Common use of Diagram Clause in Contracts

Diagram. This is a generic diagram showing the standard configuration and service demarcation points. It is not intended to represent every situation or detailed physical architecture. The following points should be noted: The Bitstream 4 service and pricing applies from the UNI to the E-NNI at the POI, i.e. there is no incremental charge from the Intermediate POI to the POI. The Service Provider can request Tail Extension to extend the Bitstream 4 service to a remote POI. Some Bitstream services will have a single tier of aggregation, i.e. there is no Intermediate POI. Where there are multiple tiers of aggregation, Service Providers can pick the service up at an Intermediate POI. This intermediate POI will service a limited Coverage Area. Service Levels (availability, network performance) only apply to UNI to POI. Access node and aggregation interconnection may use redundant links to meet Service Level requirements. Appendix B – Technical Specification Technical Specification Ethernet IEEE 802.3 – 2005 802.1q supporting 4093 VLANs UNI RJ45 o 100 Mbps = 100BaseT o 1 Gbps = 1000Base-T o 10 Gbps = 10GBase-T Glass Only o 100 Mbps = 100Base-FX o 1 Gbps = 1000Base-LX MTU o 9100 Bytes UFB Handover Connection (E-NNI) Ethernet: 802.1ad VLAN (SVID, CVID); or Double tagged Q in Q. XXXX Xxxxx-xx-Xxxxx (X-XXX) XXX 0000 Bytes Unicast Frame Delivery = Unconditional as per plan Multicast Frame Delivery = Unconditional as per plan Broadcast Frame Delivery = Unconditional as per plan Layer 2 Control Protocols Processing = Limited (but may be amended by The LFC from time to time)

Diagram. This is a generic diagram showing the standard configuration and service demarcation points. It is not intended to represent every situation or detailed physical architecture. The following points should be noted:  The Bitstream 4 service and pricing applies from the UNI to the E-NNI at the POI, i.e. there is no incremental charge from the Intermediate intermediate POI to the POI.  The Service Provider can request Tail Extension to extend the Bitstream 4 service to a remote POI.  Some Bitstream services Services will have a single tier of aggregation, i.e. there is no Intermediate intermediate POI.  Where there are multiple tiers of aggregation, Service Providers can pick the service up at an Intermediate POI. This intermediate POI will service a limited Coverage Area.  Service Levels (availability, network performance) only apply to UNI to POI.  Access node and aggregation interconnection may use redundant links to meet Service Level requirements. Appendix B Service Description for Xxxxxxxxx 0 Xxxxxxxx X – Technical Specification Technical Specification Ethernet  IEEE 802.3 – 2005 2005.  802.1q supporting 4093 VLANs UNI RJ45 0000 XXXXx. XXX  XX00: o 100 Mbps = 100BaseT 100BaseT; o 1 Gbps = 1000Base-T T; and o 10 Gbps = 10GBase-T T.  Glass Only Only: o 100 Mbps = 100Base-FX FX; or o 1 Gbps = 1000Base0000Xxxx-LX MTU XX.  XXX: o 9100 Bytes Bytes. UFB Handover Connection (E-NNI) Ethernet:  802.1ad VLAN (SVID, CVID); or  Double tagged Q in Q. XXXX XxxxxQnQ. VLAN Point-xxto-Xxxxx Point (XE-XXX) XXX 0000 APL); MTU:  9100 Bytes Unicast Frame Delivery = Unconditional as per plan passed within service CIR. Multicast Frame Delivery = Unconditional as per plan passed within service CIR. Broadcast Frame Delivery = Unconditional as per plan passed within service CIR. Layer 2 Control Protocols Processing = Limited limited (but may be amended by The the LFC from time to time).

Diagram. This is a generic diagram showing the standard configuration and service demarcation points. It is not intended to represent every situation or detailed physical architecture. The following points should be noted: The Bitstream 4 service and pricing applies from the UNI to the E-NNI at the POI, i.e. there is no incremental charge from the Intermediate intermediate POI to the POI. The Service Provider can request Tail Extension to extend the Bitstream 4 service to a remote POI. Some Bitstream services Services will have a single tier of aggregation, i.e. there is no Intermediate intermediate POI. Where there are multiple tiers of aggregation, Service Providers can pick the service up at an Intermediate POI. This intermediate POI will service a limited Coverage Area. Service Levels (availability, network performance) only apply to UNI to POI. Access node and aggregation interconnection may use redundant links to meet Service Level requirements. Service Description for Bitstream 4 28November 2011 Appendix B – Technical Specification Technical Specification Ethernet IEEE 802.3 – 2005 2005. 802.1q supporting 4093 VLANs 4050 VLANs. UNI RJ45 RJ45: o 100 Mbps = 100BaseT 100BaseT; o 1 Gbps = 1000Base-T T; and o 10 Gbps = 10GBase-T T. Glass Only Only: o 100 Mbps = 100Base-FX FX; or o 1 Gbps = 1000Base-LX MTU LX. MTU: o 9100 Bytes Bytes. UFB Handover Connection (E-NNI) Ethernet: 802.1ad VLAN (SVID, CVID); or Double tagged Q in Q. XXXX XxxxxQnQ. VLAN Point-xxto-Xxxxx Point (XE-XXX) XXX 0000 APL); MTU: 9100 Bytes Unicast Frame Delivery = Unconditional as per plan passed within service CIR. Multicast Frame Delivery = Unconditional as per plan passed within service CIR. Broadcast Frame Delivery = Unconditional as per plan passed within service CIR. Layer 2 Control Protocols Processing = Limited limited (but may be amended by The the LFC from time to time).

Diagram. This is a generic diagram showing the standard configuration and service demarcation points. It is not intended to represent every situation or detailed physical architecture. The following points should be noted:  The Bitstream 4 service and pricing applies from the UNI to the E-NNI at the POI, i.e. there is no incremental charge from the Intermediate intermediate POI to the POI.  The Service Provider can request Tail Extension to extend the Bitstream 4 service to a remote POI.  Some Bitstream services Services will have a single tier of aggregation, i.e. there is no Intermediate intermediate POI.  Where there are multiple tiers of aggregation, Service Providers can pick the service up at an Intermediate POI. This intermediate POI will service a limited Coverage Area.  Service Levels (availability, network performance) only apply to UNI to POI.  Access node and aggregation interconnection may use redundant links to meet Service Level requirements. Appendix B – Technical Specification Technical Specification Ethernet Service Description for Xxxxxxxxx 0 00 Xxxxxxxx 0000 Xxxxxxxx  IEEE 802.3 – 2005 2005.  802.1q supporting 4093 VLANs UNI RJ45 0000 XXXXx. XXX  XX00: o 100 Mbps = 100BaseT 100BaseT; o 1 Gbps = 1000Base-T T; and o 10 Gbps = 10GBase-T T.  Glass Only Only: o 100 Mbps = 100Base-FX FX; or o 1 Gbps = 1000Base0000Xxxx-LX MTU XX.  XXX: o 9100 Bytes Bytes. UFB Handover Connection (E-NNI) Ethernet:  802.1ad VLAN (SVID, CVID); or  Double tagged Q in Q. XXXX XxxxxtaggedQnQ. VLAN Point-xxto-Xxxxx Point (XE-XXX) XXX 0000 APL); MTU:  9100 Bytes Unicast Frame Delivery = Unconditional as per plan passed within service CIR. Multicast Frame Delivery = Unconditional as per plan passed within service CIR. Broadcast Frame Delivery = Unconditional as per plan passed within service CIR. Layer 2 Control Protocols Processing = Limited limited (but may be amended by The the LFC from time to time). Fibre External fibre must comply with ITU-T specification G.652D. Internal building fibres may comply with ITU-T G.657A. Fibre terminations must be SC/APC type connectors (complying with the IEC 61754-4 standard) or alternatively LC/APC type connectors (complying with the IEC 61754-20 standard) as appropriate. Laser types and path characteristics expected to be designed to a minimum standard which are contained in the documents IEEE 802.3 Section 5 standard. Testing for power loss will be at either 1310 or 1550 nm. 1625 nm reserved for non disruptive testing.

Diagram. This is a generic diagram showing the standard configuration and service demarcation points. It is not intended to represent every situation or detailed physical architecture. The following points should be noted:  The Bitstream 4 service and pricing applies from the UNI to the E-NNI at the POI, i.e. there is no incremental charge from the Intermediate intermediate POI to the POI.  The Service Provider can request Tail Extension to extend the Bitstream 4 service to a remote POI.  Some Bitstream services Services will have a single tier of aggregation, i.e. there is no Intermediate intermediate POI.  Where there are multiple tiers of aggregation, Service Providers can pick the service up at an Intermediate POI. This intermediate POI will service a limited Coverage Area.  Service Levels (availability, network performance) only apply to UNI to POI.  Access node and aggregation interconnection may use redundant links to meet Service Level requirements. Service Description for Bitstream 4 28November 2011 Appendix B – Technical Specification Technical Specification Ethernet  IEEE 802.3 – 2005 2005.  802.1q supporting 4093 VLANs UNI RJ45 0000 XXXXx. XXX  XX00: o 100 Mbps = 100BaseT 100BaseT; o 1 Gbps = 1000Base-T T; and o 10 Gbps = 10GBase-T T.  Glass Only Only: o 100 Mbps = 100Base-FX FX; or o 1 Gbps = 1000Base0000Xxxx-LX MTU XX.  XXX: o 9100 Bytes Bytes. UFB Handover Connection (E-NNI) Ethernet:  802.1ad VLAN (SVID, CVID); or  Double tagged Q in Q. XXXX XxxxxQnQ. VLAN Point-xxto-Xxxxx Point (XE-XXX) XXX 0000 APL); MTU:  9100 Bytes Unicast Frame Delivery = Unconditional as per plan passed within service CIR. Multicast Frame Delivery = Unconditional as per plan passed within service CIR. Broadcast Frame Delivery = Unconditional as per plan passed within service CIR. Layer 2 Control Protocols Processing = Limited limited (but may be amended by The the LFC from time to time).

Diagram. This is a generic diagram showing the standard configuration and service demarcation points. It is not intended to represent every situation or detailed physical architecture. The following points should be noted: The Bitstream 4 service and pricing applies from the UNI to the E-NNI at the POI, i.e. there is no incremental charge from the Intermediate intermediate POI to the POI. The Service Provider can request Tail Extension to extend the Bitstream 4 service to a remote POI. Some Bitstream services Services will have a single tier of aggregation, i.e. there is no Intermediate intermediate POI. Where there are multiple tiers of aggregation, Service Providers can pick the service up at an Intermediate POI. This intermediate POI will service a limited Coverage Area. Service Levels (availability, network performance) only apply to UNI to POI. Access node and aggregation interconnection may use redundant links to meet Service Level requirements. Appendix B – Technical Specification Technical Specification Service Description for Bitstream 4 Ethernet IEEE 802.3 – 2005 2005. 802.1q supporting 4093 VLANs 4050 VLANs. UNI RJ45 RJ45: o 100 Mbps = 100BaseT 100BaseT; o 1 Gbps = 1000Base-T T; and o 10 Gbps = 10GBase-T T. Glass Only Only: o 100 Mbps = 100Base-FX FX; or o 1 Gbps = 1000Base-LX MTU LX. MTU: o 9100 Bytes Bytes. UFB Handover Connection (E-NNI) Ethernet: 802.1ad VLAN (SVID, CVID); or Double tagged Q in Q. XXXX XxxxxQnQ. VLAN Point-xxto-Xxxxx Point (XE-XXX) XXX 0000 APL); MTU: 9100 Bytes Unicast Frame Delivery = Unconditional as per plan passed within service CIR. Multicast Frame Delivery = Unconditional as per plan passed within service CIR. Broadcast Frame Delivery = Unconditional as per plan passed within service CIR. Layer 2 Control Protocols Processing = Limited limited (but may be amended by The the LFC from time to time). Fibre External fibre must comply with ITU-T specification G.652D. Internal building fibres may comply with ITU-T G.657A. Fibre terminations must be SC/APC type connectors (complying with the IEC 61754-4 standard) or alternatively LC/APC type connectors (complying with the IEC 61754-20 standard) as appropriate. Laser types and path characteristics expected to be designed to a minimum standard which are contained in the documents IEEE 802.3 Section 5 standard. Testing for power loss will be at either 1310 or 1550 nm. 1625 nm reserved for non disruptive testing.