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Cyan Z-Series Engineering and Planning Guide
Release 5.0
700-0023-05-00 Rev. 1
© 2013 Cyan, Inc. – All Rights Reserved.
P a g e
69
2.4 PME-412 Packet Multiplexer Module
The Cyan Z-Series PME-412 module is an Ethernet Layer 2 switch with integrated OTN functionality. It is
used in the Z-Series multi-layer transport platforms. The transport module supports connection-oriented
Ethernet transport with Provider Backbone Bridging with Traffic Engineering (PBB-TE) functionality.
Each PME-412 module provides 80 Gbps of Ethernet switching capacity and supports up to four 10G XFP
interfaces, of which two have optional OTN functionality, plus twelve SFP interfaces for Gigabit Ethernet
(GE) connectivity. It is connected to another PME-412 line card across the backplane via a 20G interface to
form a protection pair of line cards supporting Link Aggregation Groups (LAG) and sub-50 ms restoration.
The PME-412 module provides an in-band management channel of up to 100 Mbps in bandwidth.
A single module supports a 10G ring configuration with two 10GE and twelve GE tributaries. Two
PME-412 modules provide a protected ring configuration for 2x10G rings with 10G and 1GE tributaries.
The physical interfaces support four XFPs and twelve SFPs. The SFP ports support both optical SFP and
copper SFP modules. In optical SFP mode, it supports 1000Base-F and 100-FX mode. In copper SFP mode,
it supports 10/100/1000Base-T. You can disable auto-negotiation and provision the port speed to 10, 100, or
1000 Mbps. Line sensing of Media Dependent Interface (MDI) and Media Dependent Interface with
Crossover (MDIX) in copper SFP port connections is automatic.
Ring Closure Modules (RCMs) or the Release 4.0 (or higher) XC-2800 switch fabric modules are required
and must be installed in the Z77 horizontal Electrical Fabric Module (EFM) slots to support the following
PME-412 applications:
•
Link aggregation using multiple ports between a pair of PME-412 modules
•
A TESI Express connection using a pair of PME-412 modules
•
An unprotected Ethernet drop over a protected TESI using a pair of PME-412 modules
Note: For PME-412 applications, the Z77 shelf is typically configured with four RCMs or the Release
4.0 (or higher) XC-2800 switch fabric. All four RCMs or XC-2800 switch fabric modules must be
installed in the Z77 horizontal EFM slots. RCM cards and the XC-2800 switch fabric modules are not
required for the Z22 or the Z33 shelf.
For additional information on the RCMs, see
Ring Closure Modules
starting on page 135.
For additional information on the XC-2800, see
XC-2800 Switch Fabric
starting on page 135.
Figure 34: Z-Series PME-412 Module
The graphic below shows the PME-412 trunk and client interfaces functional block diagram.
Up to 2 10GbE Client
Interfaces (XFPs)
Up to 12 1GbE Client
Interfaces (SFPs)
80G
Ethernet
Switch
Up to 2 10G Trunk Interfaces
(DWDM XFPs)
Up to 2 10GbE Interfaces
to Backplane for Protection
and
Inter-module Switching
Any Combination of:
Up to 2 OTU2
Up to 2 10GbE
Up to 2 OTU2e
Figure 35: PME-412 Functional Block Diagram