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Traverse Installation and Commissioning Guide, Section 2: Network Interface Specifications
NGE and EoPDH Card Protection Description
Page 2-44
Turin Networks
Release TR3.2.1
NGE and
EoPDH Card
Protection
Description
The Traverse system supports electrical interface cabling for protected and unprotected
NGE, NGE Plus, and EoPDH cards.
Note:
For specifications about 1:1 optical equipment protection, see
Chapter 1—“Fiber Optic Interface Cabling Specifications,”
Electrical protection is available for like cards and on both electrical Gigabit (GbE TX)
and Fast Ethernet (10/100BaseTX) port interfaces.
•
1:1 electrical equipment protection for the NGE, NGE Plus, and EoPDH cards
using the 2-slot Ethernet Protection ECM
•
Unprotected electrical equipment scheme for the NGE, NGE Plus, and EoPDH
cards using the 2-slot Ethernet Protection ECM
•
Carrier Ethernet Protection (CEP) is available for the NGE Plus and EoPDH cards
using the 2-slot Ethernet Protection ECM. CEP is a unique type of protection
switching. A CEP Pair (CEPP) is a logical pairing of two NGE Plus or EoPDH
cards operating as one Ethernet switch to aggregate the traffic from twice the
number of physical ports (40 physical Ethernet ports) as that of a single card.
While a CEPP can use all of the physical Ethernet ports of two cards, it uses the 64
EOS ports of the working card only for transport.
NGE Plus or EoPDH cards in a CEPP protection group cannot simultaneously be
in a 1:1 equipment protection group; these protection groups are mutually
exclusive. NGE Plus or EoPDH cards not in a CEPP function exactly as an NGE
card.
Turin recommends adjacent card configuration for the CEPP, although the cards
can be non-adjacent. To create CEPP protection groups, see the Traverse
Provisioning Guide, Section 3—
Chapter 1—“Overview of Protection Groups,” page 3-2.
NGE and
EoPDH Card
Types
Turin Networks offers these single-slot GbE/FE interface combination cards:
NGE
•
2-port GbE TX plus 2-port GbE LX or SX plus 16-port 10/100BaseTX
•
2-port GbE SX plus 2-port GbE CWDM (40 km) plus 16-port
10/100BaseT
•
4-port GbE LX or SX plus 16-port 10/100BaseTX
•
4-port GbE CWDM (40 km) plus 16-port 10/100BaseTX
NGE Plus
•
2-port GbE TX plus 2-port GbE LX or SX plus 16-port 10/100TX with
Carrier Ethernet Protection (CEP)
•
4-port GbE LX or SX plus 16-port 10/100BaseTX with CEP
EoPDH
•
2-port GbE TX plus 2-port GbE LX or SX plus 16-port 10/100TX with
Carrier Ethernet Protection (CEP) and EoPDH
•
4-port GbE LX or SX plus 16-port 10/100BaseTX with CEP and EoPDH