|
|
|
Y (R 8.5 and above) |
• IEEE 802.3z (Gigabit Ethernet) and IEEE 802.3x (Fast Ethernet) Flow Control |
N |
• IEEE 802.3ad Link Aggregation Control Protocol |
Y |
• 100BASE-FX full-duplex data transmission with Auto-MDIX (ML100X-8) |
N |
|
Y (R 8.5 and above) |
• High-level data link control (HDLC) |
N |
• (GFP-F) framing mechanism for POS |
Y |
• POS virtual ports |
Y (R 9.0 and above) |
• LEX or Point-to-Point |
Y |
• Cisco HDLC |
N |
• Protocol/Bridging Control Protocol (PPP/BCP) encapsulation for POS |
N |
• VCAT with SW-LCAS |
Y1 |
|
Y (R 8.5 and above) |
• Transparent bridging |
N |
• MAC address learning, aging, and switching by hardware |
N |
• Protocol tunneling |
N |
• Multiple Spanning Tree (MST) protocol tunneling |
N |
• Integrated routing and bridging (IRB) |
N |
• IEEE 802.1Q-in-Q VLAN tunneling |
Y |
• IEEE 802.1D Spanning Tree Protocol (STP) and IEEE 802.1W Rapid Spanning Tree Protocol (RSTP) |
N |
• IEEE 802.1D STP instance per bridge group |
N |
• Ethernet over Multiprotocol Label Switching (EoMPLS) |
N |
• EoMPLS traffic engineering (EoMPLS-TE) with RSVP |
N |
• VLAN-transparent and VLAN-specific services (Ethernet Relay Multipoint Service [ERMS]) |
N |
|
Y (R 8.5 and above) |
• Bridging as specified in the IEEE 802.17b spatially aware sublayer amendment |
N |
• Shortest path forwarding through topology discovery |
Y |
• Addressing including unicast, multicast, and simple broadcast data transfers. |
Y |
• Bidirectional multicast frames flood around the ring using both east and west ringlets. |
N |
• The time to live (TTL) of the multicast frames is set to the equidistant span in a closed ring and the failed span in an open ring. |
N |
RPR-IEEE Service Qualities
|
Y (R 8.5 and above) |
• Per-service-quality flow-control protocols regulate traffic introduced by clients. |
Y |
• Class A allocated or guaranteed bandwidth has low circumference-independent jitter. |
Y |
• Class B allocated or guaranteed bandwidth has bounded circumference-dependent jitter. This class allows for transmissions of excess information rate (EIR) bandwidths (with class C properties). |
Y |
• Class C provides best-effort services. |
Y |
RPR-IEEE Design Strategies Increase Effective Bandwidths Beyond Those of a Broadcast Ring
|
Y (R 8.5 and above) |
• Clockwise and counterclockwise transmissions can be concurrent. |
Y |
• Bandwidths can be reallocated on nonoverlapping segments. |
Y |
• Bandwidth reclamation. Unused bandwidths can be reclaimed by opportunistic services. |
Y |
• Spatial bandwidth reuse. Opportunistic bandwidths are reused on nonoverlapping segments. |
Y |
• Temporal bandwidth reuse. Unused opportunistic bandwidth can be consumed by others. |
Y |
RPR-IEEE Fairness Features Ensure Proper Partitioning of Opportunistic Traffic
|
Y (R 8.5 and above) |
• Weighted fairness allows a weighted fair access to available ring capacity. |
Y |
• Aggressive fairness is supported. |
Y |
• Single Choke Fairness Supports generation, termination, and processing of Single Choke Fairness frames on both spans. |
Y |
• RPR-IEEE plug-and-play automatic topology discovery and advertisement of station capabilities allow systems to become operational without manual intervention. |
Y |
RPR-IEEE Multiple Robust Frame Transmissions
|
Y (R 8.5 and above) |
• Service restoration time is less than 60 milliseconds after a station or link failure. |
Y |
• Queue and shaper specifications avoid frame loss in normal operation. |
Y |
• Fully distributed control architecture eliminates single points of failure. |
Y |
• Operations, administration, and maintenance support service provider environments. |
Y |
• EoMPLS on RPR-IEE |
N |
• IP forwarding on RPR-IEEE |
N |
• Wrapping, the optional IEEE 802.17b protection scheme |
N |
• Steering, the protection scheme |
Y |
• Layer 3 control path routing |
N |
|
Y (R 8.5 and above) |
• Ethernet frame check sequence (FCS) preservation for customers. |
N |
• Cyclic redundancy check (CRC) error alarm generation |
N |
• FCS detection and threshold configuration |
N |
• Shortest path determination |
N |
• Keep alives |
N |
|
Y (R 8.5 and above) |
• Bundling of ports |
Y |
• Load based on MAC addresses |
Y |
• Load Sharing based on incoming VLAN |
Y |
• Load sharing based on Port |
N |
• IRB |
N |
• IEEE 802.1Q trunking |
Y |
|
Y (R 8.5 and above) |
• Bundling the two POS ports |
N |
• LEX encapsulation only |
N |
• IRB |
N |
• IEEE 802.1Q trunking |
N |
Layer 3 Routing, Switching, and Forwarding
|
Y (R 8.5 and above) |
• Default routes |
N |
• IP unicast and multicast forwarding |
N |
• Simple IP access control lists (ACLs) (both Layer 2 and Layer 3 forwarding path) |
N |
• Extended IP ACLs in software (control-plane only) |
N |
• IP and IP multicast routing and switching between Ethernet ports |
N |
• Reverse Path Forwarding (RPF) multicast (not RPF unicast) |
N |
• Load balancing among equal cost paths based on source and destination IP addresses |
N |
• IRB routing mode support |
N |
• IP host functionality |
Y |
|
Y (R 8.5 and above) |
• Virtual Private Network (VPN) Routing and Forwarding Lite (VRF Lite) |
N |
• Intermediate System-to-Intermediate System (IS-IS) Protocol |
N |
• Routing Information Protocol (RIP and RIP II) |
N |
• Enhanced Interior Gateway Routing Protocol (EIGRP) |
N |
• Open Shortest Path First (OSPF) Protocol |
N |
• Protocol Independent Multicast (PIM)—Sparse, sparse-dense, and dense modes |
N |
• Secondary addressing |
N |
• Static routes |
N |
• Local proxy ARP |
N |
• Border Gateway Protocol (BGP) |
N |
• Classless interdomain routing (CIDR) |
N |
|
Y (R 8.5 and above) |
• Multicast priority queuing classes |
N |
• Service level agreements (SLAs) with 1-Mbps granularity |
Y |
• Input policing |
Y |
• Guaranteed bandwidth (weighted round-robin [WDRR] plus strict priority scheduling) |
Y |
• Low latency queuing support for unicast Voice-over-IP (VoIP) |
Y |
• Class of service (CoS) based on Layer 2 priority, Layer 3 Type of Service/DiffServ Code Point (TOS/DSCP) |
Y |
• CoS-based packet statistics |
Y |
Metro Ethernet Feature Set: Ethernet Virtual Circuits
|
Y (R 8.5 and above) |
• Point-to-Point topology (UNI to UNI) |
Y |
• Attribute Discovery Frames (ATD) for VLAN mapping |
Y |
|
Y (R 8.5 and above) |
• Cisco IOS login enhancements |
Y |
• Secure Shell connection (SSH Version 2) |
N |
• Disabled console port |
Y |
• Authentication, Authorization, and Accounting/Remote Authentication Dial-In User Service (AAA/RADIUS) stand alone mode |
Y |
• AAA/RADIUS relay mode |
Y |
|
Y (R 8.5 and above) |
• Cisco Discovery Protocol (CDP) support on Ethernet ports |
Y |
• Dynamic Host Configuration Protocol (DHCP) relay |
N |
• Hot Standby Router Protocol (HSRP) over 10/100 Ethernet, Gigabit Ethernet, FEC, GEC, and Bridge Group Virtual Interface (BVI) |
N |
• Internet Control Message Protocol (ICMP) |
Y |
|
Y (R 8.5 and above) |
• Cisco IOS |
Y |
• CTC |
Y |
• CTM |
Y |
• Remote monitoring (RMON) |
Y |
• Simple Network Management Protocol (SNMP) |
Y |
• Transaction Language 1 (TL1) |
Y |
• Simultaneous performance monitoring (PM) counter clearing in Cisco IOS, CTC, and TL1 |
Y |
|
Y (R 8.5 and above) |
• Automatic field programmable gate array (FPGA) Upgrade |
Y |
• Network Equipment Building Systems 3 (NEBS3) compliant |
Y |
• Version up to independently upgrade individual cards |
Y |
|
Y (R 8.5 and above) |
• Framing Mode Provisioning |
N |
• Standard STS/STM and VCAT circuit provisioning for POS virtual ports |
Y (R 9.0 and above) |
• SONET/SDH alarm reporting for path alarms and other ML-Series card specific alarms |
Y |
• Raw port statistics |
Y |
• Standard inventory and card management functions |
Y |
• J1 path trace |
Y |
• Cisco IOS CLI Telnet sessions from CTC |
Y |
• Cisco IOS startup configuration file management from CTC |
Y |