Transcript Verizon Business Ethernet Services

SES E-VPL Member Deployment for
NJEDge.Net
Verizon Business
Ethernet Solutions
Presented By Joseph O’Leary Sales Engineer
Higher Education segment for Verizon Business
Ethernet Services - Summary
Verizon Switched Ethernet Service Types
Verizon Ethernet LAN (E-LAN) Service
– MP2MP EVC, designed for bridge or router
CEs
E-UNI
– Connectionless, any-to-any connectivity
– Transparent (VLAN tag preservation, L2CP
tunneling)
CE
(Switch/Router)
– ‘All-to-One Bundled’ UNIs
– Service performance objectives
Verizon Ethernet Virtual Private Line (EVPL) Service
– P2P EVC, designed for router CEs
CE
– Non-transparent service
– ‘Service Multiplexed’ UNI – one or more EVCs (Router)
per UNI
– Service performance guarantees
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EVPL Metro
Switched Ethernet Service
CPE
Customer
Site B
Data Services Network
Operations( DSNOC)
NID
LAN
Redundant
Management Links
Ethernet Switch
Customer Site A
CPE
HQ LAN
NID
Service
Connection
Point
IOF
10 M
Dedicated
Fiber Pair
GigE (1000 M)
Verizon Metro
Network
Customer’s
Virtual Network
Key Characteristics
Customer
Site C
CPE
LAN
100 M
NID
Customer Equipment
(*MNS Opportunity)
•
•
•
•
•
•
QoS options available
Shared Ethernet switches
Backbone: Multiple GigE links
Dedicated fiber access
Network Interface Device (NID)
Customer virtual networks (VLAN)
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EVPL Metro
Switched Ethernet Service
Customer network
• Customer has three EVPL Premier UNIs and two EVCs, as shown below
• EVC-1: single CoS <EVPL-B> = <70 Mbps>
• EVC-2: multi-CoS <EVPL-RT, EVPL-PD> = <20Mbps, 50Mbps>
Switch port configured as
‘Premier Access Line, untagged’
Switch port configured as
‘Premier Access Line, tagged’
CE
E-UNI
1G
SES Network
NID
6509
6509
VLAN-ID=123
A1
E-UNI
100M
EVC-1
A3
VLAN-ID=456
EVC-2
6509
All customer
traffic is ‘tagged’
E-UNI
100M
All customer traffic is
‘untagged’
A2
Note: For EVC-2, switch looks at {VLAN_ID + CoS (p-bit)} of each incoming
service frame - frames must be ‘tagged’
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Marking & CoS with SES-EVPL
IP Precedence and DiffServ Code Points
ToS
Byte
Version
Length
Len
ID
Offset
TTL
Proto
FCS
IP SA
IP DA
Data
IPv4 Packet
7
6
5
IP Precedence
4
3
2
1
0
Standard IPv4
Unused
DiffServ Code Point (DSCP)
IP ECN
DiffServ Extensions
• IPv4: Three most significant bits of ToS byte are called IP
Precedence (IPP) - other bits unused
• DiffServ: Six most significant bits of ToS byte are called DiffServ
Code Point (DSCP) - remaining two bits used for flow control
• DSCP is backward-compatible with IP Precedence
–DiffServ Class Selector (DSCS) also uses 3 most significant
bits
Source: Cisco training material
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EVPL Services
• Domain
– All UNIs in a given domain must be ‘Service Multiplexed’
• Service Multiplexed UNI
– Offered only for 100M and 1000M UNIs (not 10M)
– Two types: ‘Untagged’ OR ‘Tagged’ (can’t be both on same UNI)
– CAC rules apply to UNI...more on this later...
• EVPL EVCs
– Customer gets ability to order an EVC with up to three CoS
» Separate speeds for each CoS
– For EVC order requiring 1 CoS  ‘VLAN ID’ is used to identify the CoS
– For EVC order with 2 or 3 CoS  2 options
» ‘EVC+CoS’ (VLAN ID + p-bit value)
» ‘EVC+DSCP’ could be used to identify the CoS on the EVC (only for EVCs
connecting two untagged UNIs)
• L2CPs: All L2CPs are discarded at the UNI
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Local Enterprise,
EVPL-EVC, Multiple CoS
Customer network
• Customer has three EVPL Premier UNIs and two EVCs, as shown below
• EVC-1: single CoS <EVPL-B> = <70 Mbps>
• EVC-2: multi-CoS <EVPL-RT, EVPL-PD> = <20Mbps, 50Mbps>
Service Multiplexed, tagged
CE
E-UNI
1G
Service Multiplexed, untagged
SES Network
NID
6509
6509
VLAN-ID=123
A1
E-UNI
100M
EVC-1
A3
VLAN-ID=456
EVC-2
6509
All customer
traffic is ‘tagged’
E-UNI
100M
All customer traffic is
‘untagged’
A2
Note: For EVC-2, switch looks at {VLAN_ID + CoS (p-bit)} of each incoming
service frame - frames must be ‘tagged’
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EVPL Considerations
• EVPL is designed for customers using routers to access the
service...Bridge CEs may not work correctly...
• All traffic is policed on these UNIs  CE can’t burst to line rate
• CE must police/shape traffic to coordinate with the Bandwidth
Profile of the service
– Traffic exceeding the BWP is dropped by the policer
– More on this later...
• Connection Admission Control (CAC) rules limit the number of
EVCs and the aggregate bandwidth per CoS on a given UNI
– More on this later...
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SES EVPL CoS ID, Tagged UNI
Service multiplexed UNI, Premier Access Line, Tagged
Two CoS ID options per EVC
• EVC: a given EVC (VLAN ID) –
single CoS
• EVC + CoS: a given CoS (p-bit
value) on a given EVC – multiple
CoS
• Note: CoS ID options per EVC are
independent, i.e., both can coexist
on same UNI – see right
EVC1
UNI
EVC2
EVPL-RT or EVPL-PD or EVPL-B
CE-VLAN CoS 5,6
EVPL-RT
CE-VLAN CoS 2
EVPL-PD
CE-VLAN CoS 0
EVPL-B
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CoS Speeds Summary
Allowable CoS Speeds per EVC, by Service Type
Class of Service (CoS)
EVPL Services
Premier Access Line
FE (100M)
GE (1000M)
Real-time (RT)
1-50 Mbps
1-100 Mbps
Priority Data (PD)
1-50 Mbps
1-500 Mbps
Basic (B)
1-100 Mbps
1-1000 Mbps
EVPL CoS Speeds
• Low speed:
• Medium speed:
• High speed:
1 to 9 Mbps, in 1M steps
10 to 90 Mbps, in 10M steps
100-1000 Mbps, in 100M steps
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UNI Connection Admission Control (CAC)
Rules
•
•
UNI CAC rules are built into Provisioning System
Service Multiplexed UNI - see table below
CAC Rules for Service Multiplexed UNI
UNI speed
Max #
EVCs
RT (50%)
PD (85%)
RT+PD (85%)
Basic (500%)
100M
10
50 Mbps
85 Mbps
85 Mbps
500 Mbps
1G
75
500 Mbps
850 Mbps
850 Mbps
5000 Mbps
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EVPL CoS ID Values
Customer CoS (p-bit) Value
EVPL-EVC Multi-Service Scenarios
EVPL-RT
EVPL-PD
EVPL-B
{RT + PD + B}
5,6
2
0,1,3,4,7
{RT + PD}
5,6
0,1,2,3,4,7
N/A
{RT + B}
5,6
N/A
0,1,2,3,4,7
{PD + B}
N/A
2
0,1,3,4,5,6,7
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TYPICAL(SEGP): TODAY
PVC #1 /IP/VPN/
“EXTRANET”
Internet 1 (I1)
X
Member-to-Member Data
X
Member-to-Member
Video
X
Internet 2 (I2)
PVC #2
X
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TYPICAL(SEGP): TOMORROW
EVC #1/
Best Effort
CoS
Internet 1 (I1)
X
Member-to-Member Data
X
Member-to-Member
Prioritized Video
EVC #1/
Priority Data CoS
X
Internet 2 (I2)
X
Member-to-Member NonPrioritized Video
X
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SAMPLE EVC Sizing
• EXAMPLE 1:
– Today: IP/VPN = 4 Mbps; Internet = 6 Mbps
– Tomorrow: EVC/BE= 10 Mbps; EVC/PD = 2 Mbps
» Internet Contract: 6 Mbps
• EXAMPLE 2:
– Today: IP/VPN = 10 Mbps; Internet = 10 Mbps
– Tomorrow: EVC/BE = 20 Mbps; EVC/PD = 6 Mbps
» Internet Contract: 12 Mbps
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