Ethernet Operations, Administration, and Maintenance |
12.2(33)SRA 12.2(33)SXH 12.4(15)T2 Cisco IOS XE 3.1.0SG |
Ethernet OAM is a protocol for installing, monitoring, and troubleshooting metro Ethernet networks 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. The Ethernet Operations, Administration, and Maintenance feature was integrated into Cisco IOS Release 12.4(15)T. The Ethernet Operations, Administration, and Maintenance feature was integrated into Cisco IOS Release 12.2(33)SXH. The following commands were introduced or modified: clear ethernet oam statistics, debug ethernet oam, ethernet oam, ethernet oam link-monitor frame, ethernet oam link-monitor frame-period, ethernet oam link-monitor frame-seconds, ethernet oam link-monitor high-threshold action, ethernet oam link-monitor on, ethernet oam link-monitor receive-crc, ethernet oam link-monitor supported, ethernet oam link-monitor symbol-period, ethernet oam link-monitor transmit-crc, ethernet oam remote-loopback, ethernet oam remote-loopback (interface), show ethernet oam discovery, show ethernet oam statistics, show ethernet oam status, show ethernet oam summary, source template (eoam), template (eoam). |
IEEE 802.3ah Link Fault RFI Support |
12.2(33)SXI |
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 OAM PDU control request packet is received with the Link Fault Status flag set. In the blocking state, the port can continue to receive OAM PDUs, detect remote link status, and automatically recover when the remote link becomes operational. The following commands were introduced or modified: ethernet oam remote-failure action. |
ISSU Support in 802.3ah OAM |
12.2(33)SRD Cisco IOS XE 3.1.0SG |
The ISSU Support in 802.3ah OAM feature allows software to be upgraded or downgraded without disrupting packet flow. In Cisco IOS Release 12.2(33)SRD, this feature was introduced on the Cisco 7600 series router. |
NSF/SSO Support in 802.3ah OAM |
12.2(33)SRD Cisco IOS XE 3.1.0SG |
The NSF/SSO Support in 802.3ah OAM feature allows processes that support dual route processors in active and standby modes to continue forwarding packets following a switchover. In Cisco IOS Release 12.2(33)SRD, this feature was introduced on the Cisco 7600 series router. |