ethernet private line (epl)...evc maximum number of evcs 1 evc (except enni where multiple evc...

EPL - Service Descriptor

In Commercial Confidence © Sify Technologies 2020 1 | P a g e

ETHERNET SERVICES

Ethernet Private Line (EPL)



Version History

Statement of Confidentiality

This document contains proprietary and confidential information of Sify network. The information contained herein shall not be reproduced or transferred to other documents or used or disclosed to others for any purpose except as specifically authorized in writing by Sify Technologies Limited.

Ver. Remarks/Modifications Date Prepared by Checked by Approved by 1.0 Re-issue April 2020 Abdul Kamara J. Polley J. Polley

2.0 Addition of section 6 – Platforms July 2020 Abdul Kamara Abishek

Srikumar Justin Polley



Table of Contents 1. Introduction............................................................................................................................................... 4

2. Document Scope ....................................................................................................................................... 4

3. Service Overview ....................................................................................................................................... 4

3.1 EPL Connectivity Diagram ................................................................................................................................................ 4

3.2 EPL Key Features .................................................................................................................................................................. 5

3.3 Service Attributes ................................................................................................................................................................. 6

3.3.1 Y. MAC Security ................................................................................................................................................................... 7

3.4 L2CP (Layer 2 Control Protocol Tunneling) ................................................................................................................ 7

3.5 Ethernet OAM ....................................................................................................................................................................... 7

3.5.1 EFM .......................................................................................................................................................................................... 7

3.5.2 CFM.......................................................................................................................................................................................... 8

3.5.3 Y.1731 ..................................................................................................................................................................................... 8

3.6 Unlimited VLAN .................................................................................................................................................................... 8

3.7 MAC Transparency .............................................................................................................................................................. 8

3.8 High Availability ................................................................................................................................................................... 8

3.8.1 Last mile & Pseudo wire redundancy ................................................................................................................. 8

3.8.2 Last mile, POP & Pseudo wire Redundancy ............................................................................................................. 9

3.8.3 Dual Power Supply ............................................................................................................................................................. 9

3.9 Performance Analyzer (RFC 2544) ................................................................................................................................. 9

3.10 Service Activation Test (with Y.1564) ......................................................................................................................... 10

4. Service Architecture ............................................................................................................................... 11

4.1 Domestic Coverage – India ........................................................................................................................................... 12

4.2 Outside India Coverage .................................................................................................................................................. 13

4.3 Service attributes .............................................................................................................................................................. 14

4.3.1 Physical service attributes .................................................................................................................................... 14

4.3.2 EVC service attributes ............................................................................................................................................ 14

5. Service Level Agreement ....................................................................................................................... 15

6. Platform .................................................................................................................................................. 15

6.1 ADVA GE114 Pro ............................................................................................................................................................... 16

6.2 ADVA XG120 Pro ............................................................................................................................................................... 16



1. Introduction Ethernet Services are a portfolio of Wide Area Networking (WAN) services which enable businesses to efficiently connect locations together to form a seamless and secure network environment. Ethernet Services enable businesses to cost-effectively and reliably link business locations to form a secure WAN infrastructure. There are two Ethernet Service types supported by Sify.

• EPL - Ethernet Private Line (IP MPLS core) • EVPL- Ethernet Virtual Private Line (P2P Service over IPMPLS core)

EPL is Sify’s highly transparent switched Ethernet service built over a highly resilient & versatile MPLS core network. This document describes Ethernet Private Line and its advanced feature sets.

2. Document Scope The scope of the document is limited to explaining technical capability of Ethernet Private Line service in terms of a Product descriptor. Target audience would be Technology, Product, and Service Delivery Teams.

3. Service Overview Services are classified based on Feature, Technology, Bandwidth and under laying backbone. EPL is a CE2.0 Standard, which supports complete transparency and close to unrestricted MAC address. Sify offers EPL service over Its IP MPLS Network with capacities below 1G. Our IP MPLS Network is MEF and CE2.0 compliant and supports unrestricted MAC transparency, unlimited VLAN transparency, protocol transparency (STP, VTP, LACP, LLDP, CDP, OAM, CFM etc.) and Fault propagation. Services Access Backbone Technology Platforms

Used Sify Off-Net National Long Distance (NLD)

International Long Distance (ILD)

EPL Wireline Wireline MPLS IP MPLS IP MPLS IP Cisco + ADVA

3.1 EPL Connectivity Diagram EPL is a Point-to-Point Ethernet Virtual Connection (EVC) between two UNIs which provides a high degree of Transparency.



3.2 EPL Key Features EPL - Key Features

Service Coverage Singapore, Hong Kong, London, Marseille, Delhi, Mumbai, Chennai, Bangalore, Pune, Hyderabad, Kolkata

Acceptable Local Loops Sify Fibre and third-party local Loop providers

MTU UNI MTU size to be greater or equal to 1500 bytes MTU of 9000 bytes can also be supported

MAC Up to 16K(dependent on NID Deployment Option)

Transparency complete L2 protocol transparency include Ethernet OAM, CFM

Choice of Bandwidth 50 – 100 Mbps in 10 Mbps increments 100 – 1000 Mbps in 100 Mbps increments

Choice of Interface Hand-offs

Fast-E interfaces: 100BaseTx (copper, RJ45, full duplex) Gig-E interface: 1000BaseLX (fiber, SM, 1310nm, full duplex) 1000BaseTx (copper, RJ45, full duplex) 10 Gig Interface: 10GE LAN PHY: 10Gbase LR: 1310nm, SM, 2m- 10km



3.3 Service Attributes Sify EPL conforms with CE 2.0 standards. It allows service providers to carry customer traffic across network boundaries while preserving end-to-end services characteristics. Below is table of SIFY EPL service compliance with CE2.0.

Service Attributes Description SIFY EPL

Physical Medium Supports Ethernet physical medium as UNI listed in IEEE 802.3-2005 As per CE2.0

Fast-E interfaces: 100BaseTx (copper, RJ45, full duplex) Gig-E interface: 1000BaseLX (fiber, SM, 1310nm, full duplex) 1000BaseTx (copper, RJ45, full duplex) 10 Gig Interface: 10GE LAN PHY: 10Gbase LR: 1310nm, single mode, 2m-10km

Speed and Mode UNI Speed 100/1000 Auto-neg, 1 Gbps or 10 Gbps in Full Duplex mode

MAC Layer Supports un-tagged, tagged

UNI MTU Size UNI MTU size to be greater or equal to 1500 bytes Sify Supports MTU- 9000

Bundling LACP bundling Sify Supports Static LAG on Network Side,

LACP on access Side CE-VLAN ID for untagged and priority tagged Service Frames

Transparently forward the customer untagged and priority tagged Service Frames

Sify transparently Forwards all Frames

EVC

Maximum Number of EVCs

1 EVC (Except ENNI where Multiple EVC required with customer identification Tag)

EVC Map Per Port

Performance management Sify Support RFC 2544 and Y.1564, Interface and Flow performance statistics

L2CP Processing End to end L2CP through the tunnel STP/MSTP/RSTP/LLDP/CDP/LACP//OAM/CFM/Y.1731

Bandwidth profiling

Ingress bandwidth profile Per UNI

Egress bandwidth profile Per UNI

SOAM

Connectivity Check messages

Supported end to end Sify tunnels Customer OAM

Link trace messages with at least one MIP configured

Link trace messages without any MIPs configured Unicast Loopback messages with at least one MIP configured

CE-VLAN ID Preservation

Transparently forward customer VLAN without any change

VLAN preserved and transparently forwarded over the Sify network

CE-VLAN CoS Preservation

Transparently forward customer COS value without any change

802.1P customer COS priority values are preserved and Transparently Forwarded over the Sify Network

Broadcast, Unicast and Multicast Service Frame Delivery

Deliver the BUM Traffic unconditionally Unicast, Multicast and Broadcast are all unrestricted.



E-line point to point E-line service Supported

E-Access/E-NII End to end EPL over the Access extension with different Carrier

Sify Supports EPL over the access Extension with Different Carrier

3.3.1 Y. MAC Security MACsec protocol is currently not supported.

3.4 L2CP (Layer 2 Control Protocol Tunneling) Customer tagged, and untagged frames are transparently carried over Sify’s core and access network by end-to-end EOMPLS tunnel. All control packets are encapsulated and delivered as unaltered at remote end.

In the case of an E-NNI, Sify will push the customer identification tag for L2CP frames and hand over to NNI provider. Service provider removes the additional tag and forwards remaining payload as untagged control frame to remote end CPE. The following L2CP protocols are supports:

*Ethernet OAM and CFM Transparency with E-NNI or E-Access extension supports are dependent on the carrier network.

3.5 Ethernet OAM Sify offers EFM 802.3ah, 802.1ag (CFM) and Y.1731 performance monitoring standards for the Operation, Administration, and Maintenance (OAM) over the NID. Sify can also support OAM Transparency and link loos forwarding based on the OAM Failures. 3.5.1 EFM provides Discovery/Link Monitoring, Remote Fault Detection and Remote Loopback Features on the access port. Customer can also transparently forward their EFM control frames to remote end.

Protocol G MAC Address Ether Type STP/RSTP/MSTP 01-80-c2-00-00-00 802 Pause Frames 01-80-c2-00-00-01 8808 LACP/LAMP 01-80-c2-00-00-02 8809 Port authentication 01-80-c2-00-00-03 888E E-LMI 01-80-c2-00-00-07 88EE LLDP 01-80-c2-00-00-0E 88CC GARP/MRP 802.1ak standard 01-80-c2-00-00-20 (to 2F) CDP, VTP 01-00-0c-cc-cc-cc 802 Cisco Shared STP 01-00-0c-cc-cc-cd 802 STP 01-80-c2-00-00-00 802 CFM IEEE 802.1ag / Y.1731 NA 8902 802.1ad QinQ NA 88a8/8100 802.3 ah EFM/ELMI 01-80-c2-00-00-02 8809



3.5.2 CFM Diagnose connectivity faults within a maintenance domain on end-to-end service. CFM is based on continuity check, Loop back and Trace route messages. Sify uses this protocol for NID to NID fault deduction as well as to carry the CFM frames transparently to remote end. 3.5.3 Y.1731 Provides service level Ethernet performance probe responses and measures Frame Loss Ratio, Frame Delay and Frame Delay Variation. Y.1731 frames can also be forwarded transparently.

3.6 Unlimited VLAN

Sify transparently tunnels customer frames to offer unlimited VLANs. Customers can use their own 4K address spacing.

3.7 MAC Transparency MAC transparency is achieved by Sify tunneling customer frames. Therefore, customer MAC addresses are passed transparently to carrier network. Customer can use their own set of MAC address without carrier restriction. Limit will be based on the platform of the NID either 4K or 16K. For global Extension all circuits are terminated on Single Device the Scale of the MAC address would impact on this case. It can be from 64 to 500 depends on number customer terminated on the aggregator.

3.8 High Availability

3.8.1 Last mile & Pseudo wire redundancy Active-passive requirement where the redundant pseudo wire provides path level protection between the same PEs



3.8.2 Last mile, POP & Pseudo wire Redundancy Combination makes all the redundancy components as Active and parallel to the working circuit. These combinations provide link level, node level and path level redundancy. 3.8.3 Dual Power Supply Sify offers NID demarcation boxes with dual power supply for high availability. These boxes will be provided based on customer requirement. In general, it would be on single power source.

*last mile can be with a different provider, however fault identification to trigger convergence depends on provider OAM Tunnel. Hence, Sify has decided not to support this option.

3.9 Performance Analyzer (RFC 2544) Performance analyzers are used to test connectivity and verify service availability from a remote location without the need for external test equipment. Performance analyzers provide measurements of actual customer throughput, Errors and Frame losses.

*Report are only available between two NIDs. in the case of Global Extension E-NNI, end-to-end reports are not generated.



3.10 Service Activation Test (with Y.1564) Y.1564 is an Ethernet service activation standard test methodology that allows for complete validation of Ethernet service-level agreements (SLAs) in a single test. It can be performed over medium or long term to validate the quality of the service over extended time period. Sify measures:

o In rate (IR) o Frame Delay (FD or RT) o Frame Delay Variation (FDV or jitter) o Frame Loss Ratio (FLR or drops)

Our standard is to perform throughput testing over a 30 minutes window. Traffic is sent continuously, where traffic profile is classified as green and yellow with performance metrics. Policing tests are carried out on additional 25% of the traffic to measure forwarding and drop rates. Performance limits are only used for service acceptance when the test traffics is less than CIR.

*Report are only available between two NIDs. in the case of Global Extension E-NNI, end-to-end reports are not generated.



4. Service Architecture Sify deploys Carrier-Ethernet compliant/compatible NID devices for EPL service at customer premises. All NID devices are managed by our centralized EMS server. EoMPLS is used to transport the Ethernet frames. Tunnels are to be configured between NID devices over the end-to-end network. Tunnel then pushes one label which is statically assigned. MPLS encapsulation is performed in the egress direction of a flow point.

Frame Structure

Customers NID device will be managed similarly to Sify’s NID devices. Separate /28 prefixes would be reserved for NID Management from the Infra /23 IP, VLAN 600 segment allocated on each core node. If /28 prefixes are exhausted, another /28 Aggregation Devices IP will be configured from the core node for Management segment with VLAN2. EMS connects to devices through In-band management connectivity. EMS south bound interface communicates to the devices for collecting FMS-PMS reports and device Configurations. North bound interface interacts with NMS and Service portal. Sify’s Provisioning team will configure the devices through web manger. EMS will work based on the Server- Entire inventory, FMS, PMS will be managed by Sify’s Service Operations team.

Port and EVC alarm/Event/threshold alert are categorized with Severity, Sify’s Service Operations team are trained to work proactively based on severity of an incident. Port and EVC Performances are captured in 15 min interval by probing.



4.1 Domestic Coverage – India

Customers who subscribe for an EPL service will be provide with a NID device backhauled on an Ethernet line from the Customer premise to the Base station. NID devices are provisioned in the customer premises, interconnect between the CPE and NID. NID requires a trunk port configuration.

• An Ethernet last mile is extended from the NID in Customer premise to the nearest Sify POP.

• NID EoMPLS tag (e1) will be allocated by Sify act as C-tag at base station; base station adds S-tag.

• Sify PE then maps the incoming traffic on to the pseudo wire created over the MPLS cloud with egress on the destination PE.

• EVC will bind with the EoMPLS tunnel created over the network facing interfaces. NID Devices

encapsulate customer frames with EoMPLS frames and the outer Ethernet header which contain destination NID address. Customer frames are carried transparently irrespective of carrier and Access provider network

Customer NID are managed by Sify demarcation devices. A separate /28 prefix will be reserved for NID Management from the Infra /23 IP VLAN 600 segment allocated on each device



4.2 Outside India Coverage

• Aggregation NID device should be added in International Site. Sify can provide either individual hand-off from aggregation point to external Service Provide (UNI). Or Multiple customers with specific tag on single hand-off (ENNI).

• Service Provider access on international site should be a Transparent EPL circuit.

• CPE connects to Service Provider access on international site at customer premises via trunk port.

• A tagged frame received by Sify aggregation NID on domestic side at ingress get added additional C-tag for customer Identification on Remote end and encapsulated with MPLS.

• Sify NID device adds outer EoMPLS tag at egress interface; this will be the first level tag or C-tag assigned by Sify.

• Sify base station add the S –tag specific to the NNI provider based on core node and through S-tag service will get extend to CPE in a similar way to the other Services.

• CPE MPLS pseudo wires are built mapping the ingress PE to egress NNI ASBR where the ADVA Aggregation node connected directly on router on one side and interconnect with Service Provider on other side.

• EMS reachability to Aggregation NID will provided through SP switch VLAN Range through dedicated monitoring switch. Gate way will be on ASBR.



4.3 Service attributes

4.3.1 Physical service attributes

Direction Physical Interfaces Full

Duplex Auto

Negotiate Link

Aggregation Connector

Types MTU UNI 1000Base-T Supported Supported Supported RJ45 9000 UNI 1000Base-LX (SM) Supported Supported Supported LC 9000

UNI

10GE LAN PHY: 10Gbase LR: 1310nm, single

mode, 2m-10km Supported Supported Supported LC 9000

4.3.2 EVC service attributes EPL services is a port based EVC, there is no priority mapping, however Sify can enable the acceptance frame policy either untagged, tagged or all. Sify can support Untagged, 8100 and 88a8 ether types. L2CP transparency support available for CDP, LLDP, LACP, PAGP, VTP, STP, OAM, CFM BPDU etc.

Service Attributes Support Accept both tagged and untagged Available Push C-tag on A2N and POP N2A Available Push S-tag on A2N and POP N2A Available Rewrite Customer tag Not Available Rewrite C tag and S-tag pushed Available EoMPLS raw mode Available EoMPLS Tagged Available Map EVC based on VLAN Not Available Create Multiple EVC on port Not Available Multi COS support Not Available Point-to-Multipoint support Available VLAN transparency Available L2CP transparency Available MAC transparency Available



5. Service Level Agreement

EPL - SLA

Availability

• Protected: 99.5 % monthly • Unprotected: no End to End SLA; o for In India components: 99.5% monthly, o for international extensions: no SLA guarantees, historic uptime of underlying cables will be provided as reference • High Availability: 99.9 % monthly

Mean time to Respond 15 mins

Mean time to Resolve 4 Hours

Frame Loss 0.5% Jitter Metro <5ms; National <10ms

Proactive Monitoring EPL is a manged Ethernet Services with proactive monitoring enabled for fault management

6. Platform

NID devices are required at customer locations to encapsulate and carry customer Frames transparently over Sify’s MPLS network. The proposed NID Models are GE114pro and XG120pro from ADVA. Both devices are MEF CE 2.0 certified.

Variant Ports EVC MAC Entries LAG GE114Pro 4 + 2 64 4K 3 XG120 pro (H) 22x1G + 4x10G 512 16K 4



6.1 ADVA GE114 Pro The ADVA GE114 Pro is used for low bandwidth Customer NID to support Bandwidth Requirement less than 900Mbps.

Dimension 220mm x 44mm x 218mm / 8,7” x 1.75” x 8 Operating temperature 40°C to +65°C / -40°F to 149°F Space 1RU Power 23W Power Feed AC (110 / 240VAC) (or) DC (-48 to -72VDC) available Access Ports 4x10/100/1000BaseT or 100/1000BaseX (SFP) Network Ports 2X10/100/1000BaseT or 100/1000BaseX (SFP) ports VLAN 4096 VLANs (IEEE 802.1Q C-tag) and stacked VLANs (Q-in-Q S-tag) EVC 64 MTU 9000 Maximum Mac address 4K Console serial connector (RJ45) Local MGT RJ45

Management protocols Telnet, SSH (v1/v2), HTTP/HTTPS, SNMP (v1/v2c/v3 NETCONF/YANG,

OpenFlow

6.2 ADVA XG120 Pro ADVA XG120 Pro has a higher bandwidth offering. It’s ideal for network interface demarcation at either customer location for requirements of 1G and above or as an aggregation device for Global Extension.

Dimension 443mm x 43.6mm x 205.5mm Operating temperature 40°C to +65°C Space 1RU Power 107W Power Feed Modular Dual AC (110 / 240VAC) (or) DC (-48 to -72VDC) available Ports 4x 1/10GbE, 22x 1GbE VLAN 4096 VLANs (IEEE 802.1Q C-tag) and stacked VLANs (Q-in-Q S-tag) EVC 512 MTU 9000 Maximum Mac address 16K Console serial connector (RJ45) Local MGT RJ45

Management protocols Telnet, SSH (v1/v2), HTTP/HTTPS, SNMP (v1/v2c/v3 NETCONF/YANG,

OpenFlow

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