Name: Dell S4048T
Brand: Dell
Rating: 5 (1 reviews)

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• Dell Networking OS supports only OSPF, OSPFv3, IS-IS, and BGP protocols as BFD clients.

Configure BFD

This section contains the following procedures.

• Configuring BFD for Physical Ports

• Configure BFD for Static Routes

• Configure BFD for OSPF

• Configure BFD for OSPFv3

• Configure BFD for IS-IS

• Configure BFD for BGP

• Configure BFD for VRRP

• Configuring Protocol Liveness

• Troubleshooting BFD

Configure BFD for Physical Ports

Configuring BFD for physical ports is supported on the C-Series and E-Series platforms only.

BFD on physical ports is useful when you do not enable the routing protocol. Without BFD, if the remote

system fails, the local system does not remove the connected route until the first failed attempt to send a

packet. When you enable BFD, the local system removes the route as soon as it stops receiving periodic

control packets from the remote system.

Configuring BFD for a physical port is a two-step process:

1 Enable BFD globally.

2 Establish a session with a next-hop neighbor.

Related Configuration Tasks

• Viewing Physical Port Session Parameters.

• Disabling and Re-Enabling BFD.

Enabling BFD Globally

You must enable BFD globally on both routers.

For more information about enabling BFD globally, refer to Establishing a Session on Physical Ports.

To enable the BFD globally, use the following command.

• Enable BFD globally.

CONFIGURATION mode

bfd enable

Bidirectional Forwarding Detection (BFD) 183

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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)