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Cisco IOS Carrier Ethernet Features Roadmap
Cisco IOS Carrier Ethernet Features Roadmap
First Published: June 28, 2007Last Updated: July 15, 2009This feature roadmap lists the Cisco IOS features documented in the Cisco IOS Carrier Ethernet Configuration Guide and maps them to the documents in which they appear. The roadmap is organized so that you can select your release train and see the features in that release. Find the feature name you are searching for and click on the URL in the "Where Documented" column to access the document containing that feature.
Many legacy features have been incorporated into the configuration files, and these features may not have entries in this roadmap. In addition, information in this roadmap supports other software releases or platforms. For the latest feature information and caveats, see the release notes for your platform and software release.
Feature and Release Support
Table 1 lists Cisco IOS Carrier Ethernet feature support for the following Cisco IOS software release trains:
Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS, Catalyst OS, and Cisco IOS XE software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Note
Table 1 lists only the Cisco IOS software release that introduced support for a given feature in a given Cisco IOS software release train. Unless noted otherwise, subsequent releases of that Cisco IOS software release train also support that feature.
Table 1 lists the most recent release of each software train first and the features in alphabetical order within the release.
Table 1 Supported Cisco IOS Carrier Ethernet Features
12.2(33)SB
EtherChannel Min-Links
The EtherChannel Min-Links feature allows a port channel to be shut down when the number of active links falls below the minimum threshold. Using the lacp min-bundle command, you can configure the minimum threshold.
IEEE 802.3ad Faster Link Switchover Time
The IEEE 802.3ad Faster Link Switchover Time feature provides a link failover time of 10 milliseconds or less and a maximum time of 2 seconds. Also, port channels remain in the LINK_UP state to eliminate reconvergence by the Spanning-Tree Protocol.
IEEE 802.3ad Maximum Number of Links Increased
The IEEE 802.3ad Maximum Number of Links Increased feature supports eight member links per Link Aggregation Control Protocol (LACP) bundle, an increase from four in previous software releases.
IEEE 802.3ad MIB
This feature introduces IEEE 802.3ad Link Aggregation (LAG) MIB support in Cisco IOS software. The LAG MIB supports the management of interfaces and ports that are part of an LACP port channel and is accessed by a Simple Network Manager Protocol (SNMP) manager application.
PPPoX Hitless Failover
The PPPoX Hitless Failover feature allows a port channel to remain in the LINK_UP state during a link switchover. In PPPoEoE, PPPoEoQinQ, and PPPoVLAN sessions, both the active and standby links assume the same configured elements after a switchover; the sessions are not forced to reestablish.
SSO—LACP
The SSO—LACP feature supports stateful switchover (SSO), In Service Software Upgrade (ISSU), Cisco Non-Stop Forwarding (NSF), and Non-Stop Routing (NSR) on Gigabit EtherChannel bundles.
12.2(31)SB
IEEE 802.3ad Link Bundling
The IEEE 802.3ad Link Bundling feature provides a method of aggregating multiple Ethernet links into a single logical channel. This feature helps improve the cost effectiveness of a device by increasing cumulative bandwidth without requiring hardware upgrades. In addition, the IEEE 802.3ad Link Bundling feature both provides a capability to dynamically provision, manage, and monitor various aggregated links and enables interoperability between various Cisco devices and devices of third-party vendors.
12.2(33)SRD1
Syslog Support for Ethernet Connectivity Fault Management
The Syslog Support for Ethernet CFM feature provides syslog support for CFM notifications that can be used to determine the status of services and of network connectivity. This feature must be implemented either on CFM over VLANs or when you use the IEEE 802.1ag on Bridge Domains feature and want to automate diagnostics or implement actions in response to CFM events.
12.2(33)SRD112.2(33)SRD
EVC MIB
The EVC MIB is a Cisco proprietary SNMP MIB for managing an Ethernet infrastructure. SNMP versions 1 and 2c are supported.
12.2(33)SRD
802.3ah SNMP MIB
The 802.3ah SNMP MIB is a Cisco proprietary OAM MIB. The 802.3ah SNMP MIB is an adaptation of the IETF draft OAM MIB and is compliant with SNMPv2. In conjunction with OAM protocols, the 802.3ah SNMP MIB provides the capability to monitor network health, identify link failures and fault conditions, and test and troubleshoot OAM-enabled links.
CFM (802.1ag) IEEE MIB
The Cisco proprietary CFM (802.1ag) IEEE MIB is a mechanism for managing connectivity and detecting faults in a network. This MIB interacts with the IF MIB and interfaces with SNMP to exchange information.
CFM Outward Facing MEPs on Switch Ports
The CFM Outward Facing MEPs on Switch Ports feature supports outward facing MEPs on switch ports. It is an enhancement to the Outward Facing MEP feature that supports the network at the distribution and access tiers.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
12.2(33)SRD
Ethernet OAM 3.0—CFM over BD, Untagged
The Ethernet OAM 3.0—CFM Over BD, Untagged feature supports Ethernet CFM on Cisco IOS devices that support the bridge-domain functionality. This feature allows untagged CFM packets to be associated with a MEP. These untagged CFM frames are mapped to an EVC or bridge domain (BD) based on the encapsulation configured on the EFP.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
E-OAM:Y.1731 (AIS/RDI/OOS)
The Y.1731 Fault Management Functions feature provides new functionality for fault and performance management in large networks and extends the functionality of Ethernet Alarm Indication Signal (ETH-AIS) and Ethernet Remote Defect Indication (ETH-RDI).
EVC ISSU
The EVC ISSU feature provides In Service Software Upgrade (ISSU) support for Ethernet virtual circuit (EVC) service instances. When a service instance state is changed to error-disable, the EVC infrastructure performs a bulk update and a runtime update of the service instance state.
EVC SSO
The EVC SSO feature provides SSO support for EVC service instances.
IEEE 802.1s Support on Ethernet Virtual Circuit Bridge Domains
The IEEE 802.1s Support on Ethernet Virtual Circuit Bridge Domains feature enables Multiple Spanning Tree (MST) on EVC interfaces.
IEEE 802.1s Support on Ethernet Virtual Circuit Bridge Domains
ISSU Support in 802.3ah OAM
ISSU allows you to perform a Cisco IOS software upgrade or downgrade without disrupting packet flow. ISSU lowers the impact that planned maintenance activities have on network availability by allowing software changes while the system is in service.
"Using Ethernet Operations, Administration, and Maintenance"
ISSU Support in CFM 802.1ag/1.0d
ISSU allows you to perform a Cisco IOS software upgrade or downgrade without disrupting packet flow. ISSU lowers the impact that planned maintenance activities have on network availability by allowing software changes while the system is in service.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
12.2(33)SRD
ISSU Support in E-LMI
ISSU allows you to perform a Cisco IOS software upgrade or downgrade without disrupting packet flow. ISSU lowers the impact that planned maintenance activities have on network availability by allowing software changes while the system is in service.
ISSU is automatically enabled in Ethernet LMI.
"Configuring Ethernet Local Management Interface at a Provider Edge"
Layer 2 Access Control Lists on EVCs
The Layer 2 Access Control Lists on EVCs feature allows you to implement access control lists (ACLs) on EVCs.
MAC Address Limiting for Service Instances and Bridge Domains
The MAC Address Limiting for Service Instances and Bridge Domains feature addresses port security by providing the capability to control and filter MAC address learning behavior at the granularity of a per-service instance. When a violation requires a shutdown, only the customer assigned to a given service instance is affected. MAC address limiting, a type of MAC security, can be referred to as a MAC security component or element.
MAC Address Limiting for Service Instances and Bridge Domains
NSF/SSO Support in 802.3ah OAM
The redundancy configurations Stateful Switchover (SSO) and Non-Stop Forwarding (NSF) are automatically enabled in Ethernet OAM. NSF interoperates with the SSO feature to minimize network downtime following a switchover. The primary function of Cisco NSF is to continue forwarding IP packets following a route processor (RP) switchover.
"Using Ethernet Operations, Administration, and Maintenance"
NSF/SSO Support in CFM 802.1ag/1.0d
The redundancy configurations SSO and NSF are automatically enabled in Ethernet CFM. NSF interoperates with the SSO feature to minimize network downtime following a switchover. The primary function of Cisco NSF is to continue forwarding IP packets following an RP switchover.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
NSF/SSO Support in E-LMI
The redundancy configurations SSO and NSF are supported in Ethernet LMI and are automatically enabled. A switchover from an active to a standby RP occurs when the active RP fails, is removed from the networking device, or is manually taken down for maintenance. NSF interoperates with the SSO feature to minimize network downtime following a switchover. The primary function of Cisco NSF is to continue forwarding IP packets following an RP switchover.
"Configuring Ethernet Local Management Interface at a Provider Edge"
12.2(33)SRC
EtherChannel Load Distribution
The EtherChannel Load Distribution feature uses a port reassignment scheme that enhances EtherChannel availability by limiting the load distribution reassignment to the port that is added or deleted. The new load on existing bundled ports does not conflict with the load programmed on those ports when a port is added or deleted.
LACP Single Fault Direct Load Balance Swapping
The LACP Single Fault Direct Load Balance Swapping feature reassigns the load balance bits so that the swapped-in hot standby port is assigned the load balance bits of the failed port, and the load balance bits of the remaining ports in the aggregation remain unchanged. When the swapped-in port is bundled, the loadshare is recalculated and the stored loadshare of the failed port is assigned to the swapped-in port. The remaining ports in the bundle are not affected.
12.2(33)SRC12.2(33)SRB
IEEE 802.3ad Link Bundling
The IEEE 802.3ad Link Bundling feature provides a method of aggregating multiple Ethernet links into a single logical channel. This feature helps improve the cost effectiveness of a device by increasing cumulative bandwidth without requiring hardware upgrades. In addition, the IEEE 802.3ad Link Bundling feature both provides a capability to dynamically provision, manage, and monitor various aggregated links and enables interoperability between various Cisco devices and devices of third-party vendors.
Outward Facing MEP
The Outward Facing MEP feature is an enhancement to Ethernet CFM that supports the distribution and access environments by supporting outward facing maintenance endpoints (MEPs) on routed (Layer 3) ports. Outward facing MEPs can also be used to monitor network-to-network interfaces between operators on Layer 2 switch ports.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
Remote Port Shutdown
The Remote Port Shutdown feature uses Ethernet LMI in an Ethernet over Multiprotocol Label Switching (EoMPLS) network to propagate remote link status to a CE device.
12.2(33)SRB
Ethernet Local Management Interface at a Provider Edge
Ethernet Local Management Interface (LMI) is an Ethernet OAM protocol between a customer edge (CE) device and a provider edge (PE) device. Ethernet LMI provides CE devices with the status of Ethernet virtual circuits (EVCs) for large Ethernet MANs and WANs and provides information that enables CE devices to autoconfigure. Ethernet LMI runs on the PE-CE user network interface (UNI) link and notifies a CE device of both the operating state of an EVC and the time when an EVC is added or deleted.
"Configuring Ethernet Local Management Interface at a Provider Edge"
Ethernet OAM and Ethernet CFM Interworking
The Ethernet OAM and Ethernet CFM Interworking feature enables Ethernet OAM and CFM to function together in a network.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
12.2(33)SRB12.2(33)SRA
Ethernet Connectivity Fault Management
Ethernet Connectivity Fault Management (CFM) is an end-to-end per-service-instance Ethernet layer OAM protocol. It includes proactive connectivity monitoring, fault verification, and fault isolation for large Ethernet MANs and WANs.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
12.2(33)SRA
Ethernet Operations, Administration, and Maintenance
Ethernet operations, administration, and maintenance (OAM) is a protocol for installing, monitoring, and troubleshooting Ethernet metropolitan-area networks (MANs) and Ethernet WANs. It relies on a new, optional sublayer in the data link layer of the Open Systems Interconnection (OSI) model. The OAM features covered by this protocol are Discovery, Link Monitoring, Remote Fault Detection, Remote Loopback, and Cisco Proprietary Extensions.
"Using Ethernet Operations, Administration, and Maintenance"
12.2(33)SXI2
802.1ag - IEEE D8.1 Standard-Compliant CFM, Y.1731 multicast LBM / AIS / RDI / LCK, IP SLA for Ethernet
Ethernet CFM is an end-to-end per-service-instance Ethernet layer OAM protocol. CFM includes proactive connectivity monitoring, fault verification, and fault isolation for large Ethernet MANs and WANs.
This feature is the implementation of IEEE 802.1ag Standard CFM in Cisco IOS software.
"Configuring IEEE Standard-Compliant Ethernet CFM in a Service Provider Network"
12.2(33)SXI
Ethernet OAM and Ethernet CFM Interworking
The Ethernet OAM and Ethernet CFM Interworking feature enables Ethernet OAM and CFM to function together in a network.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
IEEE 802.3ah Link Fault RFI Support
The IEEE 802.3ah Link Fault RFI Support feature provides a per-port configurable option that moves a port into a blocking state when an OAMPDU control request packet is received with the Link Fault Status flag set. In the blocking state, the port can continue to receive BPDUs and OAMPDUs, detect remote link status, and automatically recover when the remote link becomes operational.
"Using Ethernet Operations, Administration, and Maintenance"
12.2(33)SXI 12.2(33)SXH
Ethernet Connectivity Fault Management
Ethernet Connectivity Fault Management (CFM) is an end-to-end per-service-instance Ethernet layer OAM protocol. It includes proactive connectivity monitoring, fault verification, and fault isolation for large Ethernet MANs and WANs.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
Ethernet Operations, Administration, and Maintenance
Ethernet OAM is a protocol for installing, monitoring, and troubleshooting Ethernet MANs and Ethernet WANs. It relies on a new, optional sublayer in the data link layer of the OSI model. The OAM features covered by this protocol are Discovery, Link Monitoring, Remote Fault Detection, Remote Loopback, and Cisco Proprietary Extensions.
"Using Ethernet Operations, Administration, and Maintenance"
12.2(33)SXH
IEEE 802.1ab LLDP (Link Layer Discovery Protocol)
IEEE 802.1ab LLDP (Link Layer Discovery Protocol) is an optional link layer protocol for network topology discovery in multivendor networks. Discovery information includes device and port attachments, switch connections, and paths among clients, servers, switches, and routers for application and network services. As a network management tool, LLDP provides accurate network mapping, inventory data, and network troubleshooting information.
"Using Link Layer Discovery Protocol in Multivendor Networks"
IEEE 802.1ab MED
LLDP-Media Endpoint Device (MED) is an LLDP enhancement for voice over IP (VoIP) applications. It operates only between endpoint devices such as IP phones and conference bridges and network connectivity devices such as routers and switches.
"Using Link Layer Discovery Protocol in Multivendor Networks"
12.4(15)T2
Ethernet Connectivity Fault Management
Ethernet Connectivity Fault Management (CFM) is an end-to-end per-service-instance Ethernet layer OAM protocol. It includes proactive connectivity monitoring, fault verification, and fault isolation for large Ethernet MANs and WANs.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
Ethernet Operations, Administration, and Maintenance
Ethernet OAM is a protocol for installing, monitoring, and troubleshooting Ethernet MANs and Ethernet WANs. It relies on a new, optional sublayer in the data link layer of the OSI model. The OAM features covered by this protocol are Discovery, Link Monitoring, Remote Fault Detection, Remote Loopback, and Cisco Proprietary Extensions.
"Using Ethernet Operations, Administration, and Maintenance"
12.4(15)T2 12.4(9)T
Ethernet Local Management Interface
Ethernet LMI is an Ethernet layer OAM protocol. It provides information that enables autoconfiguration of CE devices and provides the status of EVCs for large Ethernet MANs and WANs. Specifically, Ethernet LMI notifies a CE device of both the operating state of an EVC and the time when an EVC is added or deleted. Ethernet LMI also communicates the attributes of an EVC and a UNI to a CE device.
12.4(11)T
Outward Facing MEP
The Outward Facing MEP feature is an enhancement to Ethernet CFM that supports the distribution and access environments by supporting outward facing MEPs on routed (Layer 3) ports. Outward facing MEPs can also be used to monitor network-to-network interfaces between operators on Layer 2 switch ports.
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network"
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