Dell S4048T User Manual

Enabling Layer 2 Protocol Tunneling
To enable Layer 2 protocol tunneling, use the following command.
1 Verify that the system is running the default CAM profile. Use this CAM profile for L2PT.
EXEC Privilege mode
show cam-profile
2 Enable protocol tunneling globally on the system.
CONFIGURATION mode
protocol-tunnel enable
3 Tunnel BPDUs the VLAN.
INTERFACE VLAN mode
protocol-tunnel stp
Specifying a Destination MAC Address for
BPDUs
By default, Dell Networking OS uses a Dell Networking-unique MAC address for tunneling BPDUs. You can
configure another value.
To specify a destination MAC address for BPDUs, use the following command.
• Overwrite the BPDU with a user-specified destination MAC address when BPDUs are tunneled across the
provider network.
CONFIGURATION mode
protocol-tunnel destination-mac
The default is 01:01:e8:00:00:00
Setting Rate-Limit BPDUs
CAM space is allocated in sections called field processor (FP) blocks.
There are a total of 13 user-configurable FP blocks. The default number of blocks for L2PT is 0; you must
allocate at least one to enable BPDU rate-limiting.
To set the rate-lime BPDUs, use the following commands.
1 Create at least one FP group for L2PT.
CONFIGURATION mode
cam-acl l2acl
Service Provider Bridging 966

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)