
Configuring I/O Modules
Extreme Networks Consolidated Hardware Guide 253
Figure 129: Showing the components and LEDs of the PoS module
Feature Summary
The PoS modules provide the following key networking functions:
• Support for both Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH)
modes of operation
• Support for the Point-to-Point Protocol (PPP) suite, including:
— Link Control Protocol (LCP)
— Link Maintenance option for LCP
— Link Quality Report (LQR) Protocol
— Password Authentication Protocol (PAP)
— Challenge Handshake Authentication Protocol (CHAP)
— IP Control Protocol (IPCP)
— Bridging Control Protocol (BCP)
— MultiProtocol Label Switching Control Protocol (MPLSCP)
— OSI Network Layer Control Protocol (OSINLCP)
— Extreme Discovery Protocol Control Protocol (EDPCP)
• Efficient support for IP routing over SONET via IPCP
• Support for Transparent LAN Services (TLS) over SONET via BCP
• Support for MultiProtocol Label Switching over SONET via MPLSCP
PoS 002
Ejector/injector
handle
Network interface ports
Two on OC-12 PoS module
Four on OC-3 PoS module
Port status LED
(one per port)
Service ports
Module status LED
General Purpose Processor (GPP)
Module diagnostics LED
Captive
retaining screw
Network processors
and heat sinks
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