Dell S4048T User Manual

802.1ag
Ethernet operations, administration, and maintenance (OAM) are a set of tools used to install, monitor,
troubleshoot, and manage Ethernet infrastructure deployments. Ethernet OAM consists of three main areas:
• Service layer OAM — IEEE 802.1ag connectivity fault management (CFM)
• Link layer OAM — IEEE 802.3ah OAM
• Ethernet local management Interface — (MEF-16 E-LMI)
Topics:
• Ethernet CFM
• Maintenance Domains
• Maintenance Points
• Maintenance End Points
• Implementation Information
• Configuring the CFM
• Enable Ethernet CFM
• Creating a Maintenance Domain
• Creating a Maintenance Association
• Create Maintenance Points
• Continuity Check Messages
• Sending Loopback Messages and Responses
• Sending Linktrace Messages and Responses
• Enabling CFM SNMP Traps
• Displaying Ethernet CFM Statistics
Ethernet CFM
Ethernet CFM is an end-to-end per-service-instance Ethernet OAM scheme which enables: proactive
connectivity monitoring, fault verification, and fault isolation.
The service-instance with regard to OAM for Metro/Carrier Ethernet is a virtual local area network (VLAN).
This service is sold to an end-customer by a network service provider. Typically the service provider contracts
with multiple network operators to provide end-to-end service between customers. For end-to-end service
between customer switches, connectivity must be present across the service provider through multiple
network operators.
Layer 2 Ethernet networks usually cannot be managed with IP tools such as internet control message
protocol (ICMP) Ping and IP Traceroute. Traditional IP tools often fail because:
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Dell S4048T Specifications

General

Switching Capacity	1.44 Tbps
Rack Units	1U
Form Factor	Rack-mountable
Power Device	Internal power supply
Power Redundancy	Optional
Product Type	Switch
Jumbo Frame Support	Yes
Routing Protocol	OSPF, BGP, RIP, VRRP, PIM-SM, IGMP
Remote Management Protocol	SNMP, RMON, Telnet, SSH
Features	Quality of Service (QoS), Jumbo Frames Support, Virtual Route Redundancy Protocol (VRRP), VLAN support, sFlow, Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP), IPv6 support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3ae
Dimensions (W x D x H)	17.3 in x 16 in x 1.7 in
Operating Temperature	0°C to 40 °C
Operating Humidity	10% to 90% (non-condensing)