DRNI Examples and DAS position
Maarten Vissers
2011-08-16
Version 01
1
Contents
 Version 00 slides (3 to 8)
 Figure drawn during Aug. 11 virtual meeting (9 and 10)
 Version 01 new slides (11 to 27)
 PB Gateway nodes examples
–
–
–
–
Fault free
E-NNI Link failure
I-NNI Link failure
Gateway node failure
 PBBN IB-BEB Gateway nodes examples
–
–
–
–
Fault free
E-NNI Link failure
I-NNI Link failure
Gateway node failure
 PBB-TEN IB-BEB Gateway nodes examples
–
–
–
–
Fault free
E-NNI Link failure
I-NNI Link failure
Gateway node failure
 PBBN B-BEB Gateway nodes examples (to be added in v02)
2
Version 00 slides
3
Three examples
DRNI between a PBN
and a PBBN is
established between
two PB nodes and two
IB-BEB nodes
DRNI between a PBBN
and a PBB-TEN is
established between
four IB-BEB nodes
DRNI between two
PBBNs is established
between four B-BEB
nodes
PBBN
B-BEB
PBB-TEN
B-BEB
DRNI
IB-BEB
DRNI
IB-BEB
IB-BEB
IB-BEB
DRNI
B-BEB
PBBN
B-BEB
PBBN
IB-BEB
PBN
IB-BEB
3
PB
2
PB
1
PBBN
4
The following slides present the three examples by means of their node
models with


Port and Relay functions
Clause 6, 8 and 19 shims
The objective is to determine where the Distributed Link Aggregation
Sublayer (DAS) belongs in the stack of clause 6/8/19 shims


802.1AX specifies the LAG sublayer as a client of the MAC Sublayer; the LAG sublayer is
bound by one upper MAC SAP and multiple lower MAC SAPs
In an 802.1D bridge the LAG sublayer would be located below the MAC Relay, presenting the
set of true ISS SAPs as one (virtual) ISS SAP to the Relay; the LAG sublayer is then bound by
one upper (virtual) ISS SAP and multiple lower ISS SAPs
 Discussion: The upper ISS SAP can not be used to instantiate UP/DOWN MEPs and MIPs, as this
SAP is a virtual SAP located inside the bridge’s ‘switch fabric’

In an 802.1Q bridge the LAG sublayer should in analogy be located below the MAC Relay,
presenting the set of true EISS SAPs as one (virtual) EISS SAP to the Relay; the LAG sublayer
is then bound by one upper (virtual) EISS SAP and multiple lower EISS SAPs
 Discussion: The upper EISS SAP can not be used to instantiate UP/DOWN MEPs and MIPs, as this
SAP is a virtual SAP located inside the bridge’s ‘switch fabric’


Clause 22 of 802.1Q-2011 specifies that the LAG Sublayer is located at the ISS SAP, not at the
EISS SAP; it specifies that per VID UP/DOWN MEPs and MIPs can be instantiated between
MAC Relay and LAG Sublayer and that only a Link Down MEP can be instantiated below the
LAG sublayer.
DRNI however requires that each service instance passes through an UP MEP just before
handing the service frames to the E-NNI link
5
1. PBN – DRNI – PBBN
Intra-DAS
802.n
6.7
PNP
19.2
PBN
8.5
6.9.9.5b
19.2,19.3,19.5
DAS
PNP
PNP
PNP
S-VLAN Relay
PNP
PNP
PNP
S-VLAN Relay
PNP
?
PNP
PNP
PNP
?
CNP
CBP
PIP
CBP
PIP
CBP
S-VLAN Relay
PIP
CBP
PIP
CBP
B-VLAN
Relay
PNP
PNP
PNP
CNP
PIP
CBP
PIP
CBP
PIP
CBP
B-VLAN
Relay
PNP
PNP
PBBN
PNP
PNP
IB-BEB
IB-BEB
S-VLAN Relay
CNP
CNP
CNP
DAS
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
19.2
19.2
19.2
6.7
6.7
6.7
802.n
802.n
802.n
OR
802.n
802.n
802.n
6.7
6.7
6.7
19.2
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
19.2/3/5
DAS
Intra-DAS
8.6 S-VLAN MAC Relay
PIP
CNP
PNP
CBP
CNP
PIP
19.2/3/5
DRNI
DRNI
PNP
PNP
PNP
PNP
PB
PB
PNP
8.6 S-VLAN MAC Relay
The Intra-DAS link
can be supported
by a link (solid
line) in the carrier
domain (top) or a
dedicated link
(dotted line) within
the DRNI area
(bottom)
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
8.6 B-VLAN MAC Relay
6
19.2
2. PBBN – DRNI – PBB-TEN
8.5
6.9.9.5b
19.2,19.3,19.5
8.6 B-VLAN MAC Relay
PNP
PNP
PIP
CBP
PIP
B-VLAN
Relay
CBP
CBP
PIP
PIP
S-VLAN Relay
CNP
CNP
?
CNP
CNP
CNP
?
CNP
CNP
CNP
PIP
CBP
PIP
CBP
PNP
PNP
CNP
CNP
PIP
CBP
PIP
CBP
PIP
CBP
PIP
CBP
PIP
CBP
TESI/ESP
B-Relay
PNP
PNP
PBB-TEN
PNP
PNP
19.2/3/5
19.2/3/5
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.14
6.14
6.14
6.14
6.14
6.14
6.10
6.10
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
DAS
8.6 S-VLAN MAC Relay
19.2/3/5
S-VLAN Relay
TESI/ESP
B-Relay
PNP
PIP
19.2/3/5
19.2,19.3,19.5 19.2,19.3,19.5 19.2,19.3,19.5
IB-BEB
IB-BEB
S-VLAN Relay
CBP
PIP
CBP
DRNI
CNP
PIP
PIP
CBP
S-VLAN Relay
DRNI
CNP
CBP
CNP
PIP
CBP
PNP
DAS
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
19.2
19.2
19.2
6.7
6.7
6.7
802.n
802.n
802.n
OR
802.n
802.n
802.n
6.7
6.7
6.7
19.2
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
19.2/3/5
Intra-DAS
DAS
8.6 S-VLAN MAC Relay
PIP
CBP
PNP
IB-BEB
IB-BEB
B-VLAN
Relay
PNP
PIP
PNP
CNP
PNP
PNP
CBP
PNP
CBP
PBBN
Should this be a P2P
BSI carrying N SVIDs? Or, should this
be a P2P B-VLAN
carrying N BSIs,
each with a single SVID?
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
8.6 TESI/ESP MAC Relay
7
Multiple CBPs have to be combined to create one SuperCBP function (instead of multiple independent CBP
functions) with a single set of B-VLAN MEPs connected to
the Super-CBP function at one side and multiple CBP
ports at the other side. BSI UP MEPs on each CBP port
can be used to terminate the Carrier MA. Super-CBP
function includes a BSI Relay function interconnecting BVLAN virtual ports and CBP ports
PNP
PNP
B-Relay
CBP
PNP
PNP
CBP
CBP
CBP
CBP
B-BEB
CBP
?
B-Relay
PNP
PNP
PNP
CBP
CBP
PNP
CBP
CBP
B-BEB
CBP
CBP
DRNI
CBP
PNP
B-Relay
?
6.7
6.7
6.7
19.2
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
B-Relay
PNP
PNP
PNP
CBP
PNP
802.n
Intra-DAS
Should this be a
P2P B-VLAN?
8.6 B-VLAN MAC Relay
DRNI
PNP
802.n
19.2,19.3,19.5 19.2,19.3,19.5 19.2,19.3,19.5
19.2/3/5
19.2/3/5
DAS
DAS
19.2/3/5
19.2/3/5
19.2/3/5
8.5
8.5
8.5
19.2
19.2
19.2
6.7
6.7
6.7
802.n
802.n
802.n
OR
802.n
802.n
802.n
6.7
6.7
6.7
19.2
19.2
19.2
8.5
8.5
8.5
19.2/3/5
19.2/3/5
19.2/3/5
Intra-DAS
DAS
6.11,9.5c 6.11,9.5c
6.11,9.5c
(BSI Relay) 6.11, 9.5c
19.2/3/5
PNP
19.2/3/5
19.2/3/5
8.6 B-VLAN MAC Relay
PBBN
PNP
PNP
802.n
6.11,9.5c 6.11,9.5c
6.11,9.5c
(BSI Relay) 6.11, 9.5c
B-BEB
B-BEB
PBBN
PNP
3. PBBN – DRNI – PBBN
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
19.2
19.2
19.2
6.7
6.7
6.7
802.n
802.n
802.n
8
Figure drawn during Aug. 11 virtual meeting
Figure was drawn to clarify interconnection of DAS
function with other functions
Text has been added to describe the configuration
9
Figure drawn during Aug. 11 virtual meeting
Text added in v01
The figure at the right expands the figures on
slides 6/7 and illustrates that the DAS function is
bound by EISSs, one connected to the MAC Relay
(EISS A) and three connected to CNPs or PNPs
(EISS B, C, D)
E-NNI
Link 1
E-NNI UP MEP
Option 1
E-NNI
Link 2
Intra-DAS
Link
802.n
802.n
802.n
6.7
6.7
6.7
19.2
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
19.2/3/5
(EISS B)
(EISS C)
(EISS D)
DAS
(EISS A)
Option 2
8.6 S-VLAN MAC Relay
In general, MEP/MIP functions could be located at
any EISS SAP
In practice MEP/MIP functions in equipment are
located at port cards (Option 1), not at switch
fabric cards (Option 2)
UP MEP functions should terminate Operator MA
level as close to the actual E-NNI link as possible;
i.e. Option 1 UP MEPs
(EISS X)
(EISS Y)
(EISS Z)
Switch fabric
Card
Port Card
functionality functionality
The figures in slides 6/7 illustrate the DAS
function at the boundary of the clause 8.6 S-VLAN
MAC Relay (Forwarding Process) and the clause
19.2/3/5 MEP/MIP functions
E-NNI ports and E-NNI and intra-DAS ports should be on
different port cards to prevent that a port card failure
impacts more than one interface port.
DAS function should be implemented on switch fabric
card to allow that a S-VLAN can be connected to any of
the E-NNI links or intra-DAS link.
Frames of a S-VLAN arriving over the intra-DAS link will
be forwarded to the actual E-NNI link via the switch fabric
card.
EISS A is a virtual EISS, not accessible for MEP/MIP
functions; it is located “in the middle of a switch fabric
device”. Switch fabric device has “EISS X, Y, Z, A, B and
C” as I/O ports.
10
Version 01 new slides
11
DAS, c8.6 Forwarding and G.8031 SNCP Processes
A (to be developed) distributed version of the G.8031 ETH SNC Protection processes is added, facing the carrier
domain. Such distributed version of G.8031 SNC Protection processes should be implemented on the switch fabric
card to allow that a S-VLAN can be connected to any of the I-NNI links. Each SNC Protection process presents the
protected S-VLAN signal via the (virtual) EISS N to the c8.6 Forwarding Process. Working and Protection S-VLAN
connections are connected via an I-NNI Link and the Intra-DSNCP Link.
EISS A and EISS N are virtual EISSs, not accessible for MEP/MIP functions; they are located “in the middle of a
switch fabric device”. Switch fabric device has “EISS X, Y, Z, A, B and C” as I/O ports.
E-NNI
E-NNI
Link 1
E-NNI
Link 4
802.n
802.n
802.n
802.n
802.n
6.7
6.7
6.7
6.7
6.7
6.7
19.2
19.2
19.2
19.2
19.2
19.2
8.5
8.5
8.5
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
(EISS B)
(EISS C)
PNP
19.2/3/5
(EISS D)
(EISS D)
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
DAS
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS N)
Distributed version of G.8031 SNC
Protection Processes
(EISS X)
(EISS Y)
(EISS Z)
(EISS N)
Distributed version of G.8031 SNC
Protection Processes
(EISS Z)
(EISS Y)
(EISS X)
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
19.2
19.2
19.2
6.7
6.7
6.7
802.n
802.n
802.n
I-NNI
Link a
I-NNI
Link b
PNP
19.2/3/5
PNP
19.2/3/5
Intra-DAS Link
Intra-DSNCP Link
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
19.2
19.2
19.2
6.7
6.7
6.7
802.n
802.n
802.n
I-NNI
Link d
I-NNI
Link e
Switch fabric Card
functionality
802.n
19.2/3/5
I-NNI SNCP
Down MEPs
E-NNI
Link 3
PNP
E-NNI
UP MEPs
E-NNI
Link 2
802.n physical
interface may be
replaced by e.g.
OTN interface (SVLAN over ODUk)
or MPLS-TP
interface (S-VLAN
over transport-LSP)
12
Example 1A – fault free condition
S-VLAN k
E-NNI
E-NNI
Link 1
E-NNI
Link 4
802.n
802.n
802.n
802.n
802.n
6.7
6.7
6.7
6.7
6.7
6.7
19.2
19.2
19.2
19.2
19.2
19.2
8.5
8.5
8.5
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
PNP
PNP
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS N)
Distributed version of G.8031 SNC
Protection Processes
(EISS NW)
Distributed version of G.8031 SNC
Protection Processes
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
6.7
6.7
6.7
6.7
6.7
6.7
802.n
802.n
802.n
802.n
802.n
802.n
I-NNI
Link a
I-NNI
Link b
PNP
Intra-DAS Link
Intra-DSNCP Link
S-VLAN k
I-NNI
Link d
Protection
Gateway for SVLAN k
Typically the
Standby Gateway
DAS
PNP
S-VLAN k
E-NNI
Link 3
802.n
Working
Gateway for
S-VLAN k
Typically the
Active
Gateway
E-NNI
Link 2
DSNCP process
will pass through
S-VLAN traffic in
this mode
Will become the
Active Gateway if
Working Gateway
has failed
I-NNI
Link e
13
Example 1B – E-NNI Link 1 failure  DRNI protection
Move UP MEP to E-NNI Link 3
port
X
E-NNI
Link 1
E-NNI
Link 4
802.n
802.n
802.n
802.n
802.n
802.n
6.7
6.7
6.7
6.7
6.7
6.7
19.2
19.2
19.2
19.2
19.2
19.2
8.5
8.5
8.5
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
PNP
DAS
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS N)
Distributed version of G.8031 SNC
Protection Processes
(EISS N)
Distributed version of G.8031 SNC
Protection Processes
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
6.7
6.7
6.7
6.7
6.7
6.7
802.n
802.n
802.n
802.n
802.n
802.n
I-NNI
Link a
I-NNI
Link b
PNP
S-VLAN k
E-NNI
Link 3
PNP
Fault in DRNI
does not
impact
protection in
carrier
network
E-NNI
Link 2
PNP
E-NNI
S-VLAN k
Intra-DAS Link
Intra-DSNCP Link
S-VLAN k
I-NNI
Link d
Operator MA
Up MEP has
been moved to
E-NNI Link 3
PNP
S-VLAN k
connection
over Intra-DAS
link is now
included in the
operator MA
I-NNI
Link e
14
Example 1C – I-NNI Link a failure  SNC protection
S-VLAN k
E-NNI
E-NNI
Link 1
E-NNI
Link 4
802.n
802.n
802.n
802.n
802.n
802.n
6.7
6.7
6.7
6.7
6.7
6.7
19.2
19.2
19.2
19.2
19.2
19.2
8.5
8.5
8.5
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
PNP
DAS
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS N)
Distributed version of G.8031 SNC
Protection Processes
(EISS N)
Distributed version of G.8031 SNC
Protection Processes
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
6.7
6.7
6.7
6.7
6.7
6.7
802.n
802.n
802.n
802.n
802.n
802.n
I-NNI
Link a
X
I-NNI
Link b
PNP
PNP
S-VLAN k
E-NNI
Link 3
PNP
Fault in carrier
network does
not impact
DRNI
E-NNI
Link 2
Intra-DAS Link
Intra-DSNCP Link
S-VLAN k
I-NNI
Link d
I-NNI
Link e
15
Example 1D – Gateway node failure  SNC & DRNI
protection
S-VLAN k
E-NNI
E-NNI
Link 1
E-NNI
Link 4
802.n
802.n
802.n
802.n
802.n
802.n
6.7
6.7
6.7
6.7
6.7
6.7
19.2
19.2
19.2
19.2
19.2
19.2
8.5
8.5
8.5
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
X
PNP
DAS
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS N)
Distributed version of G.8031 SNC
Protection Processes
(EISS N)
Distributed version of G.8031 SNC
Protection Processes
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
6.7
6.7
6.7
6.7
6.7
6.7
802.n
802.n
802.n
802.n
802.n
802.n
I-NNI
Link a
I-NNI
Link b
PNP
PNP
S-VLAN k
E-NNI
Link 3
PNP
Working
Gateway
fault
E-NNI
Link 2
Intra-DAS Link
Intra-DSNCP Link
S-VLAN k
I-NNI
Link d
I-NNI
Link e
S-VLAN k
Operator MA
Up MEP has
been moved to
E-NNI Link 3
PNP
Protection
Gateway has to
become Active
Gateway for SVLAN k
As Active
Gateway the SVLAN SNCP
Down MEP
functions are
activated
16
DRNI in PBBN IB-BEBs
A PBBN in a carrier domain may support DRNI as illustrated below. The two Gateway nodes are connected to a
service carrying B-VLAN S and an additional Intra-DAS B-VLAN. The S-VLANs in the carrier domain are carried in BVLAN S with an I-Tag. The I-SID of a S-VLAN may be registered at a CBP in the left Gateway, or at a CBP in the right
Gateway. The S-VLANs in the Intra-DAS B-VLAN are carried with an I-Tag.
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS X)
(EISS Y)
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
(EISS X)
19.2/3/5
PIP
CBP
8.6 B-VLAN MAC Relay
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
Intra-DAS
B-VLAN
PNP
PNP
802.n
(EISS D)
(EISS D)
8.6 B-VLAN MAC Relay
Port is
blocked
802.n
DAS
19.2/3/5
PIP
(EISS C)
PIP
6.7
E-NNI
Link 4
CNP
802.n
(EISS B)
CBP
E-NNI
Link 3
802.n
19.2/3/5
B-VLAN
Up MEPs
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
B-VLAN S
17
Example 2A – fault free condition
…
S-VLAN k
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
802.n
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
(EISS D)
(EISS D)
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS X)
(EISS Y)
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
(EISS X)
19.2/3/5
CBP
8.6 B-VLAN MAC Relay
19.2/3/5
PIP
ISID K
8.6 B-VLAN MAC Relay
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
Intra-DAS
B-VLAN
PNP
PNP
802.n
DAS
19.2/3/5
PIP
(EISS C)
PIP
6.7
E-NNI
Link 4
CNP
802.n
(EISS B)
CBP
E-NNI
Link 3
802.n
19.2/3/5
ISID K is
registered in
this CBP
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
B-VLAN S
18
Example 2B – E-NNI Link 1 failure  DRNI protection
…
S-VLAN k
X
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
802.n
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
(EISS D)
(EISS D)
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS X)
(EISS Y)
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
BSI K’
(EISS X)
19.2/3/5
CBP
8.6 B-VLAN MAC Relay
19.2/3/5
Operator MA
Up MEP has
been moved to
E-NNI Link 3
PNP
PIP
ISID K
8.6 B-VLAN MAC Relay
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
Intra-DAS
B-VLAN
PNP
PNP
802.n
DAS
19.2/3/5
PIP
(EISS C)
PIP
6.7
E-NNI
Link 4
CNP
802.n
(EISS B)
CBP
E-NNI
Link 3
802.n
19.2/3/5
ISID K is
registered in
this CBP
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
B-VLAN S
19
Example 2C – I-NNI Link a failure  BVLAN S reroute
….
S-VLAN k
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
(EISS D)
(EISS D)
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS X)
(EISS Y)
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
(EISS X)
19.2/3/5
8.6 B-VLAN MAC Relay
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
Intra-DAS
B-VLAN
PNP
19.2/3/5
X
CBP
8.6 B-VLAN MAC Relay
19.2/3/5
PIP
PIP
802.n
DAS
ISID K
PNP
802.n
DAS
19.2/3/5
CBP
(EISS C)
PIP
6.7
E-NNI
Link 4
CNP
802.n
(EISS B)
To recover
the B-VLAN
S, unblock
this I-NNI
port after
failure of
other I-NNI
port
E-NNI
Link 3
802.n
19.2/3/5
ISID K is
registered in
this CBP
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
B-VLAN S
20
Example 2D – Gateway node failure  BVLAN
….
reroute & DRNI protection
S-VLAN k
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
802.n
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
(EISS D)
(EISS D)
19.2/3/5
(EISS C)
19.2/3/5
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.10
19.2/3/5
8.6 B-VLAN MAC Relay
19.2/3/5
(EISS X)
19.2/3/5
ISID K
CBP
6.14
19.2/3/5
PIP
X
(EISS Y)
19.2/3/5
Operator MA
Up MEP has
been moved to
E-NNI Link 3
PNP
(EISS B)
(EISS X)
6.14
Protection
Gateway has
to become
Active
Gateway for SVLAN k
8.6 B-VLAN MAC Relay
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
Intra-DAS
B-VLAN
PNP
PNP
802.n
DAS
19.2/3/5
PIP
(EISS C)
PIP
6.7
E-NNI
Link 4
CNP
802.n
(EISS B)
CBP
E-NNI
Link 3
802.n
19.2/3/5
Working
Gateway
fault
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
Move
registration of
ISID K to this
port
B-VLAN S
21
DRNI in PBB-TEN IB-BEBs
A PBB-TEN in a carrier domain may support DRNI as illustrated below. The two Gateway nodes are connected to
multiple service carrying TESIs and an additional Intra-DAS TESI. The S-VLANs in the carrier domain are carried in a
Working or Protection TESI. The S-VLANs in the TESIs are carried with an I-Tag. A Distributed version of TESI
protection is to be developed.
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS X)
(EISS Y)
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
(EISS X)
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
…
…
Intra-DAS
TESI
Protection TESI
I-NNI
Link d
I-NNI
Link e
Standby
Working and
Protection
TESI MEPs
PNP
19.2/3/5
I-NNI
Link b
CBP
8.6 TESIRelay
19.2/3/5
I-NNI
Link a
PIP
PNP
802.n
(EISS D)
(EISS D)
8.6 TESI Relay
Working
TESI
802.n
DAS
19.2/3/5
PIP
(EISS C)
PIP
6.7
E-NNI
Link 4
CNP
802.n
(EISS B)
CBP
E-NNI
Link 3
802.n
19.2/3/5
Active
Working and
Protection
TESI MEPs
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
22
Example 3A – fault free condition
…
S-VLAN k
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
(EISS C)
PIP
6.7
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS X)
(EISS Y)
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
(EISS X)
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
…
…
Intra-DAS
TESI
Protection TESI
I-NNI
Link d
I-NNI
Link e
PNP
19.2/3/5
I-NNI
Link b
CBP
8.6 TESIRelay
19.2/3/5
I-NNI
Link a
PIP
8.6 TESI Relay
PNP
802.n
DAS
19.2/3/5
Working
TESI
802.n
(EISS D)
(EISS D)
E-NNI
Link 4
CNP
802.n
(EISS B)
PIP
E-NNI
Link 3
802.n
19.2/3/5
CBP
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
23
Example 3B – E-NNI Link 1 failure  DRNI protection
…
S-VLAN k
X
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
(EISS C)
PIP
6.7
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS X)
(EISS Y)
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
(EISS X)
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
…
…
Intra-DAS
TESI
Protection TESI
I-NNI
Link d
I-NNI
Link e
PNP
19.2/3/5
I-NNI
Link b
CBP
8.6 TESIRelay
19.2/3/5
I-NNI
Link a
Operator MA
Up MEP has
been moved to
E-NNI Link 3
PNP
PIP
8.6 TESI Relay
PNP
802.n
DAS
19.2/3/5
Working
TESI
802.n
(EISS D)
(EISS D)
E-NNI
Link 4
CNP
802.n
(EISS B)
PIP
E-NNI
Link 3
802.n
19.2/3/5
CBP
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
24
Example 3C – I-NNI Link a failure  TESI protection
…
S-VLAN k
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
(EISS C)
PIP
6.7
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS X)
(EISS Y)
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
(EISS X)
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
…
…
X
Intra-DAS
TESI
Protection TESI
I-NNI
Link d
I-NNI
Link e
PNP
19.2/3/5
I-NNI
Link b
CBP
8.6 TESIRelay
19.2/3/5
I-NNI
Link a
PIP
8.6 TESI Relay
PNP
802.n
DAS
19.2/3/5
Working
TESI
802.n
(EISS D)
(EISS D)
E-NNI
Link 4
CNP
802.n
(EISS B)
PIP
E-NNI
Link 3
802.n
19.2/3/5
CBP
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
25
Example 3D – Gateway node failure  TESI & DRNI
…
protection
S-VLAN k
E-NNI
6.7
6.14
19.2
19.2
6.10
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
19.2/3/5
6.14
6.7
6.7
6.10
19.2
19.2
8.5
8.5
8.5
6.9.9.5b
6.9.9.5b
6.9.9.5b
19.2/3/5
(EISS D)
(EISS D)
19.2/3/5
(EISS C)
19.2/3/5
(EISS B)
DAS
(EISS A)
(EISS A)
8.6 Forwarding Process
8.6 Forwarding Process
(EISS Z)
(EISS Z)
(EISS Y)
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
6.10
6.10
6.10
6.10
6.10
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.14
6.11,9.5c
6.11,9.5c
6.11, 9.5c
6.11, 9.5c
6.11, 9.5c
6.11,9.5c
6.11,9.5c
6.11, 9.5c
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.10
19.2/3/5
19.2/3/5
19.2/3/5
(EISS X)
19.2/3/5
8.6 TESIRelay
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
19.2/3/5
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
6.9.9.5b
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
…
…
…
…
…
…
…
…
I-NNI
Link b
Intra-DAS
TESI
Protection TESI
I-NNI
Link d
I-NNI
Link e
PNP
19.2/3/5
I-NNI
Link a
CBP
6.14
19.2/3/5
Operator MA
Up MEP has
been moved to
E-NNI Link 3
PNP
PIP
X
(EISS Y)
8.6 TESI Relay
PNP
802.n
(EISS X)
6.14
Working
TESI
802.n
DAS
19.2/3/5
PIP
(EISS C)
PIP
6.7
E-NNI
Link 4
CNP
802.n
(EISS B)
CBP
E-NNI
Link 3
802.n
19.2/3/5
Working
Gateway
fault
E-NNI
Link 2
PIP
E-NNI
UP MEPs
CNP
E-NNI
Link 1
Protection
Gateway has to
become Active
Gateway for SVLAN k
As Active
Gateway the
TESI Up MEP
functions are
activated
26
DRNI in PBBN B-BEBs
To be added in v02.
27