VIP-ISID
Default Backbone Destination
adminPTP

1010
BM1
ForceTrue

1011
01xx.xx00.03F3
ForceTrue

MAC Address Table

C-MAC
S-VID
Port
CID

B
10
CIP#1
N/A

A
10
VIP#1
-

6
5
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

30
Backbone Address Learning at PIP: (2) using Connection_ID
S-VID=10
S-VID=11
I-Component
B-Component
PNP#1
I-SID=1010
I-SID-1011
B-VID=2001
CIP#1
VIP#1
VIP#2
PIP#1
CBP#1
Backbone Edge Bridge (BEB)
BCB
BCB
BCB
BCB
PIP MAC = BM1
PIP MAC = BM2
C-SA=A
C-DA=BCAST
I-SID=1010
BVID=2001
BM1
Default B-DA

SVID=10
A
BCAST

C-SA=A
C-DA=BCAST
I-SID=1010
BM1
Default B-DA

Connection_ID Table

CID
B-MAC
I-SID

1
BM1
1010

-
-
-

MAC Address Table

C-MAC
S-VID
Port
CID

B
10
CIP#1
N/A

A
10
VIP#1
1

SVID=10
A
BCAST

A
BCAST

#NAME?
1107378_L1
End station (A)
1107378_L1
End station (B)
I-Comp MAC Address Table

C-MAC
S-VID
Port
CID

A
10
CIP#1
N/A

-
-
-
-

Connection_ID Table

CID
B-MAC
I-SID

-
-
-

-
-
-

B-Comp MAC Address Table

B-MAC
B-VID
Port

A
2001
CBP#1

-
-
-

B-Comp MAC Address Table

B-MAC
B-VID
Port

BM1
2001
PNP#1

-
-
-

1
2
3
4
5
6
.CBP의ingress에서B-DA replace는설정되어있지않다고가정함
.Connection_ID table은각PIP별로유지,관리됨
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

31
Backbone Address Learning at PIP: (2) using Connection_ID
S-VID=10
S-VID=11
I-Component
B-Component
PNP#1
I-SID=1010
I-SID-1011
B-VID
2001
CIP#1
VIP#1
VIP#2
PIP#1
CBP#1
Backbone Edge Bridge (BEB)
BCB
BCB
BCB
BCB
PIP MAC = BM1
PIP MAC = BM2
BM1
BM2
BVID=2001
I-SID=1010
C-DA=A
C-SA=B

BM1
BM2
I-SID=1010
C-DA=A
C-SA=B

Connection_ID Table

CID
B-MAC
I-SID

1
BM1
1010

-
-
-

MAC Address Table

C-MAC
S-VID
Port
CID

B
10
CIP#1
N/A

A
10
VIP#1
1

A
B
SVID=10

#NAME?
1107378_L1
End station (A)
1107378_L1
End station (B)
I-Comp MAC Address Table

C-MAC
S-VID
Port
CID

A
10
CIP#1
N/A

B
10
VIP#1
7

Connection_ID Table

CID
B-MAC
I-SID

7
BM2
1010

-
-
-

B-Comp MAC Address Table

B-MAC
B-VID
Port

BM1
2001
CBP#1

BM2
2001
PNP#1

B-Comp MAC Address Table

B-MAC
B-VID
Port

BM1
2001
PNP#1

BM2
2001
CBP#1

6
5
4
3
2
1
.PIP와VIP 갂에Connection-ID를주고받아서B-DA를찾아내는방식은, Dynamic FDB entry에대해서만지원됨
.Static B-DA를지정하고자할때에는CBP의Backbone Service Instance Table 상의“Default Backbone Address”를설정하면됨
A
B

BM1
BM2
I-SID=1010
C-DA=A
C-SA=B

#NAME?
A
B

A
B
SVID=10

Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

32
Backbone Addressing 요약
No.
Backbone Addressing Method
Description

1
Flooding frames throughout the B-VLAN (using Multicast I-SID Address) and Filtering at egress provides the correct connectivity for the backbone service instance
.Mandatory만구현, Parameter는모두Default
.Default B-DA at PIP
.No B-DA replacement at CBP
.adminPointToPoint= ForceFalse
.No static multicast entry in the BCBs (Flooding throughput the B-VLAN)

2
Learning individual backbone MAC addresses at a Provider Instance Port
(1) adminPoint-to-point = True
.Service Instance가Point-to-point 구성인경우
.VIP의adminPTP= ForceTrue로설정
.PIP가incoming B-SA를배워VIP-ISID별default B-DA를Update함

3
Configuring the Customer Backbone Ports to translate the Backbone Service Instance Group Address
.BEB의CBP에B-DA 설정
.Default B-DA at PIP
.B-DA replacement at CBP

4
Configuring Static Filtering Entries in the backbone bridges, or using MMRP to create Group Registration Entries, that restricts the delivery to just the endpoints of the backbone service instance
.BCB들에Multicast entry 설정
.Configure (static) I-SID multicast address in BCBs
.동일B-VID 내에모두Flooding되지않고, 해당I-SID의Endpoint에게만전달되도록함
.Static Multicast entry 설정이번거로움

5
Learning individual backbone MAC addresses at a Provider Instance Port
(2) Connection_ID가구현된경우
.(Optional) CID가구현되면, PtPservice instance가아니더라도B-SA를Learning할수있음

Provisioning
이쉬움
Provisioning
이어려움
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

33
Service Access Protection: Protection Classifications
Protection Class
Description

Class I
Unprotected

Class II
Link protected (No node redundancy) by means of Link Aggregation

Class III
Link and node protected

Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

34
Service Access Protection: Protection Scheme of Class III SI
.In operation, a class III interface uses only the highest priority operating LAN for traffic.
.When Providing a Class III S-tagged interface,
.Multiple Customer Instance Ports, each on a different BEB, are used to create a single S-tagged interface.
.No BPDUs from the customer network or from the provider network are delivered over the interfaces links
.The the Layer2 Gateway Protocolis run on the customer network which determines which S-VLANs are active on which LANs of the class III interface …
.The customer network informs the PBBN which S-VLANs are active on which links using MVRP  on the access LANs.
.When Providing a Class III I-tagged interface,
.Multiple Customer Backbone Ports, each on a different B-BEB, are used to create the single I-tagged interface.
.No BPDUs from the customer network or from the Provider network are delivered over the interface LANs which form the I-tagged interface.
.Each LAN of the I-tagged interface executes CFM at the physical level to detect failures over the interface LANs.
.Information from CFM is used by the customerto determine which LANs of the I-tagged interface are operating and which are inactive.
Copyright ⓒ 2002-2011 NMC Consulting Group. All rights reserved.

35
End of Document
Related Contents
12/15/2007
Netmanias Technical Documents
08/05/2007
Netmanias Technical Documents

 

 

     
         
     

 

     
     

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