Standards and Protocol Support
Router Configuration Guide 775
RFC 6575, Address Resolution Protocol (ARP) Mediation for IP Interworking of Layer 2 
VPNs
RFC 6718, Pseudowire Redundancy
RFC 6829, Label Switched Path (LSP) Ping for Pseudowire Forwarding Equivalence 
Classes (FECs) Advertised over IPv6
RFC 6870, Pseudowire Preferential Forwarding Status bit
RFC 7023, MPLS and Ethernet Operations, Administration, and Maintenance (OAM) 
Interworking
RFC 7267, Dynamic Placement of Multi-Segment Pseudowires
Quality of Service
RFC 2430, A Provider Architecture for Differentiated Services and Traffic Engineering 
(PASTE)
RFC 2474, Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 
Headers
RFC 2598, An Expedited Forwarding PHB
RFC 3140, Per Hop Behavior Identification Codes
RFC 3260, New Terminology and Clarifications for Diffserv
RIP
RFC 1058, Routing Information Protocol
RFC 2080, RIPng for IPv6
RFC 2082, RIP-2 MD5 Authentication
RFC 2453, RIP Version 2
SONET/SDH
ITU-G.841, Types and Characteristics of SDH Networks Protection Architecture, issued in 
October 1998 and as augmented by Corrigendum 1, issued in July 2002
Timing
GR-1244-CORE, Clocks for the Synchronized Network: Common Generic Criteria, Issue 3, 
May 2005
GR-253-CORE, SONET Transport Systems: Common Generic Criteria. Issue 3, September 
2000
IEEE 1588-2008, IEEE Standard for a Precision Clock Synchronization Protocol for 
Networked Measurement and Control Systems (Not Supported on 7950 XRS)
ITU-T G.781, Synchronization layer functions, issued 09/2008