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Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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Service Provider Bridging

Service provider bridging is composed of virtual local area network (VLAN) Stacking, Layer 2 Protocol Tunneling, and Provider Backbone Bridging as described in the Dell Networking OS Configuration Guide .

This chapter includes commands for the Dell Networking operating software Layer 2 Protocol Tunneling (L2PT). L2PT enables protocols to tunnel through an 802.1q tunnel.

For more information, see VLAN Stacking, Spanning Tree Protocol (STP), and GARP VLAN Registration (GVRP) .

Important Points to Remember

  • L2PT is enabled at the interface VLAN-Stack VLAN level. For more information about Stackable VLAN (VLAN-Stacking) commands, see VLAN Stacking.
  • The default behavior is to disable protocol packet tunneling through the 802.1q tunnel.
  • Rate-limiting is required to protect against bridge protocol data units (BPDU) attacks.
  • A port channel (including through link aggregation control protocol [LACP]) can be configured as a VLAN-Stack access or trunk port.
  • Address resolution protocol (ARP) packets work as expected across the tunnel.
  • Far-end failure detection (FEFD) works the same as with Layer 2 links.
  • Protocols that use Multicast MAC addresses (for example, open shortest path first [OSPF]) work as expected and carry over to the other end of the VLAN-Stack VLAN.

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